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ppsspp/GPU/GLES/ShaderManager.cpp
Unknown W. Brackets 94c1271761 Add an experiment with using a texture for tests. 
Using an option for now so it's easy to test, if it works well we can
maybe remove the option.
2014-09-07 10:04:57 -07:00

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// Copyright (c) 2012- PPSSPP Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program 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 General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#ifdef _WIN32
#define SHADERLOG
#endif
#ifdef SHADERLOG
#include "Common/CommonWindows.h"
#endif
#include <map>
#include "base/logging.h"
#include "math/math_util.h"
#include "gfx_es2/gl_state.h"
#include "math/lin/matrix4x4.h"
#include "Core/Config.h"
#include "Core/Reporting.h"
#include "GPU/Math3D.h"
#include "GPU/GPUState.h"
#include "GPU/ge_constants.h"
#include "GPU/GLES/ShaderManager.h"
#include "GPU/GLES/TransformPipeline.h"
#include "UI/OnScreenDisplay.h"
#include "Framebuffer.h"
Shader::Shader(const char *code, uint32_t shaderType, bool useHWTransform) : failed_(false), useHWTransform_(useHWTransform) {
source_ = code;
#ifdef SHADERLOG
OutputDebugStringUTF8(code);
#endif
shader = glCreateShader(shaderType);
glShaderSource(shader, 1, &code, 0);
glCompileShader(shader);
GLint success;
glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
if (!success) {
#define MAX_INFO_LOG_SIZE 2048
GLchar infoLog[MAX_INFO_LOG_SIZE];
GLsizei len;
glGetShaderInfoLog(shader, MAX_INFO_LOG_SIZE, &len, infoLog);
infoLog[len] = '\0';
#ifdef ANDROID
ELOG("Error in shader compilation! %s\n", infoLog);
ELOG("Shader source:\n%s\n", (const char *)code);
#endif
ERROR_LOG(G3D, "Error in shader compilation!\n");
ERROR_LOG(G3D, "Info log: %s\n", infoLog);
ERROR_LOG(G3D, "Shader source:\n%s\n", (const char *)code);
Reporting::ReportMessage("Error in shader compilation: info: %s / code: %s", infoLog, (const char *)code);
#ifdef SHADERLOG
OutputDebugStringUTF8(infoLog);
#endif
failed_ = true;
shader = 0;
} else {
DEBUG_LOG(G3D, "Compiled shader:\n%s\n", (const char *)code);
}
}
Shader::~Shader() {
if (shader)
glDeleteShader(shader);
}
LinkedShader::LinkedShader(Shader *vs, Shader *fs, u32 vertType, bool useHWTransform, LinkedShader *previous)
: useHWTransform_(useHWTransform), program(0), dirtyUniforms(0) {
program = glCreateProgram();
vs_ = vs;
glAttachShader(program, vs->shader);
glAttachShader(program, fs->shader);
// Bind attribute locations to fixed locations so that they're
// the same in all shaders. We use this later to minimize the calls to
// glEnableVertexAttribArray and glDisableVertexAttribArray.
glBindAttribLocation(program, ATTR_POSITION, "position");
glBindAttribLocation(program, ATTR_TEXCOORD, "texcoord");
glBindAttribLocation(program, ATTR_NORMAL, "normal");
glBindAttribLocation(program, ATTR_W1, "w1");
glBindAttribLocation(program, ATTR_W2, "w2");
glBindAttribLocation(program, ATTR_COLOR0, "color0");
glBindAttribLocation(program, ATTR_COLOR1, "color1");
#ifndef USING_GLES2
if (gl_extensions.ARB_blend_func_extended) {
// Dual source alpha
glBindFragDataLocationIndexed(program, 0, 0, "fragColor0");
glBindFragDataLocationIndexed(program, 0, 1, "fragColor1");
} else if (gl_extensions.VersionGEThan(3, 3, 0)) {
glBindFragDataLocation(program, 0, "fragColor0");
}
#endif
glLinkProgram(program);
GLint linkStatus = GL_FALSE;
glGetProgramiv(program, GL_LINK_STATUS, &linkStatus);
if (linkStatus != GL_TRUE) {
GLint bufLength = 0;
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &bufLength);
if (bufLength) {
char* buf = new char[bufLength];
glGetProgramInfoLog(program, bufLength, NULL, buf);
#ifdef ANDROID
ELOG("Could not link program:\n %s", buf);
#endif
ERROR_LOG(G3D, "Could not link program:\n %s", buf);
ERROR_LOG(G3D, "VS:\n%s", vs->source().c_str());
ERROR_LOG(G3D, "FS:\n%s", fs->source().c_str());
Reporting::ReportMessage("Error in shader program link: info: %s / fs: %s / vs: %s", buf, fs->source().c_str(), vs->source().c_str());
#ifdef SHADERLOG
OutputDebugStringUTF8(buf);
OutputDebugStringUTF8(vs->source().c_str());
OutputDebugStringUTF8(fs->source().c_str());
#endif
delete [] buf; // we're dead!
