dolphin/Source/Plugins/Plugin_VideoOGL/Src/TextureConverter.cpp

462 lines
15 KiB
C++

// Copyright (C) 2003 Dolphin 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.
// 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 SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
// Fast image conversion using OpenGL shaders.
// This kind of stuff would be a LOT nicer with OpenCL.
#include "TextureConverter.h"
#include "TextureConversionShader.h"
#include "TextureCache.h"
#include "PixelShaderCache.h"
#include "VertexShaderManager.h"
#include "FramebufferManager.h"
#include "Globals.h"
#include "VideoConfig.h"
#include "ImageWrite.h"
#include "Render.h"
#include <math.h>
#include "FileUtil.h"
namespace TextureConverter
{
static GLuint s_texConvFrameBuffer = 0;
static GLuint s_srcTexture = 0; // for decoding from RAM
static GLuint s_srcTextureWidth = 0;
static GLuint s_srcTextureHeight = 0;
static GLuint s_dstRenderBuffer = 0; // for encoding to RAM
const int renderBufferWidth = 1024;
const int renderBufferHeight = 1024;
static FRAGMENTSHADER s_rgbToYuyvProgram;
static FRAGMENTSHADER s_yuyvToRgbProgram;
// Not all slots are taken - but who cares.
const u32 NUM_ENCODING_PROGRAMS = 64;
static FRAGMENTSHADER s_encodingPrograms[NUM_ENCODING_PROGRAMS];
void CreateRgbToYuyvProgram()
{
// Output is BGRA because that is slightly faster than RGBA.
const char *FProgram =
"uniform samplerRECT samp0 : register(s0);\n"
"void main(\n"
" out float4 ocol0 : COLOR0,\n"
" in float2 uv0 : TEXCOORD0)\n"
"{\n"
" float2 uv1 = float2(uv0.x + 1.0f, uv0.y);\n"
" float3 c0 = texRECT(samp0, uv0).rgb;\n"
" float3 c1 = texRECT(samp0, uv1).rgb;\n"
" float3 y_const = float3(0.257f,0.504f,0.098f);\n"
" float3 u_const = float3(-0.148f,-0.291f,0.439f);\n"
" float3 v_const = float3(0.439f,-0.368f,-0.071f);\n"
" float4 const3 = float4(0.0625f,0.5f,0.0625f,0.5f);\n"
" float3 c01 = (c0 + c1) * 0.5f;\n"
" ocol0 = float4(dot(c1,y_const),dot(c01,u_const),dot(c0,y_const),dot(c01, v_const)) + const3;\n"
"}\n";
if (!PixelShaderCache::CompilePixelShader(s_rgbToYuyvProgram, FProgram)) {
ERROR_LOG(VIDEO, "Failed to create RGB to YUYV fragment program");
}
}
void CreateYuyvToRgbProgram()
{
const char *FProgram =
"uniform samplerRECT samp0 : register(s0);\n"
"void main(\n"
" out float4 ocol0 : COLOR0,\n"
" in float2 uv0 : TEXCOORD0)\n"
"{\n"
" float4 c0 = texRECT(samp0, uv0).rgba;\n"
" float f = step(0.5, frac(uv0.x));\n"
" float y = lerp(c0.b, c0.r, f);\n"
" float yComp = 1.164f * (y - 0.0625f);\n"
" float uComp = c0.g - 0.5f;\n"
" float vComp = c0.a - 0.5f;\n"
" ocol0 = float4(yComp + (1.596f * vComp),\n"
" yComp - (0.813f * vComp) - (0.391f * uComp),\n"
" yComp + (2.018f * uComp),\n"
" 1.0f);\n"
"}\n";
if (!PixelShaderCache::CompilePixelShader(s_yuyvToRgbProgram, FProgram)) {
ERROR_LOG(VIDEO, "Failed to create YUYV to RGB fragment program");
}
}
FRAGMENTSHADER &GetOrCreateEncodingShader(u32 format)
{
if (format > NUM_ENCODING_PROGRAMS)
{
PanicAlert("Unknown texture copy format: 0x%x\n", format);
return s_encodingPrograms[0];
}
if (s_encodingPrograms[format].glprogid == 0)
{
const char* shader = TextureConversionShader::GenerateEncodingShader(format,API_OPENGL);
#if defined(_DEBUG) || defined(DEBUGFAST)
if (g_ActiveConfig.iLog & CONF_SAVESHADERS && shader) {
static int counter = 0;
char szTemp[MAX_PATH];
sprintf(szTemp, "%senc_%04i.txt", File::GetUserPath(D_DUMP_IDX), counter++);
SaveData(szTemp, shader);
}
#endif
if (!PixelShaderCache::CompilePixelShader(s_encodingPrograms[format], shader)) {
ERROR_LOG(VIDEO, "Failed to create encoding fragment program");
}
}
return s_encodingPrograms[format];
}
void Init()
{
glGenFramebuffersEXT(1, &s_texConvFrameBuffer);
