diff options
Diffstat (limited to 'indra/llrender/llrendertarget.cpp')
| -rw-r--r-- | indra/llrender/llrendertarget.cpp | 574 |
1 files changed, 210 insertions, 364 deletions
diff --git a/indra/llrender/llrendertarget.cpp b/indra/llrender/llrendertarget.cpp index 7205210fcc..b6463309e1 100644 --- a/indra/llrender/llrendertarget.cpp +++ b/indra/llrender/llrendertarget.cpp @@ -38,19 +38,20 @@ void check_framebuffer_status() { if (gDebugGL) { - GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); + GLenum status = glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER); switch (status) { - case GL_FRAMEBUFFER_COMPLETE_EXT: + case GL_FRAMEBUFFER_COMPLETE: break; default: + llwarns << "check_framebuffer_status failed -- " << std::hex << status << llendl; ll_fail("check_framebuffer_status failed"); break; } } } -BOOL LLRenderTarget::sUseFBO = FALSE; +bool LLRenderTarget::sUseFBO = false; LLRenderTarget::LLRenderTarget() : mResX(0), @@ -59,11 +60,10 @@ LLRenderTarget::LLRenderTarget() : mFBO(0), mDepth(0), mStencil(0), - mUseDepth(FALSE), - mRenderDepth(FALSE), + mUseDepth(false), + mRenderDepth(false), mUsage(LLTexUnit::TT_TEXTURE), - mSamples(0), - mSampleBuffer(NULL) + mSamples(0) { } @@ -72,23 +72,32 @@ LLRenderTarget::~LLRenderTarget() release(); } - -void LLRenderTarget::setSampleBuffer(LLMultisampleBuffer* buffer) -{ - mSampleBuffer = buffer; -} - -void LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, BOOL stencil, LLTexUnit::eTextureType usage, BOOL use_fbo) +void LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, bool stencil, LLTexUnit::eTextureType usage, bool use_fbo, S32 samples) { stop_glerror(); + + release(); + mResX = resx; mResY = resy; mStencil = stencil; mUsage = usage; mUseDepth = depth; + mSamples = samples; - release(); + mSamples = gGLManager.getNumFBOFSAASamples(mSamples); + + if (mSamples > 1 && gGLManager.mHasTextureMultisample) + { + mUsage = LLTexUnit::TT_MULTISAMPLE_TEXTURE; + //no support for multisampled stencil targets yet + mStencil = false; + } + else + { + mSamples = 0; + } if ((sUseFBO || use_fbo) && gGLManager.mHasFramebufferObject) { @@ -99,24 +108,24 @@ void LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, BOO stop_glerror(); } - glGenFramebuffersEXT(1, (GLuint *) &mFBO); + glGenFramebuffers(1, (GLuint *) &mFBO); if (mDepth) { - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); + glBindFramebuffer(GL_FRAMEBUFFER, mFBO); if (mStencil) { - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, mDepth); + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mDepth); stop_glerror(); - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, mDepth); + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, mDepth); stop_glerror(); } else { - glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, LLTexUnit::getInternalType(mUsage), mDepth, 0); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), mDepth, 0); stop_glerror(); } - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glBindFramebuffer(GL_FRAMEBUFFER, 0); } stop_glerror(); @@ -145,41 +154,69 @@ void LLRenderTarget::addColorAttachment(U32 color_fmt) stop_glerror(); - LLImageGL::setManualImage(LLTexUnit::getInternalType(mUsage), 0, color_fmt, mResX, mResY, GL_RGBA, GL_UNSIGNED_BYTE, NULL); - - stop_glerror(); - if (offset == 0) +#ifdef GL_ARB_texture_multisample + if (mSamples > 1) { - gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_BILINEAR); + glTexImage2DMultisample(LLTexUnit::getInternalType(mUsage), mSamples, color_fmt, mResX, mResY, GL_TRUE); } else - { //don't filter data attachments - gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_POINT); - } - if (mUsage != LLTexUnit::TT_RECT_TEXTURE) +#else + llassert_always(mSamples <= 1); +#endif { - gGL.getTexUnit(0)->setTextureAddressMode(LLTexUnit::TAM_MIRROR); + LLImageGL::setManualImage(LLTexUnit::getInternalType(mUsage), 0, color_fmt, mResX, mResY, GL_RGBA, GL_UNSIGNED_BYTE, NULL); } - else - { - // ATI doesn't support mirrored repeat for rectangular textures. - gGL.getTexUnit(0)->setTextureAddressMode(LLTexUnit::TAM_CLAMP); + + stop_glerror(); + + if (mSamples == 0) + { + if (offset == 0) + { //use bilinear filtering on single texture render targets that aren't