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wine/dlls/wined3d/glsl_shader.c
Stefan Dösinger 620a423b22 wined3d: Kill the GL_ATI_envmap_bumpmap code. 
GL_ATI_envmap_bumpmap provides two things: Signed V8U8 pixel formats,
and bump mapping. The extension is only supported on fglrx, and this
driver also supports GL_ARB_fragment_program.  Thus the bump mapping
code is never used on any driver out there.  Furthermore, if it is
used, it tends to crash the driver

The signed pixel format is used, as it can be used by pixel shaders or
the ARBfp replacement. However, the format is broken in fglrx, and
negative values are clamped to 0.0. This results in test
failures. WineD3D has an alternative codepath using scale+bias to
enable V8U8 using a standard signed RGB which works correctly on
fglrx.
2008-11-04 11:41:14 +01:00

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/*
* GLSL pixel and vertex shader implementation
*
* Copyright 2006 Jason Green
* Copyright 2006-2007 Henri Verbeet
* Copyright 2007-2008 Stefan Dösinger for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
/*
* D3D shader asm has swizzles on source parameters, and write masks for
* destination parameters. GLSL uses swizzles for both. The result of this is
* that for example "mov dst.xw, src.zyxw" becomes "dst.xw = src.zw" in GLSL.
* Ie, to generate a proper GLSL source swizzle, we need to take the D3D write
* mask for the destination parameter into account.
*/
#include "config.h"
#include <stdio.h>
#include "wined3d_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
WINE_DECLARE_DEBUG_CHANNEL(d3d_constants);
WINE_DECLARE_DEBUG_CHANNEL(d3d_caps);
#define GLINFO_LOCATION (*gl_info)
typedef struct {
char reg_name[150];
char mask_str[6];
} glsl_dst_param_t;
typedef struct {
char reg_name[150];
char param_str[100];
} glsl_src_param_t;
typedef struct {
const char *name;
DWORD coord_mask;
} glsl_sample_function_t;
/* GLSL shader private data */
struct shader_glsl_priv {
struct hash_table_t *glsl_program_lookup;
struct glsl_shader_prog_link *glsl_program;
GLhandleARB depth_blt_program[tex_type_count];
};
/* Struct to maintain data about a linked GLSL program */
struct glsl_shader_prog_link {
struct list vshader_entry;
struct list pshader_entry;
GLhandleARB programId;
GLhandleARB *vuniformF_locations;
GLhandleARB *puniformF_locations;
GLhandleARB vuniformI_locations[MAX_CONST_I];
GLhandleARB puniformI_locations[MAX_CONST_I];
GLhandleARB posFixup_location;
GLhandleARB bumpenvmat_location[MAX_TEXTURES];
GLhandleARB luminancescale_location[MAX_TEXTURES];
GLhandleARB luminanceoffset_location[MAX_TEXTURES];
GLhandleARB srgb_comparison_location;
GLhandleARB srgb_mul_low_location;
GLhandleARB ycorrection_location;
GLenum vertex_color_clamp;
GLhandleARB vshader;
GLhandleARB pshader;
};
typedef struct {
GLhandleARB vshader;
GLhandleARB pshader;
} glsl_program_key_t;
/** Prints the GLSL info log which will contain error messages if they exist */
static void print_glsl_info_log(WineD3D_GL_Info *gl_info, GLhandleARB obj) {
int infologLength = 0;
char *infoLog;
int i;
BOOL is_spam;
const char *spam[] = {
"Vertex shader was successfully compiled to run on hardware.\n", /* fglrx */
"Fragment shader was successfully compiled to run on hardware.\n", /* fglrx */
"Fragment shader(s) linked, vertex shader(s) linked. \n ", /* fglrx, with \n */
"Fragment shader(s) linked, vertex shader(s) linked.", /* fglrx, no \n */
"Vertex shader(s) linked, no fragment shader(s) defined. \n ", /* fglrx, with \n */
"Vertex shader(s) linked, no fragment shader(s) defined.", /* fglrx, no \n */
"Fragment shader was successfully compiled to run on hardware.\nWARNING: 0:1: extension 'GL_ARB_draw_buffers' is not supported",
"Fragment shader(s) linked, no vertex shader(s) defined.", /* fglrx, no \n */
"Fragment shader(s) linked, no vertex shader(s) defined. \n ", /* fglrx, with \n */
"WARNING: 0:2: extension 'GL_ARB_draw_buffers' is not supported\n" /* MacOS ati */
};
GL_EXTCALL(glGetObjectParameterivARB(obj,
GL_OBJECT_INFO_LOG_LENGTH_ARB,
&infologLength));
/* A size of 1 is just a null-terminated string, so the log should be bigger than
* that if there are errors. */
if (infologLength > 1)
{
/* Fglrx doesn't terminate the string properly, but it tells us the proper length.
* So use HEAP_ZERO_MEMORY to avoid uninitialized bytes
*/
infoLog = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, infologLength);
GL_EXTCALL(glGetInfoLogARB(obj, infologLength, NULL, infoLog));
is_spam = FALSE;
for(i = 0; i < sizeof(spam) / sizeof(spam[0]); i++) {
if(strcmp(infoLog, spam[i]) == 0) {
is_spam = TRUE;
break;
}
}
if(is_spam) {
TRACE("Spam received from GLSL shader #%u: %s\n", obj, debugstr_a(infoLog));
} else {
FIXME("Error received from GLSL shader #%u: %s\n", obj, debugstr_a(infoLog));
}
HeapFree(GetProcessHeap(), 0, infoLog);
}
}
/**
* Loads (pixel shader) samplers
*/
static void shader_glsl_load_psamplers(
WineD3D_GL_Info *gl_info,
IWineD3DStateBlock* iface,
GLhandleARB programId) {
IWineD3DStateBlockImpl* stateBlock = (IWineD3DStateBlockImpl*) iface;
GLhandleARB name_loc;
int i;
char sampler_name[20];
for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i) {
snprintf(sampler_name, sizeof(sampler_name), "Psampler%d", i);
name_loc = GL_EXTCALL(glGetUniformLocationARB(programId, sampler_name));
if (name_loc != -1) {
int mapped_unit = stateBlock->wineD3DDevice->texUnitMap[i];
if (mapped_unit != -1 && mapped_unit < GL_LIMITS(fragment_samplers)) {
TRACE("Loading %s for texture %d\n", sampler_name, mapped_unit);
GL_EXTCALL(glUniform1iARB(name_loc, mapped_unit));
checkGLcall("glUniform1iARB");
} else {
ERR("Trying to load sampler %s on unsupported unit %d\n", sampler_name, mapped_unit);
}
}
}
}
static void shader_glsl_load_vsamplers(WineD3D_GL_Info *gl_info, IWineD3DStateBlock* iface, GLhandleARB programId) {
IWineD3DStateBlockImpl* stateBlock = (IWineD3DStateBlockImpl*) iface;
GLhandleARB name_loc;
char sampler_name[20];
int i;
for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i) {
snprintf(sampler_name, sizeof(sampler_name), "Vsampler%d", i);
name_loc = GL_EXTCALL(glGetUniformLocationARB(programId, sampler_name));
if (name_loc != -1) {
int mapped_unit = stateBlock->wineD3DDevice->texUnitMap[MAX_FRAGMENT_SAMPLERS + i];
if (mapped_unit != -1 && mapped_unit < GL_LIMITS(combined_samplers)) {
TRACE("Loading %s for texture %d\n", sampler_name, mapped_unit);
GL_EXTCALL(glUniform1iARB(name_loc, mapped_unit));
checkGLcall("glUniform1iARB");
} else {
ERR("Trying to load sampler %s on unsupported unit %d\n", sampler_name, mapped_unit);
}
}
}
}
/**
* Loads floating point constants (aka uniforms) into the currently set GLSL program.
* When constant_list == NULL, it will load all the constants.
*/
static void shader_glsl_load_constantsF(IWineD3DBaseShaderImpl* This, WineD3D_GL_Info *gl_info,
unsigned int max_constants, float* constants, GLhandleARB *constant_locations,
struct list *constant_list) {
constants_entry *constant;
local_constant* lconst;
GLhandleARB tmp_loc;
DWORD i, j, k;
DWORD *idx;
if (TRACE_ON(d3d_shader)) {
LIST_FOR_EACH_ENTRY(constant, constant_list, constants_entry, entry) {
idx = constant->idx;
j = constant->count;
while (j--) {
i = *idx++;
tmp_loc = constant_locations[i];
if (tmp_loc != -1) {
TRACE_(d3d_constants)("Loading constants %i: %f, %f, %f, %f\n", i,
constants[i * 4 + 0], constants[i * 4 + 1],
constants[i * 4 + 2], constants[i * 4 + 3]);
}
}
}
}
/* 1.X pshaders have the constants clamped to [-1;1] implicitly. */
if(WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) == 1 &&
shader_is_pshader_version(This->baseShader.hex_version)) {
float lcl_const[4];
LIST_FOR_EACH_ENTRY(constant, constant_list, constants_entry, entry) {
idx = constant->idx;
j = constant->count;
while (j--) {
i = *idx++;
tmp_loc = constant_locations[i];
if (tmp_loc != -1) {
/* We found this uniform name in the program - go ahead and send the data */
k = i * 4;
if(constants[k + 0] < -1.0) lcl_const[0] = -1.0;
else if(constants[k + 0] > 1.0) lcl_const[0] = 1.0;
else lcl_const[0] = constants[k + 0];
if(constants[k + 1] < -1.0) lcl_const[1] = -1.0;
else if(constants[k + 1] > 1.0) lcl_const[1] = 1.0;
else lcl_const[1] = constants[k + 1];
if(constants[k + 2] < -1.0) lcl_const[2] = -1.0;
else if(constants[k + 2] > 1.0) lcl_const[2] = 1.0;
else lcl_const[2] = constants[k + 2];
if(constants[k + 3] < -1.0) lcl_const[3] = -1.0;
else if(constants[k + 3] > 1.0) lcl_const[3] = 1.0;
else lcl_const[3] = constants[k + 3];
GL_EXTCALL(glUniform4fvARB(tmp_loc, 1, lcl_const));
}
}
}
} else {
LIST_FOR_EACH_ENTRY(constant, constant_list, constants_entry, entry) {
idx = constant->idx;
j = constant->count;
while (j--) {
i = *idx++;
tmp_loc = constant_locations[i];
if (tmp_loc != -1) {
/* We found this uniform name in the program - go ahead and send the data */
GL_EXTCALL(glUniform4fvARB(tmp_loc, 1, constants + (i * 4)));
}
}
}
}
checkGLcall("glUniform4fvARB()");
if(!This->baseShader.load_local_constsF) {
TRACE("No need to load local float constants for this shader\n");
return;
}
/* Load immediate constants */
if (TRACE_ON(d3d_shader)) {
LIST_FOR_EACH_ENTRY(lconst, &This->baseShader.constantsF, local_constant, entry) {
tmp_loc = constant_locations[lconst->idx];
if (tmp_loc != -1) {
GLfloat* values = (GLfloat*)lconst->value;
TRACE_(d3d_constants)("Loading local constants %i: %f, %f, %f, %f\n", lconst->idx,
values[0], values[1], values[2], values[3]);
}
}
}
/* Immediate constants are clamped to [-1;1] at shader creation time if needed */
LIST_FOR_EACH_ENTRY(lconst, &This->baseShader.constantsF, local_constant, entry) {
tmp_loc = constant_locations[lconst->idx];
if (tmp_loc != -1) {
/* We found this uniform name in the program - go ahead and send the data */
GL_EXTCALL(glUniform4fvARB(tmp_loc, 1, (GLfloat*)lconst->value));
}
}
checkGLcall("glUniform4fvARB()");
}
/**
* Loads integer constants (aka uniforms) into the currently set GLSL program.
* When @constants_set == NULL, it will load all the constants.
*/
static void shader_glsl_load_constantsI(
IWineD3DBaseShaderImpl* This,
WineD3D_GL_Info *gl_info,
GLhandleARB programId,
GLhandleARB locations[MAX_CONST_I],
unsigned max_constants,
int* constants,
BOOL* constants_set) {
int i;
struct list* ptr;
for (i=0; i<max_constants; ++i) {
if (NULL == constants_set || constants_set[i]) {
TRACE_(d3d_constants)("Loading constants %i: %i, %i, %i, %i\n",
i, constants[i*4], constants[i*4+1], constants[i*4+2], constants[i*4+3]);
/* We found this uniform name in the program - go ahead and send the data */
GL_EXTCALL(glUniform4ivARB(locations[i], 1, &constants[i*4]));
checkGLcall("glUniform4ivARB");
}
}
/* Load immediate constants */
ptr = list_head(&This->baseShader.constantsI);
while (ptr) {
local_constant* lconst = LIST_ENTRY(ptr, struct local_constant, entry);
unsigned int idx = lconst->idx;
GLint* values = (GLint*) lconst->value;
TRACE_(d3d_constants)("Loading local constants %i: %i, %i, %i, %i\n", idx,
values[0], values[1], values[2], values[3]);
/* We found this uniform name in the program - go ahead and send the data */
GL_EXTCALL(glUniform4ivARB(locations[idx], 1, values));
checkGLcall("glUniform4ivARB");
ptr = list_next(&This->baseShader.constantsI, ptr);
}
}
/**
* Loads boolean constants (aka uniforms) into the currently set GLSL program.
* When @constants_set == NULL, it will load all the constants.
*/
static void shader_glsl_load_constantsB(
IWineD3DBaseShaderImpl* This,
WineD3D_GL_Info *gl_info,
GLhandleARB programId,
unsigned max_constants,
BOOL* constants,
BOOL* constants_set) {
GLhandleARB tmp_loc;
int i;
char tmp_name[8];
char is_pshader = shader_is_pshader_version(This->baseShader.hex_version);
const char* prefix = is_pshader? "PB":"VB";
struct list* ptr;
for (i=0; i<max_constants; ++i) {
if (NULL == constants_set || constants_set[i]) {
TRACE_(d3d_constants)("Loading constants %i: %i;\n", i, constants[i]);
/* TODO: Benchmark and see if it would be beneficial to store the
* locations of the constants to avoid looking up each time */
snprintf(tmp_name, sizeof(tmp_name), "%s[%i]", prefix, i);
tmp_loc = GL_EXTCALL(glGetUniformLocationARB(programId, tmp_name));
if (tmp_loc != -1) {
/* We found this uniform name in the program - go ahead and send the data */
GL_EXTCALL(glUniform1ivARB(tmp_loc, 1, &constants[i]));
checkGLcall("glUniform1ivARB");
}
}
}
/* Load immediate constants */
ptr = list_head(&This->baseShader.constantsB);
while (ptr) {
local_constant* lconst = LIST_ENTRY(ptr, struct local_constant, entry);
unsigned int idx = lconst->idx;
GLint* values = (GLint*) lconst->value;
TRACE_(d3d_constants)("Loading local constants %i: %i\n", idx, values[0]);
snprintf(tmp_name, sizeof(tmp_name), "%s[%i]", prefix, idx);
tmp_loc = GL_EXTCALL(glGetUniformLocationARB(programId, tmp_name));
if (tmp_loc != -1) {
/* We found this uniform name in the program - go ahead and send the data */
GL_EXTCALL(glUniform1ivARB(tmp_loc, 1, values));
checkGLcall("glUniform1ivARB");
}
ptr = list_next(&This->baseShader.constantsB, ptr);
}
}
/**
* Loads the app-supplied constants into the currently set GLSL program.
*/
static void shader_glsl_load_constants(
IWineD3DDevice* device,
char usePixelShader,
char useVertexShader) {
IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) device;
struct shader_glsl_priv *priv = (struct shader_glsl_priv *)deviceImpl->shader_priv;
IWineD3DStateBlockImpl* stateBlock = deviceImpl->stateBlock;
WineD3D_GL_Info *gl_info = &deviceImpl->adapter->gl_info;
GLhandleARB *constant_locations;
struct list *constant_list;
GLhandleARB programId;
struct glsl_shader_prog_link *prog = priv->glsl_program;
unsigned int i;
if (!prog) {
/* No GLSL program set - nothing to do. */
return;
}
programId = prog->programId;
if (useVertexShader) {
IWineD3DBaseShaderImpl* vshader = (IWineD3DBaseShaderImpl*) stateBlock->vertexShader;
constant_locations = prog->vuniformF_locations;
constant_list = &stateBlock->set_vconstantsF;
/* Load DirectX 9 float constants/uniforms for vertex shader */
shader_glsl_load_constantsF(vshader, gl_info, GL_LIMITS(vshader_constantsF),
stateBlock->vertexShaderConstantF, constant_locations, constant_list);
/* Load DirectX 9 integer constants/uniforms for vertex shader */
shader_glsl_load_constantsI(vshader, gl_info, programId,
prog->vuniformI_locations, MAX_CONST_I,
stateBlock->vertexShaderConstantI,
stateBlock->changed.vertexShaderConstantsI);
/* Load DirectX 9 boolean constants/uniforms for vertex shader */
shader_glsl_load_constantsB(vshader, gl_info, programId, MAX_CONST_B,
stateBlock->vertexShaderConstantB,
stateBlock->changed.vertexShaderConstantsB);
/* Upload the position fixup params */
GL_EXTCALL(glUniform4fvARB(prog->posFixup_location, 1, &deviceImpl->posFixup[0]));
checkGLcall("glUniform4fvARB");
}
if (usePixelShader) {
IWineD3DBaseShaderImpl* pshader = (IWineD3DBaseShaderImpl*) stateBlock->pixelShader;
constant_locations = prog->puniformF_locations;
constant_list = &stateBlock->set_pconstantsF;
/* Load DirectX 9 float constants/uniforms for pixel shader */
shader_glsl_load_constantsF(pshader, gl_info, GL_LIMITS(pshader_constantsF),
stateBlock->pixelShaderConstantF, constant_locations, constant_list);
/* Load DirectX 9 integer constants/uniforms for pixel shader */
shader_glsl_load_constantsI(pshader, gl_info, programId,
prog->puniformI_locations, MAX_CONST_I,
stateBlock->pixelShaderConstantI,
stateBlock->changed.pixelShaderConstantsI);
/* Load DirectX 9 boolean constants/uniforms for pixel shader */
shader_glsl_load_constantsB(pshader, gl_info, programId, MAX_CONST_B,
stateBlock->pixelShaderConstantB,
stateBlock->changed.pixelShaderConstantsB);
/* Upload the environment bump map matrix if needed. The needsbumpmat member specifies the texture stage to load the matrix from.
* It can't be 0 for a valid texbem instruction.