}
// Prevent a buffer overflow.
numBones = 0;
return;
}
INFO_LOG(G3D, "Linked shader: vs %i fs %i", (int)vs->shader, (int)fs->shader);
u_tex = glGetUniformLocation(program, "tex");
u_proj = glGetUniformLocation(program, "u_proj");
u_proj_through = glGetUniformLocation(program, "u_proj_through");
u_texenv = glGetUniformLocation(program, "u_texenv");
u_fogcolor = glGetUniformLocation(program, "u_fogcolor");
u_fogcoef = glGetUniformLocation(program, "u_fogcoef");
u_alphacolorref = glGetUniformLocation(program, "u_alphacolorref");
u_alphacolormask = glGetUniformLocation(program, "u_alphacolormask");
u_stencilReplaceValue = glGetUniformLocation(program, "u_stencilReplaceValue");
u_testtex = glGetUniformLocation(program, "testtex");
u_fbotex = glGetUniformLocation(program, "fbotex");
u_blendFixA = glGetUniformLocation(program, "u_blendFixA");
u_blendFixB = glGetUniformLocation(program, "u_blendFixB");
u_fbotexSize = glGetUniformLocation(program, "u_fbotexSize");
// Transform
u_view = glGetUniformLocation(program, "u_view");
u_world = glGetUniformLocation(program, "u_world");
u_texmtx = glGetUniformLocation(program, "u_texmtx");
if (vertTypeGetWeightMask(vertType) != GE_VTYPE_WEIGHT_NONE)
numBones = TranslateNumBones(vertTypeGetNumBoneWeights(vertType));
else
numBones = 0;
#ifdef USE_BONE_ARRAY
u_bone = glGetUniformLocation(program, "u_bone");
#else
for (int i = 0; i < 8; i++) {
char name[10];
sprintf(name, "u_bone%i", i);
u_bone[i] = glGetUniformLocation(program, name);
}
#endif
// Lighting, texturing
u_ambient = glGetUniformLocation(program, "u_ambient");
u_matambientalpha = glGetUniformLocation(program, "u_matambientalpha");
u_matdiffuse = glGetUniformLocation(program, "u_matdiffuse");
u_matspecular = glGetUniformLocation(program, "u_matspecular");
u_matemissive = glGetUniformLocation(program, "u_matemissive");
u_uvscaleoffset = glGetUniformLocation(program, "u_uvscaleoffset");
u_texclamp = glGetUniformLocation(program, "u_texclamp");
u_texclampoff = glGetUniformLocation(program, "u_texclampoff");
for (int i = 0; i < 4; i++) {
char temp[64];
sprintf(temp, "u_lightpos%i", i);
u_lightpos[i] = glGetUniformLocation(program, temp);
sprintf(temp, "u_lightdir%i", i);
u_lightdir[i] = glGetUniformLocation(program, temp);
sprintf(temp, "u_lightatt%i", i);
u_lightatt[i] = glGetUniformLocation(program, temp);
sprintf(temp, "u_lightangle%i", i);
u_lightangle[i] = glGetUniformLocation(program, temp);
sprintf(temp, "u_lightspotCoef%i", i);
u_lightspotCoef[i] = glGetUniformLocation(program, temp);
sprintf(temp, "u_lightambient%i", i);
u_lightambient[i] = glGetUniformLocation(program, temp);
sprintf(temp, "u_lightdiffuse%i", i);
u_lightdiffuse[i] = glGetUniformLocation(program, temp);
sprintf(temp, "u_lightspecular%i", i);
