dolphin/Source/Plugins/Plugin_VideoOGL/Src/TextureCache.cpp
Nolan Check 0e534dd033 Clarify texture cache code. Previously, there were THREE sets of texture dimensions, and it was hard to tell which set was for what purpose.
Now, there are two:
Real dimensions: Width and height of the original GameCube texture
Virtual dimensions: Width and height of the texture used by dolphin-emu's renderer

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6291 8ced0084-cf51-0410-be5f-012b33b47a6e
2010-10-20 00:39:45 +00:00

401 lines
11 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/
#include <vector>
#include <cmath>
#include <fstream>
#ifdef _WIN32
#define _interlockedbittestandset workaround_ms_header_bug_platform_sdk6_set
#define _interlockedbittestandreset workaround_ms_header_bug_platform_sdk6_reset
#define _interlockedbittestandset64 workaround_ms_header_bug_platform_sdk6_set64
#define _interlockedbittestandreset64 workaround_ms_header_bug_platform_sdk6_reset64
#include <intrin.h>
#undef _interlockedbittestandset
#undef _interlockedbittestandreset
#undef _interlockedbittestandset64
#undef _interlockedbittestandreset64
#endif
#include "BPStructs.h"
#include "CommonPaths.h"
#include "FileUtil.h"
#include "FramebufferManager.h"
#include "Globals.h"
#include "Hash.h"
#include "HiresTextures.h"
#include "ImageWrite.h"
#include "MemoryUtil.h"
#include "PixelShaderCache.h"
#include "PixelShaderManager.h"
#include "Profiler.h"
#include "Render.h"
#include "Statistics.h"
#include "StringUtil.h"
#include "TextureCache.h"
#include "TextureConverter.h"
#include "TextureDecoder.h"
#include "VertexShaderManager.h"
#include "VideoConfig.h"
namespace OGL
{
static u32 s_TempFramebuffer = 0;
static const GLint c_MinLinearFilter[8] = {
GL_NEAREST,
GL_NEAREST_MIPMAP_NEAREST,
GL_NEAREST_MIPMAP_LINEAR,
GL_NEAREST,
GL_LINEAR,
GL_LINEAR_MIPMAP_NEAREST,
GL_LINEAR_MIPMAP_LINEAR,
GL_LINEAR,
};
static const GLint c_WrapSettings[4] = {
GL_CLAMP_TO_EDGE,
GL_REPEAT,
GL_MIRRORED_REPEAT,
GL_REPEAT,
};
bool SaveTexture(const char* filename, u32 textarget, u32 tex, int width, int height)
{
std::vector<u32> data(width * height);
glBindTexture(textarget, tex);
glGetTexImage(textarget, 0, GL_BGRA, GL_UNSIGNED_BYTE, &data[0]);
const GLenum err = GL_REPORT_ERROR();
if (GL_NO_ERROR != err)
{
PanicAlert("Can't save texture, GL Error: %s", gluErrorString(err));
return false;
}
return SaveTGA(filename, width, height, &data[0]);
}
TextureCache::TCacheEntry::~TCacheEntry()
{
if (texture)
{
glDeleteTextures(1, &texture);
texture = 0;
}
}
TextureCache::TCacheEntry::TCacheEntry()
{
glGenTextures(1, &texture);
GL_REPORT_ERRORD();
}
void TextureCache::TCacheEntry::Bind(unsigned int stage)
{
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, texture);
GL_REPORT_ERRORD();
// TODO: is this already done somewhere else?