*/
for(i = 0; i < ((IWineD3DPixelShaderImpl *) pshader)->numbumpenvmatconsts; i++) {
IWineD3DPixelShaderImpl *ps = (IWineD3DPixelShaderImpl *) pshader;
int stage = ps->luminanceconst[i].texunit;
float *data = (float *) &stateBlock->textureState[(int) ps->bumpenvmatconst[i].texunit][WINED3DTSS_BUMPENVMAT00];
GL_EXTCALL(glUniformMatrix2fvARB(prog->bumpenvmat_location[i], 1, 0, data));
checkGLcall("glUniformMatrix2fvARB");
/* texbeml needs the luminance scale and offset too. If texbeml is used, needsbumpmat
* is set too, so we can check that in the needsbumpmat check
*/
if(ps->baseShader.reg_maps.luminanceparams[stage]) {
GLfloat *scale = (GLfloat *) &stateBlock->textureState[stage][WINED3DTSS_BUMPENVLSCALE];
GLfloat *offset = (GLfloat *) &stateBlock->textureState[stage][WINED3DTSS_BUMPENVLOFFSET];
GL_EXTCALL(glUniform1fvARB(prog->luminancescale_location[i], 1, scale));
checkGLcall("glUniform1fvARB");
GL_EXTCALL(glUniform1fvARB(prog->luminanceoffset_location[i], 1, offset));
checkGLcall("glUniform1fvARB");
}
}
if(((IWineD3DPixelShaderImpl *) pshader)->srgb_enabled &&
!((IWineD3DPixelShaderImpl *) pshader)->srgb_mode_hardcoded) {
float comparison[4];
float mul_low[4];
if(stateBlock->renderState[WINED3DRS_SRGBWRITEENABLE]) {
comparison[0] = srgb_cmp; comparison[1] = srgb_cmp;
comparison[2] = srgb_cmp; comparison[3] = srgb_cmp;
mul_low[0] = srgb_mul_low; mul_low[1] = srgb_mul_low;
mul_low[2] = srgb_mul_low; mul_low[3] = srgb_mul_low;
} else {
comparison[0] = 1.0 / 0.0; comparison[1] = 1.0 / 0.0;
comparison[2] = 1.0 / 0.0; comparison[3] = 1.0 / 0.0;
mul_low[0] = 1.0; mul_low[1] = 1.0;
mul_low[2] = 1.0; mul_low[3] = 1.0;
}
GL_EXTCALL(glUniform4fvARB(prog->srgb_comparison_location, 1, comparison));
GL_EXTCALL(glUniform4fvARB(prog->srgb_mul_low_location, 1, mul_low));
}
if(((IWineD3DPixelShaderImpl *) pshader)->vpos_uniform) {
float correction_params[4];
if(deviceImpl->render_offscreen) {
correction_params[0] = 0.0;
correction_params[1] = 1.0;
} else {
/* position is window relative, not viewport relative */
correction_params[0] = ((IWineD3DSurfaceImpl *) deviceImpl->render_targets[0])->currentDesc.Height;
correction_params[1] = -1.0;
}
GL_EXTCALL(glUniform4fvARB(prog->ycorrection_location, 1, correction_params));
}
}
}
/** Generate the variable & register declarations for the GLSL output target */
static void shader_generate_glsl_declarations(
IWineD3DBaseShader *iface,
shader_reg_maps* reg_maps,
SHADER_BUFFER* buffer,
WineD3D_GL_Info* gl_info) {
IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) This->baseShader.device;
int i;
unsigned int extra_constants_needed = 0;
local_constant* lconst;
/* There are some minor differences between pixel and vertex shaders */
char pshader = shader_is_pshader_version(This->baseShader.hex_version);
char prefix = pshader ? 'P' : 'V';
/* Prototype the subroutines */
for (i = 0; i < This->baseShader.limits.label; i++) {
if (reg_maps->labels[i])
shader_addline(buffer, "void subroutine%u();\n", i);
}
/* Declare the constants (aka uniforms) */
if (This->baseShader.limits.constant_float > 0) {
unsigned max_constantsF = min(This->baseShader.limits.constant_float,
(pshader ? GL_LIMITS(pshader_constantsF) : GL_LIMITS(vshader_constantsF)));
shader_addline(buffer, "uniform vec4 %cC[%u];\n", prefix, max_constantsF);
}
if (This->baseShader.limits.constant_int > 0)
shader_addline(buffer, "uniform ivec4 %cI[%u];\n", prefix, This->baseShader.limits.constant_int);
if (This->baseShader.limits.constant_bool > 0)
shader_addline(buffer, "uniform bool %cB[%u];\n", prefix, This->baseShader.limits.constant_bool);
if(!pshader) {
shader_addline(buffer, "uniform vec4 posFixup;\n");
/* Predeclaration; This function is added at link time based on the pixel shader.
* VS 3.0 shaders have an array OUT[] the shader writes to, earlier versions don't have
* that. We know the input to the reorder function at vertex shader compile time, so
* we can deal with that. The reorder function for a 1.x and 2.x vertex shader can just
* read gl_FrontColor. The output depends on the pixel shader. The reorder function for a
* 1.x and 2.x pshader or for fixed function will write gl_FrontColor, and for a 3.0 shader
* it will write to the varying array. Here we depend on the shader optimizer on sorting that
* out. The nvidia driver only does that if the parameter is inout instead of out, hence the
* inout.
*/
if(This->baseShader.hex_version >= WINED3DVS_VERSION(3, 0)) {
shader_addline(buffer, "void order_ps_input(in vec4[%u]);\n", MAX_REG_OUTPUT);
} else {
shader_addline(buffer, "void order_ps_input();\n");
}
} else {
IWineD3DPixelShaderImpl *ps_impl = (IWineD3DPixelShaderImpl *) This;
ps_impl->numbumpenvmatconsts = 0;
for(i = 0; i < (sizeof(reg_maps->bumpmat) / sizeof(reg_maps->bumpmat[0])); i++) {
if(!reg_maps->bumpmat[i]) {
continue;
}
ps_impl->bumpenvmatconst[(int) ps_impl->numbumpenvmatconsts].texunit = i;
shader_addline(buffer, "uniform mat2 bumpenvmat%d;\n", i);
if(reg_maps->luminanceparams) {
ps_impl->luminanceconst[(int) ps_impl->numbumpenvmatconsts].texunit = i;
shader_addline(buffer, "uniform float luminancescale%d;\n", i);
shader_addline(buffer, "uniform float luminanceoffset%d;\n", i);
extra_constants_needed++;
} else {
ps_impl->luminanceconst[(int) ps_impl->numbumpenvmatconsts].texunit = -1;
}
extra_constants_needed++;
ps_impl->numbumpenvmatconsts++;
}
if(device->stateBlock->renderState[WINED3DRS_SRGBWRITEENABLE]) {
ps_impl->srgb_enabled = 1;
if(This->baseShader.limits.constant_float + extra_constants_needed + 1 < GL_LIMITS(pshader_constantsF)) {
shader_addline(buffer, "uniform vec4 srgb_mul_low;\n");
shader_addline(buffer, "uniform vec4 srgb_comparison;\n");
ps_impl->srgb_mode_hardcoded = 0;
extra_constants_needed++;
} else {
ps_impl->srgb_mode_hardcoded = 1;
shader_addline(buffer, "const vec4 srgb_mul_low = vec4(%f, %f, %f, %f);\n",
srgb_mul_low, srgb_mul_low, srgb_mul_low, srgb_mul_low);
shader_addline(buffer, "const vec4 srgb_comparison = vec4(%f, %f, %f, %f);\n",
srgb_cmp, srgb_cmp, srgb_cmp, srgb_cmp);
}
} else {
IWineD3DPixelShaderImpl *ps_impl = (IWineD3DPixelShaderImpl *) This;
/* Do not write any srgb fixup into the shader to save shader size and processing time.
* As a consequence, we can't toggle srgb write on without recompilation
*/
ps_impl->srgb_enabled = 0;
ps_impl->srgb_mode_hardcoded = 1;
}
if(reg_maps->vpos || reg_maps->usesdsy) {
if(This->baseShader.limits.constant_float + extra_constants_needed + 1 < GL_LIMITS(pshader_constantsF)) {
shader_addline(buffer, "uniform vec4 ycorrection;\n");
((IWineD3DPixelShaderImpl *) This)->vpos_uniform = 1;
extra_constants_needed++;
} else {
/* This happens because we do not have proper tracking of the constant registers that are
* actually used, only the max limit of the shader version
*/
FIXME("Cannot find a free uniform for vpos correction params\n");
shader_addline(buffer, "const vec4 ycorrection = vec4(%f, %f, 0.0, 0.0);\n",
device->render_offscreen ? 0.0 : ((IWineD3DSurfaceImpl *) device->render_targets[0])->currentDesc.Height,
device->render_offscreen ? 1.0 : -1.0);
}
shader_addline(buffer, "vec4 vpos;\n");
}
}
/* Declare texture samplers */
for (i = 0; i < This->baseShader.limits.sampler; i++) {
if (reg_maps->samplers[i]) {
DWORD stype = reg_maps->samplers[i] & WINED3DSP_TEXTURETYPE_MASK;
switch (stype) {
case WINED3DSTT_1D:
shader_addline(buffer, "uniform sampler1D %csampler%u;\n", prefix, i);
break;
case WINED3DSTT_2D:
if(device->stateBlock->textures[i] &&
IWineD3DBaseTexture_GetTextureDimensions(device->stateBlock->textures[i]) == GL_TEXTURE_RECTANGLE_ARB) {
shader_addline(buffer, "uniform sampler2DRect %csampler%u;\n", prefix, i);
} else {
shader_addline(buffer, "uniform sampler2D %csampler%u;\n", prefix, i);
}
break;
case WINED3DSTT_CUBE:
shader_addline(buffer, "uniform samplerCube %csampler%u;\n", prefix, i);
break;
case WINED3DSTT_VOLUME:
shader_addline(buffer, "uniform sampler3D %csampler%u;\n", prefix, i);
break;
default:
shader_addline(buffer, "uniform unsupported_sampler %csampler%u;\n", prefix, i);
FIXME("Unrecognized sampler type: %#x\n", stype);
break;
}
}
}
/* Declare address variables */
for (i = 0; i < This->baseShader.limits.address; i++) {
if (reg_maps->address[i])
shader_addline(buffer, "ivec4 A%d;\n", i);
}
/* Declare texture coordinate temporaries and initialize them */
for (i = 0; i < This->baseShader.limits.texcoord; i++) {
if (reg_maps->texcoord[i])
shader_addline(buffer, "vec4 T%u = gl_TexCoord[%u];\n", i, i);
}
/* Declare input register varyings. Only pixel shader, vertex shaders have that declared in the
* helper function shader that is linked in at link time
*/
if(pshader && This->baseShader.hex_version >= WINED3DPS_VERSION(3, 0)) {
if(use_vs(device)) {
shader_addline(buffer, "varying vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
} else {
/* TODO: Write a replacement shader for the fixed function vertex pipeline, so this isn't needed.
* For fixed function vertex processing + 3.0 pixel shader we need a separate function in the
* pixel shader that reads the fixed function color into the packed input registers.
*/
shader_addline(buffer, "vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
}
}
/* Declare output register temporaries */
if(This->baseShader.limits.packed_output) {
shader_addline(buffer, "vec4 OUT[%u];\n", This->baseShader.limits.packed_output);
}
/* Declare temporary variables */
for(i = 0; i < This->baseShader.limits.temporary; i++) {
if (reg_maps->temporary[i])
shader_addline(buffer, "vec4 R%u;\n", i);
}
/* Declare attributes */
for (i = 0; i < This->baseShader.limits.attributes; i++) {
if (reg_maps->attributes[i])
shader_addline(buffer, "attribute vec4 attrib%i;\n", i);
}
/* Declare loop registers aLx */
for (i = 0; i < reg_maps->loop_depth; i++) {
shader_addline(buffer, "int aL%u;\n", i);
shader_addline(buffer, "int tmpInt%u;\n", i);
}
/* Temporary variables for matrix operations */
shader_addline(buffer, "vec4 tmp0;\n");
shader_addline(buffer, "vec4 tmp1;\n");
/* Local constants use a different name so they can be loaded once at shader link time
* They can't be hardcoded into the shader text via LC = {x, y, z, w}; because the
* float -> string conversion can cause precision loss.
*/
if(!This->baseShader.load_local_constsF) {
LIST_FOR_EACH_ENTRY(lconst, &This->baseShader.constantsF, local_constant, entry) {
shader_addline(buffer, "uniform vec4 %cLC%u;\n", prefix, lconst->idx);
}
}
/* Start the main program */
shader_addline(buffer, "void main() {\n");
if(pshader && reg_maps->vpos) {
/* DirectX apps expect integer values, while OpenGL drivers add approximately 0.5. This causes
* off-by-one problems as spotted by the vPos d3d9 visual test. Unfortunately the ATI cards do
* not add exactly 0.5, but rather something like 0.49999999 or 0.50000001, which still causes
* precision troubles when we just substract 0.5.
*
* To deal with that just floor() the position. This will eliminate the fraction on all cards.
*
* TODO: Test how that behaves with multisampling once we can enable multisampling in winex11.
*
* An advantage of floor is that it works even if the driver doesn't add 1/2. It is somewhat
* questionable if 1.5, 2.5, ... are the proper values to return in gl_FragCoord, even though
* coordinates specify the pixel centers instead of the pixel corners. This code will behave
* correctly on drivers that returns integer values.
*/
shader_addline(buffer, "vpos = floor(vec4(0, ycorrection[0], 0, 0) + gl_FragCoord * vec4(1, ycorrection[1], 1, 1));\n");
}
}
/*****************************************************************************
* Functions to generate GLSL strings from DirectX Shader bytecode begin here.
*
* For more information, see http://wiki.winehq.org/DirectX-Shaders
****************************************************************************/
/* Prototypes */
static void shader_glsl_add_src_param(SHADER_OPCODE_ARG* arg, const DWORD param,
const DWORD addr_token, DWORD mask, glsl_src_param_t *src_param);
/** Used for opcode modifiers - They multiply the result by the specified amount */
static const char * const shift_glsl_tab[] = {
"", /* 0 (none) */
"2.0 * ", /* 1 (x2) */
"4.0 * ", /* 2 (x4) */
"8.0 * ", /* 3 (x8) */
"16.0 * ", /* 4 (x16) */
"32.0 * ", /* 5 (x32) */
"", /* 6 (x64) */
"", /* 7 (x128) */
"", /* 8 (d256) */
"", /* 9 (d128) */
"", /* 10 (d64) */
"", /* 11 (d32) */
"0.0625 * ", /* 12 (d16) */
"0.125 * ", /* 13 (d8) */
"0.25 * ", /* 14 (d4) */
"0.5 * " /* 15 (d2) */
};
/* Generate a GLSL parameter that does the input modifier computation and return the input register/mask to use */
static void shader_glsl_gen_modifier (
const DWORD instr,
const char *in_reg,
const char *in_regswizzle,
char *out_str) {
out_str[0] = 0;
if (instr == WINED3DSIO_TEXKILL)
return;
switch (instr & WINED3DSP_SRCMOD_MASK) {
case WINED3DSPSM_DZ: /* Need to handle this in the instructions itself (texld & texcrd). */
case WINED3DSPSM_DW:
case WINED3DSPSM_NONE:
sprintf(out_str, "%s%s", in_reg, in_regswizzle);
break;
case WINED3DSPSM_NEG:
sprintf(out_str, "-%s%s", in_reg, in_regswizzle);
break;
case WINED3DSPSM_NOT:
sprintf(out_str, "!%s%s", in_reg, in_regswizzle);
break;
case WINED3DSPSM_BIAS:
sprintf(out_str, "(%s%s - vec4(0.5)%s)", in_reg, in_regswizzle, in_regswizzle);
break;
case WINED3DSPSM_BIASNEG:
sprintf(out_str, "-(%s%s - vec4(0.5)%s)", in_reg, in_regswizzle, in_regswizzle);
break;
case WINED3DSPSM_SIGN:
sprintf(out_str, "(2.0 * (%s%s - 0.5))", in_reg, in_regswizzle);
break;
case WINED3DSPSM_SIGNNEG:
sprintf(out_str, "-(2.0 * (%s%s - 0.5))", in_reg, in_regswizzle);
break;
case WINED3DSPSM_COMP:
sprintf(out_str, "(1.0 - %s%s)", in_reg, in_regswizzle);
break;
case WINED3DSPSM_X2:
sprintf(out_str, "(2.0 * %s%s)", in_reg, in_regswizzle);
break;
case WINED3DSPSM_X2NEG:
sprintf(out_str, "-(2.0 * %s%s)", in_reg, in_regswizzle);
break;
case WINED3DSPSM_ABS:
sprintf(out_str, "abs(%s%s)", in_reg, in_regswizzle);
break;
case WINED3DSPSM_ABSNEG:
sprintf(out_str, "-abs(%s%s)", in_reg, in_regswizzle);
break;
default:
FIXME("Unhandled modifier %u\n", (instr & WINED3DSP_SRCMOD_MASK));
sprintf(out_str, "%s%s", in_reg, in_regswizzle);
}
}
/** Writes the GLSL variable name that corresponds to the register that the
* DX opcode parameter is trying to access */
static void shader_glsl_get_register_name(
const DWORD param,
const DWORD addr_token,
char* regstr,
BOOL* is_color,
SHADER_OPCODE_ARG* arg) {
/* oPos, oFog and oPts in D3D */
static const char * const hwrastout_reg_names[] = { "gl_Position", "gl_FogFragCoord", "gl_PointSize" };
DWORD reg = param & WINED3DSP_REGNUM_MASK;
DWORD regtype = shader_get_regtype(param);
IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) arg->shader;
IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
WineD3D_GL_Info* gl_info = &deviceImpl->adapter->gl_info;
char pshader = shader_is_pshader_version(This->baseShader.hex_version);
char tmpStr[150];
*is_color = FALSE;
switch (regtype) {
case WINED3DSPR_TEMP:
sprintf(tmpStr, "R%u", reg);
break;
case WINED3DSPR_INPUT:
if (pshader) {
/* Pixel shaders >= 3.0 */
if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 3) {
DWORD in_count = GL_LIMITS(glsl_varyings) / 4;
if (param & WINED3DSHADER_ADDRMODE_RELATIVE) {
glsl_src_param_t rel_param;
shader_glsl_add_src_param(arg, addr_token, 0, WINED3DSP_WRITEMASK_0, &rel_param);
/* Removing a + 0 would be an obvious optimization, but macos doesn't see the NOP
* operation there
*/
if(((IWineD3DPixelShaderImpl *) This)->input_reg_map[reg]) {
if (((IWineD3DPixelShaderImpl *)This)->declared_in_count > in_count) {
sprintf(tmpStr, "((%s + %u) > %d ? (%s + %u) > %d ? gl_SecondaryColor : gl_Color : IN[%s + %u])",
rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg], in_count - 1,
rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg], in_count,
rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg]);
} else {
sprintf(tmpStr, "IN[%s + %u]", rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg]);
}
} else {
if (((IWineD3DPixelShaderImpl *)This)->declared_in_count > in_count) {
sprintf(tmpStr, "((%s) > %d ? (%s) > %d ? gl_SecondaryColor : gl_Color : IN[%s])",
rel_param.param_str, in_count - 1,
rel_param.param_str, in_count,
rel_param.param_str);
} else {
sprintf(tmpStr, "IN[%s]", rel_param.param_str);
}
}
} else {
DWORD idx = ((IWineD3DPixelShaderImpl *) This)->input_reg_map[reg];
if (idx == in_count) {
sprintf(tmpStr, "gl_Color");
} else if (idx == in_count + 1) {
sprintf(tmpStr, "gl_SecondaryColor");
} else {
sprintf(tmpStr, "IN[%u]", idx);
}
}
} else {
if (reg==0)
strcpy(tmpStr, "gl_Color");
else
strcpy(tmpStr, "gl_SecondaryColor");
}
} else {
if (vshader_input_is_color((IWineD3DVertexShader*) This, reg))
*is_color = TRUE;
sprintf(tmpStr, "attrib%u", reg);
}
break;
case WINED3DSPR_CONST:
{
const char prefix = pshader? 'P':'V';
/* Relative addressing */
if (param & WINED3DSHADER_ADDRMODE_RELATIVE) {
/* Relative addressing on shaders 2.0+ have a relative address token,
* prior to that, it was hard-coded as "A0.x" because there's only 1 register */
if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 2) {
glsl_src_param_t rel_param;
shader_glsl_add_src_param(arg, addr_token, 0, WINED3DSP_WRITEMASK_0, &rel_param);
if(reg) {
sprintf(tmpStr, "%cC[%s + %u]", prefix, rel_param.param_str, reg);
} else {
sprintf(tmpStr, "%cC[%s]", prefix, rel_param.param_str);
}
} else {
if(reg) {
sprintf(tmpStr, "%cC[A0.x + %u]", prefix, reg);
} else {
sprintf(tmpStr, "%cC[A0.x]", prefix);
}
}
} else {
if(shader_constant_is_local(This, reg)) {
sprintf(tmpStr, "%cLC%u", prefix, reg);
} else {
sprintf(tmpStr, "%cC[%u]", prefix, reg);
}
}
break;
}
case WINED3DSPR_CONSTINT:
if (pshader)
sprintf(tmpStr, "PI[%u]", reg);
else
sprintf(tmpStr, "VI[%u]", reg);
break;
case WINED3DSPR_CONSTBOOL:
if (pshader)
sprintf(tmpStr, "PB[%u]", reg);
else
sprintf(tmpStr, "VB[%u]", reg);
break;
case WINED3DSPR_TEXTURE: /* case WINED3DSPR_ADDR: */
if (pshader) {
sprintf(tmpStr, "T%u", reg);
} else {
sprintf(tmpStr, "A%u", reg);
}
break;
case WINED3DSPR_LOOP:
sprintf(tmpStr, "aL%u", This->baseShader.cur_loop_regno - 1);
break;
case WINED3DSPR_SAMPLER:
if (pshader)
sprintf(tmpStr, "Psampler%u", reg);
else
sprintf(tmpStr, "Vsampler%u", reg);
break;
case WINED3DSPR_COLOROUT:
if (reg >= GL_LIMITS(buffers)) {
WARN("Write to render target %u, only %d supported\n", reg, 4);
}
if (GL_SUPPORT(ARB_DRAW_BUFFERS)) {
sprintf(tmpStr, "gl_FragData[%u]", reg);
} else { /* On older cards with GLSL support like the GeforceFX there's only one buffer. */
sprintf(tmpStr, "gl_FragColor");
}
break;
case WINED3DSPR_RASTOUT:
sprintf(tmpStr, "%s", hwrastout_reg_names[reg]);
break;
case WINED3DSPR_DEPTHOUT:
sprintf(tmpStr, "gl_FragDepth");
break;
case WINED3DSPR_ATTROUT:
if (reg == 0) {
sprintf(tmpStr, "gl_FrontColor");
} else {
sprintf(tmpStr, "gl_FrontSecondaryColor");
}
break;
case WINED3DSPR_TEXCRDOUT:
/* Vertex shaders >= 3.0: WINED3DSPR_OUTPUT */
if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 3)
sprintf(tmpStr, "OUT[%u]", reg);
else
sprintf(tmpStr, "gl_TexCoord[%u]", reg);
break;
case WINED3DSPR_MISCTYPE:
if (reg == 0) {
/* vPos */
sprintf(tmpStr, "vpos");
} else if (reg == 1){
/* Note that gl_FrontFacing is a bool, while vFace is
* a float for which the sign determines front/back
*/
sprintf(tmpStr, "(gl_FrontFacing ? 1.0 : -1.0)");
} else {
FIXME("Unhandled misctype register %d\n", reg);
sprintf(tmpStr, "unrecognized_register");
}
break;
default:
FIXME("Unhandled register name Type(%d)\n", regtype);
sprintf(tmpStr, "unrecognized_register");
break;
}
strcat(regstr, tmpStr);
}
/* Get the GLSL write mask for the destination register */
static DWORD shader_glsl_get_write_mask(const DWORD param, char *write_mask) {
char *ptr = write_mask;
DWORD mask = param & WINED3DSP_WRITEMASK_ALL;
if (shader_is_scalar(param)) {
mask = WINED3DSP_WRITEMASK_0;
} else {
*ptr++ = '.';
if (param & WINED3DSP_WRITEMASK_0) *ptr++ = 'x';
if (param & WINED3DSP_WRITEMASK_1) *ptr++ = 'y';
if (param & WINED3DSP_WRITEMASK_2) *ptr++ = 'z';
if (param & WINED3DSP_WRITEMASK_3) *ptr++ = 'w';
}
*ptr = '\0';
return mask;
}
static unsigned int shader_glsl_get_write_mask_size(DWORD write_mask) {
unsigned int size = 0;
if (write_mask & WINED3DSP_WRITEMASK_0) ++size;
if (write_mask & WINED3DSP_WRITEMASK_1) ++size;
if (write_mask & WINED3DSP_WRITEMASK_2) ++size;
if (write_mask & WINED3DSP_WRITEMASK_3) ++size;
return size;
}
static void shader_glsl_get_swizzle(const DWORD param, BOOL fixup, DWORD mask, char *swizzle_str) {
/* For registers of type WINED3DDECLTYPE_D3DCOLOR, data is stored as "bgra",
* but addressed as "rgba". To fix this we need to swap the register's x
* and z components. */
DWORD swizzle = (param & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
const char *swizzle_chars = fixup ? "zyxw" : "xyzw";
char *ptr = swizzle_str;
if (!shader_is_scalar(param)) {
*ptr++ = '.';
/* swizzle bits fields: wwzzyyxx */
if (mask & WINED3DSP_WRITEMASK_0) *ptr++ = swizzle_chars[swizzle & 0x03];
if (mask & WINED3DSP_WRITEMASK_1) *ptr++ = swizzle_chars[(swizzle >> 2) & 0x03];
if (mask & WINED3DSP_WRITEMASK_2) *ptr++ = swizzle_chars[(swizzle >> 4) & 0x03];
if (mask & WINED3DSP_WRITEMASK_3) *ptr++ = swizzle_chars[(swizzle >> 6) & 0x03];
}
*ptr = '\0';
}
/* From a given parameter token, generate the corresponding GLSL string.