u_lightspecular[i] = glGetUniformLocation(program, temp);
}
attrMask = 0;
if (-1 != glGetAttribLocation(program, "position")) attrMask |= 1 << ATTR_POSITION;
if (-1 != glGetAttribLocation(program, "texcoord")) attrMask |= 1 << ATTR_TEXCOORD;
if (-1 != glGetAttribLocation(program, "normal")) attrMask |= 1 << ATTR_NORMAL;
if (-1 != glGetAttribLocation(program, "w1")) attrMask |= 1 << ATTR_W1;
if (-1 != glGetAttribLocation(program, "w2")) attrMask |= 1 << ATTR_W2;
if (-1 != glGetAttribLocation(program, "color0")) attrMask |= 1 << ATTR_COLOR0;
if (-1 != glGetAttribLocation(program, "color1")) attrMask |= 1 << ATTR_COLOR1;
availableUniforms = 0;
if (u_proj != -1) availableUniforms |= DIRTY_PROJMATRIX;
if (u_proj_through != -1) availableUniforms |= DIRTY_PROJTHROUGHMATRIX;
if (u_texenv != -1) availableUniforms |= DIRTY_TEXENV;
if (u_alphacolorref != -1) availableUniforms |= DIRTY_ALPHACOLORREF;
if (u_alphacolormask != -1) availableUniforms |= DIRTY_ALPHACOLORMASK;
if (u_fogcolor != -1) availableUniforms |= DIRTY_FOGCOLOR;
if (u_fogcoef != -1) availableUniforms |= DIRTY_FOGCOEF;
if (u_texenv != -1) availableUniforms |= DIRTY_TEXENV;
if (u_uvscaleoffset != -1) availableUniforms |= DIRTY_UVSCALEOFFSET;
if (u_texclamp != -1) availableUniforms |= DIRTY_TEXCLAMP;
if (u_world != -1) availableUniforms |= DIRTY_WORLDMATRIX;
if (u_view != -1) availableUniforms |= DIRTY_VIEWMATRIX;
if (u_texmtx != -1) availableUniforms |= DIRTY_TEXMATRIX;
if (u_stencilReplaceValue != -1) availableUniforms |= DIRTY_STENCILREPLACEVALUE;
if (u_blendFixA != -1 || u_blendFixB != -1 || u_fbotexSize != -1) availableUniforms |= DIRTY_SHADERBLEND;
// Looping up to numBones lets us avoid checking u_bone[i]
#ifdef USE_BONE_ARRAY
if (u_bone != -1) {
for (int i = 0; i < numBones; i++) {
availableUniforms |= DIRTY_BONEMATRIX0 << i;
}
}
#else
for (int i = 0; i < numBones; i++) {
if (u_bone[i] != -1)
availableUniforms |= DIRTY_BONEMATRIX0 << i;
}
#endif
if (u_ambient != -1) availableUniforms |= DIRTY_AMBIENT;
if (u_matambientalpha != -1) availableUniforms |= DIRTY_MATAMBIENTALPHA;
if (u_matdiffuse != -1) availableUniforms |= DIRTY_MATDIFFUSE;
if (u_matemissive != -1) availableUniforms |= DIRTY_MATEMISSIVE;
if (u_matspecular != -1) availableUniforms |= DIRTY_MATSPECULAR;
for (int i = 0; i < 4; i++) {
if (u_lightdir[i] != -1 ||
u_lightspecular[i] != -1 ||
u_lightpos[i] != -1)
availableUniforms |= DIRTY_LIGHT0 << i;
}
glUseProgram(program);
// Default uniform values
glUniform1i(u_tex, 0);
glUniform1i(u_fbotex, 1);
glUniform1i(u_testtex, 2);
// The rest, use the "dirty" mechanism.
dirtyUniforms = DIRTY_ALL;
use(vertType, previous);
}
LinkedShader::~LinkedShader() {
// Shaders are automatically detached by glDeleteProgram.
