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

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// Copyright (C) 2003-2008 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 "Globals.h"
#include <vector>
#include <cmath>
#include "GLUtil.h"
#include <Cg/cg.h>
#include <Cg/cgGL.h>
#ifdef _WIN32
#include <mmsystem.h>
#endif
#include "Config.h"
#include "Profiler.h"
#include "Statistics.h"
#include "ImageWrite.h"
#include "Render.h"
#include "OpcodeDecoding.h"
#include "BPStructs.h"
#include "TextureMngr.h"
#include "rasterfont.h"
#include "VertexShaderGen.h"
#include "PixelShaderCache.h"
#include "PixelShaderManager.h"
#include "VertexShaderCache.h"
#include "VertexShaderManager.h"
#include "VertexLoaderManager.h"
#include "VertexLoader.h"
#include "XFB.h"
#include "OnScreenDisplay.h"
#include "Timer.h"
#include "main.h" // Local
#ifdef _WIN32
#include "OS/Win32.h"
#endif
#if defined(HAVE_WX) && HAVE_WX
#include <wx/image.h>
#endif
#ifdef _WIN32
#include "Win32Window.h" // warning: crapcode
#else
#endif
CGcontext g_cgcontext;
CGprofile g_cgvProf;
CGprofile g_cgfProf;
RasterFont* s_pfont = NULL;
static bool s_bFullscreen = false;
static int nZBufferRender = 0; // if > 0, then use zbuffer render, and count down.
// A framebuffer is a set of render targets: a color and a z buffer. They can be either RenderBuffers or Textures.
static GLuint s_uFramebuffer = 0;
// The size of these should be a (not necessarily even) multiple of the EFB size, 640x528, but isn'.t
static GLuint s_RenderTarget = 0;
static GLuint s_DepthTarget = 0;
static GLuint s_ZBufferTarget = 0;
static bool s_bATIDrawBuffers = false;
static bool s_bHaveStencilBuffer = false;
static bool s_bHaveFramebufferBlit = false;
static volatile bool s_bScreenshot = false;
static Common::CriticalSection s_criticalScreenshot;
static std::string s_sScreenshotName;
static Renderer::RenderMode s_RenderMode = Renderer::RM_Normal;
bool g_bBlendSeparate = false;
int frameCount;
static int s_fps = 0;
// These STAY CONSTANT during execution, no matter how much you resize the game window.
static int s_targetwidth; // Size of render buffer FBO.
static int s_targetheight;
static u32 s_blendMode;
void HandleCgError(CGcontext ctx, CGerror err, void *appdata);
static const GLenum glSrcFactors[8] =
{
GL_ZERO,
GL_ONE,
GL_DST_COLOR,
GL_ONE_MINUS_DST_COLOR,
GL_SRC_ALPHA,
GL_ONE_MINUS_SRC_ALPHA,
GL_DST_ALPHA,
GL_ONE_MINUS_DST_ALPHA
};
static const GLenum glDestFactors[8] = {
GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR,
GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA
};
bool Renderer::Init()
{
bool bSuccess = true;
s_blendMode = 0;
GLint numvertexattribs = 0;
GLenum err = GL_NO_ERROR;
g_cgcontext = cgCreateContext();
cgGetError();
cgSetErrorHandler(HandleCgError, NULL);
// Look for required extensions.
const char *ptoken = (const char*)glGetString(GL_EXTENSIONS);
if (!ptoken)
{
PanicAlert("Failed to get OpenGL extension string. Do you have OpenGL drivers installed?");
return false;
}
INFO_LOG(VIDEO, "Supported OpenGL Extensions:\n");
INFO_LOG(VIDEO, ptoken); // write to the log file
INFO_LOG(VIDEO, "\n");
if (GLEW_EXT_blend_func_separate && GLEW_EXT_blend_equation_separate)
g_bBlendSeparate = true;
// Checks if it ONLY has the ATI_draw_buffers extension, some have both
if (GLEW_ATI_draw_buffers && !GLEW_ARB_draw_buffers)
s_bATIDrawBuffers = true;
s_bFullscreen = g_Config.bFullscreen;
glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &numvertexattribs);
if (numvertexattribs < 11) {
ERROR_LOG(VIDEO, "*********\nGPU: OGL ERROR: Number of attributes %d not enough\nGPU: *********\nDoes your video card support OpenGL 2.x?", numvertexattribs);
bSuccess = false;
}
// Init extension support.
if (glewInit() != GLEW_OK) {
ERROR_LOG(VIDEO, "glewInit() failed!\nDoes your video card support OpenGL 2.x?");
return false;
}
if (!GLEW_EXT_framebuffer_object) {
ERROR_LOG(VIDEO, "*********\nGPU: ERROR: Need GL_EXT_framebufer_object for multiple render targets\nGPU: *********\nDoes your video card support OpenGL 2.x?");
bSuccess = false;
}
if (!GLEW_EXT_secondary_color) {
ERROR_LOG(VIDEO, "*********\nGPU: OGL ERROR: Need GL_EXT_secondary_color\nGPU: *********\nDoes your video card support OpenGL 2.x?");
bSuccess = false;
}
s_bHaveFramebufferBlit = GLEW_EXT_framebuffer_blit ? true : false;
if (!bSuccess)
return false;
#ifdef _WIN32
if (WGLEW_EXT_swap_control)
wglSwapIntervalEXT(0);
else
ERROR_LOG(VIDEO, "no support for SwapInterval (framerate clamped to monitor refresh rate)\nDoes your video card support OpenGL 2.x?");
#elif defined(HAVE_X11) && HAVE_X11
if (glXSwapIntervalSGI)
glXSwapIntervalSGI(0);
else
ERROR_LOG(VIDEO, "no support for SwapInterval (framerate clamped to monitor refresh rate)\n");
#else
//TODO
#endif
// check the max texture width and height
GLint max_texture_size;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint *)&max_texture_size);
if (max_texture_size < 1024) {
ERROR_LOG(VIDEO, "GL_MAX_TEXTURE_SIZE too small at %i - must be at least 1024", max_texture_size);
}
GL_REPORT_ERROR();
if (err != GL_NO_ERROR) bSuccess = false;
if (glDrawBuffers == NULL && !GLEW_ARB_draw_buffers)
glDrawBuffers = glDrawBuffersARB;
glGenFramebuffersEXT(1, (GLuint *)&s_uFramebuffer);
if (s_uFramebuffer == 0) {
ERROR_LOG(VIDEO, "failed to create the renderbuffer\nDoes your video card support OpenGL 2.x?");
}
_assert_(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
// The size of the framebuffer targets should really NOT be the size of the OpenGL viewport.