* Also, return the actual register name and swizzle in case the
* caller needs this information as well. */
static void shader_glsl_add_src_param(SHADER_OPCODE_ARG* arg, const DWORD param,
const DWORD addr_token, DWORD mask, glsl_src_param_t *src_param) {
BOOL is_color = FALSE;
char swizzle_str[6];
src_param->reg_name[0] = '\0';
src_param->param_str[0] = '\0';
swizzle_str[0] = '\0';
shader_glsl_get_register_name(param, addr_token, src_param->reg_name, &is_color, arg);
shader_glsl_get_swizzle(param, is_color, mask, swizzle_str);
shader_glsl_gen_modifier(param, src_param->reg_name, swizzle_str, src_param->param_str);
}
/* From a given parameter token, generate the corresponding GLSL string.
* Also, return the actual register name and swizzle in case the
* caller needs this information as well. */
static DWORD shader_glsl_add_dst_param(SHADER_OPCODE_ARG* arg, const DWORD param,
const DWORD addr_token, glsl_dst_param_t *dst_param) {
BOOL is_color = FALSE;
dst_param->mask_str[0] = '\0';
dst_param->reg_name[0] = '\0';
shader_glsl_get_register_name(param, addr_token, dst_param->reg_name, &is_color, arg);
return shader_glsl_get_write_mask(param, dst_param->mask_str);
}
/* Append the destination part of the instruction to the buffer, return the effective write mask */
static DWORD shader_glsl_append_dst_ext(SHADER_BUFFER *buffer, SHADER_OPCODE_ARG *arg, const DWORD param) {
glsl_dst_param_t dst_param;
DWORD mask;
int shift;
mask = shader_glsl_add_dst_param(arg, param, arg->dst_addr, &dst_param);
if(mask) {
shift = (param & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
shader_addline(buffer, "%s%s = %s(", dst_param.reg_name, dst_param.mask_str, shift_glsl_tab[shift]);
}
return mask;
}
/* Append the destination part of the instruction to the buffer, return the effective write mask */
static DWORD shader_glsl_append_dst(SHADER_BUFFER *buffer, SHADER_OPCODE_ARG *arg) {
return shader_glsl_append_dst_ext(buffer, arg, arg->dst);
}
/** Process GLSL instruction modifiers */
void shader_glsl_add_instruction_modifiers(SHADER_OPCODE_ARG* arg) {
DWORD mask = arg->dst & WINED3DSP_DSTMOD_MASK;
if (arg->opcode->dst_token && mask != 0) {
glsl_dst_param_t dst_param;
shader_glsl_add_dst_param(arg, arg->dst, 0, &dst_param);
if (mask & WINED3DSPDM_SATURATE) {
/* _SAT means to clamp the value of the register to between 0 and 1 */
shader_addline(arg->buffer, "%s%s = clamp(%s%s, 0.0, 1.0);\n", dst_param.reg_name,
dst_param.mask_str, dst_param.reg_name, dst_param.mask_str);
}
if (mask & WINED3DSPDM_MSAMPCENTROID) {
FIXME("_centroid modifier not handled\n");
}
if (mask & WINED3DSPDM_PARTIALPRECISION) {
/* MSDN says this modifier can be safely ignored, so that's what we'll do. */
}
}
}
static inline const char* shader_get_comp_op(
const DWORD opcode) {
DWORD op = (opcode & INST_CONTROLS_MASK) >> INST_CONTROLS_SHIFT;
switch (op) {
case COMPARISON_GT: return ">";
case COMPARISON_EQ: return "==";
case COMPARISON_GE: return ">=";
case COMPARISON_LT: return "<";
case COMPARISON_NE: return "!=";
case COMPARISON_LE: return "<=";
default:
FIXME("Unrecognized comparison value: %u\n", op);
return "(\?\?)";
}
}
static void shader_glsl_get_sample_function(DWORD sampler_type, BOOL projected, BOOL texrect, glsl_sample_function_t *sample_function) {
/* Note that there's no such thing as a projected cube texture. */
switch(sampler_type) {
case WINED3DSTT_1D:
sample_function->name = projected ? "texture1DProj" : "texture1D";
sample_function->coord_mask = WINED3DSP_WRITEMASK_0;
break;
case WINED3DSTT_2D:
if(texrect) {
sample_function->name = projected ? "texture2DRectProj" : "texture2DRect";
} else {
sample_function->name = projected ? "texture2DProj" : "texture2D";
}
sample_function->coord_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1;
break;
case WINED3DSTT_CUBE:
sample_function->name = "textureCube";
sample_function->coord_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
break;
case WINED3DSTT_VOLUME:
sample_function->name = projected ? "texture3DProj" : "texture3D";
sample_function->coord_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
break;
default:
sample_function->name = "";
sample_function->coord_mask = 0;
FIXME("Unrecognized sampler type: %#x;\n", sampler_type);
break;
}
}
static void shader_glsl_color_correction(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl* shader = (IWineD3DBaseShaderImpl*) arg->shader;
IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) shader->baseShader.device;
WineD3D_GL_Info *gl_info = &deviceImpl->adapter->gl_info;
glsl_dst_param_t dst_param;
glsl_dst_param_t dst_param2;
WINED3DFORMAT fmt;
WINED3DFORMAT conversion_group;
IWineD3DBaseTextureImpl *texture;
DWORD mask, mask_size;
UINT i;
BOOL recorded = FALSE;
DWORD sampler_idx;
DWORD hex_version = shader->baseShader.hex_version;
switch(arg->opcode->opcode) {
case WINED3DSIO_TEX:
if (hex_version < WINED3DPS_VERSION(2,0)) {
sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
} else {
sampler_idx = arg->src[1] & WINED3DSP_REGNUM_MASK;
}
break;
case WINED3DSIO_TEXLDL:
FIXME("Add color fixup for vertex texture WINED3DSIO_TEXLDL\n");
return;
case WINED3DSIO_TEXDP3TEX:
case WINED3DSIO_TEXM3x3TEX:
case WINED3DSIO_TEXM3x3SPEC:
case WINED3DSIO_TEXM3x3VSPEC:
case WINED3DSIO_TEXBEM:
case WINED3DSIO_TEXREG2AR:
case WINED3DSIO_TEXREG2GB:
case WINED3DSIO_TEXREG2RGB:
sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
break;
default:
/* Not a texture sampling instruction, nothing to do */
return;
};
texture = (IWineD3DBaseTextureImpl *) deviceImpl->stateBlock->textures[sampler_idx];
if(texture) {
fmt = texture->resource.format;
conversion_group = texture->baseTexture.shader_conversion_group;
} else {
fmt = WINED3DFMT_UNKNOWN;
conversion_group = WINED3DFMT_UNKNOWN;
}
/* before doing anything, record the sampler with the format in the format conversion list,
* but check if it's not there already
*/
for(i = 0; i < shader->baseShader.num_sampled_samplers; i++) {
if(shader->baseShader.sampled_samplers[i] == sampler_idx) {
recorded = TRUE;
break;
}
}
if(!recorded) {
shader->baseShader.sampled_samplers[shader->baseShader.num_sampled_samplers] = sampler_idx;
shader->baseShader.num_sampled_samplers++;
shader->baseShader.sampled_format[sampler_idx] = conversion_group;
}
switch(fmt) {
case WINED3DFMT_V8U8:
case WINED3DFMT_V16U16:
if(GL_SUPPORT(NV_TEXTURE_SHADER) && fmt == WINED3DFMT_V8U8) {
/* The 3rd channel returns 1.0 in d3d, but 0.0 in gl. Fix this while we're at it :-) */
mask = shader_glsl_add_dst_param(arg, arg->dst, WINED3DSP_WRITEMASK_2, &dst_param);
mask_size = shader_glsl_get_write_mask_size(mask);
if(mask_size >= 3) {
shader_addline(arg->buffer, "%s.%c = 1.0;\n", dst_param.reg_name, dst_param.mask_str[3]);
}
} else {
/* Correct the sign, but leave the blue as it is - it was loaded correctly already */
mask = shader_glsl_add_dst_param(arg, arg->dst,
WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1,
&dst_param);
mask_size = shader_glsl_get_write_mask_size(mask);
if(mask_size >= 2) {
shader_addline(arg->buffer, "%s.%c%c = %s.%c%c * 2.0 - 1.0;\n",
dst_param.reg_name, dst_param.mask_str[1], dst_param.mask_str[2],
dst_param.reg_name, dst_param.mask_str[1], dst_param.mask_str[2]);
} else if(mask_size == 1) {
shader_addline(arg->buffer, "%s.%c = %s.%c * 2.0 - 1.0;\n", dst_param.reg_name, dst_param.mask_str[1],
dst_param.reg_name, dst_param.mask_str[1]);
}
}
break;
case WINED3DFMT_X8L8V8U8:
if(!GL_SUPPORT(NV_TEXTURE_SHADER)) {
/* Red and blue are the signed channels, fix them up; Blue(=L) is correct already,
* and a(X) is always 1.0
*/
mask = shader_glsl_add_dst_param(arg, arg->dst, WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &dst_param);
mask_size = shader_glsl_get_write_mask_size(mask);
if(mask_size >= 2) {
shader_addline(arg->buffer, "%s.%c%c = %s.%c%c * 2.0 - 1.0;\n",
dst_param.reg_name, dst_param.mask_str[1], dst_param.mask_str[2],
dst_param.reg_name, dst_param.mask_str[1], dst_param.mask_str[2]);
} else if(mask_size == 1) {
shader_addline(arg->buffer, "%s.%c = %s.%c * 2.0 - 1.0;\n",
dst_param.reg_name, dst_param.mask_str[1],
dst_param.reg_name, dst_param.mask_str[1]);
}
}
break;
case WINED3DFMT_L6V5U5:
if(!GL_SUPPORT(NV_TEXTURE_SHADER)) {
mask = shader_glsl_add_dst_param(arg, arg->dst, WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &dst_param);
mask_size = shader_glsl_get_write_mask_size(mask);
shader_glsl_add_dst_param(arg, arg->dst, WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_2, &dst_param2);
if(mask_size >= 3) {
/* Swap y and z (U and L), and do a sign conversion on x and the new y(V and U) */
shader_addline(arg->buffer, "tmp0.g = %s.%c;\n",
dst_param.reg_name, dst_param.mask_str[2]);
shader_addline(arg->buffer, "%s.%c%c = %s.%c%c * 2.0 - 1.0;\n",
dst_param.reg_name, dst_param.mask_str[2], dst_param.mask_str[1],
dst_param2.reg_name, dst_param.mask_str[1], dst_param.mask_str[3]);
shader_addline(arg->buffer, "%s.%c = tmp0.g;\n", dst_param.reg_name,
dst_param.mask_str[3]);
} else if(mask_size == 2) {
/* This is bad: We have VL, but we need VU */
FIXME("2 components sampled from a converted L6V5U5 texture\n");
} else {
shader_addline(arg->buffer, "%s.%c = %s.%c * 2.0 - 1.0;\n",
dst_param.reg_name, dst_param.mask_str[1],
dst_param2.reg_name, dst_param.mask_str[1]);
}
}
break;
case WINED3DFMT_Q8W8V8U8:
if(!GL_SUPPORT(NV_TEXTURE_SHADER)) {
/* Correct the sign in all channels. The writemask just applies as-is, no
* need for checking the mask size
*/
shader_glsl_add_dst_param(arg, arg->dst,
WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 |
WINED3DSP_WRITEMASK_2 | WINED3DSP_WRITEMASK_3,
&dst_param);
shader_addline(arg->buffer, "%s%s = %s%s * 2.0 - 1.0;\n", dst_param.reg_name, dst_param.mask_str,
dst_param.reg_name, dst_param.mask_str);
}
break;
case WINED3DFMT_ATI2N:
/* GL_ATI_texture_compression_3dc returns the two channels as luminance-alpha,
* which means the first one is replicated across .rgb, and the 2nd one is in
* .a. We need the 2nd in .g
*
* GL_EXT_texture_compression_rgtc returns the values in .rg, however, they
* are swapped compared to d3d. So swap red and green.