glDeleteProgram(program);
}
// Utility
static void SetColorUniform3(int uniform, u32 color) {
const float col[3] = {
((color & 0xFF)) / 255.0f,
((color & 0xFF00) >> 8) / 255.0f,
((color & 0xFF0000) >> 16) / 255.0f
};
glUniform3fv(uniform, 1, col);
}
static void SetColorUniform3Alpha(int uniform, u32 color, u8 alpha) {
const float col[4] = {
((color & 0xFF)) / 255.0f,
((color & 0xFF00) >> 8) / 255.0f,
((color & 0xFF0000) >> 16) / 255.0f,
alpha/255.0f
};
glUniform4fv(uniform, 1, col);
}
// This passes colors unscaled (e.g. 0 - 255 not 0 - 1.)
static void SetColorUniform3Alpha255(int uniform, u32 color, u8 alpha) {
if (gl_extensions.gpuVendor == GPU_VENDOR_POWERVR) {
const float col[4] = {
(float)((color & 0xFF) >> 0) * (1.0f / 255.0f),
(float)((color & 0xFF00) >> 8) * (1.0f / 255.0f),
(float)((color & 0xFF0000) >> 16) * (1.0f / 255.0f),
(float)alpha * (1.0f / 255.0f)
};
glUniform4fv(uniform, 1, col);
} else {
const float col[4] = {
(float)((color & 0xFF) >> 0),
(float)((color & 0xFF00) >> 8),
(float)((color & 0xFF0000) >> 16),
(float)alpha
};
glUniform4fv(uniform, 1, col);
}
}
static void SetColorUniform3iAlpha(int uniform, u32 color, u8 alpha) {
const int col[4] = {
(int)((color & 0xFF) >> 0),
(int)((color & 0xFF00) >> 8),
(int)((color & 0xFF0000) >> 16),
(int)alpha,
};
glUniform4iv(uniform, 1, col);
}
static void SetColorUniform3ExtraFloat(int uniform, u32 color, float extra) {
const float col[4] = {
((color & 0xFF)) / 255.0f,
((color & 0xFF00) >> 8) / 255.0f,
((color & 0xFF0000) >> 16) / 255.0f,
extra
};
glUniform4fv(uniform, 1, col);
}
static void SetFloat24Uniform3(int uniform, const u32 data[3]) {
const u32 col[3] = {
data[0] << 8, data[1] << 8, data[2] << 8
};
glUniform3fv(uniform, 1, (const GLfloat *)&col[0]);
}
static void SetMatrix4x3(int uniform, const float *m4x3) {
float m4x4[16];
ConvertMatrix4x3To4x4(m4x4, m4x3);
glUniformMatrix4fv(uniform, 1, GL_FALSE, m4x4);
}
void LinkedShader::use(u32 vertType, LinkedShader *previous) {
glUseProgram(program);
UpdateUniforms(vertType);
int enable, disable;
if (previous) {
enable = attrMask & ~previous->attrMask;
disable = (~attrMask) & previous->attrMask;
} else {
enable = attrMask;
disable = ~attrMask;
}
for (int i = 0; i < ATTR_COUNT; i++) {
if (enable & (1 << i))
glEnableVertexAttribArray(i);
else if (disable & (1 << i))
glDisableVertexAttribArray(i);
}
}
void LinkedShader::stop() {
for (int i = 0; i < ATTR_COUNT; i++) {
if (attrMask & (1 << i))
glDisableVertexAttribArray(i);
}
}
void LinkedShader::UpdateUniforms(u32 vertType) {
u32 dirty = dirtyUniforms & availableUniforms;
dirtyUniforms = 0;
if (!dirty)
return;
// Update any dirty uniforms before we draw
if (dirty & DIRTY_PROJMATRIX) {
float flippedMatrix[16];
memcpy(flippedMatrix, gstate.projMatrix, 16 * sizeof(float));
if (gstate_c.vpHeight < 0) {
