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Clean up OpenGL code and introduce the Framebuffer Manager. More work is forthcoming; I plan to implement resolution switching (while the game is running) and also multiple virtual XFBs for game-controlled buffer swapping.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3587 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Nolan Check
2009-06-28 23:35:08 +00:00
parent fd47eb7b44
commit 07a767691d
7 changed files with 357 additions and 246 deletions
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278
Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
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@ -54,6 +54,7 @@
#include "OnScreenDisplay.h"
#include "Timer.h"
#include "StringUtil.h"
#include "FramebufferManager.h"
#include "main.h" // Local
#ifdef _WIN32
@ -92,37 +93,7 @@ static FILE* f_pFrameDump;
static int s_MSAASamples = 1;
static int s_MSAACoverageSamples = 0;
// Normal Mode
//
// By default the depth target is used
// if there is an error creating and attaching it a depth buffer will be used instead
//
// s_RenderTarget is a texture_rect
// s_DepthTarget is a texture_rect
// s_DepthBuffer is a Z renderbuffer
// MSAA mode
// s_uFramebuffer is a FBO
// s_RenderTarget is a MSAA renderbuffer
// s_DepthTarget is a MSAA renderbuffer
//
// s_ResolvedFramebuffer is a FBO
// s_ResolvedRenderTarget is a texture
// s_ResolvedDepthTarget is a texture
// 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;
static GLuint s_uResolvedFramebuffer = 0;
// The size of these should be a (not necessarily even) multiple of the EFB size, 640x528, but isn't.
// These are all texture IDs. Bind them as rect arb textures.
static GLuint s_RenderTarget = 0;
static GLuint s_DepthTarget = 0;
static GLuint s_DepthBuffer = 0;
static GLuint s_ResolvedRenderTarget = 0;
static GLuint s_ResolvedDepthTarget = 0;
// TODO: Move these to FramebufferManager
static TRectangle s_efbSourceRc;
static GLuint s_xfbFramebuffer = 0; // Only used when multisampling is on
static GLuint s_xfbTexture = 0;
@ -145,6 +116,8 @@ static int s_fps = 0;
static int s_targetwidth; // Size of render buffer FBO.
static int s_targetheight;
static FramebufferManager s_framebufferManager;
#ifndef _WIN32
int OSDChoice = 0 , OSDTime = 0, OSDInternalW = 0, OSDInternalH = 0;
#endif
@ -304,19 +277,27 @@ bool Renderer::Init()
WARN_LOG(VIDEO, "ARB_texture_non_power_of_two not supported. This extension is not yet used, though.");
}
// 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.
// JP: Set these to the biggest of the 2x mode and the custom resolution so that the framebuffer
// does not get to be too small
int W = (int)OpenGL_GetBackbufferWidth(), H = (int)OpenGL_GetBackbufferHeight();
s_targetwidth = (1280 >= W) ? 1280 : W;
s_targetheight = (960 >= H) ? 960 : H;
if (g_Config.bNativeResolution)
{
s_targetwidth = g_Config.b2xResolution ? EFB_WIDTH * 2 : EFB_WIDTH;
s_targetheight = g_Config.b2xResolution ? EFB_HEIGHT * 2 : EFB_HEIGHT;
}
else
{
// 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.
// JP: Set these to the biggest of the 2x mode and the custom resolution so that the framebuffer
// does not get to be too small
int W = (int)OpenGL_GetBackbufferWidth(), H = (int)OpenGL_GetBackbufferHeight();
s_targetwidth = (1280 >= W) ? 1280 : W;
s_targetheight = (960 >= H) ? 960 : H;
// 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;
// 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)
@ -330,122 +311,22 @@ bool Renderer::Init()
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, s_targetwidth, s_targetheight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
SetDefaultRectTexParams();
glGenFramebuffersEXT(1, (GLuint *)&s_uFramebuffer);
if (s_uFramebuffer == 0) {
ERROR_LOG(VIDEO, "failed to create the renderbufferDoes your video card support OpenGL 2.x?");
}
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
if (s_MSAASamples <= 1) {
// Create the framebuffer target texture
glGenTextures(1, (GLuint *)&s_RenderTarget);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_RenderTarget);
// Create our main color render target as a texture rectangle of the desired size.
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, s_targetwidth, s_targetheight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
SetDefaultRectTexParams();
// Create the depth target texture
glGenTextures(1, &s_DepthTarget);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_DepthTarget);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_DEPTH_COMPONENT24, s_targetwidth, s_targetheight, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
SetDefaultRectTexParams();
// Our framebuffer object is still bound here. Attach the two render targets, color and depth, to the framebuffer object.
