mirror of
https://github.com/libretro/ppsspp.git
synced 2024-11-25 01:00:01 +00:00
457 lines
15 KiB
C++
457 lines
15 KiB
C++
// Copyright (c) 2014- 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/.
|
|
|
|
#include <map>
|
|
|
|
#include "base/logging.h"
|
|
#include "Common/Log.h"
|
|
#include "Core/Reporting.h"
|
|
#include "DepalettizeShader.h"
|
|
#include "GPU/GPUState.h"
|
|
#include "GPU/GLES/TextureCache.h"
|
|
|
|
static const int DEPAL_TEXTURE_OLD_AGE = 120;
|
|
|
|
#ifdef _WIN32
|
|
#define SHADERLOG
|
|
#endif
|
|
|
|
static const char *depalVShader100 =
|
|
#ifdef USING_GLES2
|
|
"#version 100\n"
|
|
"precision highp float;\n"
|
|
#endif
|
|
"attribute vec4 a_position;\n"
|
|
"attribute vec2 a_texcoord0;\n"
|
|
"varying vec2 v_texcoord0;\n"
|
|
"void main() {\n"
|
|
" v_texcoord0 = a_texcoord0;\n"
|
|
" gl_Position = a_position;\n"
|
|
"}\n";
|
|
|
|
static const char *depalVShader300 =
|
|
#ifdef USING_GLES2
|
|
"#version 300 es\n"
|
|
"precision highp float;\n"
|
|
#else
|
|
"#version 330\n"
|
|
#endif
|
|
"in vec4 a_position;\n"
|
|
"in vec2 a_texcoord0;\n"
|
|
"out vec2 v_texcoord0;\n"
|
|
"void main() {\n"
|
|
" v_texcoord0 = a_texcoord0;\n"
|
|
" gl_Position = a_position;\n"
|
|
"}\n";
|
|
|
|
|
|
static bool CheckShaderCompileSuccess(GLuint shader, const char *code) {
|
|
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);
|
|
#ifdef SHADERLOG
|
|
OutputDebugStringUTF8(infoLog);
|
|
#endif
|
|
shader = 0;
|
|
return false;
|
|
} else {
|
|
DEBUG_LOG(G3D, "Compiled shader:\n%s\n", (const char *)code);
|
|
#ifdef SHADERLOG
|
|
OutputDebugStringUTF8(code);
|
|
#endif
|
|
return true;
|
|
}
|
|
}
|
|
|
|
DepalShaderCache::DepalShaderCache() {
|
|
// Pre-build the vertex program
|
|
useGL3_ = gl_extensions.GLES3 || gl_extensions.VersionGEThan(3, 3);
|
|
|
|
vertexShader_ = glCreateShader(GL_VERTEX_SHADER);
|
|
glShaderSource(vertexShader_, 1, useGL3_ ? &depalVShader300 : &depalVShader100, 0);
|
|
glCompileShader(vertexShader_);
|
|
|
|
if (!CheckShaderCompileSuccess(vertexShader_, useGL3_ ? depalVShader300 : depalVShader100)) {
|
|
// ...
|
|
}
|
|
}
|
|
|
|
DepalShaderCache::~DepalShaderCache() {
|
|
Clear();
|
|
glDeleteShader(vertexShader_);
|
|
}
|
|
|
|
#define WRITE p+=sprintf
|
|
|
|
// Uses integer instructions available since OpenGL 3.0. Suitable for ES 3.0 as well.
|
|
void GenerateDepalShader300(char *buffer, GEBufferFormat pixelFormat) {
|
|
char *p = buffer;
|
|
#ifdef USING_GLES2
|
|
WRITE(p, "#version 300 es\n");
|
|
WRITE(p, "precision mediump float;\n");
|
|
#else
|
|
WRITE(p, "#version 330\n");
|
|
#endif
|
|
WRITE(p, "in vec2 v_texcoord0;\n");
|
|
WRITE(p, "out vec4 fragColor0;\n");
|
|
WRITE(p, "uniform sampler2D tex;\n");
|
|
WRITE(p, "uniform sampler2D pal;\n");
|
|
|
|
WRITE(p, "void main() {\n");
|
|
WRITE(p, " vec4 color = texture(tex, v_texcoord0);\n");
|
|
|
|
int mask = gstate.getClutIndexMask();
|
|
int shift = gstate.getClutIndexShift();
|
|
int offset = gstate.getClutIndexStartPos();
|
|
const GEPaletteFormat clutFormat = gstate.getClutPaletteFormat();
|
|
// Unfortunately sampling turned our texture into floating point. To avoid this, might be able
|
|
// to declare them as isampler2D objects, but these require integer textures, which needs more work.