// The EFB is larger than 640x480 - in fact, it's 640x528, give or take a couple of lines.
// So the below is wrong.
// This should really be grabbed from config rather than from OpenGL.
s_targetwidth = (int)OpenGL_GetBackbufferWidth();
s_targetheight = (int)OpenGL_GetBackbufferHeight();
// Compensate height of render target for scaling, so that we get something close to the correct number of
// vertical pixels.
s_targetheight *= 528.0 / 480.0;
// Ensure a minimum target size so that the native res target always fits.
if (s_targetwidth < EFB_WIDTH)
s_targetwidth = EFB_WIDTH;
if (s_targetheight < EFB_HEIGHT)
s_targetheight = EFB_HEIGHT;
// Create the framebuffer target texture
glGenTextures(1, (GLuint *)&s_RenderTarget);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_RenderTarget);
// Setup the texture params
// initialize to default
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, s_targetwidth, s_targetheight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (glGetError() != GL_NO_ERROR) {
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
GL_REPORT_ERROR();
}
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
GL_REPORT_ERROR();
GLint nMaxMRT = 0;
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &nMaxMRT);
if (nMaxMRT > 1)
{
// Create zbuffer target.
glGenTextures(1, (GLuint *)&s_ZBufferTarget);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_ZBufferTarget);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, s_targetwidth, s_targetheight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (glGetError() != GL_NO_ERROR) {
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
GL_REPORT_ERROR();
}
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
// create the depth buffer
glGenRenderbuffersEXT(1, &s_DepthTarget);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_DepthTarget);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT, s_targetwidth, s_targetheight);
if (glGetError() != GL_NO_ERROR)
{
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, s_targetwidth, s_targetheight);
s_bHaveStencilBuffer = false;
}
else
{
s_bHaveStencilBuffer = true;
}
GL_REPORT_ERROR();
// Select our render and depth targets as render targets.
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, s_RenderTarget, 0);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, s_DepthTarget);
GL_REPORT_ERROR();
if (s_ZBufferTarget != 0) {
// test to make sure it works
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB, s_ZBufferTarget, 0);
bool bFailed = glGetError() != GL_NO_ERROR || glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT;
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB, 0, 0);
if (bFailed) {
glDeleteTextures(1, (GLuint *)&s_ZBufferTarget);
s_ZBufferTarget = 0;
}
}
if (s_ZBufferTarget == 0)
ERROR_LOG(VIDEO, "Disabling ztarget MRT feature (max MRT = %d)\n", nMaxMRT);
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
nZBufferRender = 0;
GL_REPORT_ERROR();
if (err != GL_NO_ERROR)
bSuccess = false;
s_pfont = new RasterFont();
// load the effect, find the best profiles (if any)
if (cgGLIsProfileSupported(CG_PROFILE_ARBVP1) != CG_TRUE) {
ERROR_LOG(VIDEO, "arbvp1 not supported\n");
return false;
}
if (cgGLIsProfileSupported(CG_PROFILE_ARBFP1) != CG_TRUE) {
ERROR_LOG(VIDEO, "arbfp1 not supported\n");
return false;
}
g_cgvProf = cgGLGetLatestProfile(CG_GL_VERTEX);
g_cgfProf = cgGLGetLatestProfile(CG_GL_FRAGMENT);
cgGLSetOptimalOptions(g_cgvProf);
cgGLSetOptimalOptions(g_cgfProf);
INFO_LOG(VIDEO, "Max buffer sizes: %d %d\n", cgGetProgramBufferMaxSize(g_cgvProf), cgGetProgramBufferMaxSize(g_cgfProf));
int nenvvertparams, nenvfragparams, naddrregisters[2];
glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, (GLint *)&nenvvertparams);
glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, (GLint *)&nenvfragparams);
glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB, (GLint *)&naddrregisters[0]);
glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB, (GLint *)&naddrregisters[1]);
DEBUG_LOG(VIDEO, "Max program env parameters: vert=%d, frag=%d\n", nenvvertparams, nenvfragparams);
DEBUG_LOG(VIDEO, "Max program address register parameters: vert=%d, frag=%d\n", naddrregisters[0], naddrregisters[1]);
if (nenvvertparams < 238)
ERROR_LOG(VIDEO, "Not enough vertex shader environment constants!!\n");
#ifndef _DEBUG
cgGLSetDebugMode(GL_FALSE);
#endif
if (cgGetError() != CG_NO_ERROR) {
ERROR_LOG(VIDEO, "cg error\n");
return false;
}
s_RenderMode = Renderer::RM_Normal;
if (!InitializeGL())
return false;
XFB_Init();
return glGetError() == GL_NO_ERROR && bSuccess;
}
void Renderer::Shutdown(void)
{
delete s_pfont;
s_pfont = 0;
XFB_Shutdown();
if (g_cgcontext) {
cgDestroyContext(g_cgcontext);
g_cgcontext = 0;
}
if (s_RenderTarget) {
glDeleteTextures(1, &s_RenderTarget);
s_RenderTarget = 0;
}
if (s_DepthTarget) {
glDeleteRenderbuffersEXT(1, &s_DepthTarget);
s_DepthTarget = 0;
}
if (s_uFramebuffer) {
glDeleteFramebuffersEXT(1, &s_uFramebuffer);
s_uFramebuffer = 0;
}
}
bool Renderer::InitializeGL()
{
glStencilFunc(GL_ALWAYS, 0, 0);
glBlendFunc(GL_ONE, GL_ONE);
glViewport(0, 0, GetTargetWidth(), GetTargetHeight()); // Reset The Current Viewport
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glShadeModel(GL_SMOOTH);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glDepthFunc(GL_LEQUAL);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4); // 4-byte pixel alignment
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // perspective correct interpolation of colors and tex coords
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST);
glDisable(GL_STENCIL_TEST);
glEnable(GL_SCISSOR_TEST);
// Do we really need to set this initial glScissor() value? Wont it be called all the time while the game is running?