flippedMatrix[5] = -flippedMatrix[5];
flippedMatrix[13] = -flippedMatrix[13];
}
if (gstate_c.vpWidth < 0) {
flippedMatrix[0] = -flippedMatrix[0];
flippedMatrix[12] = -flippedMatrix[12];
}
glUniformMatrix4fv(u_proj, 1, GL_FALSE, flippedMatrix);
}
if (dirty & DIRTY_PROJTHROUGHMATRIX)
{
Matrix4x4 proj_through;
proj_through.setOrtho(0.0f, gstate_c.curRTWidth, gstate_c.curRTHeight, 0, 0, 1);
glUniformMatrix4fv(u_proj_through, 1, GL_FALSE, proj_through.getReadPtr());
}
if (dirty & DIRTY_TEXENV) {
SetColorUniform3(u_texenv, gstate.texenvcolor);
}
if (dirty & DIRTY_ALPHACOLORREF) {
SetColorUniform3Alpha255(u_alphacolorref, gstate.getColorTestRef(), gstate.getAlphaTestRef() & gstate.getAlphaTestMask());
}
if (dirty & DIRTY_ALPHACOLORMASK) {
SetColorUniform3iAlpha(u_alphacolormask, gstate.colortestmask, gstate.getAlphaTestMask());
}
if (dirty & DIRTY_FOGCOLOR) {
SetColorUniform3(u_fogcolor, gstate.fogcolor);
}
if (dirty & DIRTY_FOGCOEF) {
float fogcoef[2] = {
getFloat24(gstate.fog1),
getFloat24(gstate.fog2),
};
if (my_isinf(fogcoef[1])) {
// not really sure what a sensible value might be.
fogcoef[1] = fogcoef[1] < 0.0f ? -10000.0f : 10000.0f;
} else if (my_isnan(fogcoef[1])) {
// Workaround for https://github.com/hrydgard/ppsspp/issues/5384#issuecomment-38365988
// Just put the fog far away at a large finite distance.
// Infinities and NaNs are rather unpredictable in shaders on many GPUs
// so it's best to just make it a sane calculation.
fogcoef[0] = 100000.0f;
fogcoef[1] = 1.0f;
}
#ifndef MOBILE_DEVICE
else if (my_isnanorinf(fogcoef[1]) || my_isnanorinf(fogcoef[0])) {
ERROR_LOG_REPORT_ONCE(fognan, G3D, "Unhandled fog NaN/INF combo: %f %f", fogcoef[0], fogcoef[1]);
}
#endif
glUniform2fv(u_fogcoef, 1, fogcoef);
}
// Texturing
// If this dirty check is changed to true, Frontier Gate Boost works in texcoord speedhack mode.
// This means that it's not a flushing issue.
// It uses GE_TEXMAP_TEXTURE_MATRIX with GE_PROJMAP_UV a lot.
// Can't figure out why it doesn't dirty at the right points though...
if (dirty & DIRTY_UVSCALEOFFSET) {
const float invW = 1.0f / (float)gstate_c.curTextureWidth;
const float invH = 1.0f / (float)gstate_c.curTextureHeight;
const int w = gstate.getTextureWidth(0);
const int h = gstate.getTextureHeight(0);
const float widthFactor = (float)w * invW;
const float heightFactor = (float)h * invH;
static const float rescale[4] = {1.0f, 2*127.5f/128.f, 2*32767.5f/32768.f, 1.0f};
const float factor = rescale[(vertType & GE_VTYPE_TC_MASK) >> GE_VTYPE_TC_SHIFT];
float uvscaleoff[4];
switch (gstate.getUVGenMode()) {
case GE_TEXMAP_TEXTURE_COORDS:
// Not sure what GE_TEXMAP_UNKNOWN is, but seen in Riviera. Treating the same as GE_TEXMAP_TEXTURE_COORDS works.
case GE_TEXMAP_UNKNOWN:
if (g_Config.bPrescaleUV) {
// Shouldn't even get here as we won't use the uniform in the shader.