glGenRenderbuffersEXT(1, &s_dstRenderBuffer);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_dstRenderBuffer);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA, renderBufferWidth, renderBufferHeight);
glGenTextures(1, &s_srcTexture);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_srcTexture);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
CreateRgbToYuyvProgram();
CreateYuyvToRgbProgram();
}
void Shutdown()
{
glDeleteTextures(1, &s_srcTexture);
glDeleteRenderbuffersEXT(1, &s_dstRenderBuffer);
glDeleteFramebuffersEXT(1, &s_texConvFrameBuffer);
s_rgbToYuyvProgram.Destroy();
s_yuyvToRgbProgram.Destroy();
for (unsigned int i = 0; i < NUM_ENCODING_PROGRAMS; i++)
s_encodingPrograms[i].Destroy();
s_srcTexture = 0;
s_dstRenderBuffer = 0;
s_texConvFrameBuffer = 0;
}
void EncodeToRamUsingShader(FRAGMENTSHADER& shader, GLuint srcTexture, const TargetRectangle& sourceRc,
u8* destAddr, int dstWidth, int dstHeight, int readStride, bool toTexture, bool linearFilter)
{
// switch to texture converter frame buffer
// attach render buffer as color destination
g_framebufferManager.SetFramebuffer(s_texConvFrameBuffer);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_dstRenderBuffer);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, s_dstRenderBuffer);
GL_REPORT_ERRORD();
for (int i = 1; i < 8; ++i)
TextureCache::DisableStage(i);
// set source texture
glActiveTexture(GL_TEXTURE0);
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, srcTexture);
if (linearFilter)
{
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
else
{
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
GL_REPORT_ERRORD();
glViewport(0, 0, (GLsizei)dstWidth, (GLsizei)dstHeight);
PixelShaderCache::SetCurrentShader(shader.glprogid);
// Draw...
glBegin(GL_QUADS);
glTexCoord2f((float)sourceRc.left, (float)sourceRc.top); glVertex2f(-1,-1);
glTexCoord2f((float)sourceRc.left, (float)sourceRc.bottom); glVertex2f(-1,1);
glTexCoord2f((float)sourceRc.right, (float)sourceRc.bottom); glVertex2f(1,1);
glTexCoord2f((float)sourceRc.right, (float)sourceRc.top); glVertex2f(1,-1);
glEnd();
GL_REPORT_ERRORD();
// .. and then readback the results.
// TODO: make this less slow.
int writeStride = bpmem.copyMipMapStrideChannels * 32;
if (writeStride != readStride && toTexture)
{
// writing to a texture of a different size
int readHeight = readStride / dstWidth;
readHeight /= 4; // 4 bytes per pixel
int readStart = 0;
int readLoops = dstHeight / readHeight;
for (int i = 0; i < readLoops; i++)
{
glReadPixels(0, readStart, (GLsizei)dstWidth, (GLsizei)readHeight, GL_BGRA, GL_UNSIGNED_BYTE, destAddr);
readStart += readHeight;
destAddr += writeStride;
}
}
else
glReadPixels(0, 0, (GLsizei)dstWidth, (GLsizei)dstHeight, GL_BGRA, GL_UNSIGNED_BYTE, destAddr);
GL_REPORT_ERRORD();
}
void EncodeToRam(u32 address, bool bFromZBuffer, bool bIsIntensityFmt, u32 copyfmt, int bScaleByHalf, const EFBRectangle& source)
{
u32 format = copyfmt;
if (bFromZBuffer)
{
format |= _GX_TF_ZTF;
if (copyfmt == 11)
format = GX_TF_Z16;
else if (format < GX_TF_Z8 || format > GX_TF_Z24X8)
format |= _GX_TF_CTF;
}
else
if (copyfmt > GX_TF_RGBA8 || (copyfmt < GX_TF_RGB565 && !bIsIntensityFmt))
format |= _GX_TF_CTF;
FRAGMENTSHADER& texconv_shader = GetOrCreateEncodingShader(format);
if (texconv_shader.glprogid == 0)
return;
u8 *dest_ptr = Memory_GetPtr(address);
GLuint source_texture = bFromZBuffer ? g_framebufferManager.ResolveAndGetDepthTarget(source) : g_framebufferManager.ResolveAndGetRenderTarget(source);
int width = (source.right - source.left) >> bScaleByHalf;
int height = (source.bottom - source.top) >> bScaleByHalf;
int size_in_bytes = TexDecoder_GetTextureSizeInBytes(width, height, format);
// Invalidate any existing texture covering this memory range.