//glScissor(0, 0, (int)OpenGL_GetWidth(), (int)OpenGL_GetHeight());
glBlendColorEXT(0, 0, 0, 0.5f);
glClearDepth(1.0f);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// legacy multitexturing: select texture channel only.
glActiveTexture(GL_TEXTURE0);
glClientActiveTexture(GL_TEXTURE0);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GLenum err = GL_NO_ERROR;
GL_REPORT_ERROR();
return err == GL_NO_ERROR;
}
//////////////////////////////////////////////////////////////////////////////////////
// Return the rendering window width and height
// ------------------------
int Renderer::GetTargetWidth()
{
return (g_Config.bNativeResolution ? EFB_WIDTH : s_targetwidth);
}
int Renderer::GetTargetHeight()
{
return (g_Config.bNativeResolution ? EFB_HEIGHT : s_targetheight);
}
float Renderer::GetTargetScaleX()
{
return (float)GetTargetWidth() / (float)EFB_WIDTH;
}
float Renderer::GetTargetScaleY()
{
return (float)GetTargetHeight() / (float)EFB_HEIGHT;
}
/////////////////////////////
void Renderer::SetRenderTarget(GLuint targ)
{
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB,
targ != 0 ? targ : s_RenderTarget, 0);
}
void Renderer::SetDepthTarget(GLuint targ)
{
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT,
targ != 0 ? targ : s_DepthTarget);
}
void Renderer::SetFramebuffer(GLuint fb)
{
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT,
fb != 0 ? fb : s_uFramebuffer);
}
GLuint Renderer::GetRenderTarget()
{
return s_RenderTarget;
}
GLuint Renderer::GetZBufferTarget()
{
return nZBufferRender > 0 ? s_ZBufferTarget : 0;
}
void Renderer::ResetGLState()
{
// Gets us to a reasonably sane state where it's possible to do things like
// image copies with textured quads, etc.
glDisable(GL_SCISSOR_TEST);
glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
glDisable(GL_BLEND);
glDepthMask(GL_FALSE);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glDisable(GL_VERTEX_PROGRAM_ARB);
glDisable(GL_FRAGMENT_PROGRAM_ARB);
}
void Renderer::RestoreGLState()
{
// Gets us back into a more game-like state.
glEnable(GL_SCISSOR_TEST);
if (bpmem.genMode.cullmode > 0) glEnable(GL_CULL_FACE);
if (bpmem.zmode.testenable) glEnable(GL_DEPTH_TEST);
if (bpmem.zmode.updateenable) glDepthMask(GL_TRUE);
glEnable(GL_VERTEX_PROGRAM_ARB);
glEnable(GL_FRAGMENT_PROGRAM_ARB);
SetColorMask();
SetBlendMode(true);
}
void Renderer::SetColorMask()
{
if (bpmem.blendmode.alphaupdate && bpmem.blendmode.colorupdate)
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
else if (bpmem.blendmode.alphaupdate)
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
else if (bpmem.blendmode.colorupdate)
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE);
else
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
}
void Renderer::SetBlendMode(bool forceUpdate)
{
// blend mode bit mask
// 0 - blend enable
// 1 - dst alpha enable
// 2 - reverse subtract enable (else add)
// 3-5 - srcRGB function
// 6-8 - dstRGB function
// 9-16 - dstAlpha
u32 newval = bpmem.blendmode.subtract << 2;
if (g_bBlendSeparate) {
newval |= bpmem.dstalpha.enable ? 3 : 0;
newval |= bpmem.dstalpha.alpha << 9;
}
if (bpmem.blendmode.blendenable) {
newval |= 1;
if (bpmem.blendmode.subtract) {
newval |= 0x0048; // src 1 dst 1
} else {
newval |= bpmem.blendmode.srcfactor << 3;
newval |= bpmem.blendmode.dstfactor << 6;
}
} else {
newval |= 0x0008; // src 1 dst 0
}
u32 changes = forceUpdate ? 0xFFFFFFFF : newval ^ s_blendMode;
if (changes & 1) {
newval & 1 ? glEnable(GL_BLEND) : glDisable(GL_BLEND);
}
bool dstAlphaEnable = g_bBlendSeparate && newval & 2;
if (changes & 6) {
// dst alpha enable or subtract enable change
if (dstAlphaEnable)