*/
mask = shader_glsl_add_dst_param(arg, arg->dst, WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &dst_param);
mask_size = shader_glsl_get_write_mask_size(mask);
if(GL_SUPPORT(EXT_TEXTURE_COMPRESSION_RGTC)) {
if(mask_size >= 2) {
shader_addline(arg->buffer, "%s.%c%c = %s.%c%c;\n",
dst_param.reg_name, dst_param.mask_str[1],
dst_param.mask_str[2],
dst_param.reg_name, dst_param.mask_str[2],
dst_param.mask_str[1]);
} else {
FIXME("%u components sampled from a converted ATI2N texture\n", mask_size);
}
} else {
if(mask_size == 4) {
/* Swap y and z (U and L), and do a sign conversion on x and the new y(V and U) */
shader_addline(arg->buffer, "%s.%c = %s.%c;\n",
dst_param.reg_name, dst_param.mask_str[2],
dst_param.reg_name, dst_param.mask_str[4]);
} else if(mask_size == 1) {
/* Nothing to do */
} else {
FIXME("%u components sampled from a converted ATI2N texture\n", mask_size);
/* This is bad: We have .r[gb], but we need .ra */
}
}
break;
/* stupid compiler */
default:
break;
}
}
/*****************************************************************************
*
* Begin processing individual instruction opcodes
*
****************************************************************************/
/* Generate GLSL arithmetic functions (dst = src1 + src2) */
static void shader_glsl_arith(SHADER_OPCODE_ARG* arg) {
CONST SHADER_OPCODE* curOpcode = arg->opcode;
SHADER_BUFFER* buffer = arg->buffer;
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
DWORD write_mask;
char op;
/* Determine the GLSL operator to use based on the opcode */
switch (curOpcode->opcode) {
case WINED3DSIO_MUL: op = '*'; break;
case WINED3DSIO_ADD: op = '+'; break;
case WINED3DSIO_SUB: op = '-'; break;
default:
op = ' ';
FIXME("Opcode %s not yet handled in GLSL\n", curOpcode->name);
break;
}
write_mask = shader_glsl_append_dst(buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], write_mask, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
shader_addline(buffer, "%s %c %s);\n", src0_param.param_str, op, src1_param.param_str);
}
/* Process the WINED3DSIO_MOV opcode using GLSL (dst = src) */
static void shader_glsl_mov(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl* shader = (IWineD3DBaseShaderImpl*) arg->shader;
SHADER_BUFFER* buffer = arg->buffer;
glsl_src_param_t src0_param;
DWORD write_mask;
write_mask = shader_glsl_append_dst(buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], write_mask, &src0_param);
/* In vs_1_1 WINED3DSIO_MOV can write to the address register. In later
* shader versions WINED3DSIO_MOVA is used for this. */
if ((WINED3DSHADER_VERSION_MAJOR(shader->baseShader.hex_version) == 1 &&
!shader_is_pshader_version(shader->baseShader.hex_version) &&
shader_get_regtype(arg->dst) == WINED3DSPR_ADDR)) {
/* This is a simple floor() */
unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
if (mask_size > 1) {
shader_addline(buffer, "ivec%d(floor(%s)));\n", mask_size, src0_param.param_str);
} else {
shader_addline(buffer, "int(floor(%s)));\n", src0_param.param_str);
}
} else if(arg->opcode->opcode == WINED3DSIO_MOVA) {
/* We need to *round* to the nearest int here. */
unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
if (mask_size > 1) {
shader_addline(buffer, "ivec%d(floor(abs(%s) + vec%d(0.5)) * sign(%s)));\n", mask_size, src0_param.param_str, mask_size, src0_param.param_str);
} else {
shader_addline(buffer, "int(floor(abs(%s) + 0.5) * sign(%s)));\n", src0_param.param_str, src0_param.param_str);
}
} else {
shader_addline(buffer, "%s);\n", src0_param.param_str);
}
}
/* Process the dot product operators DP3 and DP4 in GLSL (dst = dot(src0, src1)) */
static void shader_glsl_dot(SHADER_OPCODE_ARG* arg) {
CONST SHADER_OPCODE* curOpcode = arg->opcode;
SHADER_BUFFER* buffer = arg->buffer;
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
DWORD dst_write_mask, src_write_mask;
unsigned int dst_size = 0;
dst_write_mask = shader_glsl_append_dst(buffer, arg);
dst_size = shader_glsl_get_write_mask_size(dst_write_mask);
/* dp3 works on vec3, dp4 on vec4 */
if (curOpcode->opcode == WINED3DSIO_DP4) {
src_write_mask = WINED3DSP_WRITEMASK_ALL;
} else {
src_write_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
}
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_write_mask, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], src_write_mask, &src1_param);
if (dst_size > 1) {
shader_addline(buffer, "vec%d(dot(%s, %s)));\n", dst_size, src0_param.param_str, src1_param.param_str);
} else {
shader_addline(buffer, "dot(%s, %s));\n", src0_param.param_str, src1_param.param_str);
}
}
/* Note that this instruction has some restrictions. The destination write mask
* can't contain the w component, and the source swizzles have to be .xyzw */
static void shader_glsl_cross(SHADER_OPCODE_ARG *arg) {
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
char dst_mask[6];
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], src_mask, &src1_param);
shader_addline(arg->buffer, "cross(%s, %s)%s);\n", src0_param.param_str, src1_param.param_str, dst_mask);
}
/* Process the WINED3DSIO_POW instruction in GLSL (dst = |src0|^src1)
* Src0 and src1 are scalars. Note that D3D uses the absolute of src0, while
* GLSL uses the value as-is. */
static void shader_glsl_pow(SHADER_OPCODE_ARG *arg) {
SHADER_BUFFER *buffer = arg->buffer;
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
DWORD dst_write_mask;
unsigned int dst_size;
dst_write_mask = shader_glsl_append_dst(buffer, arg);
dst_size = shader_glsl_get_write_mask_size(dst_write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
if (dst_size > 1) {
shader_addline(buffer, "vec%d(pow(abs(%s), %s)));\n", dst_size, src0_param.param_str, src1_param.param_str);
} else {
shader_addline(buffer, "pow(abs(%s), %s));\n", src0_param.param_str, src1_param.param_str);
}
}
/* Process the WINED3DSIO_LOG instruction in GLSL (dst = log2(|src0|))
* Src0 is a scalar. Note that D3D uses the absolute of src0, while
* GLSL uses the value as-is. */
static void shader_glsl_log(SHADER_OPCODE_ARG *arg) {
SHADER_BUFFER *buffer = arg->buffer;
glsl_src_param_t src0_param;
DWORD dst_write_mask;
unsigned int dst_size;
dst_write_mask = shader_glsl_append_dst(buffer, arg);
dst_size = shader_glsl_get_write_mask_size(dst_write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
if (dst_size > 1) {
shader_addline(buffer, "vec%d(log2(abs(%s))));\n", dst_size, src0_param.param_str);
} else {
shader_addline(buffer, "log2(abs(%s)));\n", src0_param.param_str);
}
}
/* Map the opcode 1-to-1 to the GL code (arg->dst = instruction(src0, src1, ...) */
static void shader_glsl_map2gl(SHADER_OPCODE_ARG* arg) {
CONST SHADER_OPCODE* curOpcode = arg->opcode;
SHADER_BUFFER* buffer = arg->buffer;
glsl_src_param_t src_param;
const char *instruction;
char arguments[256];
DWORD write_mask;
unsigned i;
/* Determine the GLSL function to use based on the opcode */
/* TODO: Possibly make this a table for faster lookups */
switch (curOpcode->opcode) {
case WINED3DSIO_MIN: instruction = "min"; break;
case WINED3DSIO_MAX: instruction = "max"; break;
case WINED3DSIO_ABS: instruction = "abs"; break;
case WINED3DSIO_FRC: instruction = "fract"; break;
case WINED3DSIO_NRM: instruction = "normalize"; break;
case WINED3DSIO_EXP: instruction = "exp2"; break;
case WINED3DSIO_SGN: instruction = "sign"; break;
case WINED3DSIO_DSX: instruction = "dFdx"; break;
case WINED3DSIO_DSY: instruction = "ycorrection.y * dFdy"; break;
default: instruction = "";
FIXME("Opcode %s not yet handled in GLSL\n", curOpcode->name);
break;
}
write_mask = shader_glsl_append_dst(buffer, arg);
arguments[0] = '\0';
if (curOpcode->num_params > 0) {
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], write_mask, &src_param);
strcat(arguments, src_param.param_str);
for (i = 2; i < curOpcode->num_params; ++i) {
strcat(arguments, ", ");
shader_glsl_add_src_param(arg, arg->src[i-1], arg->src_addr[i-1], write_mask, &src_param);
strcat(arguments, src_param.param_str);
}
}
shader_addline(buffer, "%s(%s));\n", instruction, arguments);
}
/** Process the WINED3DSIO_EXPP instruction in GLSL:
* For shader model 1.x, do the following (and honor the writemask, so use a temporary variable):
* dst.x = 2^(floor(src))
* dst.y = src - floor(src)
* dst.z = 2^src (partial precision is allowed, but optional)
* dst.w = 1.0;
* For 2.0 shaders, just do this (honoring writemask and swizzle):
* dst = 2^src; (partial precision is allowed, but optional)
*/
static void shader_glsl_expp(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl *shader = (IWineD3DBaseShaderImpl *)arg->shader;
glsl_src_param_t src_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src_param);
if (shader->baseShader.hex_version < WINED3DPS_VERSION(2,0)) {
char dst_mask[6];
shader_addline(arg->buffer, "tmp0.x = exp2(floor(%s));\n", src_param.param_str);
shader_addline(arg->buffer, "tmp0.y = %s - floor(%s);\n", src_param.param_str, src_param.param_str);
shader_addline(arg->buffer, "tmp0.z = exp2(%s);\n", src_param.param_str);
shader_addline(arg->buffer, "tmp0.w = 1.0;\n");
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_addline(arg->buffer, "tmp0%s);\n", dst_mask);
} else {
DWORD write_mask;
unsigned int mask_size;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
mask_size = shader_glsl_get_write_mask_size(write_mask);
if (mask_size > 1) {
shader_addline(arg->buffer, "vec%d(exp2(%s)));\n", mask_size, src_param.param_str);
} else {
shader_addline(arg->buffer, "exp2(%s));\n", src_param.param_str);
}
}
}
/** Process the RCP (reciprocal or inverse) opcode in GLSL (dst = 1 / src) */
static void shader_glsl_rcp(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src_param;
DWORD write_mask;
unsigned int mask_size;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
mask_size = shader_glsl_get_write_mask_size(write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_3, &src_param);
if (mask_size > 1) {
shader_addline(arg->buffer, "vec%d(1.0 / %s));\n", mask_size, src_param.param_str);
} else {
shader_addline(arg->buffer, "1.0 / %s);\n", src_param.param_str);
}
}
static void shader_glsl_rsq(SHADER_OPCODE_ARG* arg) {
SHADER_BUFFER* buffer = arg->buffer;
glsl_src_param_t src_param;
DWORD write_mask;
unsigned int mask_size;
write_mask = shader_glsl_append_dst(buffer, arg);
mask_size = shader_glsl_get_write_mask_size(write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_3, &src_param);
if (mask_size > 1) {
shader_addline(buffer, "vec%d(inversesqrt(%s)));\n", mask_size, src_param.param_str);
} else {
shader_addline(buffer, "inversesqrt(%s));\n", src_param.param_str);
}
}
/** Process signed comparison opcodes in GLSL. */
static void shader_glsl_compare(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
DWORD write_mask;
unsigned int mask_size;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
mask_size = shader_glsl_get_write_mask_size(write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], write_mask, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
if (mask_size > 1) {
const char *compare;
switch(arg->opcode->opcode) {
case WINED3DSIO_SLT: compare = "lessThan"; break;
case WINED3DSIO_SGE: compare = "greaterThanEqual"; break;
default: compare = "";
FIXME("Can't handle opcode %s\n", arg->opcode->name);
}
shader_addline(arg->buffer, "vec%d(%s(%s, %s)));\n", mask_size, compare,
src0_param.param_str, src1_param.param_str);
} else {
switch(arg->opcode->opcode) {
case WINED3DSIO_SLT:
/* Step(src0, src1) is not suitable here because if src0 == src1 SLT is supposed,
* to return 0.0 but step returns 1.0 because step is not < x
* An alternative is a bvec compare padded with an unused second component.
* step(src1 * -1.0, src0 * -1.0) is not an option because it suffers from the same
* issue. Playing with not() is not possible either because not() does not accept
* a scalar.
*/
shader_addline(arg->buffer, "(%s < %s) ? 1.0 : 0.0);\n", src0_param.param_str, src1_param.param_str);
break;
case WINED3DSIO_SGE:
/* Here we can use the step() function and safe a conditional */
shader_addline(arg->buffer, "step(%s, %s));\n", src1_param.param_str, src0_param.param_str);
break;
default:
FIXME("Can't handle opcode %s\n", arg->opcode->name);
}
}
}
/** Process CMP instruction in GLSL (dst = src0 >= 0.0 ? src1 : src2), per channel */
static void shader_glsl_cmp(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
glsl_src_param_t src2_param;
DWORD write_mask, cmp_channel = 0;
unsigned int i, j;
char mask_char[6];
BOOL temp_destination = FALSE;
if(shader_is_scalar(arg->src[0])) {
write_mask = shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_ALL, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
shader_glsl_add_src_param(arg, arg->src[2], arg->src_addr[2], write_mask, &src2_param);
shader_addline(arg->buffer, "%s >= 0.0 ? %s : %s);\n",
src0_param.param_str, src1_param.param_str, src2_param.param_str);
} else {
DWORD src0reg = arg->src[0] & WINED3DSP_REGNUM_MASK;
DWORD src1reg = arg->src[1] & WINED3DSP_REGNUM_MASK;
DWORD src2reg = arg->src[2] & WINED3DSP_REGNUM_MASK;
DWORD src0regtype = shader_get_regtype(arg->src[0]);
DWORD src1regtype = shader_get_regtype(arg->src[1]);
DWORD src2regtype = shader_get_regtype(arg->src[2]);
DWORD dstreg = arg->dst & WINED3DSP_REGNUM_MASK;
DWORD dstregtype = shader_get_regtype(arg->dst);
/* Cycle through all source0 channels */
for (i=0; i<4; i++) {
write_mask = 0;
/* Find the destination channels which use the current source0 channel */
for (j=0; j<4; j++) {
if ( ((arg->src[0] >> (WINED3DSP_SWIZZLE_SHIFT + 2*j)) & 0x3) == i ) {
write_mask |= WINED3DSP_WRITEMASK_0 << j;
cmp_channel = WINED3DSP_WRITEMASK_0 << j;
}
}
/* Splitting the cmp instruction up in multiple lines imposes a problem:
* The first lines may overwrite source parameters of the following lines.
* Deal with that by using a temporary destination register if needed
*/
if((src0reg == dstreg && src0regtype == dstregtype) ||
(src1reg == dstreg && src1regtype == dstregtype) ||
(src2reg == dstreg && src2regtype == dstregtype)) {
write_mask = shader_glsl_get_write_mask(arg->dst & (~WINED3DSP_SWIZZLE_MASK | write_mask), mask_char);
if (!write_mask) continue;
shader_addline(arg->buffer, "tmp0%s = (", mask_char);
temp_destination = TRUE;
} else {
write_mask = shader_glsl_append_dst_ext(arg->buffer, arg, arg->dst & (~WINED3DSP_SWIZZLE_MASK | write_mask));
if (!write_mask) continue;
}
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], cmp_channel, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
shader_glsl_add_src_param(arg, arg->src[2], arg->src_addr[2], write_mask, &src2_param);
shader_addline(arg->buffer, "%s >= 0.0 ? %s : %s);\n",
src0_param.param_str, src1_param.param_str, src2_param.param_str);
}
if(temp_destination) {
shader_glsl_get_write_mask(arg->dst, mask_char);
shader_glsl_append_dst_ext(arg->buffer, arg, arg->dst);
shader_addline(arg->buffer, "tmp0%s);\n", mask_char);
}
}
}
/** Process the CND opcode in GLSL (dst = (src0 > 0.5) ? src1 : src2) */
/* For ps 1.1-1.3, only a single component of src0 is used. For ps 1.4
* the compare is done per component of src0. */
static void shader_glsl_cnd(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl* shader = (IWineD3DBaseShaderImpl*) arg->shader;
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
glsl_src_param_t src2_param;
DWORD write_mask, cmp_channel = 0;
unsigned int i, j;
if (shader->baseShader.hex_version < WINED3DPS_VERSION(1, 4)) {
write_mask = shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
shader_glsl_add_src_param(arg, arg->src[2], arg->src_addr[2], write_mask, &src2_param);
/* Fun: The D3DSI_COISSUE flag changes the semantic of the cnd instruction for < 1.4 shaders */
if(arg->opcode_token & WINED3DSI_COISSUE) {
shader_addline(arg->buffer, "%s /* COISSUE! */);\n", src1_param.param_str);
} else {
shader_addline(arg->buffer, "%s > 0.5 ? %s : %s);\n",
src0_param.param_str, src1_param.param_str, src2_param.param_str);
}
return;
}
/* Cycle through all source0 channels */
for (i=0; i<4; i++) {
write_mask = 0;
/* Find the destination channels which use the current source0 channel */
for (j=0; j<4; j++) {
if ( ((arg->src[0] >> (WINED3DSP_SWIZZLE_SHIFT + 2*j)) & 0x3) == i ) {
write_mask |= WINED3DSP_WRITEMASK_0 << j;
cmp_channel = WINED3DSP_WRITEMASK_0 << j;
}
}
write_mask = shader_glsl_append_dst_ext(arg->buffer, arg, arg->dst & (~WINED3DSP_SWIZZLE_MASK | write_mask));
if (!write_mask) continue;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], cmp_channel, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
shader_glsl_add_src_param(arg, arg->src[2], arg->src_addr[2], write_mask, &src2_param);
shader_addline(arg->buffer, "%s > 0.5 ? %s : %s);\n",
src0_param.param_str, src1_param.param_str, src2_param.param_str);
}
}
/** GLSL code generation for WINED3DSIO_MAD: Multiply the first 2 opcodes, then add the last */
static void shader_glsl_mad(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
glsl_src_param_t src2_param;
DWORD write_mask;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], write_mask, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
shader_glsl_add_src_param(arg, arg->src[2], arg->src_addr[2], write_mask, &src2_param);
shader_addline(arg->buffer, "(%s * %s) + %s);\n",
src0_param.param_str, src1_param.param_str, src2_param.param_str);
}
/** Handles transforming all WINED3DSIO_M?x? opcodes for
Vertex shaders to GLSL codes */
static void shader_glsl_mnxn(SHADER_OPCODE_ARG* arg) {
int i;
int nComponents = 0;
SHADER_OPCODE_ARG tmpArg;
memset(&tmpArg, 0, sizeof(SHADER_OPCODE_ARG));
/* Set constants for the temporary argument */
tmpArg.shader = arg->shader;
tmpArg.buffer = arg->buffer;
tmpArg.src[0] = arg->src[0];
tmpArg.src_addr[0] = arg->src_addr[0];
tmpArg.src_addr[1] = arg->src_addr[1];
tmpArg.reg_maps = arg->reg_maps;
switch(arg->opcode->opcode) {
case WINED3DSIO_M4x4:
nComponents = 4;
tmpArg.opcode = shader_get_opcode(arg->shader, WINED3DSIO_DP4);
break;
case WINED3DSIO_M4x3:
nComponents = 3;
tmpArg.opcode = shader_get_opcode(arg->shader, WINED3DSIO_DP4);
break;
case WINED3DSIO_M3x4:
nComponents = 4;
tmpArg.opcode = shader_get_opcode(arg->shader, WINED3DSIO_DP3);
break;
case WINED3DSIO_M3x3:
nComponents = 3;
tmpArg.opcode = shader_get_opcode(arg->shader, WINED3DSIO_DP3);
break;
case WINED3DSIO_M3x2:
nComponents = 2;
tmpArg.opcode = shader_get_opcode(arg->shader, WINED3DSIO_DP3);
break;
default:
break;
}
for (i = 0; i < nComponents; i++) {
tmpArg.dst = ((arg->dst) & ~WINED3DSP_WRITEMASK_ALL)|(WINED3DSP_WRITEMASK_0<<i);
tmpArg.src[1] = arg->src[1]+i;
shader_glsl_dot(&tmpArg);
}
}
/**
The LRP instruction performs a component-wise linear interpolation
between the second and third operands using the first operand as the
blend factor. Equation: (dst = src2 + src0 * (src1 - src2))
This is equivalent to mix(src2, src1, src0);
*/
static void shader_glsl_lrp(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
glsl_src_param_t src2_param;
DWORD write_mask;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], write_mask, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], write_mask, &src1_param);
shader_glsl_add_src_param(arg, arg->src[2], arg->src_addr[2], write_mask, &src2_param);
shader_addline(arg->buffer, "mix(%s, %s, %s));\n",
src2_param.param_str, src1_param.param_str, src0_param.param_str);
}
/** Process the WINED3DSIO_LIT instruction in GLSL:
* dst.x = dst.w = 1.0
* dst.y = (src0.x > 0) ? src0.x
* dst.z = (src0.x > 0) ? ((src0.y > 0) ? pow(src0.y, src.w) : 0) : 0
* where src.w is clamped at +- 128
*/
static void shader_glsl_lit(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
glsl_src_param_t src3_param;
char dst_mask[6];
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_1, &src1_param);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_3, &src3_param);
/* The sdk specifies the instruction like this
* dst.x = 1.0;
* if(src.x > 0.0) dst.y = src.x
* else dst.y = 0.0.
* if(src.x > 0.0 && src.y > 0.0) dst.z = pow(src.y, power);
* else dst.z = 0.0;
* dst.w = 1.0;
*
* Obviously that has quite a few conditionals in it which we don't like. So the first step is this:
* dst.x = 1.0 ... No further explanation needed
* dst.y = max(src.y, 0.0); ... If x < 0.0, use 0.0, otherwise x. Same as the conditional
* dst.z = x > 0.0 ? pow(max(y, 0.0), p) : 0; ... 0 ^ power is 0, and otherwise we use y anyway
* dst.w = 1.0. ... Nothing fancy.
*
* So we still have one conditional in there. So do this:
* dst.z = pow(max(0.0, src.y) * step(0.0, src.x), power);
*
* step(0.0, x) will return 1 if src.x > 0.0, and 0 otherwise. So if y is 0 we get pow(0.0 * 1.0, power),
* which sets dst.z to 0. If y > 0, but x = 0.0, we get pow(y * 0.0, power), which results in 0 too.
* if both x and y are > 0, we get pow(y * 1.0, power), as it is supposed to
*/
shader_addline(arg->buffer, "vec4(1.0, max(%s, 0.0), pow(max(0.0, %s) * step(0.0, %s), clamp(%s, -128.0, 128.0)), 1.0)%s);\n",
src0_param.param_str, src1_param.param_str, src0_param.param_str, src3_param.param_str, dst_mask);
}
/** Process the WINED3DSIO_DST instruction in GLSL:
* dst.x = 1.0
* dst.y = src0.x * src0.y
* dst.z = src0.z
* dst.w = src1.w
*/
static void shader_glsl_dst(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0y_param;
glsl_src_param_t src0z_param;
glsl_src_param_t src1y_param;
glsl_src_param_t src1w_param;
char dst_mask[6];
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_1, &src0y_param);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_2, &src0z_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_1, &src1y_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_3, &src1w_param);
shader_addline(arg->buffer, "vec4(1.0, %s * %s, %s, %s))%s;\n",
src0y_param.param_str, src1y_param.param_str, src0z_param.param_str, src1w_param.param_str, dst_mask);
}
/** Process the WINED3DSIO_SINCOS instruction in GLSL:
* VS 2.0 requires that specific cosine and sine constants be passed to this instruction so the hardware
* can handle it. But, these functions are built-in for GLSL, so we can just ignore the last 2 params.
*
* dst.x = cos(src0.?)
* dst.y = sin(src0.?)