// We are here but are prescaling UV in the decoder? Let's do the same as in the other case
// except consider *Scale and *Off to be 1 and 0.
uvscaleoff[0] = widthFactor;
uvscaleoff[1] = heightFactor;
uvscaleoff[2] = 0.0f;
uvscaleoff[3] = 0.0f;
} else {
uvscaleoff[0] = gstate_c.uv.uScale * factor * widthFactor;
uvscaleoff[1] = gstate_c.uv.vScale * factor * heightFactor;
uvscaleoff[2] = gstate_c.uv.uOff * widthFactor;
uvscaleoff[3] = gstate_c.uv.vOff * heightFactor;
}
break;
// These two work the same whether or not we prescale UV.
case GE_TEXMAP_TEXTURE_MATRIX:
// We cannot bake the UV coord scale factor in here, as we apply a matrix multiplication
// before this is applied, and the matrix multiplication may contain translation. In this case
// the translation will be scaled which breaks faces in Hexyz Force for example.
// So I've gone back to applying the scale factor in the shader.
uvscaleoff[0] = widthFactor;
uvscaleoff[1] = heightFactor;
uvscaleoff[2] = 0.0f;
uvscaleoff[3] = 0.0f;
break;
case GE_TEXMAP_ENVIRONMENT_MAP:
// In this mode we only use uvscaleoff to scale to the texture size.
uvscaleoff[0] = widthFactor;
uvscaleoff[1] = heightFactor;
uvscaleoff[2] = 0.0f;
uvscaleoff[3] = 0.0f;
break;
default:
ERROR_LOG_REPORT(G3D, "Unexpected UV gen mode: %d", gstate.getUVGenMode());
}
glUniform4fv(u_uvscaleoffset, 1, uvscaleoff);
}
if (dirty & DIRTY_TEXCLAMP) {
const float invW = 1.0f / (float)gstate_c.curTextureWidth;
const float invH = 1.0f / (float)gstate_c.curTextureHeight;
const int w = gstate.getTextureWidth(0);
const int h = gstate.getTextureHeight(0);
const float widthFactor = (float)w * invW;
const float heightFactor = (float)h * invH;
// First wrap xy, then half texel xy (for clamp.)
const float texclamp[4] = {
widthFactor,
heightFactor,
invW * 0.5f,
invH * 0.5f,
};
const float texclampoff[2] = {
gstate_c.curTextureXOffset * invW,
gstate_c.curTextureYOffset * invH,
};
glUniform4fv(u_texclamp, 1, texclamp);
if (u_texclampoff != -1) {
glUniform2fv(u_texclampoff, 1, texclampoff);
}
}
// Transform
if (dirty & DIRTY_WORLDMATRIX) {
SetMatrix4x3(u_world, gstate.worldMatrix);
}
if (dirty & DIRTY_VIEWMATRIX) {
SetMatrix4x3(u_view, gstate.viewMatrix);
}
if (dirty & DIRTY_TEXMATRIX) {
SetMatrix4x3(u_texmtx, gstate.tgenMatrix);
}
if (dirty & DIRTY_STENCILREPLACEVALUE) {
glUniform1f(u_stencilReplaceValue, (float)gstate.getStencilTestRef() * (1.0f / 255.0f));
}
// TODO: Could even set all bones in one go if they're all dirty.
#ifdef USE_BONE_ARRAY
if (u_bone != -1) {
float allBones[8 * 16];
bool allDirty = true;
for (int i = 0; i < numBones; i++) {
if (dirty & (DIRTY_BONEMATRIX0 << i)) {
ConvertMatrix4x3To4x4(allBones + 16 * i, gstate.boneMatrix + 12 * i);
} else {
allDirty = false;
}
}
if (allDirty) {
// Set them all with one call
glUniformMatrix4fv(u_bone, numBones, GL_FALSE, allBones);
} else {
// Set them one by one. Could try to coalesce two in a row etc but too lazy.
