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First version of MSAA code added. No UI yet. No CSAA yet. Doesn't work in Zeldas and Metroids for unknown reason.

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Automatic texture invalidation when using copy efb to ram (fixes weird flickery scanner in metroid 2). 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2617 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
2009-03-08 19:19:51 +00:00
parent c7a45ecf95
commit c6ffcec991
12 changed files with 346 additions and 148 deletions
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283
Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
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@ -73,7 +73,8 @@ static bool s_bFullscreen = false;
static int nZBufferRender = 0; // if > 0, then use zbuffer render, and count down.
static bool MSAA = false;
// 1 for no MSAA. Use s_MSAASamples > 1 to check for MSAA.
static int s_MSAASamples = 1;
// Normal Mode
// s_RenderTarget is a texture_rect
@ -93,6 +94,7 @@ static bool MSAA = false;
// 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.
@ -107,23 +109,23 @@ static GLuint s_ResolvedDepthTarget = 0;
static bool s_bATIDrawBuffers = false;
static bool s_bHaveStencilBuffer = false;
static bool s_bHaveFramebufferBlit = false;
static bool g_bBlendSeparate = false;
static u32 s_blendMode;
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.\
// These STAY CONSTANT during execution, no matter how much you resize the game window.
// TODO: Add functionality to reinit all the render targets when the window is resized.
static int s_targetwidth; // Size of render buffer FBO.
static int s_targetheight;
static u32 s_blendMode;
extern void HandleCgError(CGcontext ctx, CGerror err, void *appdata);
@ -173,8 +175,7 @@ bool Renderer::Init()
g_cgcontext = cgCreateContext();
cgGetError();
cgSetErrorHandler(HandleCgError, NULL);
cgSetErrorHandler(HandleCgError, NULL);
// Look for required extensions.
const char *ptoken = (const char*)glGetString(GL_EXTENSIONS);
@ -216,8 +217,12 @@ bool Renderer::Init()
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;
s_bHaveFramebufferBlit = strstr(ptoken, "GL_EXT_framebuffer_blit") != NULL;
if (!s_bHaveFramebufferBlit)
{
// MSAA ain't gonna work. turn it off if enabled.
s_MSAASamples = 1;
}
if (!bSuccess)
return false;
@ -246,14 +251,6 @@ bool Renderer::Init()
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.
@ -271,14 +268,19 @@ bool Renderer::Init()
if (s_targetheight < EFB_HEIGHT)
s_targetheight = EFB_HEIGHT;
if (!MSAA) {
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?");
}
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();
GL_REPORT_ERROR();
GLint nMaxMRT = 0;
@ -318,11 +320,64 @@ bool Renderer::Init()
if (s_FakeZTarget == 0)
ERROR_LOG(VIDEO, "Disabling ztarget MRT feature (max MRT = %d)\n", nMaxMRT);
} else {
// TODO MSAA rendertarget init
}
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
else
{
// MSAA rendertarget init.
// First set up the boring multisampled rendertarget.
glGenRenderbuffersEXT(1, &s_RenderTarget);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_RenderTarget);
glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, s_MSAASamples, GL_RGBA, s_targetwidth, s_targetheight);
glGenRenderbuffersEXT(1, &s_FakeZTarget);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_FakeZTarget);
glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, s_MSAASamples, GL_RGBA, s_targetwidth, s_targetheight);
glGenRenderbuffersEXT(1, &s_DepthTarget);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_DepthTarget);
glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, s_MSAASamples, GL_DEPTH24_STENCIL8_EXT, 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_COLOR_ATTACHMENT1_EXT, GL_RENDERBUFFER_EXT, s_FakeZTarget);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, s_DepthTarget);
OpenGL_CheckFBOStatus();
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_ResolvedFakeZTarget);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_ResolvedFakeZTarget);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, s_targetwidth, s_targetheight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
SetDefaultRectTexParams();
// Create the real depth/stencil buffer. It's a renderbuffer, not a texture.
glGenRenderbuffersEXT(1, &s_ResolvedDepthTarget);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_ResolvedDepthTarget);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT, s_targetwidth, s_targetheight);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
// 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_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB, s_ResolvedFakeZTarget, 0);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, s_ResolvedDepthTarget);
OpenGL_CheckFBOStatus();
bFailed = glGetError() != GL_NO_ERROR || glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT;
if (bFailed) PanicAlert("Incomplete rt2");
}
// glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
nZBufferRender = 0; // Initialize the Z render shutoff countdown. We only render Z if it's desired, to save GPU power.