|
|
// Anyhow, we simply work around this by converting back to integer. Hopefully there will be no loss of precision.
|
|
// Use the mask to skip reading some components.
|
|
int shiftedMask = mask << shift;
|
|
switch (pixelFormat) {
|
|
case GE_FORMAT_8888:
|
|
if (shiftedMask & 0xFF) WRITE(p, " int r = int(color.r * 255.99);\n"); else WRITE(p, " int r = 0;\n");
|
|
if (shiftedMask & 0xFF00) WRITE(p, " int g = int(color.g * 255.99);\n"); else WRITE(p, " int g = 0;\n");
|
|
if (shiftedMask & 0xFF0000) WRITE(p, " int b = int(color.b * 255.99);\n"); else WRITE(p, " int b = 0;\n");
|
|
if (shiftedMask & 0xFF000000) WRITE(p, " int a = int(color.a * 255.99);\n"); else WRITE(p, " int a = 0;\n");
|
|
WRITE(p, " int index = (a << 24) | (b << 16) | (g << 8) | (r);\n");
|
|
break;
|
|
case GE_FORMAT_4444:
|
|
if (shiftedMask & 0xF) WRITE(p, " int r = int(color.r * 15.99);\n"); else WRITE(p, " int r = 0;\n");
|
|
if (shiftedMask & 0xF0) WRITE(p, " int g = int(color.g * 15.99);\n"); else WRITE(p, " int g = 0;\n");
|
|
if (shiftedMask & 0xF00) WRITE(p, " int b = int(color.b * 15.99);\n"); else WRITE(p, " int b = 0;\n");
|
|
if (shiftedMask & 0xF000) WRITE(p, " int a = int(color.a * 15.99);\n"); else WRITE(p, " int a = 0;\n");
|
|
WRITE(p, " int index = (a << 12) | (b << 8) | (g << 4) | (r);\n");
|
|
break;
|
|
case GE_FORMAT_565:
|
|
if (shiftedMask & 0x1F) WRITE(p, " int r = int(color.r * 31.99);\n"); else WRITE(p, " int r = 0;\n");
|
|
if (shiftedMask & 0x7E0) WRITE(p, " int g = int(color.g * 63.99);\n"); else WRITE(p, " int g = 0;\n");
|
|
if (shiftedMask & 0xF800) WRITE(p, " int b = int(color.b * 31.99);\n"); else WRITE(p, " int b = 0;\n");
|
|
WRITE(p, " int index = (b << 11) | (g << 5) | (r);\n");
|
|
break;
|
|
case GE_FORMAT_5551:
|
|
if (shiftedMask & 0x1F) WRITE(p, " int r = int(color.r * 31.99);\n"); else WRITE(p, " int r = 0;\n");
|
|
if (shiftedMask & 0x3E0) WRITE(p, " int g = int(color.g * 31.99);\n"); else WRITE(p, " int g = 0;\n");
|
|
if (shiftedMask & 0x7C00) WRITE(p, " int b = int(color.b * 31.99);\n"); else WRITE(p, " int b = 0;\n");
|
|
if (shiftedMask & 0x8000) WRITE(p, " int a = int(color.a);\n"); else WRITE(p, " int a = 0;\n");
|
|
WRITE(p, " int index = (a << 15) | (b << 10) | (g << 5) | (r);\n");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
float texturePixels = 256;
|
|
if (clutFormat != GE_CMODE_32BIT_ABGR8888)
|
|
texturePixels = 512;
|
|
|
|
if (shift) {
|
|
WRITE(p, " index = ((index >> %i) & 0x%02x)", shift, mask);
|
|
} else {
|
|
WRITE(p, " index = (index & 0x%02x)", mask);
|
|
}
|
|
if (offset) {
|
|
WRITE(p, " | %i;\n", offset); // '|' matches what we have in gstate.h
|
|
} else {
|
|
WRITE(p, ";\n");
|
|
}
|
|
|
|
WRITE(p, " fragColor0 = texture(pal, vec2((float(index) + 0.5) * (1.0 / %f), 0.0));\n", texturePixels);
|
|
WRITE(p, "}\n");
|
|
}
|
|
|
|
// FP only, to suit GL(ES) 2.0
|
|
void GenerateDepalShader100(char *buffer, GEBufferFormat pixelFormat) {
|
|
char *p = buffer;
|
|
|
|
char lookupMethod[128] = "index.r";
|
|
char offset[128] = "";
|
|
|
|
const GEPaletteFormat clutFormat = gstate.getClutPaletteFormat();
|
|
const u32 clutBase = gstate.getClutIndexStartPos();
|
|
|
|
const int shift = gstate.getClutIndexShift();
|
|
const int mask = gstate.getClutIndexMask();
|
|
|
|
float index_multiplier = 1.0f;
|
|
// pixelformat is the format of the texture we are sampling.