* dst.z = dst.z
* dst.w = dst.w
*/
static void shader_glsl_sincos(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
DWORD write_mask;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
switch (write_mask) {
case WINED3DSP_WRITEMASK_0:
shader_addline(arg->buffer, "cos(%s));\n", src0_param.param_str);
break;
case WINED3DSP_WRITEMASK_1:
shader_addline(arg->buffer, "sin(%s));\n", src0_param.param_str);
break;
case (WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1):
shader_addline(arg->buffer, "vec2(cos(%s), sin(%s)));\n", src0_param.param_str, src0_param.param_str);
break;
default:
ERR("Write mask should be .x, .y or .xy\n");
break;
}
}
/** Process the WINED3DSIO_LOOP instruction in GLSL:
* Start a for() loop where src1.y is the initial value of aL,
* increment aL by src1.z for a total of src1.x iterations.
* Need to use a temporary variable for this operation.
*/
/* FIXME: I don't think nested loops will work correctly this way. */
static void shader_glsl_loop(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src1_param;
IWineD3DBaseShaderImpl* shader = (IWineD3DBaseShaderImpl*) arg->shader;
DWORD regtype = shader_get_regtype(arg->src[1]);
DWORD reg = arg->src[1] & WINED3DSP_REGNUM_MASK;
const DWORD *control_values = NULL;
local_constant *constant;
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_ALL, &src1_param);
/* Try to hardcode the loop control parameters if possible. Direct3D 9 class hardware doesn't support real
* varying indexing, but Microsoft designed this feature for Shader model 2.x+. If the loop control is
* known at compile time, the GLSL compiler can unroll the loop, and replace indirect addressing with direct
* addressing.
*/
if(regtype == WINED3DSPR_CONSTINT) {
LIST_FOR_EACH_ENTRY(constant, &shader->baseShader.constantsI, local_constant, entry) {
if(constant->idx == reg) {
control_values = constant->value;
break;
}
}
}
if(control_values) {
if(control_values[2] > 0) {
shader_addline(arg->buffer, "for (aL%u = %d; aL%u < (%d * %d + %d); aL%u += %d) {\n",
shader->baseShader.cur_loop_depth, control_values[1],
shader->baseShader.cur_loop_depth, control_values[0], control_values[2], control_values[1],
shader->baseShader.cur_loop_depth, control_values[2]);
} else if(control_values[2] == 0) {
shader_addline(arg->buffer, "for (aL%u = %d, tmpInt%u = 0; tmpInt%u < %d; tmpInt%u++) {\n",
shader->baseShader.cur_loop_depth, control_values[1], shader->baseShader.cur_loop_depth,
shader->baseShader.cur_loop_depth, control_values[0],
shader->baseShader.cur_loop_depth);
} else {
shader_addline(arg->buffer, "for (aL%u = %d; aL%u > (%d * %d + %d); aL%u += %d) {\n",
shader->baseShader.cur_loop_depth, control_values[1],
shader->baseShader.cur_loop_depth, control_values[0], control_values[2], control_values[1],
shader->baseShader.cur_loop_depth, control_values[2]);
}
} else {
shader_addline(arg->buffer, "for (tmpInt%u = 0, aL%u = %s.y; tmpInt%u < %s.x; tmpInt%u++, aL%u += %s.z) {\n",
shader->baseShader.cur_loop_depth, shader->baseShader.cur_loop_regno,
src1_param.reg_name, shader->baseShader.cur_loop_depth, src1_param.reg_name,
shader->baseShader.cur_loop_depth, shader->baseShader.cur_loop_regno, src1_param.reg_name);
}
shader->baseShader.cur_loop_depth++;
shader->baseShader.cur_loop_regno++;
}
static void shader_glsl_end(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl* shader = (IWineD3DBaseShaderImpl*) arg->shader;
shader_addline(arg->buffer, "}\n");
if(arg->opcode->opcode == WINED3DSIO_ENDLOOP) {
shader->baseShader.cur_loop_depth--;
shader->baseShader.cur_loop_regno--;
}
if(arg->opcode->opcode == WINED3DSIO_ENDREP) {
shader->baseShader.cur_loop_depth--;
}
}
static void shader_glsl_rep(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl* shader = (IWineD3DBaseShaderImpl*) arg->shader;
glsl_src_param_t src0_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
shader_addline(arg->buffer, "for (tmpInt%d = 0; tmpInt%d < %s; tmpInt%d++) {\n",
shader->baseShader.cur_loop_depth, shader->baseShader.cur_loop_depth,
src0_param.param_str, shader->baseShader.cur_loop_depth);
shader->baseShader.cur_loop_depth++;
}
static void shader_glsl_if(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
shader_addline(arg->buffer, "if (%s) {\n", src0_param.param_str);
}
static void shader_glsl_ifc(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
shader_addline(arg->buffer, "if (%s %s %s) {\n",
src0_param.param_str, shader_get_comp_op(arg->opcode_token), src1_param.param_str);
}
static void shader_glsl_else(SHADER_OPCODE_ARG* arg) {
shader_addline(arg->buffer, "} else {\n");
}
static void shader_glsl_break(SHADER_OPCODE_ARG* arg) {
shader_addline(arg->buffer, "break;\n");
}
/* FIXME: According to MSDN the compare is done per component. */
static void shader_glsl_breakc(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
shader_addline(arg->buffer, "if (%s %s %s) break;\n",
src0_param.param_str, shader_get_comp_op(arg->opcode_token), src1_param.param_str);
}
static void shader_glsl_label(SHADER_OPCODE_ARG* arg) {
DWORD snum = (arg->src[0]) & WINED3DSP_REGNUM_MASK;
shader_addline(arg->buffer, "}\n");
shader_addline(arg->buffer, "void subroutine%u () {\n", snum);
}
static void shader_glsl_call(SHADER_OPCODE_ARG* arg) {
DWORD snum = (arg->src[0]) & WINED3DSP_REGNUM_MASK;
shader_addline(arg->buffer, "subroutine%u();\n", snum);
}
static void shader_glsl_callnz(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src1_param;
DWORD snum = (arg->src[0]) & WINED3DSP_REGNUM_MASK;
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
shader_addline(arg->buffer, "if (%s) subroutine%u();\n", src1_param.param_str, snum);
}
/*********************************************
* Pixel Shader Specific Code begins here
********************************************/
static void pshader_glsl_tex(SHADER_OPCODE_ARG* arg) {
IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
DWORD hex_version = This->baseShader.hex_version;
char dst_swizzle[6];
glsl_sample_function_t sample_function;
DWORD sampler_type;
DWORD sampler_idx;
BOOL projected, texrect = FALSE;
DWORD mask = 0;
/* All versions have a destination register */
shader_glsl_append_dst(arg->buffer, arg);
/* 1.0-1.4: Use destination register as sampler source.
* 2.0+: Use provided sampler source. */
if (hex_version < WINED3DPS_VERSION(2,0)) {
sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
} else {
sampler_idx = arg->src[1] & WINED3DSP_REGNUM_MASK;
}
sampler_type = arg->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
if (hex_version < WINED3DPS_VERSION(1,4)) {
DWORD flags = deviceImpl->stateBlock->textureState[sampler_idx][WINED3DTSS_TEXTURETRANSFORMFLAGS];
/* Projected cube textures don't make a lot of sense, the resulting coordinates stay the same. */
if (flags & WINED3DTTFF_PROJECTED && sampler_type != WINED3DSTT_CUBE) {
projected = TRUE;
switch (flags & ~WINED3DTTFF_PROJECTED) {
case WINED3DTTFF_COUNT1: FIXME("WINED3DTTFF_PROJECTED with WINED3DTTFF_COUNT1?\n"); break;
case WINED3DTTFF_COUNT2: mask = WINED3DSP_WRITEMASK_1; break;
case WINED3DTTFF_COUNT3: mask = WINED3DSP_WRITEMASK_2; break;
case WINED3DTTFF_COUNT4:
case WINED3DTTFF_DISABLE: mask = WINED3DSP_WRITEMASK_3; break;
}
} else {
projected = FALSE;
}
} else if (hex_version < WINED3DPS_VERSION(2,0)) {
DWORD src_mod = arg->src[0] & WINED3DSP_SRCMOD_MASK;
if (src_mod == WINED3DSPSM_DZ) {
projected = TRUE;
mask = WINED3DSP_WRITEMASK_2;
} else if (src_mod == WINED3DSPSM_DW) {
projected = TRUE;
mask = WINED3DSP_WRITEMASK_3;
} else {
projected = FALSE;
}
} else {
if(arg->opcode_token & WINED3DSI_TEXLD_PROJECT) {
/* ps 2.0 texldp instruction always divides by the fourth component. */
projected = TRUE;
mask = WINED3DSP_WRITEMASK_3;
} else {
projected = FALSE;
}
}
if(deviceImpl->stateBlock->textures[sampler_idx] &&
IWineD3DBaseTexture_GetTextureDimensions(deviceImpl->stateBlock->textures[sampler_idx]) == GL_TEXTURE_RECTANGLE_ARB) {
texrect = TRUE;
}
shader_glsl_get_sample_function(sampler_type, projected, texrect, &sample_function);
mask |= sample_function.coord_mask;
if (hex_version < WINED3DPS_VERSION(2,0)) {
shader_glsl_get_write_mask(arg->dst, dst_swizzle);
} else {
shader_glsl_get_swizzle(arg->src[1], FALSE, arg->dst, dst_swizzle);
}
/* 1.0-1.3: Use destination register as coordinate source.
1.4+: Use provided coordinate source register. */
if (hex_version < WINED3DPS_VERSION(1,4)) {
char coord_mask[6];
shader_glsl_get_write_mask(mask, coord_mask);
shader_addline(arg->buffer, "%s(Psampler%u, T%u%s)%s);\n",
sample_function.name, sampler_idx, sampler_idx, coord_mask, dst_swizzle);
} else {
glsl_src_param_t coord_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], mask, &coord_param);
if(arg->opcode_token & WINED3DSI_TEXLD_BIAS) {
glsl_src_param_t bias;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_3, &bias);
shader_addline(arg->buffer, "%s(Psampler%u, %s, %s)%s);\n",
sample_function.name, sampler_idx, coord_param.param_str,
bias.param_str, dst_swizzle);
} else {
shader_addline(arg->buffer, "%s(Psampler%u, %s)%s);\n",
sample_function.name, sampler_idx, coord_param.param_str, dst_swizzle);
}
}
}
static void shader_glsl_texldl(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*)arg->shader;
IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
glsl_sample_function_t sample_function;
glsl_src_param_t coord_param, lod_param;
char dst_swizzle[6];
DWORD sampler_type;
DWORD sampler_idx;
BOOL texrect = FALSE;
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_swizzle(arg->src[1], FALSE, arg->dst, dst_swizzle);
sampler_idx = arg->src[1] & WINED3DSP_REGNUM_MASK;
sampler_type = arg->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
if(deviceImpl->stateBlock->textures[sampler_idx] &&
IWineD3DBaseTexture_GetTextureDimensions(deviceImpl->stateBlock->textures[sampler_idx]) == GL_TEXTURE_RECTANGLE_ARB) {
texrect = TRUE;
}
shader_glsl_get_sample_function(sampler_type, FALSE, texrect, &sample_function); shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], sample_function.coord_mask, &coord_param);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_3, &lod_param);
if (shader_is_pshader_version(This->baseShader.hex_version)) {
/* The GLSL spec claims the Lod sampling functions are only supported in vertex shaders.
* However, they seem to work just fine in fragment shaders as well. */
WARN("Using %sLod in fragment shader.\n", sample_function.name);
shader_addline(arg->buffer, "%sLod(Psampler%u, %s, %s)%s);\n",
sample_function.name, sampler_idx, coord_param.param_str, lod_param.param_str, dst_swizzle);
} else {
shader_addline(arg->buffer, "%sLod(Vsampler%u, %s, %s)%s);\n",
sample_function.name, sampler_idx, coord_param.param_str, lod_param.param_str, dst_swizzle);
}
}
static void pshader_glsl_texcoord(SHADER_OPCODE_ARG* arg) {
/* FIXME: Make this work for more than just 2D textures */
IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
SHADER_BUFFER* buffer = arg->buffer;
DWORD hex_version = This->baseShader.hex_version;
DWORD write_mask;
char dst_mask[6];
write_mask = shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(write_mask, dst_mask);
if (hex_version != WINED3DPS_VERSION(1,4)) {
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
shader_addline(buffer, "clamp(gl_TexCoord[%u], 0.0, 1.0)%s);\n", reg, dst_mask);
} else {
DWORD reg = arg->src[0] & WINED3DSP_REGNUM_MASK;
DWORD src_mod = arg->src[0] & WINED3DSP_SRCMOD_MASK;
char dst_swizzle[6];
shader_glsl_get_swizzle(arg->src[0], FALSE, write_mask, dst_swizzle);
if (src_mod == WINED3DSPSM_DZ) {
glsl_src_param_t div_param;
unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_2, &div_param);
if (mask_size > 1) {
shader_addline(buffer, "gl_TexCoord[%u]%s / vec%d(%s));\n", reg, dst_swizzle, mask_size, div_param.param_str);
} else {
shader_addline(buffer, "gl_TexCoord[%u]%s / %s);\n", reg, dst_swizzle, div_param.param_str);
}
} else if (src_mod == WINED3DSPSM_DW) {
glsl_src_param_t div_param;
unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_3, &div_param);
if (mask_size > 1) {
shader_addline(buffer, "gl_TexCoord[%u]%s / vec%d(%s));\n", reg, dst_swizzle, mask_size, div_param.param_str);
} else {
shader_addline(buffer, "gl_TexCoord[%u]%s / %s);\n", reg, dst_swizzle, div_param.param_str);
}
} else {
shader_addline(buffer, "gl_TexCoord[%u]%s);\n", reg, dst_swizzle);
}
}
}
/** Process the WINED3DSIO_TEXDP3TEX instruction in GLSL:
* Take a 3-component dot product of the TexCoord[dstreg] and src,
* then perform a 1D texture lookup from stage dstregnum, place into dst. */
static void pshader_glsl_texdp3tex(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
char dst_mask[6];
glsl_sample_function_t sample_function;
DWORD sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
DWORD sampler_type = arg->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
/* Do I have to take care about the projected bit? I don't think so, since the dp3 returns only one
* scalar, and projected sampling would require 4.
*
* It is a dependent read - not valid with conditional NP2 textures
*/
shader_glsl_get_sample_function(sampler_type, FALSE, FALSE, &sample_function);
switch(count_bits(sample_function.coord_mask)) {
case 1:
shader_addline(arg->buffer, "%s(Psampler%u, dot(gl_TexCoord[%u].xyz, %s))%s);\n",
sample_function.name, sampler_idx, sampler_idx, src0_param.param_str, dst_mask);
break;
case 2:
shader_addline(arg->buffer, "%s(Psampler%u, vec2(dot(gl_TexCoord[%u].xyz, %s), 0.0))%s);\n",
sample_function.name, sampler_idx, sampler_idx, src0_param.param_str, dst_mask);
break;
case 3:
shader_addline(arg->buffer, "%s(Psampler%u, vec3(dot(gl_TexCoord[%u].xyz, %s), 0.0, 0.0))%s);\n",
sample_function.name, sampler_idx, sampler_idx, src0_param.param_str, dst_mask);
break;
default:
FIXME("Unexpected mask bitcount %d\n", count_bits(sample_function.coord_mask));
}
}
/** Process the WINED3DSIO_TEXDP3 instruction in GLSL:
* Take a 3-component dot product of the TexCoord[dstreg] and src. */
static void pshader_glsl_texdp3(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
DWORD dstreg = arg->dst & WINED3DSP_REGNUM_MASK;
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
DWORD dst_mask;
unsigned int mask_size;
dst_mask = shader_glsl_append_dst(arg->buffer, arg);
mask_size = shader_glsl_get_write_mask_size(dst_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
if (mask_size > 1) {
shader_addline(arg->buffer, "vec%d(dot(T%u.xyz, %s)));\n", mask_size, dstreg, src0_param.param_str);
} else {
shader_addline(arg->buffer, "dot(T%u.xyz, %s));\n", dstreg, src0_param.param_str);
}
}
/** Process the WINED3DSIO_TEXDEPTH instruction in GLSL:
* Calculate the depth as dst.x / dst.y */
static void pshader_glsl_texdepth(SHADER_OPCODE_ARG* arg) {
glsl_dst_param_t dst_param;
shader_glsl_add_dst_param(arg, arg->dst, 0, &dst_param);
/* Tests show that texdepth never returns anything below 0.0, and that r5.y is clamped to 1.0.
* Negative input is accepted, -0.25 / -0.5 returns 0.5. GL should clamp gl_FragDepth to [0;1], but
* this doesn't always work, so clamp the results manually. Whether or not the x value is clamped at 1
* too is irrelevant, since if x = 0, any y value < 1.0 (and > 1.0 is not allowed) results in a result
* >= 1.0 or < 0.0
*/
shader_addline(arg->buffer, "gl_FragDepth = clamp((%s.x / min(%s.y, 1.0)), 0.0, 1.0);\n", dst_param.reg_name, dst_param.reg_name);
}
/** Process the WINED3DSIO_TEXM3X2DEPTH instruction in GLSL:
* Last row of a 3x2 matrix multiply, use the result to calculate the depth:
* Calculate tmp0.y = TexCoord[dstreg] . src.xyz; (tmp0.x has already been calculated)
* depth = (tmp0.y == 0.0) ? 1.0 : tmp0.x / tmp0.y
*/
static void pshader_glsl_texm3x2depth(SHADER_OPCODE_ARG* arg) {
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
DWORD dstreg = arg->dst & WINED3DSP_REGNUM_MASK;
glsl_src_param_t src0_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_addline(arg->buffer, "tmp0.y = dot(T%u.xyz, %s);\n", dstreg, src0_param.param_str);
shader_addline(arg->buffer, "gl_FragDepth = (tmp0.y == 0.0) ? 1.0 : clamp(tmp0.x / tmp0.y, 0.0, 1.0);\n");
}
/** Process the WINED3DSIO_TEXM3X2PAD instruction in GLSL
* Calculate the 1st of a 2-row matrix multiplication. */
static void pshader_glsl_texm3x2pad(SHADER_OPCODE_ARG* arg) {
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
SHADER_BUFFER* buffer = arg->buffer;
glsl_src_param_t src0_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_addline(buffer, "tmp0.x = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
}
/** Process the WINED3DSIO_TEXM3X3PAD instruction in GLSL
* Calculate the 1st or 2nd row of a 3-row matrix multiplication. */
static void pshader_glsl_texm3x3pad(SHADER_OPCODE_ARG* arg) {
IWineD3DPixelShaderImpl* shader = (IWineD3DPixelShaderImpl*) arg->shader;
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
SHADER_BUFFER* buffer = arg->buffer;
SHADER_PARSE_STATE* current_state = &shader->baseShader.parse_state;
glsl_src_param_t src0_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_addline(buffer, "tmp0.%c = dot(T%u.xyz, %s);\n", 'x' + current_state->current_row, reg, src0_param.param_str);
current_state->texcoord_w[current_state->current_row++] = reg;
}
static void pshader_glsl_texm3x2tex(SHADER_OPCODE_ARG* arg) {
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
SHADER_BUFFER* buffer = arg->buffer;
glsl_src_param_t src0_param;
char dst_mask[6];
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_addline(buffer, "tmp0.y = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
shader_glsl_append_dst(buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
/* Sample the texture using the calculated coordinates */
shader_addline(buffer, "texture2D(Psampler%u, tmp0.xy)%s);\n", reg, dst_mask);
}
/** Process the WINED3DSIO_TEXM3X3TEX instruction in GLSL
* Perform the 3rd row of a 3x3 matrix multiply, then sample the texture using the calculated coordinates */
static void pshader_glsl_texm3x3tex(SHADER_OPCODE_ARG* arg) {
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
glsl_src_param_t src0_param;
char dst_mask[6];
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
SHADER_PARSE_STATE* current_state = &This->baseShader.parse_state;
DWORD sampler_type = arg->reg_maps->samplers[reg] & WINED3DSP_TEXTURETYPE_MASK;
glsl_sample_function_t sample_function;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_addline(arg->buffer, "tmp0.z = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
/* Dependent read, not valid with conditional NP2 */
shader_glsl_get_sample_function(sampler_type, FALSE, FALSE, &sample_function);
/* Sample the texture using the calculated coordinates */
shader_addline(arg->buffer, "%s(Psampler%u, tmp0.xyz)%s);\n", sample_function.name, reg, dst_mask);
current_state->current_row = 0;
}
/** Process the WINED3DSIO_TEXM3X3 instruction in GLSL
* Perform the 3rd row of a 3x3 matrix multiply */
static void pshader_glsl_texm3x3(SHADER_OPCODE_ARG* arg) {
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
glsl_src_param_t src0_param;
char dst_mask[6];
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
SHADER_PARSE_STATE* current_state = &This->baseShader.parse_state;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_addline(arg->buffer, "vec4(tmp0.xy, dot(T%u.xyz, %s), 1.0)%s);\n", reg, src0_param.param_str, dst_mask);
current_state->current_row = 0;
}
/** Process the WINED3DSIO_TEXM3X3SPEC instruction in GLSL
* Perform the final texture lookup based on the previous 2 3x3 matrix multiplies */
static void pshader_glsl_texm3x3spec(SHADER_OPCODE_ARG* arg) {
IWineD3DPixelShaderImpl* shader = (IWineD3DPixelShaderImpl*) arg->shader;
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
char dst_mask[6];
SHADER_BUFFER* buffer = arg->buffer;
SHADER_PARSE_STATE* current_state = &shader->baseShader.parse_state;
DWORD stype = arg->reg_maps->samplers[reg] & WINED3DSP_TEXTURETYPE_MASK;
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
glsl_sample_function_t sample_function;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], src_mask, &src1_param);
/* Perform the last matrix multiply operation */
shader_addline(buffer, "tmp0.z = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
/* Reflection calculation */
shader_addline(buffer, "tmp0.xyz = -reflect((%s), normalize(tmp0.xyz));\n", src1_param.param_str);
shader_glsl_append_dst(buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
/* Dependent read, not valid with conditional NP2 */
shader_glsl_get_sample_function(stype, FALSE, FALSE, &sample_function);
/* Sample the texture */
shader_addline(buffer, "%s(Psampler%u, tmp0.xyz)%s);\n", sample_function.name, reg, dst_mask);
current_state->current_row = 0;
}
/** Process the WINED3DSIO_TEXM3X3VSPEC instruction in GLSL
* Perform the final texture lookup based on the previous 2 3x3 matrix multiplies */
static void pshader_glsl_texm3x3vspec(SHADER_OPCODE_ARG* arg) {
IWineD3DPixelShaderImpl* shader = (IWineD3DPixelShaderImpl*) arg->shader;
DWORD reg = arg->dst & WINED3DSP_REGNUM_MASK;
SHADER_BUFFER* buffer = arg->buffer;
SHADER_PARSE_STATE* current_state = &shader->baseShader.parse_state;
glsl_src_param_t src0_param;
char dst_mask[6];
DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
DWORD sampler_type = arg->reg_maps->samplers[reg] & WINED3DSP_TEXTURETYPE_MASK;
glsl_sample_function_t sample_function;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], src_mask, &src0_param);
/* Perform the last matrix multiply operation */
shader_addline(buffer, "tmp0.z = dot(vec3(T%u), vec3(%s));\n", reg, src0_param.param_str);
/* Construct the eye-ray vector from w coordinates */
shader_addline(buffer, "tmp1.xyz = normalize(vec3(gl_TexCoord[%u].w, gl_TexCoord[%u].w, gl_TexCoord[%u].w));\n",
current_state->texcoord_w[0], current_state->texcoord_w[1], reg);
shader_addline(buffer, "tmp0.xyz = -reflect(tmp1.xyz, normalize(tmp0.xyz));\n");
shader_glsl_append_dst(buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
/* Dependent read, not valid with conditional NP2 */
shader_glsl_get_sample_function(sampler_type, FALSE, FALSE, &sample_function);
/* Sample the texture using the calculated coordinates */
shader_addline(buffer, "%s(Psampler%u, tmp0.xyz)%s);\n", sample_function.name, reg, dst_mask);
current_state->current_row = 0;
}
/** Process the WINED3DSIO_TEXBEM instruction in GLSL.