glBlendEquationSeparate(newval & 4 ? GL_FUNC_REVERSE_SUBTRACT : GL_FUNC_ADD, GL_FUNC_ADD);
else
glBlendEquation(newval & 4 ? GL_FUNC_REVERSE_SUBTRACT : GL_FUNC_ADD);
}
if (changes & 0x1FA) {
// dst alpha enable or blend RGB change
if (dstAlphaEnable)
glBlendFuncSeparate(glSrcFactors[(newval >> 3) & 7], glDestFactors[(newval >> 6) & 7], GL_CONSTANT_ALPHA, GL_ZERO);
else
glBlendFunc(glSrcFactors[(newval >> 3) & 7], glDestFactors[(newval >> 6) & 7]);
}
if (dstAlphaEnable && changes & 0x1FE00) {
// dst alpha color change
glBlendColor(0, 0, 0, (float)bpmem.dstalpha.alpha / 255.0f);
}
s_blendMode = newval;
}
////////////////////////////////////////////////////////////////////////////////////////////
// Call browser: OpcodeDecoding.cpp ExecuteDisplayList > Decode() > LoadBPReg()
// case 0x52 > SetScissorRect()
// ---------------
// This function handles the OpenGL glScissor() function
// ---------------
// bpmem.scissorTL.x, y = 342x342
// bpmem.scissorBR.x, y = 981x821
// Renderer::GetTargetHeight() = the fixed ini file setting
// donkopunchstania - it appears scissorBR is the bottom right pixel inside the scissor box
// therefore the width and height are (scissorBR + 1) - scissorTL
// ---------------
bool Renderer::SetScissorRect()
{
int xoff = bpmem.scissorOffset.x * 2 - 342;
int yoff = bpmem.scissorOffset.y * 2 - 342;
float MValueX = GetTargetScaleX();
float MValueY = GetTargetScaleY();
float rc_left = (float)bpmem.scissorTL.x - xoff - 342; // left = 0
rc_left *= MValueX;
if (rc_left < 0) rc_left = 0;
float rc_top = (float)bpmem.scissorTL.y - yoff - 342; // right = 0
rc_top *= MValueY;
if (rc_top < 0) rc_top = 0;
float rc_right = (float)bpmem.scissorBR.x - xoff - 341; // right = 640
rc_right *= MValueX;
if (rc_right > EFB_WIDTH * MValueX) rc_right = EFB_WIDTH * MValueX;
float rc_bottom = (float)bpmem.scissorBR.y - yoff - 341; // bottom = 480
rc_bottom *= MValueY;
if (rc_bottom > EFB_HEIGHT * MValueY) rc_bottom = EFB_HEIGHT * MValueY;
/*LOG(VIDEO, "Scissor: lt=(%d,%d), rb=(%d,%d,%i), off=(%d,%d)\n",
rc_left, rc_top,
rc_right, rc_bottom, Renderer::GetTargetHeight(),
xoff, yoff
);*/
// Check that the coordinates are good
if (rc_right >= rc_left && rc_bottom >= rc_top)
{
glScissor(
(int)rc_left, // x = 0 for example
Renderer::GetTargetHeight() - (int)(rc_bottom), // y = 0 for example
(int)(rc_right-rc_left), // width = 640 for example
(int)(rc_bottom-rc_top) // height = 480 for example
);
return true;
}
return false;
}
bool Renderer::IsUsingATIDrawBuffers()
{
return s_bATIDrawBuffers;
}
bool Renderer::HaveStencilBuffer()
{
return s_bHaveStencilBuffer;
}
void Renderer::SetZBufferRender()
{
nZBufferRender = 10; // give it 10 frames
GLenum s_drawbuffers[2] = {
GL_COLOR_ATTACHMENT0_EXT,
GL_COLOR_ATTACHMENT1_EXT
};
glDrawBuffers(2, s_drawbuffers);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB, s_ZBufferTarget, 0);
_assert_(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT);
}
void Renderer::FlushZBufferAlphaToTarget()
{
ResetGLState();
SetRenderTarget(0);
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
glViewport(0, 0, GetTargetWidth(), GetTargetHeight());
// texture map s_RenderTargets[s_curtarget] onto the main buffer
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_ZBufferTarget);
TextureMngr::EnableTexRECT(0);
// disable all other stages
for (int i = 1; i < 8; ++i)
TextureMngr::DisableStage(i);
GL_REPORT_ERRORD();
// setup the stencil to only accept pixels that have been written
glStencilFunc(GL_EQUAL, 1, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
// TODO: This code should not have to bother with stretchtofit checking -
// all necessary scale initialization should be done elsewhere.
// TODO: Investigate BlitFramebufferEXT.