|
|
bool formatOK = true;
|
|
switch (pixelFormat) {
|
|
case GE_FORMAT_8888:
|
|
if ((mask & (mask + 1)) == 0) {
|
|
// If the value has all bits contiguous (bitmask check above), we can mod by it + 1.
|
|
const char *rgba = "rrrrrrrrggggggggbbbbbbbbaaaaaaaa";
|
|
const u8 rgba_shift = shift & 7;
|
|
if (rgba_shift == 0 && mask == 0xFF) {
|
|
sprintf(lookupMethod, "index.%c", rgba[shift]);
|
|
} else {
|
|
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], 255.99f / (1 << rgba_shift), mask + 1);
|
|
index_multiplier = 1.0f / 256.0f;
|
|
// Format was OK if there weren't bits from another component.
|
|
formatOK = mask <= 255 - (1 << rgba_shift);
|
|
}
|
|
} else {
|
|
formatOK = false;
|
|
}
|
|
break;
|
|
case GE_FORMAT_4444:
|
|
if ((mask & (mask + 1)) == 0 && shift < 16) {
|
|
const char *rgba = "rrrrggggbbbbaaaa";
|
|
const u8 rgba_shift = shift & 3;
|
|
if (rgba_shift == 0 && mask == 0xF) {
|
|
sprintf(lookupMethod, "index.%c", rgba[shift]);
|
|
index_multiplier = 15.0f / 256.0f;
|
|
} else {
|
|
// Let's divide and mod to get the right bits. A common case is shift=0, mask=01.
|
|
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], 15.99f / (1 << rgba_shift), mask + 1);
|
|
index_multiplier = 1.0f / 256.0f;
|
|
formatOK = mask <= 15 - (1 << rgba_shift);
|
|
}
|
|
} else {
|
|
formatOK = false;
|
|
}
|
|
break;
|
|
case GE_FORMAT_565:
|
|
if ((mask & (mask + 1)) == 0 && shift < 16) {
|
|
const u8 shifts[16] = {0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4};
|
|
const int multipliers[16] = {31, 31, 31, 31, 31, 63, 63, 63, 63, 63, 63, 31, 31, 31, 31, 31};
|
|
const char *rgba = "rrrrrggggggbbbbb";
|
|
const u8 rgba_shift = shifts[shift];
|
|
if (rgba_shift == 0 && mask == multipliers[shift]) {
|
|
sprintf(lookupMethod, "index.%c", rgba[shift]);
|
|
index_multiplier = multipliers[shift] / 256.0f;
|
|
} else {
|
|
// We just need to divide the right component by the right value, and then mod against the mask.
|
|
// A common case is shift=1, mask=0f.