* Apply a fake bump map transform.
* texbem is pshader <= 1.3 only, this saves a few version checks
*/
static void pshader_glsl_texbem(SHADER_OPCODE_ARG* arg) {
IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
char dst_swizzle[6];
glsl_sample_function_t sample_function;
glsl_src_param_t coord_param;
DWORD sampler_type;
DWORD sampler_idx;
DWORD mask;
DWORD flags;
char coord_mask[6];
sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
flags = deviceImpl->stateBlock->textureState[sampler_idx][WINED3DTSS_TEXTURETRANSFORMFLAGS];
sampler_type = arg->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
/* Dependent read, not valid with conditional NP2 */
shader_glsl_get_sample_function(sampler_type, FALSE, FALSE, &sample_function);
mask = sample_function.coord_mask;
shader_glsl_get_write_mask(arg->dst, dst_swizzle);
shader_glsl_get_write_mask(mask, coord_mask);
/* with projective textures, texbem only divides the static texture coord, not the displacement,
* so we can't let the GL handle this.
*/
if (flags & WINED3DTTFF_PROJECTED) {
DWORD div_mask=0;
char coord_div_mask[3];
switch (flags & ~WINED3DTTFF_PROJECTED) {
case WINED3DTTFF_COUNT1: FIXME("WINED3DTTFF_PROJECTED with WINED3DTTFF_COUNT1?\n"); break;
case WINED3DTTFF_COUNT2: div_mask = WINED3DSP_WRITEMASK_1; break;
case WINED3DTTFF_COUNT3: div_mask = WINED3DSP_WRITEMASK_2; break;
case WINED3DTTFF_COUNT4:
case WINED3DTTFF_DISABLE: div_mask = WINED3DSP_WRITEMASK_3; break;
}
shader_glsl_get_write_mask(div_mask, coord_div_mask);
shader_addline(arg->buffer, "T%u%s /= T%u%s;\n", sampler_idx, coord_mask, sampler_idx, coord_div_mask);
}
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0|WINED3DSP_WRITEMASK_1, &coord_param);
if(arg->opcode->opcode == WINED3DSIO_TEXBEML) {
glsl_src_param_t luminance_param;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_2, &luminance_param);
shader_addline(arg->buffer, "(%s(Psampler%u, T%u%s + vec4(bumpenvmat%d * %s, 0.0, 0.0)%s )*(%s * luminancescale%d + luminanceoffset%d))%s);\n",
sample_function.name, sampler_idx, sampler_idx, coord_mask, sampler_idx, coord_param.param_str, coord_mask,
luminance_param.param_str, sampler_idx, sampler_idx, dst_swizzle);
} else {
shader_addline(arg->buffer, "%s(Psampler%u, T%u%s + vec4(bumpenvmat%d * %s, 0.0, 0.0)%s )%s);\n",
sample_function.name, sampler_idx, sampler_idx, coord_mask, sampler_idx, coord_param.param_str, coord_mask, dst_swizzle);
}
}
static void pshader_glsl_bem(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param, src1_param;
DWORD sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0|WINED3DSP_WRITEMASK_1, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_0|WINED3DSP_WRITEMASK_1, &src1_param);
shader_glsl_append_dst(arg->buffer, arg);
shader_addline(arg->buffer, "%s + bumpenvmat%d * %s);\n",
src0_param.param_str, sampler_idx, src1_param.param_str);
}
/** Process the WINED3DSIO_TEXREG2AR instruction in GLSL
* Sample 2D texture at dst using the alpha & red (wx) components of src as texture coordinates */
static void pshader_glsl_texreg2ar(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
DWORD sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
char dst_mask[6];
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_ALL, &src0_param);
shader_addline(arg->buffer, "texture2D(Psampler%u, %s.wx)%s);\n", sampler_idx, src0_param.reg_name, dst_mask);
}
/** Process the WINED3DSIO_TEXREG2GB instruction in GLSL
* Sample 2D texture at dst using the green & blue (yz) components of src as texture coordinates */
static void pshader_glsl_texreg2gb(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
DWORD sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
char dst_mask[6];
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_ALL, &src0_param);
shader_addline(arg->buffer, "texture2D(Psampler%u, %s.yz)%s);\n", sampler_idx, src0_param.reg_name, dst_mask);
}
/** Process the WINED3DSIO_TEXREG2RGB instruction in GLSL
* Sample texture at dst using the rgb (xyz) components of src as texture coordinates */
static void pshader_glsl_texreg2rgb(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
char dst_mask[6];
DWORD sampler_idx = arg->dst & WINED3DSP_REGNUM_MASK;
DWORD sampler_type = arg->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
glsl_sample_function_t sample_function;
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
/* Dependent read, not valid with conditional NP2 */
shader_glsl_get_sample_function(sampler_type, FALSE, FALSE, &sample_function);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], sample_function.coord_mask, &src0_param);
shader_addline(arg->buffer, "%s(Psampler%u, %s)%s);\n", sample_function.name, sampler_idx, src0_param.param_str, dst_mask);
}
/** Process the WINED3DSIO_TEXKILL instruction in GLSL.
* If any of the first 3 components are < 0, discard this pixel */
static void pshader_glsl_texkill(SHADER_OPCODE_ARG* arg) {
IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
DWORD hex_version = This->baseShader.hex_version;
glsl_dst_param_t dst_param;
/* The argument is a destination parameter, and no writemasks are allowed */
shader_glsl_add_dst_param(arg, arg->dst, 0, &dst_param);
if((hex_version >= WINED3DPS_VERSION(2,0))) {
/* 2.0 shaders compare all 4 components in texkill */
shader_addline(arg->buffer, "if (any(lessThan(%s.xyzw, vec4(0.0)))) discard;\n", dst_param.reg_name);
} else {
/* 1.X shaders only compare the first 3 components, probably due to the nature of the texkill
* instruction as a tex* instruction, and phase, which kills all a / w components. Even if all
* 4 components are defined, only the first 3 are used
*/
shader_addline(arg->buffer, "if (any(lessThan(%s.xyz, vec3(0.0)))) discard;\n", dst_param.reg_name);
}
}
/** Process the WINED3DSIO_DP2ADD instruction in GLSL.
* dst = dot2(src0, src1) + src2 */
static void pshader_glsl_dp2add(SHADER_OPCODE_ARG* arg) {
glsl_src_param_t src0_param;
glsl_src_param_t src1_param;
glsl_src_param_t src2_param;
DWORD write_mask;
unsigned int mask_size;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
mask_size = shader_glsl_get_write_mask_size(write_mask);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &src0_param);
shader_glsl_add_src_param(arg, arg->src[1], arg->src_addr[1], WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &src1_param);
shader_glsl_add_src_param(arg, arg->src[2], arg->src_addr[2], WINED3DSP_WRITEMASK_0, &src2_param);
if (mask_size > 1) {
shader_addline(arg->buffer, "vec%d(dot(%s, %s) + %s));\n", mask_size, src0_param.param_str, src1_param.param_str, src2_param.param_str);
} else {
shader_addline(arg->buffer, "dot(%s, %s) + %s);\n", src0_param.param_str, src1_param.param_str, src2_param.param_str);
}
}
static void pshader_glsl_input_pack(
SHADER_BUFFER* buffer,
semantic* semantics_in,
IWineD3DPixelShader *iface) {
unsigned int i;
IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *) iface;
for (i = 0; i < MAX_REG_INPUT; i++) {
DWORD usage_token = semantics_in[i].usage;
DWORD register_token = semantics_in[i].reg;
DWORD usage, usage_idx;
char reg_mask[6];
/* Uninitialized */
if (!usage_token) continue;
usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
shader_glsl_get_write_mask(register_token, reg_mask);
switch(usage) {
case WINED3DDECLUSAGE_TEXCOORD:
if(usage_idx < 8 && This->vertexprocessing == pretransformed) {
shader_addline(buffer, "IN[%u]%s = gl_TexCoord[%u]%s;\n",
This->input_reg_map[i], reg_mask, usage_idx, reg_mask);
} else {
shader_addline(buffer, "IN[%u]%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
This->input_reg_map[i], reg_mask, reg_mask);
}
break;
case WINED3DDECLUSAGE_COLOR:
if (usage_idx == 0)
shader_addline(buffer, "IN[%u]%s = vec4(gl_Color)%s;\n",
This->input_reg_map[i], reg_mask, reg_mask);
else if (usage_idx == 1)
shader_addline(buffer, "IN[%u]%s = vec4(gl_SecondaryColor)%s;\n",
This->input_reg_map[i], reg_mask, reg_mask);
else
shader_addline(buffer, "IN[%u]%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
This->input_reg_map[i], reg_mask, reg_mask);
break;
default:
shader_addline(buffer, "IN[%u]%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
This->input_reg_map[i], reg_mask, reg_mask);
}
}
}
/*********************************************
* Vertex Shader Specific Code begins here
********************************************/
static void add_glsl_program_entry(struct shader_glsl_priv *priv, struct glsl_shader_prog_link *entry) {
glsl_program_key_t *key;
key = HeapAlloc(GetProcessHeap(), 0, sizeof(glsl_program_key_t));
key->vshader = entry->vshader;
key->pshader = entry->pshader;
hash_table_put(priv->glsl_program_lookup, key, entry);
}
static struct glsl_shader_prog_link *get_glsl_program_entry(struct shader_glsl_priv *priv,
GLhandleARB vshader, GLhandleARB pshader) {
glsl_program_key_t key;
key.vshader = vshader;
key.pshader = pshader;
return (struct glsl_shader_prog_link *)hash_table_get(priv->glsl_program_lookup, &key);
}
static void delete_glsl_program_entry(struct shader_glsl_priv *priv, WineD3D_GL_Info *gl_info, struct glsl_shader_prog_link *entry) {
glsl_program_key_t *key;
key = HeapAlloc(GetProcessHeap(), 0, sizeof(glsl_program_key_t));
key->vshader = entry->vshader;
key->pshader = entry->pshader;
hash_table_remove(priv->glsl_program_lookup, key);
GL_EXTCALL(glDeleteObjectARB(entry->programId));
if (entry->vshader) list_remove(&entry->vshader_entry);
if (entry->pshader) list_remove(&entry->pshader_entry);
HeapFree(GetProcessHeap(), 0, entry->vuniformF_locations);
HeapFree(GetProcessHeap(), 0, entry->puniformF_locations);
HeapFree(GetProcessHeap(), 0, entry);
}
static void handle_ps3_input(SHADER_BUFFER *buffer, semantic *semantics_in, semantic *semantics_out, WineD3D_GL_Info *gl_info, DWORD *map) {
unsigned int i, j;
DWORD usage_token, usage_token_out;
DWORD register_token, register_token_out;
DWORD usage, usage_idx, usage_out, usage_idx_out;
DWORD *set;
DWORD in_idx;
DWORD in_count = GL_LIMITS(glsl_varyings) / 4;
char reg_mask[6], reg_mask_out[6];
char destination[50];
set = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*set) * (in_count + 2));
if (!semantics_out) {
/* Save gl_FrontColor & gl_FrontSecondaryColor before overwriting them. */
shader_addline(buffer, "vec4 front_color = gl_FrontColor;\n");
shader_addline(buffer, "vec4 front_secondary_color = gl_FrontSecondaryColor;\n");
}
for(i = 0; i < MAX_REG_INPUT; i++) {
usage_token = semantics_in[i].usage;
if (!usage_token) continue;
in_idx = map[i];
if (in_idx >= (in_count + 2)) {
FIXME("More input varyings declared than supported, expect issues\n");
continue;
} else if(map[i] == -1) {
/* Declared, but not read register */
continue;
}
if (in_idx == in_count) {
sprintf(destination, "gl_FrontColor");
} else if (in_idx == in_count + 1) {
sprintf(destination, "gl_FrontSecondaryColor");
} else {
sprintf(destination, "IN[%u]", in_idx);
}
register_token = semantics_in[i].reg;
usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
set[map[i]] = shader_glsl_get_write_mask(register_token, reg_mask);
if(!semantics_out) {
switch(usage) {
case WINED3DDECLUSAGE_COLOR:
if (usage_idx == 0)
shader_addline(buffer, "%s%s = front_color%s;\n",
destination, reg_mask, reg_mask);
else if (usage_idx == 1)
shader_addline(buffer, "%s%s = front_secondary_color%s;\n",
destination, reg_mask, reg_mask);
else
shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
destination, reg_mask, reg_mask);
break;
case WINED3DDECLUSAGE_TEXCOORD:
if (usage_idx < 8) {
shader_addline(buffer, "%s%s = gl_TexCoord[%u]%s;\n",
destination, reg_mask, usage_idx, reg_mask);
} else {
shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
destination, reg_mask, reg_mask);
}
break;
case WINED3DDECLUSAGE_FOG:
shader_addline(buffer, "%s%s = vec4(gl_FogFragCoord, 0.0, 0.0, 0.0)%s;\n",
destination, reg_mask, reg_mask);
break;
default:
shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
destination, reg_mask, reg_mask);
}
} else {
BOOL found = FALSE;
for(j = 0; j < MAX_REG_OUTPUT; j++) {
usage_token_out = semantics_out[j].usage;
if (!usage_token_out) continue;
register_token_out = semantics_out[j].reg;
usage_out = (usage_token_out & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
usage_idx_out = (usage_token_out & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
shader_glsl_get_write_mask(register_token_out, reg_mask_out);
if(usage == usage_out &&
usage_idx == usage_idx_out) {
shader_addline(buffer, "%s%s = OUT[%u]%s;\n",
destination, reg_mask, j, reg_mask);
found = TRUE;
}
}
if(!found) {
shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
destination, reg_mask, reg_mask);
}
}
}
/* This is solely to make the compiler / linker happy and avoid warning about undefined
* varyings. It shouldn't result in any real code executed on the GPU, since all read
* input varyings are assigned above, if the optimizer works properly.
*/
for(i = 0; i < in_count + 2; i++) {
if(set[i] != WINED3DSP_WRITEMASK_ALL) {
unsigned int size = 0;
memset(reg_mask, 0, sizeof(reg_mask));
if(!(set[i] & WINED3DSP_WRITEMASK_0)) {
reg_mask[size] = 'x';
size++;
}
if(!(set[i] & WINED3DSP_WRITEMASK_1)) {
reg_mask[size] = 'y';
size++;
}
if(!(set[i] & WINED3DSP_WRITEMASK_2)) {
reg_mask[size] = 'z';
size++;
}
if(!(set[i] & WINED3DSP_WRITEMASK_3)) {
reg_mask[size] = 'w';
size++;
}
if (i == in_count) {
sprintf(destination, "gl_FrontColor");
} else if (i == in_count + 1) {
sprintf(destination, "gl_FrontSecondaryColor");
} else {
sprintf(destination, "IN[%u]", i);
}
if (size == 1) {
shader_addline(buffer, "%s.%s = 0.0;\n", destination, reg_mask);
} else {
shader_addline(buffer, "%s.%s = vec%u(0.0);\n", destination, reg_mask, size);
}
}
}
HeapFree(GetProcessHeap(), 0, set);
}
static GLhandleARB generate_param_reorder_function(IWineD3DVertexShader *vertexshader,
IWineD3DPixelShader *pixelshader,
WineD3D_GL_Info *gl_info) {
GLhandleARB ret = 0;
IWineD3DVertexShaderImpl *vs = (IWineD3DVertexShaderImpl *) vertexshader;
IWineD3DPixelShaderImpl *ps = (IWineD3DPixelShaderImpl *) pixelshader;
IWineD3DDeviceImpl *device;
DWORD vs_major = WINED3DSHADER_VERSION_MAJOR(vs->baseShader.hex_version);
DWORD ps_major = ps ? WINED3DSHADER_VERSION_MAJOR(ps->baseShader.hex_version) : 0;
unsigned int i;
SHADER_BUFFER buffer;
DWORD usage_token;
DWORD register_token;
DWORD usage, usage_idx, writemask;
char reg_mask[6];
semantic *semantics_out, *semantics_in;
buffer.buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, SHADER_PGMSIZE);
buffer.bsize = 0;
buffer.lineNo = 0;
buffer.newline = TRUE;
shader_addline(&buffer, "#version 120\n");
if(vs_major < 3 && ps_major < 3) {
/* That one is easy: The vertex shader writes to the builtin varyings, the pixel shader reads from them.