if (g_Config.bNativeResolution)
{
//TODO: Do Correctly in a bit
float FactorW = 640.f / (float)OpenGL_GetBackbufferWidth();
float FactorH = 480.f / (float)OpenGL_GetBackbufferHeight();
float Max = (FactorW < FactorH) ? FactorH : FactorW;
float Temp = 1.0f / Max;
FactorW *= Temp;
FactorH *= Temp;
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(-FactorW,-FactorH);
glTexCoord2f(0, (float)GetTargetHeight()); glVertex2f(-FactorW,FactorH);
glTexCoord2f((float)GetTargetWidth(), (float)GetTargetHeight()); glVertex2f(FactorW,FactorH);
glTexCoord2f((float)GetTargetWidth(), 0); glVertex2f(FactorW,-FactorH);
glEnd();
}
else
{
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(-1,-1);
glTexCoord2f(0, (float)(GetTargetHeight())); glVertex2f(-1,1);
glTexCoord2f((float)(GetTargetWidth()), (float)(GetTargetHeight())); glVertex2f(1,1);
glTexCoord2f((float)(GetTargetWidth()), 0); glVertex2f(1,-1);
glEnd();
}
GL_REPORT_ERRORD();
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
RestoreGLState();
}
void Renderer::SetRenderMode(RenderMode mode)
{
if (!s_bHaveStencilBuffer && mode == RM_ZBufferAlpha)
mode = RM_ZBufferOnly;
if (s_RenderMode == mode)
return;
if (mode == RM_Normal) {
// flush buffers
if (s_RenderMode == RM_ZBufferAlpha) {
FlushZBufferAlphaToTarget();
glDisable(GL_STENCIL_TEST);
}
SetColorMask();
SetRenderTarget(0);
SetZBufferRender();
GL_REPORT_ERRORD();
}
else if (s_RenderMode == RM_Normal) {
// setup buffers
_assert_(GetZBufferTarget() && bpmem.zmode.updateenable);
if (mode == RM_ZBufferAlpha) {
glEnable(GL_STENCIL_TEST);
glClearStencil(0);
glClear(GL_STENCIL_BUFFER_BIT);
glStencilFunc(GL_ALWAYS, 1, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
}
glDrawBuffer(GL_COLOR_ATTACHMENT1_EXT);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
GL_REPORT_ERRORD();
}
else {
_assert_(GetZBufferTarget());
_assert_(s_bHaveStencilBuffer);
if (mode == RM_ZBufferOnly) {
// flush and remove stencil
_assert_(s_RenderMode == RM_ZBufferAlpha);
FlushZBufferAlphaToTarget();
glDisable(GL_STENCIL_TEST);
SetRenderTarget(s_ZBufferTarget);
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
GL_REPORT_ERRORD();
}
else {
_assert_(mode == RM_ZBufferAlpha && s_RenderMode == RM_ZBufferOnly);
// setup stencil
glEnable(GL_STENCIL_TEST);
glClearStencil(0);
glClear(GL_STENCIL_BUFFER_BIT);
glStencilFunc(GL_ALWAYS, 1, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
}
}
s_RenderMode = mode;
}
Renderer::RenderMode Renderer::GetRenderMode()
{
return s_RenderMode;
}
void ComputeBackbufferRectangle(TRectangle *rc)
{
// -----------------------------------------------------------------------
// GLViewPort variables
// ------------------
// Work with float values for the XFB supplement and aspect ratio functions. These are default
// values that are used if the XFB supplement and the keep aspect ratio function are unused.
float FloatGLWidth = (float)OpenGL_GetBackbufferWidth();
float FloatGLHeight = (float)OpenGL_GetBackbufferHeight();
float FloatXOffset = 0;
float FloatYOffset = 0;
// The rendering window size
const float WinWidth = FloatGLWidth;
const float WinHeight = FloatGLHeight;
// Handle aspect ratio.
if (g_Config.bKeepAR43 || g_Config.bKeepAR169)
{
// The rendering window aspect ratio as a proportion of the 4:3 or 16:9 ratio
float Ratio = (WinWidth / WinHeight) / (g_Config.bKeepAR43 ? (4.0f / 3.0f) : (16.0f / 9.0f));
// Check if height or width is the limiting factor. If ratio > 1 the picture is to wide and have to limit the width.
if (Ratio > 1)
{
// Scale down and center in the X direction.
FloatGLWidth /= Ratio;
FloatXOffset = (WinWidth - FloatGLWidth) / 2.0f;
}
// The window is too high, we have to limit the height
else
{
// Scale down and center in the Y direction.
FloatGLHeight *= Ratio;
FloatYOffset = FloatYOffset + (WinHeight - FloatGLHeight) / 2.0f;
}
}
// -----------------------------------------------------------------------
/* Crop the picture from 4:3 to 5:4 or from 16:9 to 16:10. */
// Output: FloatGLWidth, FloatGLHeight, FloatXOffset, FloatYOffset
// ------------------
if ((g_Config.bKeepAR43 || g_Config.bKeepAR169) && g_Config.bCrop)
{
float Ratio = g_Config.bKeepAR43 ? ((4.0 / 3.0) / (5.0 / 4.0)) : (((16.0 / 9.0) / (16.0 / 10.0)));
// The width and height we will add (calculate this before FloatGLWidth and FloatGLHeight is adjusted)
float IncreasedWidth = (Ratio - 1.0) * FloatGLWidth;
float IncreasedHeight = (Ratio - 1.0) * FloatGLHeight;
// The new width and height
FloatGLWidth = FloatGLWidth * Ratio;
FloatGLHeight = FloatGLHeight * Ratio;
// We need this adjustment too, the -6 adjustment was needed to never show any pixels outside the actual picture
// The result in offset in actual pixels is only around 1 or 2 pixels in a 1280 x 1024 resolution. In 1280 x 1024 the
// picture is only about 2 to 4 pixels (1 up and 1 down for example) to big to produce a minimal margin
// of error, while rather having a full screen and hiding one pixel, than having a one pixel black border. But it seems
// to be just enough in all games I tried.
float WidthRatio = ((float)FloatGLWidth - 6.0) / 640.0;
float HeightRatio = ((float)FloatGLHeight - 6.0) / 480.0;
// Adjust the X and Y offset
FloatXOffset = FloatXOffset - (IncreasedWidth / 2.0 / WidthRatio / Ratio);
FloatYOffset = FloatYOffset - (IncreasedHeight / 2.0 / HeightRatio / Ratio);
//Console::Print("Crop Ratio:%1.2f IncreasedHeight:%3.0f YOffset:%3.0f\n", Ratio, IncreasedHeight, FloatYOffset);
}
// Because there is no round() function we use round(float) = floor(float + 0.5) instead
int XOffset = floor(FloatXOffset + 0.5);
int YOffset = floor(FloatYOffset + 0.5);
rc->left = XOffset;
rc->top = YOffset;
rc->right = XOffset + ceil(FloatGLWidth);
rc->bottom = YOffset + ceil(FloatGLHeight);
}
//////////////////////////////////////////////////////////////////////////////////////
// This function has the final picture if the XFB functions are not used. We adjust the aspect ratio here.