TexMode0 &tm0 = bpmem.tex[stage >> 2].texMode0[stage & 3];
TexMode1 &tm1 = bpmem.tex[stage >> 2].texMode1[stage & 3];
SetTextureParameters(tm0, tm1);
}
bool TextureCache::TCacheEntry::Save(const char filename[])
{
// TODO: make ogl dump PNGs
std::string tga_filename(filename);
tga_filename.replace(tga_filename.size() - 3, 3, "tga");
return SaveTexture(tga_filename.c_str(), GL_TEXTURE_2D, texture, realW, realH);
}
TextureCache::TCacheEntryBase* TextureCache::CreateTexture(unsigned int width,
unsigned int height, unsigned int expanded_width,
unsigned int tex_levels, PC_TexFormat pcfmt)
{
int gl_format = 0,
gl_iformat = 0,
gl_type = 0;
if (pcfmt != PC_TEX_FMT_DXT1)
{
switch (pcfmt)
{
default:
case PC_TEX_FMT_NONE:
PanicAlert("Invalid PC texture format %i", pcfmt);
case PC_TEX_FMT_BGRA32:
gl_format = GL_BGRA;
gl_iformat = 4;
gl_type = GL_UNSIGNED_BYTE;
break;
case PC_TEX_FMT_RGBA32:
gl_format = GL_RGBA;
gl_iformat = 4;
gl_type = GL_UNSIGNED_BYTE;
break;
case PC_TEX_FMT_I4_AS_I8:
gl_format = GL_LUMINANCE;
gl_iformat = GL_INTENSITY4;
gl_type = GL_UNSIGNED_BYTE;
break;
case PC_TEX_FMT_IA4_AS_IA8:
gl_format = GL_LUMINANCE_ALPHA;
gl_iformat = GL_LUMINANCE4_ALPHA4;
gl_type = GL_UNSIGNED_BYTE;
break;
case PC_TEX_FMT_I8:
gl_format = GL_LUMINANCE;
gl_iformat = GL_INTENSITY8;
gl_type = GL_UNSIGNED_BYTE;
break;
case PC_TEX_FMT_IA8:
gl_format = GL_LUMINANCE_ALPHA;
gl_iformat = GL_LUMINANCE8_ALPHA8;
gl_type = GL_UNSIGNED_BYTE;
break;
case PC_TEX_FMT_RGB565:
gl_format = GL_RGB;
gl_iformat = GL_RGB;
gl_type = GL_UNSIGNED_SHORT_5_6_5;
break;
}
}
TCacheEntry &entry = *new TCacheEntry;
entry.gl_format = gl_format;
entry.gl_iformat = gl_iformat;
entry.gl_type = gl_type;
entry.pcfmt = pcfmt;
entry.bHaveMipMaps = tex_levels != 1;
return &entry;
}
void TextureCache::TCacheEntry::Load(unsigned int width, unsigned int height,
unsigned int expanded_width, unsigned int level)
{
//glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, texture);
//GL_REPORT_ERRORD();
if (pcfmt != PC_TEX_FMT_DXT1)
{
if (expanded_width != width)
glPixelStorei(GL_UNPACK_ROW_LENGTH, expanded_width);
if (bHaveMipMaps && 0 == level)
{
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
glTexImage2D(GL_TEXTURE_2D, level, gl_iformat, width, height, 0, gl_format, gl_type, temp);
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_FALSE);
}
else
{
glTexImage2D(GL_TEXTURE_2D, level, gl_iformat, width, height, 0, gl_format, gl_type, temp);
}
if (expanded_width != width)
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
}
else
{
PanicAlert("PC_TEX_FMT_DXT1 support disabled");
//glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT,
//width, height, 0, expanded_width * expanded_height/2, temp);
}
GL_REPORT_ERRORD();
}
TextureCache::TCacheEntryBase* TextureCache::CreateRenderTargetTexture(
unsigned int scaled_tex_w, unsigned int scaled_tex_h)
{
TCacheEntry *const entry = new TCacheEntry;
glBindTexture(GL_TEXTURE_2D, entry->texture);
GL_REPORT_ERRORD();
const GLenum
gl_format = GL_RGBA,
gl_iformat = 4,
gl_type = GL_UNSIGNED_BYTE;
glTexImage2D(GL_TEXTURE_2D, 0, gl_iformat, scaled_tex_w, scaled_tex_h, 0, gl_format, gl_type, NULL);
GL_REPORT_ERRORD();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (GL_REPORT_ERROR() != GL_NO_ERROR)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
GL_REPORT_ERRORD();
}
return entry;
}
void TextureCache::TCacheEntry::FromRenderTarget(bool bFromZBuffer, bool bScaleByHalf,
unsigned int cbufid, const float colmat[], const EFBRectangle &source_rect,
bool bIsIntensityFmt, u32 copyfmt)
{
glBindTexture(GL_TEXTURE_2D, texture);
// Make sure to resolve anything we need to read from.
const GLuint read_texture = bFromZBuffer ?