// TODO - don't delete the texture if it already exists, just replace the contents.
TextureCache::InvalidateRange(address, size_in_bytes);
u16 blkW = TexDecoder_GetBlockWidthInTexels(format) - 1;
u16 blkH = TexDecoder_GetBlockHeightInTexels(format) - 1;
u16 samples = TextureConversionShader::GetEncodedSampleCount(format);
// only copy on cache line boundaries
// extra pixels are copied but not displayed in the resulting texture
s32 expandedWidth = (width + blkW) & (~blkW);
s32 expandedHeight = (height + blkH) & (~blkH);
float MValueX = Renderer::GetTargetScaleX();
float MValueY = Renderer::GetTargetScaleY();
float top = (EFB_HEIGHT - source.top - expandedHeight) * MValueY ;
float sampleStride = bScaleByHalf?2.0f:1.0f;
TextureConversionShader::SetShaderParameters((float)expandedWidth,
expandedHeight * MValueY,
source.left * MValueX,
top,
sampleStride * MValueX,
sampleStride * MValueY);
TargetRectangle scaledSource;
scaledSource.top = 0;
scaledSource.bottom = expandedHeight;
scaledSource.left = 0;
scaledSource.right = expandedWidth / samples;
int cacheBytes = 32;
if ((format & 0x0f) == 6)
cacheBytes = 64;
int readStride = (expandedWidth * cacheBytes) / TexDecoder_GetBlockWidthInTexels(format);
Renderer::ResetAPIState();
EncodeToRamUsingShader(texconv_shader, source_texture, scaledSource, dest_ptr, expandedWidth / samples, expandedHeight, readStride, true, bScaleByHalf > 0);
g_framebufferManager.SetFramebuffer(0);
VertexShaderManager::SetViewportChanged();
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
TextureCache::DisableStage(0);
Renderer::RestoreAPIState();
GL_REPORT_ERRORD();
}
u64 EncodeToRamFromTexture(u32 address,GLuint source_texture,float MValueX,float MValueY,bool bFromZBuffer, bool bIsIntensityFmt, u32 copyfmt, int bScaleByHalf, const EFBRectangle& source)
{
u32 format = copyfmt;
if (bFromZBuffer)
{
format |= _GX_TF_ZTF;
if (copyfmt == 11)
format = GX_TF_Z16;
else if (format < GX_TF_Z8 || format > GX_TF_Z24X8)
format |= _GX_TF_CTF;
}
else
if (copyfmt > GX_TF_RGBA8 || (copyfmt < GX_TF_RGB565 && !bIsIntensityFmt))
format |= _GX_TF_CTF;
FRAGMENTSHADER& texconv_shader = GetOrCreateEncodingShader(format);
if (texconv_shader.glprogid == 0)
return 0;
u8 *dest_ptr = Memory_GetPtr(address);
int width = (source.right - source.left) >> bScaleByHalf;
int height = (source.bottom - source.top) >> bScaleByHalf;
int size_in_bytes = TexDecoder_GetTextureSizeInBytes(width, height, format);
u16 blkW = TexDecoder_GetBlockWidthInTexels(format) - 1;
u16 blkH = TexDecoder_GetBlockHeightInTexels(format) - 1;
u16 samples = TextureConversionShader::GetEncodedSampleCount(format);
// only copy on cache line boundaries
// extra pixels are copied but not displayed in the resulting texture
s32 expandedWidth = (width + blkW) & (~blkW);
s32 expandedHeight = (height + blkH) & (~blkH);
float sampleStride = bScaleByHalf?2.0f:1.0f;
float top = (EFB_HEIGHT - source.top - expandedHeight) * MValueY ;
TextureConversionShader::SetShaderParameters((float)expandedWidth,
expandedHeight * MValueY,
source.left * MValueX,
top,
sampleStride * MValueX,
sampleStride * MValueY);