// ----------------------
void Renderer::Swap(const TRectangle& rc)
{
OpenGL_Update(); // just updates the render window position and the backbuffer size
DVSTARTPROFILE();
Renderer::SetRenderMode(Renderer::RM_Normal);
// Blit the FBO to do Anti-Aliasing
// Not working?
// glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
// glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
// glBlitFramebufferEXT(0, 0, 640, 480, 0, 0, OpenGL_GetWidth(), OpenGL_GetHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST);
// glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
// render to the real buffer now
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the backbuffer
// -----------------------------------------------------------------------
// Show the finished picture
// --------------------
// Reset GL state
ResetGLState();
// Texture map s_RenderTargets[s_curtarget] onto the main buffer
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_RenderTarget);
// Use linear filtering.
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
TextureMngr::EnableTexRECT(0);
// Disable all other stages
for (int i = 1; i < 8; ++i)
TextureMngr::DisableStage(i);
TRectangle back_rc;
ComputeBackbufferRectangle(&back_rc);
// Update GLViewPort
glViewport(back_rc.left, back_rc.top,
back_rc.right - back_rc.left, back_rc.bottom - back_rc.top);
GL_REPORT_ERRORD();
// Copy the framebuffer to screen.
// TODO: Use glBlitFramebufferEXT.
float u_max;
float v_min = 0.f;
float v_max;
if (g_Config.bAutoScale) {
u_max = (rc.right - rc.left);
v_min = (float)GetTargetHeight() - (rc.bottom - rc.top);
v_max = (float)GetTargetHeight();
} else {
u_max = (float)GetTargetWidth();
v_max = (float)GetTargetHeight(); // TODO - when we change the target height to 528, this will have to change.
}
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glBegin(GL_QUADS);
glTexCoord2f(0, v_min); glVertex2f(-1, -1);
glTexCoord2f(0, v_max); glVertex2f(-1, 1);
glTexCoord2f(u_max, v_max); glVertex2f( 1, 1);
glTexCoord2f(u_max, v_min); glVertex2f( 1, -1);
glEnd();
// Restore filtering.
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
// Wireframe
if (g_Config.bWireFrame)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
TextureMngr::DisableStage(0);
// -------------------------------------
// Take screenshot, if requested
if (s_bScreenshot) {
s_criticalScreenshot.Enter();
if (SaveRenderTarget(s_sScreenshotName.c_str(), OpenGL_GetBackbufferWidth(), OpenGL_GetBackbufferHeight())) {
char msg[255];
sprintf(msg, "Saved %s\n", s_sScreenshotName.c_str());
OSD::AddMessage(msg, 2000);
} else {
PanicAlert("Error capturing or saving screenshot.");
}
s_sScreenshotName = "";
s_bScreenshot = false;
s_criticalScreenshot.Leave();
}
// Place messages on the picture, then copy it to the screen
SwapBuffers();
RestoreGLState();
GL_REPORT_ERRORD();
g_Config.iSaveTargetId = 0;
// For testing zbuffer targets.
// Renderer::SetZBufferRender();
// SaveTexture("tex.tga", GL_TEXTURE_RECTANGLE_ARB, s_ZBufferTarget, GetTargetWidth(), GetTargetHeight());
}
////////////////////////////////////////////////
void Renderer::DrawDebugText()
{
// Draw various messages on the screen, like FPS, statistics, etc.
char debugtext_buffer[8192];
char *p = debugtext_buffer;
p[0] = 0;
if (g_Config.bShowFPS)
{
p+=sprintf(p, "FPS: %d\n", s_fps);
}
if (g_Config.bOverlayStats) {
p+=sprintf(p,"textures created: %i\n",stats.numTexturesCreated);
p+=sprintf(p,"textures alive: %i\n",stats.numTexturesAlive);
p+=sprintf(p,"pshaders created: %i\n",stats.numPixelShadersCreated);
p+=sprintf(p,"pshaders alive: %i\n",stats.numPixelShadersAlive);
p+=sprintf(p,"vshaders created: %i\n",stats.numVertexShadersCreated);
p+=sprintf(p,"vshaders alive: %i\n",stats.numVertexShadersAlive);
p+=sprintf(p,"dlists called: %i\n",stats.numDListsCalled);
p+=sprintf(p,"dlists called(f): %i\n",stats.thisFrame.numDListsCalled);
// not used.