multisampled + gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_BILINEAR); + stop_glerror(); + } + else + { //don't filter data attachments + gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_POINT); + stop_glerror(); + } + + if (mUsage != LLTexUnit::TT_RECT_TEXTURE) + { + gGL.getTexUnit(0)->setTextureAddressMode(LLTexUnit::TAM_MIRROR); + stop_glerror(); + } + else + { + // ATI doesn't support mirrored repeat for rectangular textures. + gGL.getTexUnit(0)->setTextureAddressMode(LLTexUnit::TAM_CLAMP); + stop_glerror(); + } } + if (mFBO) { - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); - glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT+offset, + stop_glerror(); + glBindFramebuffer(GL_FRAMEBUFFER, mFBO); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+offset, LLTexUnit::getInternalType(mUsage), tex, 0); stop_glerror(); check_framebuffer_status(); - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glBindFramebuffer(GL_FRAMEBUFFER, 0); } mTex.push_back(tex); + if (gDebugGL) + { //bind and unbind to validate target + bindTarget(); + flush(); + } + } void LLRenderTarget::allocateDepth() @@ -187,18 +224,29 @@ void LLRenderTarget::allocateDepth() if (mStencil) { //use render buffers where stencil buffers are in play - glGenRenderbuffersEXT(1, (GLuint *) &mDepth); - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, mDepth); - glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT, mResX, mResY); - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0); + glGenRenderbuffers(1, (GLuint *) &mDepth); + glBindRenderbuffer(GL_RENDERBUFFER, mDepth); + glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, mResX, mResY); + glBindRenderbuffer(GL_RENDERBUFFER, 0); } else { LLImageGL::generateTextures(1, &mDepth); gGL.getTexUnit(0)->bindManual(mUsage, mDepth); - U32 internal_type = LLTexUnit::getInternalType(mUsage); - gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_POINT); - LLImageGL::setManualImage(internal_type, 0, GL_DEPTH_COMPONENT32_ARB, mResX, mResY, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + if (mSamples == 0) + { + U32 internal_type = LLTexUnit::getInternalType(mUsage); + gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_POINT); + LLImageGL::setManualImage(internal_type, 0, GL_DEPTH_COMPONENT32, mResX, mResY, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + } +#ifdef GL_ARB_texture_multisample + else + { + glTexImage2DMultisample(LLTexUnit::getInternalType(mUsage), mSamples, GL_DEPTH_COMPONENT32, mResX, mResY, GL_TRUE); + } +#else + llassert_always(mSamples <= 1); +#endif } } @@ -209,65 +257,90 @@ void LLRenderTarget::shareDepthBuffer(LLRenderTarget& target) llerrs << "Cannot share depth buffer between non FBO render targets." << llendl; } + if (target.mDepth) + { + llerrs << "Attempting to override existing depth buffer. Detach existing buffer first." << llendl; + } + + if (target.mUseDepth) + { + llerrs << "Attempting to override existing shared depth buffer. Detach existing buffer first." << llendl; + } + if (mDepth) { stop_glerror(); - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, target.mFBO); + glBindFramebuffer(GL_FRAMEBUFFER, target.mFBO); stop_glerror(); if (mStencil) { - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, mDepth); + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mDepth); stop_glerror(); - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, mDepth); + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, mDepth); stop_glerror(); + target.mStencil = true; } else { - glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, LLTexUnit::getInternalType(mUsage), mDepth, 0); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), mDepth, 0); stop_glerror(); - if (mStencil) - { - glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, LLTexUnit::getInternalType(mUsage), mDepth, 0); - stop_glerror(); - } } - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - target.mUseDepth = TRUE; + check_framebuffer_status(); + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + target.mUseDepth = true; } } void LLRenderTarget::release() { - if (mFBO) - { - glDeleteFramebuffersEXT(1, (GLuint *) &mFBO); - mFBO = 0; - } - - if (mTex.size() > 