for (int i = 0; i < numBones; i++) {
if (dirty & (DIRTY_BONEMATRIX0 << i)) {
glUniformMatrix4fv(u_bone + i, 1, GL_FALSE, allBones + 16 * i);
}
}
}
}
#else
float bonetemp[16];
for (int i = 0; i < numBones; i++) {
if (dirty & (DIRTY_BONEMATRIX0 << i)) {
ConvertMatrix4x3To4x4(bonetemp, gstate.boneMatrix + 12 * i);
glUniformMatrix4fv(u_bone[i], 1, GL_FALSE, bonetemp);
}
}
#endif
if (dirty & DIRTY_SHADERBLEND) {
if (u_blendFixA != -1) {
SetColorUniform3(u_blendFixA, gstate.getFixA());
}
if (u_blendFixB != -1) {
SetColorUniform3(u_blendFixB, gstate.getFixB());
}
const float fbotexSize[2] = {
1.0f / (float)gstate_c.curRTRenderWidth,
1.0f / (float)gstate_c.curRTRenderHeight,
};
if (u_fbotexSize != -1) {
glUniform2fv(u_fbotexSize, 1, fbotexSize);
}
}
// Lighting
if (dirty & DIRTY_AMBIENT) {
SetColorUniform3Alpha(u_ambient, gstate.ambientcolor, gstate.getAmbientA());
}
if (dirty & DIRTY_MATAMBIENTALPHA) {
SetColorUniform3Alpha(u_matambientalpha, gstate.materialambient, gstate.getMaterialAmbientA());
}
if (dirty & DIRTY_MATDIFFUSE) {
SetColorUniform3(u_matdiffuse, gstate.materialdiffuse);
}
if (dirty & DIRTY_MATEMISSIVE) {
SetColorUniform3(u_matemissive, gstate.materialemissive);
}
if (dirty & DIRTY_MATSPECULAR) {
SetColorUniform3ExtraFloat(u_matspecular, gstate.materialspecular, getFloat24(gstate.materialspecularcoef));
}
for (int i = 0; i < 4; i++) {
if (dirty & (DIRTY_LIGHT0 << i)) {
if (u_lightpos[i] != -1) {
if (gstate.isDirectionalLight(i)) {
// Prenormalize
float x = getFloat24(gstate.lpos[i * 3 + 0]);
float y = getFloat24(gstate.lpos[i * 3 + 1]);
float z = getFloat24(gstate.lpos[i * 3 + 2]);
float len = sqrtf(x*x + y*y + z*z);
if (len == 0.0f)
len = 1.0f;
else
len = 1.0f / len;
float vec[3] = { x * len, y * len, z * len };
glUniform3fv(u_lightpos[i], 1, vec);
} else {
SetFloat24Uniform3(u_lightpos[i], &gstate.lpos[i * 3]);
}
}
if (u_lightdir[i] != -1) SetFloat24Uniform3(u_lightdir[i], &gstate.ldir[i * 3]);
if (u_lightatt[i] != -1) SetFloat24Uniform3(u_lightatt[i], &gstate.latt[i * 3]);
if (u_lightangle[i] != -1) glUniform1f(u_lightangle[i], getFloat24(gstate.lcutoff[i]));
if (u_lightspotCoef[i] != -1) glUniform1f(u_lightspotCoef[i], getFloat24(gstate.lconv[i]));
if (u_lightambient[i] != -1) SetColorUniform3(u_lightambient[i], gstate.lcolor[i * 3]);
if (u_lightdiffuse[i] != -1) SetColorUniform3(u_lightdiffuse[i], gstate.lcolor[i * 3 + 1]);
if (u_lightspecular[i] != -1) SetColorUniform3(u_lightspecular[i], gstate.lcolor[i * 3 + 2]);
}
}
}
ShaderManager::ShaderManager() : lastShader_(NULL), globalDirty_(0xFFFFFFFF), shaderSwitchDirty_(0) {
codeBuffer_ = new char[16384];
}
ShaderManager::~ShaderManager() {
delete [] codeBuffer_;
}
void ShaderManager::Clear() {
DirtyLastShader();
for (auto iter = linkedShaderCache_.begin(); iter != linkedShaderCache_.end(); ++iter) {
delete iter->ls;
}
for (auto iter = fsCache_.begin(); iter != fsCache_.end(); ++iter) {
delete iter->second;
}
for (auto iter = vsCache_.begin(); iter != vsCache_.end(); ++iter) {
delete iter->second;
}
linkedShaderCache_.clear();
fsCache_.clear();
vsCache_.clear();
globalDirty_ = 0xFFFFFFFF;
lastFSID_.clear();
lastVSID_.clear();
DirtyShader();
}
void ShaderManager::ClearCache(bool deleteThem) {
Clear();
}
void ShaderManager::DirtyShader() {
// Forget the last shader ID
lastFSID_.clear();
lastVSID_.clear();
DirtyLastShader();
globalDirty_ = 0xFFFFFFFF;
shaderSwitchDirty_ = 0;
}
void ShaderManager::DirtyLastShader() { // disables vertex arrays
if (lastShader_)
lastShader_->stop();
lastShader_ = 0;
}
Shader *ShaderManager::ApplyVertexShader(int prim, u32 vertType) {
// This doesn't work - we miss some events that really do need to dirty the prescale.