//p+=sprintf(p,"dlists created: %i\n",stats.numDListsCreated);
//p+=sprintf(p,"dlists alive: %i\n",stats.numDListsAlive);
//p+=sprintf(p,"strip joins: %i\n",stats.numJoins);
p+=sprintf(p,"primitives: %i\n",stats.thisFrame.numPrims);
p+=sprintf(p,"primitive joins: %i\n",stats.thisFrame.numPrimitiveJoins);
p+=sprintf(p,"buffer splits: %i\n",stats.thisFrame.numBufferSplits);
p+=sprintf(p,"draw calls: %i\n",stats.thisFrame.numDrawCalls);
p+=sprintf(p,"primitives (DL): %i\n",stats.thisFrame.numDLPrims);
p+=sprintf(p,"XF loads: %i\n",stats.thisFrame.numXFLoads);
p+=sprintf(p,"XF loads (DL): %i\n",stats.thisFrame.numXFLoadsInDL);
p+=sprintf(p,"CP loads: %i\n",stats.thisFrame.numCPLoads);
p+=sprintf(p,"CP loads (DL): %i\n",stats.thisFrame.numCPLoadsInDL);
p+=sprintf(p,"BP loads: %i\n",stats.thisFrame.numBPLoads);
p+=sprintf(p,"BP loads (DL): %i\n",stats.thisFrame.numBPLoadsInDL);
p+=sprintf(p,"vertex loaders: %i\n",stats.numVertexLoaders);
std::string text1;
VertexLoaderManager::AppendListToString(&text1);
// TODO: Check for buffer overflow
p+=sprintf(p,"%s",text1.c_str());
}
if (g_Config.bOverlayBlendStats)
{
p+=sprintf(p,"LogicOp Mode: %i\n", stats.logicOpMode);
p+=sprintf(p,"Source Factor: %i\n", stats.srcFactor);
p+=sprintf(p,"Destination Factor: %i\n", stats.dstFactor);
p+=sprintf(p,"Dithering: %s\n", stats.dither==1 ? "Enabled" : "Disabled");
p+=sprintf(p,"Color Update: %s\n", stats.colorUpdate==1 ? "Enabled" : "Disabled");
p+=sprintf(p,"Alpha Update: %s\n", stats.alphaUpdate==1 ? "Enabled" : "Disabled");
p+=sprintf(p,"Dst Alpha Enabled: %s\n", stats.dstAlphaEnable==1 ? "Enabled" : "Disabled");
p+=sprintf(p,"Dst Alpha: %08x\n", stats.dstAlpha);
}
if (g_Config.bOverlayProjStats)
{
p+=sprintf(p,"Projection #: X for Raw 6=0 (X for Raw 6!=0)\n\n");
p+=sprintf(p,"Projection 0: %f (%f) Raw 0: %f\n", stats.gproj_0, stats.g2proj_0, stats.proj_0);
p+=sprintf(p,"Projection 1: %f (%f)\n", stats.gproj_1, stats.g2proj_1);
p+=sprintf(p,"Projection 2: %f (%f) Raw 1: %f\n", stats.gproj_2, stats.g2proj_2, stats.proj_1);
p+=sprintf(p,"Projection 3: %f (%f)\n\n", stats.gproj_3, stats.g2proj_3);
p+=sprintf(p,"Projection 4: %f (%f)\n", stats.gproj_4, stats.g2proj_4);
p+=sprintf(p,"Projection 5: %f (%f) Raw 2: %f\n", stats.gproj_5, stats.g2proj_5, stats.proj_2);
p+=sprintf(p,"Projection 6: %f (%f) Raw 3: %f\n", stats.gproj_6, stats.g2proj_6, stats.proj_3);
p+=sprintf(p,"Projection 7: %f (%f)\n\n", stats.gproj_7, stats.g2proj_7);
p+=sprintf(p,"Projection 8: %f (%f)\n", stats.gproj_8, stats.g2proj_8);
p+=sprintf(p,"Projection 9: %f (%f)\n", stats.gproj_9, stats.g2proj_9);
p+=sprintf(p,"Projection 10: %f (%f) Raw 4: %f\n\n", stats.gproj_10, stats.g2proj_10, stats.proj_4);
p+=sprintf(p,"Projection 11: %f (%f) Raw 5: %f\n\n", stats.gproj_11, stats.g2proj_11, stats.proj_5);
p+=sprintf(p,"Projection 12: %f (%f)\n", stats.gproj_12, stats.g2proj_12);
p+=sprintf(p,"Projection 13: %f (%f)\n", stats.gproj_13, stats.g2proj_13);
p+=sprintf(p,"Projection 14: %f (%f)\n", stats.gproj_14, stats.g2proj_14);
p+=sprintf(p,"Projection 15: %f (%f)\n", stats.gproj_15, stats.g2proj_15);
}
// Render a shadow, and then the text.
Renderer::RenderText(debugtext_buffer, 21, 21, 0xDD000000);
Renderer::RenderText(debugtext_buffer, 20, 20, 0xFF00FFFF);
}
//////////////////////////////////////////////////////////////////////////////////////
// We can now draw whatever we want on top of the picture. Then we copy the final picture to the output.
// ----------------------
void Renderer::SwapBuffers()
{
// Count FPS.
static int fpscount = 0;
static unsigned long lasttime;
++fpscount;
if (timeGetTime() - lasttime > 1000)
{
lasttime = timeGetTime();
s_fps = fpscount;
fpscount = 0;
}
DrawDebugText();
OSD::DrawMessages();
// -----------------------------
#if defined(DVPROFILE)
if (g_bWriteProfile) {
//g_bWriteProfile = 0;
static int framenum = 0;
const int UPDATE_FRAMES = 8;
if (++framenum >= UPDATE_FRAMES) {
DVProfWrite("prof.txt", UPDATE_FRAMES);
DVProfClear();
framenum = 0;
}
}
#endif
// Copy the rendered frame to the real window
OpenGL_SwapBuffers();
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT);
GL_REPORT_ERRORD();
// Clean out old stuff from caches
VertexShaderCache::ProgressiveCleanup();
PixelShaderCache::ProgressiveCleanup();
TextureMngr::ProgressiveCleanup();
frameCount++;
// New frame
stats.ResetFrame();
// Render to the framebuffer.