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, s_RenderTarget, 0);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_RECTANGLE_ARB, s_DepthTarget, 0);
GL_REPORT_FBO_ERROR();
bool bFailed = glGetError() != GL_NO_ERROR || glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT;
// Check that the FBO is attached. If there is an error revert to a depth buffer.
if (bFailed) {
ERROR_LOG(VIDEO, "Disabling ztarget feature");
// detach and delete depth texture
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_RECTANGLE_ARB, 0, 0);
glDeleteTextures(1, (GLuint *)&s_DepthTarget);
s_DepthTarget = 0;
// create and attach depth buffer
glGenRenderbuffersEXT(1, (GLuint *)&s_DepthBuffer);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_DepthBuffer);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT, s_targetwidth, s_targetheight);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, s_DepthBuffer);
GL_REPORT_FBO_ERROR();
}
}
else
// Bind it to an XFB framebuffer if MSAA is used
if (s_MSAASamples > 1)
{
// Create XFB framebuffer for transferring the multisampled EFB to the
// XFB texture
glGenFramebuffersEXT(1, &s_xfbFramebuffer);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_xfbFramebuffer);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, s_xfbTexture, 0);
GL_REPORT_FBO_ERROR();
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
// MSAA rendertarget init.
// First set up the boring multisampled rendertarget.
glGenRenderbuffersEXT(1, &s_RenderTarget);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_RenderTarget);
if (s_MSAACoverageSamples) {
glRenderbufferStorageMultisampleCoverageNV(GL_RENDERBUFFER_EXT, s_MSAACoverageSamples, s_MSAASamples, GL_RGBA, s_targetwidth, s_targetheight);
} else {
glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, s_MSAASamples, GL_RGBA, s_targetwidth, s_targetheight);
}
glGenRenderbuffersEXT(1, &s_DepthTarget);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_DepthTarget);
if (s_MSAACoverageSamples) {
glRenderbufferStorageMultisampleCoverageNV(GL_RENDERBUFFER_EXT, s_MSAACoverageSamples, s_MSAASamples, GL_DEPTH_COMPONENT24, s_targetwidth, s_targetheight);
} else {
glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, s_MSAASamples, GL_DEPTH_COMPONENT24, s_targetwidth, s_targetheight);
}
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
// Attach them to our multisampled FBO. The multisampled FBO is still bound here.
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, s_RenderTarget);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, s_DepthTarget);
GL_REPORT_FBO_ERROR();
bool bFailed = glGetError() != GL_NO_ERROR || glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT;
if (bFailed) PanicAlert("Incomplete rt");
// Create our resolve FBO, and bind it.
glGenFramebuffersEXT(1, (GLuint *)&s_uResolvedFramebuffer);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uResolvedFramebuffer);
// Generate the resolve targets.
glGenTextures(1, (GLuint *)&s_ResolvedRenderTarget);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_ResolvedRenderTarget);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, s_targetwidth, s_targetheight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
SetDefaultRectTexParams();
// Generate the resolve targets.
glGenTextures(1, (GLuint *)&s_ResolvedDepthTarget);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_ResolvedDepthTarget);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_DEPTH_COMPONENT24, s_targetwidth, s_targetheight, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
SetDefaultRectTexParams();
// Attach our resolve targets to our resolved FBO.
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, s_ResolvedRenderTarget, 0);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_RECTANGLE_ARB, s_ResolvedDepthTarget, 0);
GL_REPORT_FBO_ERROR();
bFailed = glGetError() != GL_NO_ERROR || glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT;
if (bFailed) PanicAlert("Incomplete rt2");
if (bFailed) {
ERROR_LOG(VIDEO, "AA rendering init failed.");
}
}
if (GL_REPORT_ERROR() != GL_NO_ERROR)
bSuccess = false;
// glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
// Initialize the FramebufferManager
s_framebufferManager.Init(s_targetwidth, s_targetheight, s_MSAASamples, s_MSAACoverageSamples);
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
if (GL_REPORT_ERROR() != GL_NO_ERROR)
@ -501,17 +382,10 @@ void Renderer::Shutdown(void)
g_cgcontext = 0;
}
s_framebufferManager.Shutdown();
// Note: OpenGL delete functions automatically ignore if parameter is 0
glDeleteFramebuffersEXT(1, &s_uFramebuffer);
s_uFramebuffer = 0;
glDeleteTextures(1, &s_RenderTarget);
s_RenderTarget = 0;
glDeleteRenderbuffersEXT(1, &s_DepthTarget);
s_DepthTarget = 0;
glDeleteFramebuffersEXT(1, &s_xfbFramebuffer);
s_xfbFramebuffer = 0;
@ -574,14 +448,12 @@ bool Renderer::InitializeGL()
// Return the rendering window width and height
int Renderer::GetTargetWidth()
{
return (s_bNativeResolution || g_Config.b2xResolution) ?
(s_bNativeResolution ? EFB_WIDTH : EFB_WIDTH * 2) : s_targetwidth;
return s_targetwidth;
}
int Renderer::GetTargetHeight()
{
return (s_bNativeResolution || g_Config.b2xResolution) ?