@ -473,7 +528,7 @@ float Renderer::GetTargetScaleY()
void Renderer::SetRenderTarget(GLuint targ)
{
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB,
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB,
targ != 0 ? targ : s_RenderTarget, 0);
}
@ -485,25 +540,64 @@ void Renderer::SetDepthTarget(GLuint targ)
void Renderer::SetFramebuffer(GLuint fb)
{
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT,
fb != 0 ? fb : s_uFramebuffer);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb != 0 ? fb : s_uFramebuffer);
}
GLuint Renderer::ResolveAndGetRenderTarget(const TRectangle &source_rect)
{
return s_RenderTarget;
if (s_MSAASamples > 1)
{
// Flip the rectangle
TRectangle flipped_rect;
source_rect.FlipYPosition(GetTargetHeight(), &flipped_rect);
// 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);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
// Return the resolved target.
return s_ResolvedRenderTarget;
}
else
{
return s_RenderTarget;
}
}
GLuint Renderer::ResolveAndGetFakeZTarget(const TRectangle &source_rect)
{
// This logic should be moved elsewhere.
return s_FakeZTarget;
if (s_MSAASamples > 1)
{
// Flip the rectangle
TRectangle flipped_rect;
source_rect.FlipYPosition(GetTargetHeight(), &flipped_rect);
// Do the resolve. We resolve both color channels, not very necessary.
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);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
// Return the resolved target.
return s_ResolvedFakeZTarget;
}
else
{
return s_FakeZTarget;
}
}
GLuint Renderer::GetFakeZTarget()
bool Renderer::UseFakeZTarget()
{
// This logic should be moved elsewhere.
return nZBufferRender > 0 ? s_FakeZTarget : 0;
return nZBufferRender > 0;
}
void Renderer::ResetGLState()
@ -768,7 +862,7 @@ void Renderer::SetRenderMode(RenderMode mode)
}
else if (s_RenderMode == RM_Normal) {
// setup buffers
_assert_(GetFakeZTarget() && bpmem.zmode.updateenable);
_assert_(UseFakeZTarget() && bpmem.zmode.updateenable);
if (mode == RM_ZBufferAlpha) {
glEnable(GL_STENCIL_TEST);
glClearStencil(0);
@ -782,7 +876,7 @@ void Renderer::SetRenderMode(RenderMode mode)
GL_REPORT_ERRORD();
}
else {
_assert_(GetFakeZTarget());
_assert_(UseFakeZTarget());
_assert_(s_bHaveStencilBuffer);
if (mode == RM_ZBufferOnly) {
@ -897,72 +991,87 @@ void Renderer::Swap(const TRectangle& rc)
TRectangle back_rc;
ComputeBackbufferRectangle(&back_rc);
// Disable all other stages.
for (int i = 1; i < 8; ++i)
TextureMngr::DisableStage(i);
// 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.
#if 0
// Use framebuffer blit to stretch screen. No messing around with annoying glBegin and viewports.
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
glBlitFramebufferEXT(0, GetTargetHeight() - (rc.bottom - rc.top), rc.GetWidth(), rc.GetHeight(),
back_rc.left, back_rc.top, back_rc.GetWidth(), back_rc.GetHeight(),
GL_COLOR_BUFFER_BIT, GL_LINEAR);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the window backbuffer
//glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, s_uFramebuffer);
#else
// Render to the real buffer now.
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the window backbuffer
// 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);
float u_max;
float v_min = 0.f;
float v_max;
if (g_Config.bAutoScale) {
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();
#endif
else
{
u_max = (float)GetTargetWidth();
v_max = (float)GetTargetHeight();
}
// Restore filtering.
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
if (s_bHaveFramebufferBlit)
{
// Use framebuffer blit to stretch screen.
// No messing around with annoying glBegin and viewports, plus can support multisampling.
if (s_MSAASamples > 1)
{
ResolveAndGetRenderTarget(rc);
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uResolvedFramebuffer);
}
else
{
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, s_uFramebuffer);
}
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
glBlitFramebufferEXT(0, v_min, u_max, v_max,
back_rc.left, back_rc.top, back_rc.right, back_rc.bottom,
GL_COLOR_BUFFER_BIT, GL_LINEAR);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the window backbuffer, we'll draw debug text on top
}
else
{
// No framebuffer_blit extension - crappy gfx card! Fall back to plain texturing solution.
// Disable all other stages.
for (int i = 1; i < 8; ++i)
TextureMngr::DisableStage(i);
// Wireframe
if (g_Config.bWireFrame)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
// 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.
// Render to the real buffer now.
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the window backbuffer
// 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);
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);
// End of non-framebuffer_blit workaround.
}
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
TextureMngr::DisableStage(0);
// -------------------------------------
// Take screenshot, if requested
if (s_bScreenshot) {
s_criticalScreenshot.Enter();
@ -995,6 +1104,8 @@ void Renderer::Swap(const TRectangle& rc)
void Renderer::DrawDebugText()
{
// Reset viewport for drawing text
glViewport(0, 0, OpenGL_GetBackbufferWidth(), OpenGL_GetBackbufferHeight());
// Draw various messages on the screen, like FPS, statistics, etc.
char debugtext_buffer[8192];
char *p = debugtext_buffer;