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
if (nZBufferRender > 0) {
if (--nZBufferRender == 0) {
// turn off
nZBufferRender = 0;
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB, 0, 0);
Renderer::SetRenderMode(RM_Normal); // turn off any zwrites
}
}
}
void Renderer::RenderText(const char* pstr, int left, int top, u32 color)
{
int nBackbufferWidth = (int)OpenGL_GetBackbufferWidth();
int nBackbufferHeight = (int)OpenGL_GetBackbufferHeight();
glColor4f(((color>>16) & 0xff)/255.0f, ((color>> 8) & 0xff)/255.0f,
((color>> 0) & 0xff)/255.0f, ((color>>24) & 0xFF)/255.0f);
s_pfont->printMultilineText(pstr,
left * 2.0f / (float)nBackbufferWidth - 1,
1 - top * 2.0f / (float)nBackbufferHeight,
0, nBackbufferWidth, nBackbufferHeight);
}
void Renderer::SetScreenshot(const char *filename)
{
s_criticalScreenshot.Enter();
s_sScreenshotName = filename;
s_bScreenshot = true;
s_criticalScreenshot.Leave();
}
bool Renderer::SaveRenderTarget(const char *filename, int w, int h)
{
u8 *data = (u8 *)malloc(3 * w * h);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadPixels(0, 0, w, h, GL_RGB, GL_UNSIGNED_BYTE, data);
if (glGetError() != GL_NO_ERROR)
return false;
// Flip image upside down. Damn OpenGL.
for (int y = 0; y < h / 2; y++)
{
for(int x = 0; x < w; x++)
{
std::swap(data[(y * w + x) * 3], data[((h - 1 - y) * w + x) * 3]);
std::swap(data[(y * w + x) * 3 + 1], data[((h - 1 - y) * w + x) * 3 + 1]);
std::swap(data[(y * w + x) * 3 + 2], data[((h - 1 - y) * w + x) * 3 + 2]);
}
}
#if defined(HAVE_WX) && HAVE_WX
wxImage a(w, h, data);
a.SaveFile(wxString::FromAscii(filename), wxBITMAP_TYPE_BMP);
bool result = true;
#else
bool result = SaveTGA(filename, w, h, data);
free(data);
#endif
return result;
}
//////////////////////////////////////////////////////////////////////////////////////
// Function: This function does not have the final picture. Use Renderer::Swap() to adjust the final picture.
// Call schedule: Called from VertexShaderManager
// ----------------------
void UpdateViewport()
{
// -----------------------------------------------------------------------
// Logging
// ------------------
// reversed gxsetviewport(xorig, yorig, width, height, nearz, farz)
// [0] = width/2
// [1] = height/2
// [2] = 16777215 * (farz - nearz)
// [3] = xorig + width/2 + 342
// [4] = yorig + height/2 + 342
// [5] = 16777215 * farz
/*INFO_LOG(VIDEO, "view: topleft=(%f,%f), wh=(%f,%f), z=(%f,%f)\n",
rawViewport[3]-rawViewport[0]-342, rawViewport[4]+rawViewport[1]-342,
2 * rawViewport[0], 2 * rawViewport[1],
(rawViewport[5] - rawViewport[2]) / 16777215.0f, rawViewport[5] / 16777215.0f);*/
// --------------------------
int scissorXOff = bpmem.scissorOffset.x * 2 - 342;
int scissorYOff = bpmem.scissorOffset.y * 2 - 342;
// -------------------------------------
float MValueX = Renderer::GetTargetScaleX();
float MValueY = Renderer::GetTargetScaleY();
// -----------------------------------------------------------------------
// Stretch picture with increased internal resolution
// ------------------
int GLx = (int)ceil((xfregs.rawViewport[3] - xfregs.rawViewport[0] - 342 - scissorXOff) * MValueX);
int GLy = (int)ceil(Renderer::GetTargetHeight() - ((int)(xfregs.rawViewport[4] - xfregs.rawViewport[1] - 342 - scissorYOff)) * MValueY);
int GLWidth = (int)ceil(abs((int)(2 * xfregs.rawViewport[0])) * MValueX);
int GLHeight = (int)ceil(abs((int)(2 * xfregs.rawViewport[1])) * MValueY);
// -------------------------------------
// Update the view port
glViewport(GLx, GLy, GLWidth, GLHeight);
// GLDepthRange - this could be a source of trouble - see the viewport hacks.
double GLNear = (xfregs.rawViewport[5] - xfregs.rawViewport[2]) / 16777215.0f;
double GLFar = xfregs.rawViewport[5] / 16777215.0f;
glDepthRange(GLNear, GLFar);
// -------------------------------------
// Logging
/*
RECT RcTop, RcParent, RcChild;
HWND Child = EmuWindow::GetWnd();
HWND Parent = GetParent(Child);
HWND Top = GetParent(Parent);
GetWindowRect(Top, &RcTop);
GetWindowRect(Parent, &RcParent);
GetWindowRect(Child, &RcChild);
//Console::ClearScreen();
Console::Print("----------------------------------------------------------------\n");
Console::Print("Top window: X:%03i Y:%03i Width:%03i Height:%03i\n", RcTop.left, RcTop.top, RcTop.right - RcTop.left, RcTop.bottom - RcTop.top);
Console::Print("Parent window: X:%03i Y:%03i Width:%03i Height:%03i\n", RcParent.left, RcParent.top, RcParent.right - RcParent.left, RcParent.bottom - RcParent.top);
Console::Print("Child window: X:%03i Y:%03i Width:%03i Height:%03i\n", RcChild.left, RcChild.top, RcChild.right - RcChild.left, RcChild.bottom - RcChild.top);
Console::Print("----------------------------------------------------------------\n");
Console::Print("Res. MValue: X:%f Y:%f XOffs:%f YOffs:%f\n", OpenGL_GetXmax(), OpenGL_GetYmax(), OpenGL_GetXoff(), OpenGL_GetYoff());
Console::Print("GLViewPort: X:%03i Y:%03i Width:%03i Height:%03i\n", GLx, GLy, GLWidth, GLHeight);
Console::Print("GLDepthRange: Near:%f Far:%f\n", GLNear, GLFar);
Console::Print("GLScissor: X:%03i Y:%03i Width:%03i Height:%03i\n", GLScissorX, GLScissorY, GLScissorW, GLScissorH);
Console::Print("----------------------------------------------------------------\n");
*/
}
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