// like changing the texmapmode.
// if (g_Config.bPrescaleUV)
// globalDirty_ &= ~DIRTY_UVSCALEOFFSET;
if (globalDirty_) {
if (lastShader_)
lastShader_->dirtyUniforms |= globalDirty_;
shaderSwitchDirty_ |= globalDirty_;
globalDirty_ = 0;
}
bool useHWTransform = CanUseHardwareTransform(prim);
VertexShaderID VSID;
ComputeVertexShaderID(&VSID, vertType, prim, useHWTransform);
// Just update uniforms if this is the same shader as last time.
if (lastShader_ != 0 && VSID == lastVSID_) {
lastVShaderSame_ = true;
return lastShader_->vs_; // Already all set.
} else {
lastVShaderSame_ = false;
}
lastVSID_ = VSID;
VSCache::iterator vsIter = vsCache_.find(VSID);
Shader *vs;
if (vsIter == vsCache_.end()) {
// Vertex shader not in cache. Let's compile it.
GenerateVertexShader(prim, vertType, codeBuffer_, useHWTransform);
vs = new Shader(codeBuffer_, GL_VERTEX_SHADER, useHWTransform);
if (vs->Failed()) {
ERROR_LOG(G3D, "Shader compilation failed, falling back to software transform");
osm.Show("hardware transform error - falling back to software", 2.5f, 0xFF3030FF, -1, true);
delete vs;
// TODO: Look for existing shader with the appropriate ID, use that instead of generating a new one - however, need to make sure
// that that shader ID is not used when computing the linked shader ID below, because then IDs won't match
// next time and we'll do this over and over...
// Can still work with software transform.
GenerateVertexShader(prim, vertType, codeBuffer_, false);
vs = new Shader(codeBuffer_, GL_VERTEX_SHADER, false);
}
vsCache_[VSID] = vs;
} else {
vs = vsIter->second;
}
return vs;
}
LinkedShader *ShaderManager::ApplyFragmentShader(Shader *vs, int prim, u32 vertType) {
FragmentShaderID FSID;
ComputeFragmentShaderID(&FSID);
if (lastVShaderSame_ && FSID == lastFSID_) {
lastShader_->UpdateUniforms(vertType);
return lastShader_;
}
lastFSID_ = FSID;
FSCache::iterator fsIter = fsCache_.find(FSID);
Shader *fs;
if (fsIter == fsCache_.end()) {
// Fragment shader not in cache. Let's compile it.
GenerateFragmentShader(codeBuffer_);
fs = new Shader(codeBuffer_, GL_FRAGMENT_SHADER, vs->UseHWTransform());
fsCache_[FSID] = fs;
} else {
fs = fsIter->second;
}
// Okay, we have both shaders. Let's see if there's a linked one.
LinkedShader *ls = NULL;
for (auto iter = linkedShaderCache_.begin(); iter != linkedShaderCache_.end(); ++iter) {
// Deferred dirtying! Let's see if we can make this even more clever later.
iter->ls->dirtyUniforms |= shaderSwitchDirty_;
if (iter->vs == vs && iter->fs == fs) {
ls = iter->ls;
}
}
shaderSwitchDirty_ = 0;
if (ls == NULL) {
ls = new LinkedShader(vs, fs, vertType, vs->UseHWTransform(), lastShader_); // This does "use" automatically
const LinkedShaderCacheEntry entry(vs, fs, ls);
linkedShaderCache_.push_back(entry);
} else {
ls->use(vertType, lastShader_);
}
lastShader_ = ls;
return ls;
}
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