* Take care about the texcoord .w fixup though if we're using the fixed function fragment pipeline
*/
device = (IWineD3DDeviceImpl *) vs->baseShader.device;
if((GLINFO_LOCATION).set_texcoord_w && ps_major == 0 && vs_major > 0 &&
!device->frag_pipe->ffp_proj_control) {
shader_addline(&buffer, "void order_ps_input() {\n");
for(i = 0; i < min(8, MAX_REG_TEXCRD); i++) {
if(vs->baseShader.reg_maps.texcoord_mask[i] != 0 &&
vs->baseShader.reg_maps.texcoord_mask[i] != WINED3DSP_WRITEMASK_ALL) {
shader_addline(&buffer, "gl_TexCoord[%u].w = 1.0;\n", i);
}
}
shader_addline(&buffer, "}\n");
} else {
shader_addline(&buffer, "void order_ps_input() { /* do nothing */ }\n");
}
} else if(ps_major < 3 && vs_major >= 3) {
/* The vertex shader writes to its own varyings, the pixel shader needs them in the builtin ones */
semantics_out = vs->semantics_out;
shader_addline(&buffer, "void order_ps_input(in vec4 OUT[%u]) {\n", MAX_REG_OUTPUT);
for(i = 0; i < MAX_REG_OUTPUT; i++) {
usage_token = semantics_out[i].usage;
if (!usage_token) continue;
register_token = semantics_out[i].reg;
usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
writemask = shader_glsl_get_write_mask(register_token, reg_mask);
switch(usage) {
case WINED3DDECLUSAGE_COLOR:
if (usage_idx == 0)
shader_addline(&buffer, "gl_FrontColor%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
else if (usage_idx == 1)
shader_addline(&buffer, "gl_FrontSecondaryColor%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
break;
case WINED3DDECLUSAGE_POSITION:
shader_addline(&buffer, "gl_Position%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
break;
case WINED3DDECLUSAGE_TEXCOORD:
if (usage_idx < 8) {
if(!(GLINFO_LOCATION).set_texcoord_w || ps_major > 0) writemask |= WINED3DSP_WRITEMASK_3;
shader_addline(&buffer, "gl_TexCoord[%u]%s = OUT[%u]%s;\n",
usage_idx, reg_mask, i, reg_mask);
if(!(writemask & WINED3DSP_WRITEMASK_3)) {
shader_addline(&buffer, "gl_TexCoord[%u].w = 1.0;\n", usage_idx);
}
}
break;
case WINED3DDECLUSAGE_PSIZE:
shader_addline(&buffer, "gl_PointSize = OUT[%u].x;\n", i);
break;
case WINED3DDECLUSAGE_FOG:
shader_addline(&buffer, "gl_FogFragCoord = OUT[%u].%c;\n", i, reg_mask[1]);
break;
default:
break;
}
}
shader_addline(&buffer, "}\n");
} else if(ps_major >= 3 && vs_major >= 3) {
semantics_out = vs->semantics_out;
semantics_in = ps->semantics_in;
/* This one is tricky: a 3.0 pixel shader reads from a 3.0 vertex shader */
shader_addline(&buffer, "varying vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
shader_addline(&buffer, "void order_ps_input(in vec4 OUT[%u]) {\n", MAX_REG_OUTPUT);
/* First, sort out position and point size. Those are not passed to the pixel shader */
for(i = 0; i < MAX_REG_OUTPUT; i++) {
usage_token = semantics_out[i].usage;
if (!usage_token) continue;
register_token = semantics_out[i].reg;
usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
shader_glsl_get_write_mask(register_token, reg_mask);
switch(usage) {
case WINED3DDECLUSAGE_POSITION:
shader_addline(&buffer, "gl_Position%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
break;
case WINED3DDECLUSAGE_PSIZE:
shader_addline(&buffer, "gl_PointSize = OUT[%u].x;\n", i);
break;
default:
break;
}
}
/* Then, fix the pixel shader input */
handle_ps3_input(&buffer, semantics_in, semantics_out, gl_info, ps->input_reg_map);
shader_addline(&buffer, "}\n");
} else if(ps_major >= 3 && vs_major < 3) {
semantics_in = ps->semantics_in;
shader_addline(&buffer, "varying vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
shader_addline(&buffer, "void order_ps_input() {\n");
/* The vertex shader wrote to the builtin varyings. There is no need to figure out position and
* point size, but we depend on the optimizers kindness to find out that the pixel shader doesn't
* read gl_TexCoord and gl_ColorX, otherwise we'll run out of varyings
*/
handle_ps3_input(&buffer, semantics_in, NULL, gl_info, ps->input_reg_map);
shader_addline(&buffer, "}\n");
} else {
ERR("Unexpected vertex and pixel shader version condition: vs: %d, ps: %d\n", vs_major, ps_major);
}
ret = GL_EXTCALL(glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB));
checkGLcall("glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB)");
GL_EXTCALL(glShaderSourceARB(ret, 1, (const char**)&buffer.buffer, NULL));
checkGLcall("glShaderSourceARB(ret, 1, (const char**)&buffer.buffer, NULL)");
GL_EXTCALL(glCompileShaderARB(ret));
checkGLcall("glCompileShaderARB(ret)");
HeapFree(GetProcessHeap(), 0, buffer.buffer);
return ret;
}
static void hardcode_local_constants(IWineD3DBaseShaderImpl *shader, WineD3D_GL_Info *gl_info, GLhandleARB programId, char prefix) {
local_constant* lconst;
GLuint tmp_loc;
float *value;
char glsl_name[8];
LIST_FOR_EACH_ENTRY(lconst, &shader->baseShader.constantsF, local_constant, entry) {
value = (float *) lconst->value;
snprintf(glsl_name, sizeof(glsl_name), "%cLC%u", prefix, lconst->idx);
tmp_loc = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
GL_EXTCALL(glUniform4fvARB(tmp_loc, 1, value));
}
checkGLcall("Hardcoding local constants\n");
}
/** Sets the GLSL program ID for the given pixel and vertex shader combination.
* It sets the programId on the current StateBlock (because it should be called
* inside of the DrawPrimitive() part of the render loop).
*
* If a program for the given combination does not exist, create one, and store
* the program in the hash table. If it creates a program, it will link the
* given objects, too.
*/
static void set_glsl_shader_program(IWineD3DDevice *iface, BOOL use_ps, BOOL use_vs) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
struct shader_glsl_priv *priv = (struct shader_glsl_priv *)This->shader_priv;
WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
IWineD3DPixelShader *pshader = This->stateBlock->pixelShader;
IWineD3DVertexShader *vshader = This->stateBlock->vertexShader;
struct glsl_shader_prog_link *entry = NULL;
GLhandleARB programId = 0;
GLhandleARB reorder_shader_id = 0;
int i;
char glsl_name[8];
GLhandleARB vshader_id = use_vs ? ((IWineD3DBaseShaderImpl*)vshader)->baseShader.prgId : 0;
GLhandleARB pshader_id = use_ps ? ((IWineD3DBaseShaderImpl*)pshader)->baseShader.prgId : 0;
entry = get_glsl_program_entry(priv, vshader_id, pshader_id);
if (entry) {
priv->glsl_program = entry;
return;
}
/* If we get to this point, then no matching program exists, so we create one */
programId = GL_EXTCALL(glCreateProgramObjectARB());
TRACE("Created new GLSL shader program %u\n", programId);
/* Create the entry */
entry = HeapAlloc(GetProcessHeap(), 0, sizeof(struct glsl_shader_prog_link));
entry->programId = programId;
entry->vshader = vshader_id;
entry->pshader = pshader_id;
/* Add the hash table entry */
add_glsl_program_entry(priv, entry);
/* Set the current program */
priv->glsl_program = entry;
/* Attach GLSL vshader */
if (vshader_id) {
int max_attribs = 16; /* TODO: Will this always be the case? It is at the moment... */
char tmp_name[10];
reorder_shader_id = generate_param_reorder_function(vshader, pshader, gl_info);
TRACE("Attaching GLSL shader object %u to program %u\n", reorder_shader_id, programId);
GL_EXTCALL(glAttachObjectARB(programId, reorder_shader_id));
checkGLcall("glAttachObjectARB");
/* Flag the reorder function for deletion, then it will be freed automatically when the program
* is destroyed
*/
GL_EXTCALL(glDeleteObjectARB(reorder_shader_id));
TRACE("Attaching GLSL shader object %u to program %u\n", vshader_id, programId);
GL_EXTCALL(glAttachObjectARB(programId, vshader_id));
checkGLcall("glAttachObjectARB");
/* Bind vertex attributes to a corresponding index number to match
* the same index numbers as ARB_vertex_programs (makes loading
* vertex attributes simpler). With this method, we can use the
* exact same code to load the attributes later for both ARB and
* GLSL shaders.
*
* We have to do this here because we need to know the Program ID
* in order to make the bindings work, and it has to be done prior
* to linking the GLSL program. */
for (i = 0; i < max_attribs; ++i) {
if (((IWineD3DBaseShaderImpl*)vshader)->baseShader.reg_maps.attributes[i]) {
snprintf(tmp_name, sizeof(tmp_name), "attrib%i", i);
GL_EXTCALL(glBindAttribLocationARB(programId, i, tmp_name));
}
}
checkGLcall("glBindAttribLocationARB");
list_add_head(&((IWineD3DBaseShaderImpl *)vshader)->baseShader.linked_programs, &entry->vshader_entry);
}
/* Attach GLSL pshader */
if (pshader_id) {
TRACE("Attaching GLSL shader object %u to program %u\n", pshader_id, programId);
GL_EXTCALL(glAttachObjectARB(programId, pshader_id));
checkGLcall("glAttachObjectARB");
list_add_head(&((IWineD3DBaseShaderImpl *)pshader)->baseShader.linked_programs, &entry->pshader_entry);
}
/* Link the program */
TRACE("Linking GLSL shader program %u\n", programId);
GL_EXTCALL(glLinkProgramARB(programId));
print_glsl_info_log(&GLINFO_LOCATION, programId);
entry->vuniformF_locations = HeapAlloc(GetProcessHeap(), 0, sizeof(GLhandleARB) * GL_LIMITS(vshader_constantsF));
for (i = 0; i < GL_LIMITS(vshader_constantsF); ++i) {
snprintf(glsl_name, sizeof(glsl_name), "VC[%i]", i);
entry->vuniformF_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
}
for (i = 0; i < MAX_CONST_I; ++i) {
snprintf(glsl_name, sizeof(glsl_name), "VI[%i]", i);
entry->vuniformI_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
}
entry->puniformF_locations = HeapAlloc(GetProcessHeap(), 0, sizeof(GLhandleARB) * GL_LIMITS(pshader_constantsF));
for (i = 0; i < GL_LIMITS(pshader_constantsF); ++i) {
snprintf(glsl_name, sizeof(glsl_name), "PC[%i]", i);
entry->puniformF_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
}
for (i = 0; i < MAX_CONST_I; ++i) {
snprintf(glsl_name, sizeof(glsl_name), "PI[%i]", i);
entry->puniformI_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
}
if(pshader) {
for(i = 0; i < ((IWineD3DPixelShaderImpl*)pshader)->numbumpenvmatconsts; i++) {
char name[32];
sprintf(name, "bumpenvmat%d", ((IWineD3DPixelShaderImpl*)pshader)->bumpenvmatconst[i].texunit);
entry->bumpenvmat_location[i] = GL_EXTCALL(glGetUniformLocationARB(programId, name));
sprintf(name, "luminancescale%d", ((IWineD3DPixelShaderImpl*)pshader)->luminanceconst[i].texunit);
entry->luminancescale_location[i] = GL_EXTCALL(glGetUniformLocationARB(programId, name));
sprintf(name, "luminanceoffset%d", ((IWineD3DPixelShaderImpl*)pshader)->luminanceconst[i].texunit);
entry->luminanceoffset_location[i] = GL_EXTCALL(glGetUniformLocationARB(programId, name));
}
}
entry->posFixup_location = GL_EXTCALL(glGetUniformLocationARB(programId, "posFixup"));
entry->srgb_comparison_location = GL_EXTCALL(glGetUniformLocationARB(programId, "srgb_comparison"));
entry->srgb_mul_low_location = GL_EXTCALL(glGetUniformLocationARB(programId, "srgb_mul_low"));
entry->ycorrection_location = GL_EXTCALL(glGetUniformLocationARB(programId, "ycorrection"));
checkGLcall("Find glsl program uniform locations");
if (pshader && WINED3DSHADER_VERSION_MAJOR(((IWineD3DPixelShaderImpl *)pshader)->baseShader.hex_version) >= 3
&& ((IWineD3DPixelShaderImpl *)pshader)->declared_in_count > GL_LIMITS(glsl_varyings) / 4) {
TRACE("Shader %d needs vertex color clamping disabled\n", programId);
entry->vertex_color_clamp = GL_FALSE;
} else {
entry->vertex_color_clamp = GL_FIXED_ONLY_ARB;
}
/* Set the shader to allow uniform loading on it */
GL_EXTCALL(glUseProgramObjectARB(programId));
checkGLcall("glUseProgramObjectARB(programId)");
/* Load the vertex and pixel samplers now. The function that finds the mappings makes sure
* that it stays the same for each vertexshader-pixelshader pair(=linked glsl program). If
* a pshader with fixed function pipeline is used there are no vertex samplers, and if a
* vertex shader with fixed function pixel processing is used we make sure that the card
* supports enough samplers to allow the max number of vertex samplers with all possible
* fixed function fragment processing setups. So once the program is linked these samplers
* won't change.
*/
if(vshader_id) {
/* Load vertex shader samplers */
shader_glsl_load_vsamplers(gl_info, (IWineD3DStateBlock*)This->stateBlock, programId);
}
if(pshader_id) {
/* Load pixel shader samplers */
shader_glsl_load_psamplers(gl_info, (IWineD3DStateBlock*)This->stateBlock, programId);
}
/* If the local constants do not have to be loaded with the environment constants,
* load them now to have them hardcoded in the GLSL program. This saves some CPU cycles
* later
*/
if(pshader && !((IWineD3DPixelShaderImpl*)pshader)->baseShader.load_local_constsF) {
hardcode_local_constants((IWineD3DBaseShaderImpl *) pshader, gl_info, programId, 'P');
}
if(vshader && !((IWineD3DVertexShaderImpl*)vshader)->baseShader.load_local_constsF) {
hardcode_local_constants((IWineD3DBaseShaderImpl *) vshader, gl_info, programId, 'V');
}
}
static GLhandleARB create_glsl_blt_shader(WineD3D_GL_Info *gl_info, enum tex_types tex_type) {
GLhandleARB program_id;
GLhandleARB vshader_id, pshader_id;
const char *blt_vshader[] = {
"#version 120\n"
"void main(void)\n"
"{\n"
" gl_Position = gl_Vertex;\n"
" gl_FrontColor = vec4(1.0);\n"
" gl_TexCoord[0] = gl_MultiTexCoord0;\n"
"}\n"
};
const char *blt_pshaders[tex_type_count] = {
/* tex_1d */
NULL,
/* tex_2d */
"#version 120\n"
"uniform sampler2D sampler;\n"
"void main(void)\n"
"{\n"
" gl_FragDepth = texture2D(sampler, gl_TexCoord[0].xy).x;\n"
"}\n",
/* tex_3d */
NULL,
/* tex_cube */
"#version 120\n"
"uniform samplerCube sampler;\n"
"void main(void)\n"
"{\n"
" gl_FragDepth = textureCube(sampler, gl_TexCoord[0].xyz).x;\n"
"}\n",
/* tex_rect */
"#version 120\n"
"#extension GL_ARB_texture_rectangle : enable\n"
"uniform sampler2DRect sampler;\n"
"void main(void)\n"
"{\n"
" gl_FragDepth = texture2DRect(sampler, gl_TexCoord[0].xy).x;\n"
"}\n",
};
if (!blt_pshaders[tex_type])
{
FIXME("tex_type %#x not supported\n", tex_type);
tex_type = tex_2d;
}
vshader_id = GL_EXTCALL(glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB));
GL_EXTCALL(glShaderSourceARB(vshader_id, 1, blt_vshader, NULL));
GL_EXTCALL(glCompileShaderARB(vshader_id));
pshader_id = GL_EXTCALL(glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB));
GL_EXTCALL(glShaderSourceARB(pshader_id, 1, &blt_pshaders[tex_type], NULL));
GL_EXTCALL(glCompileShaderARB(pshader_id));
program_id = GL_EXTCALL(glCreateProgramObjectARB());
GL_EXTCALL(glAttachObjectARB(program_id, vshader_id));
GL_EXTCALL(glAttachObjectARB(program_id, pshader_id));
GL_EXTCALL(glLinkProgramARB(program_id));
print_glsl_info_log(&GLINFO_LOCATION, program_id);
/* Once linked we can mark the shaders for deletion. They will be deleted once the program
* is destroyed
*/
GL_EXTCALL(glDeleteObjectARB(vshader_id));
GL_EXTCALL(glDeleteObjectARB(pshader_id));
return program_id;
}
static void shader_glsl_select(IWineD3DDevice *iface, BOOL usePS, BOOL useVS) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
struct shader_glsl_priv *priv = (struct shader_glsl_priv *)This->shader_priv;
WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
GLhandleARB program_id = 0;
GLenum old_vertex_color_clamp, current_vertex_color_clamp;
old_vertex_color_clamp = priv->glsl_program ? priv->glsl_program->vertex_color_clamp : GL_FIXED_ONLY_ARB;
if (useVS || usePS) set_glsl_shader_program(iface, usePS, useVS);
else priv->glsl_program = NULL;
current_vertex_color_clamp = priv->glsl_program ? priv->glsl_program->vertex_color_clamp : GL_FIXED_ONLY_ARB;
if (old_vertex_color_clamp != current_vertex_color_clamp) {
if (GL_SUPPORT(ARB_COLOR_BUFFER_FLOAT)) {
GL_EXTCALL(glClampColorARB(GL_CLAMP_VERTEX_COLOR_ARB, current_vertex_color_clamp));
checkGLcall("glClampColorARB");
} else {
FIXME("vertex color clamp needs to be changed, but extension not supported.\n");
}
}
program_id = priv->glsl_program ? priv->glsl_program->programId : 0;
if (program_id) TRACE("Using GLSL program %u\n", program_id);
GL_EXTCALL(glUseProgramObjectARB(program_id));
checkGLcall("glUseProgramObjectARB");
}
static void shader_glsl_select_depth_blt(IWineD3DDevice *iface, enum tex_types tex_type) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
struct shader_glsl_priv *priv = (struct shader_glsl_priv *) This->shader_priv;
GLhandleARB *blt_program = &priv->depth_blt_program[tex_type];
if (!*blt_program) {
GLhandleARB loc;
*blt_program = create_glsl_blt_shader(gl_info, tex_type);
loc = GL_EXTCALL(glGetUniformLocationARB(*blt_program, "sampler"));
GL_EXTCALL(glUseProgramObjectARB(*blt_program));
GL_EXTCALL(glUniform1iARB(loc, 0));
} else {
GL_EXTCALL(glUseProgramObjectARB(*blt_program));
}
}
static void shader_glsl_deselect_depth_blt(IWineD3DDevice *iface) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
struct shader_glsl_priv *priv = (struct shader_glsl_priv *) This->shader_priv;
GLhandleARB program_id;
program_id = priv->glsl_program ? priv->glsl_program->programId : 0;
if (program_id) TRACE("Using GLSL program %u\n", program_id);
GL_EXTCALL(glUseProgramObjectARB(program_id));
checkGLcall("glUseProgramObjectARB");
}
static void shader_glsl_cleanup(IWineD3DDevice *iface) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
GL_EXTCALL(glUseProgramObjectARB(0));
}
static void shader_glsl_destroy(IWineD3DBaseShader *iface) {
struct list *linked_programs;
IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *) iface;
IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *)This->baseShader.device;
struct shader_glsl_priv *priv = (struct shader_glsl_priv *)device->shader_priv;
WineD3D_GL_Info *gl_info = &device->adapter->gl_info;
/* Note: Do not use QueryInterface here to find out which shader type this is because this code
* can be called from IWineD3DBaseShader::Release
*/
char pshader = shader_is_pshader_version(This->baseShader.hex_version);
if(This->baseShader.prgId == 0) return;
linked_programs = &This->baseShader.linked_programs;
TRACE("Deleting linked programs\n");
if (linked_programs->next) {
struct glsl_shader_prog_link *entry, *entry2;
if(pshader) {
LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, linked_programs, struct glsl_shader_prog_link, pshader_entry) {
delete_glsl_program_entry(priv, gl_info, entry);
}
} else {
LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, linked_programs, struct glsl_shader_prog_link, vshader_entry) {
delete_glsl_program_entry(priv, gl_info, entry);
}
}
}
TRACE("Deleting shader object %u\n", This->baseShader.prgId);
GL_EXTCALL(glDeleteObjectARB(This->baseShader.prgId));
checkGLcall("glDeleteObjectARB");
This->baseShader.prgId = 0;
This->baseShader.is_compiled = FALSE;
}
static unsigned int glsl_program_key_hash(void *key) {
glsl_program_key_t *k = (glsl_program_key_t *)key;
unsigned int hash = k->vshader | k->pshader << 16;
hash += ~(hash << 15);
hash ^= (hash >> 10);
hash += (hash << 3);
hash ^= (hash >> 6);
hash += ~(hash << 11);
hash ^= (hash >> 16);
return hash;
}
static BOOL glsl_program_key_compare(void *keya, void *keyb) {
glsl_program_key_t *ka = (glsl_program_key_t *)keya;
glsl_program_key_t *kb = (glsl_program_key_t *)keyb;
return ka->vshader == kb->vshader && ka->pshader == kb->pshader;
}
static HRESULT shader_glsl_alloc(IWineD3DDevice *iface) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
struct shader_glsl_priv *priv = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct shader_glsl_priv));
priv->glsl_program_lookup = hash_table_create(glsl_program_key_hash, glsl_program_key_compare);
This->shader_priv = priv;
return WINED3D_OK;
}
static void shader_glsl_free(IWineD3DDevice *iface) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
struct shader_glsl_priv *priv = (struct shader_glsl_priv *)This->shader_priv;
int i;
for (i = 0; i < tex_type_count; ++i)
{
if (priv->depth_blt_program[i])
{
GL_EXTCALL(glDeleteObjectARB(priv->depth_blt_program[i]));
}
}
hash_table_destroy(priv->glsl_program_lookup, NULL, NULL);
HeapFree(GetProcessHeap(), 0, This->shader_priv);
This->shader_priv = NULL;
}
static BOOL shader_glsl_dirty_const(IWineD3DDevice *iface) {
/* TODO: GL_EXT_bindable_uniform can be used to share constants across shaders */
return FALSE;
}
static void shader_glsl_generate_pshader(IWineD3DPixelShader *iface, SHADER_BUFFER *buffer) {
IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
shader_reg_maps* reg_maps = &This->baseShader.reg_maps;
CONST DWORD *function = This->baseShader.function;
const char *fragcolor;
WineD3D_GL_Info *gl_info = &((IWineD3DDeviceImpl *)This->baseShader.device)->adapter->gl_info;
/* Create the hw GLSL shader object and assign it as the baseShader.prgId */
GLhandleARB shader_obj = GL_EXTCALL(glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB));
shader_addline(buffer, "#version 120\n");
if (GL_SUPPORT(ARB_DRAW_BUFFERS)) {
shader_addline(buffer, "#extension GL_ARB_draw_buffers : enable\n");
}
if (GL_SUPPORT(ARB_TEXTURE_RECTANGLE)) {
/* The spec says that it doesn't have to be explicitly enabled, but the nvidia
* drivers write a warning if we don't do so
*/
shader_addline(buffer, "#extension GL_ARB_texture_rectangle : enable\n");
}
/* Base Declarations */
shader_generate_glsl_declarations( (IWineD3DBaseShader*) This, reg_maps, buffer, &GLINFO_LOCATION);
/* Pack 3.0 inputs */
if (This->baseShader.hex_version >= WINED3DPS_VERSION(3,0)) {
if(((IWineD3DDeviceImpl *) This->baseShader.device)->strided_streams.u.s.position_transformed) {
This->vertexprocessing = pretransformed;
pshader_glsl_input_pack(buffer, This->semantics_in, iface);
} else if(!use_vs((IWineD3DDeviceImpl *) This->baseShader.device)) {
This->vertexprocessing = fixedfunction;
pshader_glsl_input_pack(buffer, This->semantics_in, iface);
} else {
This->vertexprocessing = vertexshader;
}
}
/* Base Shader Body */
shader_generate_main( (IWineD3DBaseShader*) This, buffer, reg_maps, function);
/* Pixel shaders < 2.0 place the resulting color in R0 implicitly */
if (This->baseShader.hex_version < WINED3DPS_VERSION(2,0)) {
/* Some older cards like GeforceFX ones don't support multiple buffers, so also not gl_FragData */
if(GL_SUPPORT(ARB_DRAW_BUFFERS))
shader_addline(buffer, "gl_FragData[0] = R0;\n");
else
shader_addline(buffer, "gl_FragColor = R0;\n");
}
if(GL_SUPPORT(ARB_DRAW_BUFFERS)) {
fragcolor = "gl_FragData[0]";
} else {
fragcolor = "gl_FragColor";
}
if(This->srgb_enabled) {
shader_addline(buffer, "tmp0.xyz = pow(%s.xyz, vec3(%f, %f, %f)) * vec3(%f, %f, %f) - vec3(%f, %f, %f);\n",
fragcolor, srgb_pow, srgb_pow, srgb_pow, srgb_mul_high, srgb_mul_high, srgb_mul_high,
srgb_sub_high, srgb_sub_high, srgb_sub_high);
shader_addline(buffer, "tmp1.xyz = %s.xyz * srgb_mul_low.xyz;\n", fragcolor);
shader_addline(buffer, "%s.x = %s.x < srgb_comparison.x ? tmp1.x : tmp0.x;\n", fragcolor, fragcolor);
shader_addline(buffer, "%s.y = %s.y < srgb_comparison.y ? tmp1.y : tmp0.y;\n", fragcolor, fragcolor);
shader_addline(buffer, "%s.z = %s.z < srgb_comparison.z ? tmp1.z : tmp0.z;\n", fragcolor, fragcolor);
shader_addline(buffer, "%s = clamp(%s, 0.0, 1.0);\n", fragcolor, fragcolor);
}
/* Pixel shader < 3.0 do not replace the fog stage.