g_framebufferManager.ResolveAndGetDepthTarget(source_rect) :
g_framebufferManager.ResolveAndGetRenderTarget(source_rect);
// TODO: move
const float xScale = Renderer::GetTargetScaleX();
const float yScale = Renderer::GetTargetScaleY();
GL_REPORT_ERRORD();
if (false == isDynamic || g_ActiveConfig.bCopyEFBToTexture)
{
if (s_TempFramebuffer == 0)
glGenFramebuffersEXT(1, (GLuint*)&s_TempFramebuffer);
g_framebufferManager.SetFramebuffer(s_TempFramebuffer);
// Bind texture to temporary framebuffer
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, texture, 0);
GL_REPORT_FBO_ERROR();
GL_REPORT_ERRORD();
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
glActiveTexture(GL_TEXTURE0);
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, read_texture);
glViewport(0, 0, virtualW, virtualH);
PixelShaderCache::SetCurrentShader(bFromZBuffer ? PixelShaderCache::GetDepthMatrixProgram() : PixelShaderCache::GetColorMatrixProgram());
const float* const fConstAdd = colmat + 16; // fConstAdd is the last 4 floats of colmat
PixelShaderManager::SetColorMatrix(colmat, fConstAdd); // set transformation
GL_REPORT_ERRORD();
TargetRectangle targetSource = Renderer::ConvertEFBRectangle(source_rect);
glBegin(GL_QUADS);
glTexCoord2f((GLfloat)targetSource.left, (GLfloat)targetSource.bottom); glVertex2f(-1, 1);
glTexCoord2f((GLfloat)targetSource.left, (GLfloat)targetSource.top ); glVertex2f(-1, -1);
glTexCoord2f((GLfloat)targetSource.right, (GLfloat)targetSource.top ); glVertex2f( 1, -1);
glTexCoord2f((GLfloat)targetSource.right, (GLfloat)targetSource.bottom); glVertex2f( 1, 1);
glEnd();
GL_REPORT_ERRORD();
// Unbind texture from temporary framebuffer
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, 0, 0);
}
if (false == g_ActiveConfig.bCopyEFBToTexture)
{
hash = TextureConverter::EncodeToRamFromTexture(
addr,
read_texture,
xScale,
yScale,
bFromZBuffer,
bIsIntensityFmt,
copyfmt,
bScaleByHalf,
source_rect);
}
g_framebufferManager.SetFramebuffer(0);
VertexShaderManager::SetViewportChanged();
DisableStage(0);
GL_REPORT_ERRORD();
if (g_ActiveConfig.bDumpEFBTarget)
{
static int count = 0;
SaveTexture(StringFromFormat("%sefb_frame_%i.tga", File::GetUserPath(D_DUMPTEXTURES_IDX),
count++).c_str(), GL_TEXTURE_2D, texture, realW, realH);
}
}
void TextureCache::TCacheEntry::SetTextureParameters(const TexMode0 &newmode, const TexMode1 &newmode1)
{
// TODO: not used anywhere
TexMode0 mode = newmode;
//mode1 = newmode1;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
(newmode.mag_filter || g_Config.bForceFiltering) ? GL_LINEAR : GL_NEAREST);
if (bHaveMipMaps)
{
// TODO: not used anywhere
if (g_ActiveConfig.bForceFiltering && newmode.min_filter < 4)
mode.min_filter += 4; // take equivalent forced linear
int filt = newmode.min_filter;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, c_MinLinearFilter[filt & 7]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, newmode1.min_lod >> 4);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, newmode1.max_lod >> 4);
glTexEnvf(GL_TEXTURE_FILTER_CONTROL, GL_TEXTURE_LOD_BIAS, (newmode.lod_bias / 32.0f));
}
else
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
(g_ActiveConfig.bForceFiltering || newmode.min_filter >= 4) ? GL_LINEAR : GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, c_WrapSettings[newmode.wrap_s]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, c_WrapSettings[newmode.wrap_t]);
if (g_Config.iMaxAnisotropy >= 1)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT,
(float)(1 << g_ActiveConfig.iMaxAnisotropy));
}
TextureCache::~TextureCache()
{
if (s_TempFramebuffer)
{
glDeleteFramebuffersEXT(1, (GLuint*)&s_TempFramebuffer);
s_TempFramebuffer = 0;
}
}
void TextureCache::DisableStage(unsigned int stage)
{
glActiveTexture(GL_TEXTURE0 + stage);
glDisable(GL_TEXTURE_2D);
glDisable(GL_TEXTURE_RECTANGLE_ARB);
}
}