TargetRectangle scaledSource;
scaledSource.top = 0;
scaledSource.bottom = expandedHeight;
scaledSource.left = 0;
scaledSource.right = expandedWidth / samples;
int cacheBytes = 32;
if ((format & 0x0f) == 6)
cacheBytes = 64;
int readStride = (expandedWidth * cacheBytes) / TexDecoder_GetBlockWidthInTexels(format);
EncodeToRamUsingShader(texconv_shader, source_texture, scaledSource, dest_ptr, expandedWidth / samples, expandedHeight, readStride, true, bScaleByHalf > 0 && !bFromZBuffer);
TextureCache::MakeRangeDynamic(address,size_in_bytes);
return GetHash64(dest_ptr,size_in_bytes,g_ActiveConfig.iSafeTextureCache_ColorSamples);
}
void EncodeToRamYUYV(GLuint srcTexture, const TargetRectangle& sourceRc, u8* destAddr, int dstWidth, int dstHeight)
{
Renderer::ResetAPIState();
EncodeToRamUsingShader(s_rgbToYuyvProgram, srcTexture, sourceRc, destAddr, dstWidth / 2, dstHeight, 0, false, false);
g_framebufferManager.SetFramebuffer(0);
VertexShaderManager::SetViewportChanged();
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
TextureCache::DisableStage(0);
Renderer::RestoreAPIState();
GL_REPORT_ERRORD();
}
// Should be scale free.
void DecodeToTexture(u32 xfbAddr, int srcWidth, int srcHeight, GLuint destTexture)
{
u8* srcAddr = Memory_GetPtr(xfbAddr);
if (!srcAddr)
{
WARN_LOG(VIDEO, "Tried to decode from invalid memory address");
return;
}
int srcFmtWidth = srcWidth / 2;
Renderer::ResetAPIState(); // reset any game specific settings
// swich to texture converter frame buffer
// attach destTexture as color destination
g_framebufferManager.SetFramebuffer(s_texConvFrameBuffer);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, destTexture);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, destTexture, 0);
GL_REPORT_FBO_ERROR();
for (int i = 1; i < 8; ++i)
TextureCache::DisableStage(i);
// activate source texture
// set srcAddr as data for source texture
glActiveTexture(GL_TEXTURE0);
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_srcTexture);
// TODO: make this less slow. (How?)
if((GLsizei)s_srcTextureWidth == (GLsizei)srcFmtWidth && (GLsizei)s_srcTextureHeight == (GLsizei)srcHeight)
{
glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0,0,0,s_srcTextureWidth, s_srcTextureHeight, GL_BGRA, GL_UNSIGNED_BYTE, srcAddr);
}
else
{
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, (GLsizei)srcFmtWidth, (GLsizei)srcHeight, 0, GL_BGRA, GL_UNSIGNED_BYTE, srcAddr);
s_srcTextureWidth = (GLsizei)srcFmtWidth;
s_srcTextureHeight = (GLsizei)srcHeight;
}
glViewport(0, 0, srcWidth, srcHeight);
PixelShaderCache::SetCurrentShader(s_yuyvToRgbProgram.glprogid);
GL_REPORT_ERRORD();
glBegin(GL_QUADS);
glTexCoord2f(srcFmtWidth, (float)srcHeight); glVertex2f(1,-1);
glTexCoord2f(srcFmtWidth, 0); glVertex2f(1,1);
glTexCoord2f(0, 0); glVertex2f(-1,1);
glTexCoord2f(0, (float)srcHeight); glVertex2f(-1,-1);
glEnd();
// reset state
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, 0, 0);
TextureCache::DisableStage(0);
VertexShaderManager::SetViewportChanged();
g_framebufferManager.SetFramebuffer(0);
Renderer::RestoreAPIState();
GL_REPORT_ERRORD();
}
} // namespace