|
|
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], ((float)multipliers[shift] + 0.99f) / (1 << rgba_shift), mask + 1);
|
|
index_multiplier = 1.0f / 256.0f;
|
|
formatOK = mask <= multipliers[shift] - (1 << rgba_shift);
|
|
}
|
|
} else {
|
|
formatOK = false;
|
|
}
|
|
break;
|
|
case GE_FORMAT_5551:
|
|
if ((mask & (mask + 1)) == 0 && shift < 16) {
|
|
const char *rgba = "rrrrrgggggbbbbba";
|
|
const u8 rgba_shift = shift % 5;
|
|
if (rgba_shift == 0 && mask == 0x1F) {
|
|
sprintf(lookupMethod, "index.%c", rgba[shift]);
|
|
index_multiplier = 31.0f / 256.0f;
|
|
} else if (shift == 15 && mask == 1) {
|
|
sprintf(lookupMethod, "index.%c", rgba[shift]);
|
|
index_multiplier = 1.0f / 256.0f;
|
|
} else {
|
|
// A isn't possible here.
|
|
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], 31.99f / (1 << rgba_shift), mask + 1);
|
|
index_multiplier = 1.0f / 256.0f;
|
|
formatOK = mask <= 31 - (1 << rgba_shift);
|
|
}
|
|
} else {
|
|
formatOK = false;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
float texturePixels = 256.f;
|
|
if (clutFormat != GE_CMODE_32BIT_ABGR8888) {
|
|
texturePixels = 512.f;
|
|
index_multiplier *= 0.5f;
|
|
}
|
|
|
|
// Adjust index_multiplier, similar to the use of 15.99 instead of 16 in the ES 3 path.
|
|
// index_multiplier -= 0.01f / texturePixels;
|
|
|
|
if (!formatOK) {
|
|
ERROR_LOG_REPORT_ONCE(depal, G3D, "%i depal unsupported: shift=%i mask=%02x offset=%d", pixelFormat, shift, mask, clutBase);
|
|
}
|
|
|
|
// Offset by half a texel (plus clutBase) to turn NEAREST filtering into FLOOR.
|
|
float texel_offset = ((float)clutBase + 0.5f) / texturePixels;
|
|
sprintf(offset, " + %f", texel_offset);
|
|
|
|
#ifdef USING_GLES2
|
|
WRITE(p, "#version 100\n");
|
|
WRITE(p, "precision mediump float;\n");
|
|
#else
|
|
WRITE(p, "#version 110\n");
|
|
#endif
|
|
WRITE(p, "varying vec2 v_texcoord0;\n");
|
|
WRITE(p, "uniform sampler2D tex;\n");
|
|
WRITE(p, "uniform sampler2D pal;\n");
|
|
WRITE(p, "void main() {\n");
|
|
WRITE(p, " vec4 index = texture2D(tex, v_texcoord0);\n");
|
|
WRITE(p, " float coord = (%s * %f)%s;\n", lookupMethod, index_multiplier, offset);
|
|
WRITE(p, " gl_FragColor = texture2D(pal, vec2(coord, 0.0));\n");
|
|
WRITE(p, "}\n");
|
|
}
|
|
|
|
#undef WRITE
|
|
|
|
|
|
u32 DepalShaderCache::GenerateShaderID(GEBufferFormat pixelFormat) {
|
|
return (gstate.clutformat & 0xFFFFFF) | (pixelFormat << 24);
|
|
}
|
|
|
|
GLuint DepalShaderCache::GetClutTexture(const u32 clutID, u32 *rawClut) {
|
|
GEPaletteFormat palFormat = gstate.getClutPaletteFormat();
|
|
const u32 realClutID = clutID ^ palFormat;
|
|
|
|
auto oldtex = texCache_.find(realClutID);
|
|
if (oldtex != texCache_.end()) {
|
|
oldtex->second->lastFrame = gpuStats.numFlips;
|
|
return oldtex->second->texture;
|
|
}
|
|
|
|
GLuint dstFmt = getClutDestFormat(palFormat);
|
|
int texturePixels = palFormat == GE_CMODE_32BIT_ABGR8888 ? 256 : 512;
|
|
|
|
bool useBGRA = UseBGRA8888() && dstFmt == GL_UNSIGNED_BYTE;
|
|
|
|
DepalTexture *tex = new DepalTexture();
|
|