(s_bNativeResolution ? EFB_HEIGHT : EFB_HEIGHT * 2) : s_targetheight;
return s_targetheight;
}
float Renderer::GetTargetScaleX()
@ -594,22 +466,9 @@ float Renderer::GetTargetScaleY()
return (float)GetTargetHeight() / (float)EFB_HEIGHT;
}
// Various supporting functions
void Renderer::SetRenderTarget(GLuint targ)
{
if (!targ && s_MSAASamples > 1)
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, s_RenderTarget);
else
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB,
targ != 0 ? targ : s_RenderTarget, 0);
}
void Renderer::SetFramebuffer(GLuint fb)
{
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb != 0 ? fb : s_uFramebuffer);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb != 0 ? fb : s_framebufferManager.GetEFBFramebuffer());
}
void Renderer::ResetGLState()
@ -701,60 +560,12 @@ void Renderer::SetBlendMode(bool forceUpdate)
// Apply AA if enabled
GLuint Renderer::ResolveAndGetRenderTarget(const TRectangle &source_rect)
{
if (s_MSAASamples > 1)
{
// Flip the rectangle
TRectangle flipped_rect;
source_rect.FlipYPosition(GetTargetHeight(), &flipped_rect);
flipped_rect.Clamp(0, 0, GetTargetWidth(), GetTargetHeight());
// Do the resolve.
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, s_uResolvedFramebuffer);
glBlitFramebufferEXT(flipped_rect.left, flipped_rect.top, flipped_rect.right, flipped_rect.bottom,
flipped_rect.left, flipped_rect.top, flipped_rect.right, flipped_rect.bottom,
GL_COLOR_BUFFER_BIT, GL_NEAREST);
// Return the resolved target.
return s_ResolvedRenderTarget;
}
else
{
return s_RenderTarget;
}
return s_framebufferManager.GetEFBColorTexture(source_rect);
}
GLuint Renderer::ResolveAndGetDepthTarget(const TRectangle &source_rect)
{
// This logic should be moved elsewhere.
if (s_MSAASamples > 1)
{
// Flip the rectangle
TRectangle flipped_rect;
//source_rect.FlipYPosition(GetTargetHeight(), &flipped_rect);
// donkopunchstania - some bug causes the offsets to be ignored. driver bug?
flipped_rect.top = 0;
flipped_rect.bottom = GetTargetHeight();
flipped_rect.left = 0;
flipped_rect.right = GetTargetWidth();
flipped_rect.Clamp(0, 0, GetTargetWidth(), GetTargetHeight());
// Do the resolve.
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, s_uResolvedFramebuffer);
glBlitFramebufferEXT(flipped_rect.left, flipped_rect.top, flipped_rect.right, flipped_rect.bottom,
flipped_rect.left, flipped_rect.top, flipped_rect.right, flipped_rect.bottom,
GL_DEPTH_BUFFER_BIT, GL_NEAREST);
// Return the resolved target.
return s_ResolvedDepthTarget;
}
else
{
return s_DepthTarget;
}
return s_framebufferManager.GetEFBDepthTexture(source_rect);
}
@ -891,6 +702,7 @@ void Renderer::RenderToXFB(u8* xfbInRam, const TRectangle& sourceRc, u32 dstWidt
Video_UpdateXFB(NULL, 0, 0, 0, FALSE);
}
// TODO: Move this logic to FramebufferManager
if (g_Config.bUseXFB)
{
s_efbSourceRc.left = 0;
@ -909,7 +721,7 @@ void Renderer::RenderToXFB(u8* xfbInRam, const TRectangle& sourceRc, u32 dstWidt
// Cannot use glCopyTexImage2D on multisampled framebuffers, so
// EXT_framebuffer_blit must be used
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_framebufferManager.GetEFBFramebuffer());
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, s_xfbFramebuffer);
glBlitFramebufferEXT(
@ -1033,11 +845,8 @@ void Renderer::Swap()
// Save screenshot
if (s_bScreenshot)
{
// Select source
if (s_MSAASamples > 1)
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uResolvedFramebuffer);
else
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
// TODO: Wrong. The EFB may contain something else by now. We want to read from the XFB.
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_framebufferManager.GetEFBFramebuffer());
s_criticalScreenshot.Enter();
// Save screenshot
@ -1055,11 +864,8 @@ void Renderer::Swap()
#ifdef _WIN32
if (g_Config.bDumpFrames)
{
// Select source
if (s_MSAASamples > 1)
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uResolvedFramebuffer);
else
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
// TODO: Wrong. The EFB may contain something else by now. We want to read from the XFB.
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_framebufferManager.GetEFBFramebuffer());
s_criticalScreenshot.Enter();
int w = s_efbSourceRc.right;