* This implements linear fog computation and blending.
* TODO: non linear fog
* NOTE: gl_Fog.start and gl_Fog.end don't hold fog start s and end e but
* -1/(e-s) and e/(e-s) respectively.
*/
if(This->baseShader.hex_version < WINED3DPS_VERSION(3,0)) {
shader_addline(buffer, "float Fog = clamp(gl_FogFragCoord * gl_Fog.start + gl_Fog.end, 0.0, 1.0);\n");
shader_addline(buffer, "%s.xyz = mix(gl_Fog.color.xyz, %s.xyz, Fog);\n", fragcolor, fragcolor);
}
shader_addline(buffer, "}\n");
TRACE("Compiling shader object %u\n", shader_obj);
GL_EXTCALL(glShaderSourceARB(shader_obj, 1, (const char**)&buffer->buffer, NULL));
GL_EXTCALL(glCompileShaderARB(shader_obj));
print_glsl_info_log(&GLINFO_LOCATION, shader_obj);
/* Store the shader object */
This->baseShader.prgId = shader_obj;
}
static void shader_glsl_generate_vshader(IWineD3DVertexShader *iface, SHADER_BUFFER *buffer) {
IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
shader_reg_maps* reg_maps = &This->baseShader.reg_maps;
CONST DWORD *function = This->baseShader.function;
WineD3D_GL_Info *gl_info = &((IWineD3DDeviceImpl *)This->baseShader.device)->adapter->gl_info;
/* Create the hw GLSL shader program and assign it as the baseShader.prgId */
GLhandleARB shader_obj = GL_EXTCALL(glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB));
shader_addline(buffer, "#version 120\n");
/* Base Declarations */
shader_generate_glsl_declarations( (IWineD3DBaseShader*) This, reg_maps, buffer, &GLINFO_LOCATION);
/* Base Shader Body */
shader_generate_main( (IWineD3DBaseShader*) This, buffer, reg_maps, function);
/* Unpack 3.0 outputs */
if (This->baseShader.hex_version >= WINED3DVS_VERSION(3,0)) {
shader_addline(buffer, "order_ps_input(OUT);\n");
} else {
shader_addline(buffer, "order_ps_input();\n");
}
/* If this shader doesn't use fog copy the z coord to the fog coord so that we can use table fog */
if (!reg_maps->fog)
shader_addline(buffer, "gl_FogFragCoord = gl_Position.z;\n");
/* Write the final position.
*
* OpenGL coordinates specify the center of the pixel while d3d coords specify
* the corner. The offsets are stored in z and w in posFixup. posFixup.y contains
* 1.0 or -1.0 to turn the rendering upside down for offscreen rendering. PosFixup.x
* contains 1.0 to allow a mad.
*/
shader_addline(buffer, "gl_Position.y = gl_Position.y * posFixup.y;\n");
shader_addline(buffer, "gl_Position.xy += posFixup.zw * gl_Position.ww;\n");
/* Z coord [0;1]->[-1;1] mapping, see comment in transform_projection in state.c
*
* Basically we want (in homogeneous coordinates) z = z * 2 - 1. However, shaders are run
* before the homogeneous divide, so we have to take the w into account: z = ((z / w) * 2 - 1) * w,
* which is the same as z = z * 2 - w.
*/
shader_addline(buffer, "gl_Position.z = gl_Position.z * 2.0 - gl_Position.w;\n");
shader_addline(buffer, "}\n");
TRACE("Compiling shader object %u\n", shader_obj);
GL_EXTCALL(glShaderSourceARB(shader_obj, 1, (const char**)&buffer->buffer, NULL));
GL_EXTCALL(glCompileShaderARB(shader_obj));
print_glsl_info_log(&GLINFO_LOCATION, shader_obj);
/* Store the shader object */
This->baseShader.prgId = shader_obj;
}
static void shader_glsl_get_caps(WINED3DDEVTYPE devtype, WineD3D_GL_Info *gl_info, struct shader_caps *pCaps) {
/* Nvidia Geforce6/7 or Ati R4xx/R5xx cards with GLSL support, support VS 3.0 but older Nvidia/Ati
* models with GLSL support only support 2.0. In case of nvidia we can detect VS 2.0 support using
* vs_nv_version which is based on NV_vertex_program.
* For Ati cards there's no way using glsl (it abstracts the lowlevel info away) and also not
* using ARB_vertex_program. It is safe to assume that when a card supports pixel shader 2.0 it
* supports vertex shader 2.0 too and the way around. We can detect ps2.0 using the maximum number
* of native instructions, so use that here. For more info see the pixel shader versioning code below.
*/
if((GLINFO_LOCATION.vs_nv_version == VS_VERSION_20) || (GLINFO_LOCATION.ps_arb_max_instructions <= 512))
pCaps->VertexShaderVersion = WINED3DVS_VERSION(2,0);
else
pCaps->VertexShaderVersion = WINED3DVS_VERSION(3,0);
TRACE_(d3d_caps)("Hardware vertex shader version %d.%d enabled (GLSL)\n", (pCaps->VertexShaderVersion >> 8) & 0xff, pCaps->VertexShaderVersion & 0xff);
pCaps->MaxVertexShaderConst = GL_LIMITS(vshader_constantsF);
/* Older DX9-class videocards (GeforceFX / Radeon >9500/X*00) only support pixel shader 2.0/2.0a/2.0b.
* In OpenGL the extensions related to GLSL abstract lowlevel GL info away which is needed
* to distinguish between 2.0 and 3.0 (and 2.0a/2.0b). In case of Nvidia we use their fragment
* program extensions. On other hardware including ATI GL_ARB_fragment_program offers the info
* in max native instructions. Intel and others also offer the info in this extension but they
* don't support GLSL (at least on Windows).
*
* PS2.0 requires at least 96 instructions, 2.0a/2.0b go up to 512. Assume that if the number
* of instructions is 512 or less we have to do with ps2.0 hardware.
* NOTE: ps3.0 hardware requires 512 or more instructions but ati and nvidia offer 'enough' (1024 vs 4096) on their most basic ps3.0 hardware.
*/
if((GLINFO_LOCATION.ps_nv_version == PS_VERSION_20) || (GLINFO_LOCATION.ps_arb_max_instructions <= 512))
pCaps->PixelShaderVersion = WINED3DPS_VERSION(2,0);
else
pCaps->PixelShaderVersion = WINED3DPS_VERSION(3,0);
/* FIXME: The following line is card dependent. -8.0 to 8.0 is the
* Direct3D minimum requirement.
*
* Both GL_ARB_fragment_program and GLSL require a "maximum representable magnitude"
* of colors to be 2^10, and 2^32 for other floats. Should we use 1024 here?
*
* The problem is that the refrast clamps temporary results in the shader to
* [-MaxValue;+MaxValue]. If the card's max value is bigger than the one we advertize here,
* then applications may miss the clamping behavior. On the other hand, if it is smaller,
* the shader will generate incorrect results too. Unfortunately, GL deliberately doesn't
* offer a way to query this.
*/
pCaps->PixelShader1xMaxValue = 8.0;
TRACE_(d3d_caps)("Hardware pixel shader version %d.%d enabled (GLSL)\n", (pCaps->PixelShaderVersion >> 8) & 0xff, pCaps->PixelShaderVersion & 0xff);
}
static BOOL shader_glsl_conv_supported(WINED3DFORMAT fmt) {
TRACE("Checking shader format support for format %s:", debug_d3dformat(fmt));
switch(fmt) {
case WINED3DFMT_V8U8:
case WINED3DFMT_V16U16:
case WINED3DFMT_X8L8V8U8:
case WINED3DFMT_L6V5U5:
case WINED3DFMT_Q8W8V8U8:
case WINED3DFMT_ATI2N:
TRACE("[OK]\n");
return TRUE;
default:
TRACE("[FAILED\n");
return FALSE;
}
}
static const SHADER_HANDLER shader_glsl_instruction_handler_table[WINED3DSIH_TABLE_SIZE] =
{
/* WINED3DSIH_ABS */ shader_glsl_map2gl,
/* WINED3DSIH_ADD */ shader_glsl_arith,
/* WINED3DSIH_BEM */ pshader_glsl_bem,
/* WINED3DSIH_BREAK */ shader_glsl_break,
/* WINED3DSIH_BREAKC */ shader_glsl_breakc,
/* WINED3DSIH_BREAKP */ NULL,
/* WINED3DSIH_CALL */ shader_glsl_call,
/* WINED3DSIH_CALLNZ */ shader_glsl_callnz,
/* WINED3DSIH_CMP */ shader_glsl_cmp,
/* WINED3DSIH_CND */ shader_glsl_cnd,
/* WINED3DSIH_CRS */ shader_glsl_cross,
/* WINED3DSIH_DCL */ NULL,
/* WINED3DSIH_DEF */ NULL,
/* WINED3DSIH_DEFB */ NULL,
/* WINED3DSIH_DEFI */ NULL,
/* WINED3DSIH_DP2ADD */ pshader_glsl_dp2add,
/* WINED3DSIH_DP3 */ shader_glsl_dot,
/* WINED3DSIH_DP4 */ shader_glsl_dot,
/* WINED3DSIH_DST */ shader_glsl_dst,
/* WINED3DSIH_DSX */ shader_glsl_map2gl,
/* WINED3DSIH_DSY */ shader_glsl_map2gl,
/* WINED3DSIH_ELSE */ shader_glsl_else,
/* WINED3DSIH_ENDIF */ shader_glsl_end,
/* WINED3DSIH_ENDLOOP */ shader_glsl_end,
/* WINED3DSIH_ENDREP */ shader_glsl_end,
/* WINED3DSIH_EXP */ shader_glsl_map2gl,
/* WINED3DSIH_EXPP */ shader_glsl_expp,
/* WINED3DSIH_FRC */ shader_glsl_map2gl,
/* WINED3DSIH_IF */ shader_glsl_if,
/* WINED3DSIH_IFC */ shader_glsl_ifc,
/* WINED3DSIH_LABEL */ shader_glsl_label,
/* WINED3DSIH_LIT */ shader_glsl_lit,
/* WINED3DSIH_LOG */ shader_glsl_log,
/* WINED3DSIH_LOGP */ shader_glsl_log,
/* WINED3DSIH_LOOP */ shader_glsl_loop,
/* WINED3DSIH_LRP */ shader_glsl_lrp,
/* WINED3DSIH_M3x2 */ shader_glsl_mnxn,
/* WINED3DSIH_M3x3 */ shader_glsl_mnxn,
/* WINED3DSIH_M3x4 */ shader_glsl_mnxn,
/* WINED3DSIH_M4x3 */ shader_glsl_mnxn,
/* WINED3DSIH_M4x4 */ shader_glsl_mnxn,
/* WINED3DSIH_MAD */ shader_glsl_mad,
/* WINED3DSIH_MAX */ shader_glsl_map2gl,
/* WINED3DSIH_MIN */ shader_glsl_map2gl,
/* WINED3DSIH_MOV */ shader_glsl_mov,
/* WINED3DSIH_MOVA */ shader_glsl_mov,
/* WINED3DSIH_MUL */ shader_glsl_arith,
/* WINED3DSIH_NOP */ NULL,
/* WINED3DSIH_NRM */ shader_glsl_map2gl,
/* WINED3DSIH_PHASE */ NULL,
/* WINED3DSIH_POW */ shader_glsl_pow,
/* WINED3DSIH_RCP */ shader_glsl_rcp,
/* WINED3DSIH_REP */ shader_glsl_rep,
/* WINED3DSIH_RET */ NULL,
/* WINED3DSIH_RSQ */ shader_glsl_rsq,
/* WINED3DSIH_SETP */ NULL,
/* WINED3DSIH_SGE */ shader_glsl_compare,
/* WINED3DSIH_SGN */ shader_glsl_map2gl,
/* WINED3DSIH_SINCOS */ shader_glsl_sincos,
/* WINED3DSIH_SLT */ shader_glsl_compare,
/* WINED3DSIH_SUB */ shader_glsl_arith,
/* WINED3DSIH_TEX */ pshader_glsl_tex,
/* WINED3DSIH_TEXBEM */ pshader_glsl_texbem,
/* WINED3DSIH_TEXBEML */ pshader_glsl_texbem,
/* WINED3DSIH_TEXCOORD */ pshader_glsl_texcoord,
/* WINED3DSIH_TEXDEPTH */ pshader_glsl_texdepth,
/* WINED3DSIH_TEXDP3 */ pshader_glsl_texdp3,
/* WINED3DSIH_TEXDP3TEX */ pshader_glsl_texdp3tex,
/* WINED3DSIH_TEXKILL */ pshader_glsl_texkill,
/* WINED3DSIH_TEXLDD */ NULL,
/* WINED3DSIH_TEXLDL */ shader_glsl_texldl,
/* WINED3DSIH_TEXM3x2DEPTH */ pshader_glsl_texm3x2depth,
/* WINED3DSIH_TEXM3x2PAD */ pshader_glsl_texm3x2pad,
/* WINED3DSIH_TEXM3x2TEX */ pshader_glsl_texm3x2tex,
/* WINED3DSIH_TEXM3x3 */ pshader_glsl_texm3x3,
/* WINED3DSIH_TEXM3x3DIFF */ NULL,
/* WINED3DSIH_TEXM3x3PAD */ pshader_glsl_texm3x3pad,
/* WINED3DSIH_TEXM3x3SPEC */ pshader_glsl_texm3x3spec,
/* WINED3DSIH_TEXM3x3TEX */ pshader_glsl_texm3x3tex,
/* WINED3DSIH_TEXM3x3VSPEC */ pshader_glsl_texm3x3vspec,
/* WINED3DSIH_TEXREG2AR */ pshader_glsl_texreg2ar,
/* WINED3DSIH_TEXREG2GB */ pshader_glsl_texreg2gb,
/* WINED3DSIH_TEXREG2RGB */ pshader_glsl_texreg2rgb,
};
const shader_backend_t glsl_shader_backend = {
shader_glsl_instruction_handler_table,
shader_glsl_select,
shader_glsl_select_depth_blt,
shader_glsl_deselect_depth_blt,
shader_glsl_load_constants,
shader_glsl_cleanup,
shader_glsl_color_correction,
shader_glsl_destroy,
shader_glsl_alloc,
shader_glsl_free,
shader_glsl_dirty_const,
shader_glsl_generate_pshader,
shader_glsl_generate_vshader,
shader_glsl_get_caps,
shader_glsl_conv_supported,
};
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