glGenTextures(1, &tex->texture);
|
|
glBindTexture(GL_TEXTURE_2D, tex->texture);
|
|
GLuint components = dstFmt == GL_UNSIGNED_SHORT_5_6_5 ? GL_RGB : GL_RGBA;
|
|
|
|
GLuint components2 = components;
|
|
if (useBGRA) {
|
|
components2 = GL_BGRA_EXT;
|
|
}
|
|
|
|
glTexImage2D(GL_TEXTURE_2D, 0, components, texturePixels, 1, 0, components2, dstFmt, (void *)rawClut);
|
|
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
|
|
tex->lastFrame = gpuStats.numFlips;
|
|
texCache_[realClutID] = tex;
|
|
return tex->texture;
|
|
}
|
|
|
|
void DepalShaderCache::Clear() {
|
|
for (auto shader = cache_.begin(); shader != cache_.end(); ++shader) {
|
|
glDeleteShader(shader->second->fragShader);
|
|
glDeleteProgram(shader->second->program);
|
|
delete shader->second;
|
|
}
|
|
cache_.clear();
|
|
for (auto tex = texCache_.begin(); tex != texCache_.end(); ++tex) {
|
|
glDeleteTextures(1, &tex->second->texture);
|
|
delete tex->second;
|
|
}
|
|
texCache_.clear();
|
|
}
|
|
|
|
void DepalShaderCache::Decimate() {
|
|
for (auto tex = texCache_.begin(); tex != texCache_.end(); ) {
|
|
if (tex->second->lastFrame + DEPAL_TEXTURE_OLD_AGE < gpuStats.numFlips) {
|
|
glDeleteTextures(1, &tex->second->texture);
|
|
delete tex->second;
|
|
texCache_.erase(tex++);
|
|
} else {
|
|
++tex;
|
|
}
|
|
}
|
|
}
|
|
|
|
GLuint DepalShaderCache::GetDepalettizeShader(GEBufferFormat pixelFormat) {
|
|
u32 id = GenerateShaderID(pixelFormat);
|
|
|
|
auto shader = cache_.find(id);
|
|
if (shader != cache_.end()) {
|
|
return shader->second->program;
|
|
}
|
|
|
|
char *buffer = new char[2048];
|
|
|
|
if (useGL3_) {
|
|
GenerateDepalShader300(buffer, pixelFormat);
|
|
} else {
|
|
GenerateDepalShader100(buffer, pixelFormat);
|
|
}
|
|
|
|
GLuint fragShader = glCreateShader(GL_FRAGMENT_SHADER);
|
|
|
|
const char *buf = buffer;
|
|
glShaderSource(fragShader, 1, &buf, 0);
|
|
glCompileShader(fragShader);
|
|
|
|
CheckShaderCompileSuccess(fragShader, buffer);
|
|
|
|
GLuint program = glCreateProgram();
|
|
glAttachShader(program, vertexShader_);
|
|
glAttachShader(program, fragShader);
|
|
|
|
glBindAttribLocation(program, 0, "a_position");
|
|
glBindAttribLocation(program, 1, "a_texcoord0");
|
|
|
|
glLinkProgram(program);
|
|
glUseProgram(program);
|
|
|
|
GLint u_tex = glGetUniformLocation(program, "tex");
|
|
GLint u_pal = glGetUniformLocation(program, "pal");
|
|
|
|
glUniform1i(u_tex, 0);
|
|
glUniform1i(u_pal, 1);
|
|
|
|
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* errorbuf = new char[bufLength];
|
|
glGetProgramInfoLog(program, bufLength, NULL, errorbuf);
|
|
#ifdef SHADERLOG
|
|
OutputDebugStringUTF8(buffer);
|
|
OutputDebugStringUTF8(errorbuf);
|
|
#endif
|
|
ERROR_LOG(G3D, "Could not link program:\n %s \n\n %s", errorbuf, buf);
|
|
delete[] errorbuf; // we're dead!
|
|
}
|
|
|
|
delete[] buffer;
|
|
return 0;
|
|
}
|
|
|
|
DepalShader *depal = new DepalShader();
|
|
depal->program = program;
|
|
depal->fragShader = fragShader;
|
|
|
|
cache_[id] = depal;
|
|
|
|
delete[] buffer;
|
|
|
|
return depal->program;
|
|
}
|