0) - { - LLImageGL::deleteTextures(mTex.size(), &mTex[0]); - mTex.clear(); - } - if (mDepth) { if (mStencil) { - glDeleteRenderbuffersEXT(1, (GLuint*) &mDepth); + glDeleteRenderbuffers(1, (GLuint*) &mDepth); stop_glerror(); } else { - LLImageGL::deleteTextures(1, &mDepth); + LLImageGL::deleteTextures(1, &mDepth, true); stop_glerror(); } mDepth = 0; } + else if (mUseDepth && mFBO) + { //detach shared depth buffer + glBindFramebuffer(GL_FRAMEBUFFER, mFBO); + if (mStencil) + { //attached as a renderbuffer + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, 0); + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0); + mStencil = false; + } + else + { //attached as a texture + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), 0, 0); + } + mUseDepth = false; + } + + if (mFBO) + { + glDeleteFramebuffers(1, (GLuint *) &mFBO); + mFBO = 0; + } + + if (mTex.size() > 0) + { + LLImageGL::deleteTextures(mTex.size(), &mTex[0], true); + mTex.clear(); + } + + mResX = mResY = 0; - mSampleBuffer = NULL; sBoundTarget = NULL; } @@ -276,34 +349,27 @@ void LLRenderTarget::bindTarget() if (mFBO) { stop_glerror(); - if (mSampleBuffer) - { - mSampleBuffer->bindTarget(this); - stop_glerror(); + + glBindFramebuffer(GL_FRAMEBUFFER, mFBO); + stop_glerror(); + if (gGLManager.mHasDrawBuffers) + { //setup multiple render targets + GLenum drawbuffers[] = {GL_COLOR_ATTACHMENT0, + GL_COLOR_ATTACHMENT1, + GL_COLOR_ATTACHMENT2, + GL_COLOR_ATTACHMENT3}; + glDrawBuffersARB(mTex.size(), drawbuffers); } - else - { - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); - stop_glerror(); - if (gGLManager.mHasDrawBuffers) - { //setup multiple render targets - GLenum drawbuffers[] = {GL_COLOR_ATTACHMENT0_EXT, - GL_COLOR_ATTACHMENT1_EXT, - GL_COLOR_ATTACHMENT2_EXT, - GL_COLOR_ATTACHMENT3_EXT}; - glDrawBuffersARB(mTex.size(), drawbuffers); - } - if (mTex.empty()) - { //no color buffer to draw to - glDrawBuffer(GL_NONE); - glReadBuffer(GL_NONE); - } + if (mTex.empty()) + { //no color buffer to draw to + glDrawBuffer(GL_NONE); + glReadBuffer(GL_NONE); + } - check_framebuffer_status(); + check_framebuffer_status(); - stop_glerror(); - } + stop_glerror(); } glViewport(0, 0, mResX, mResY); @@ -315,7 +381,7 @@ void LLRenderTarget::unbindTarget() { if (gGLManager.mHasFramebufferObject) { - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glBindFramebuffer(GL_FRAMEBUFFER, 0); } sBoundTarget = NULL; } @@ -349,19 +415,19 @@ U32 LLRenderTarget::getTexture(U32 attachment) const { llerrs << "Invalid attachment index." << llendl; } + if (mTex.empty()) + { + return 0; + } return mTex[attachment]; } void LLRenderTarget::bindTexture(U32 index, S32 channel) { - if (index > mTex.size()-1) - { - llerrs << "Invalid attachment index." << llendl; - } - gGL.getTexUnit(channel)->bindManual(mUsage, mTex[index]); + gGL.getTexUnit(channel)->bindManual(mUsage, getTexture(index)); } -void LLRenderTarget::flush(BOOL fetch_depth) +void LLRenderTarget::flush(bool fetch_depth) { gGL.flush(); if (!mFBO) @@ -377,7 +443,7 @@ void LLRenderTarget::flush(BOOL fetch_depth) } gGL.getTexUnit(0)->bind(this); - glCopyTexImage2D(LLTexUnit::getInternalType(mUsage), 0, GL_DEPTH24_STENCIL8_EXT, 0, 0, mResX, mResY, 0); + glCopyTexImage2D(LLTexUnit::getInternalType(mUsage), 0, GL_DEPTH24_STENCIL8, 0, 0, mResX, mResY, 0); } gGL.getTexUnit(0)->disable(); @@ -385,93 +451,54 @@ void LLRenderTarget::flush(BOOL fetch_depth) else { stop_glerror(); - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - + glBindFramebuffer(GL_FRAMEBUFFER, 0); stop_glerror(); - - if (mSampleBuffer) - { - LLGLEnable multisample(GL_MULTISAMPLE_ARB); - stop_glerror(); - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); - stop_glerror(); - check_framebuffer_status(); - glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, mSampleBuffer->mFBO); - check_framebuffer_status(); - - stop_glerror(); - glBlitFramebufferEXT(0, 0, mResX, mResY, 0, 0, mResX, mResY, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_NEAREST); - stop_glerror(); - - if (mTex.size() > 1) - { - for (U32 i = 1; i < mTex.size(); ++i) - { - glFramebufferTexture2DEXT(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, - LLTexUnit::getInternalType(mUsage), mTex[i], 0); - stop_glerror(); - glFramebufferRenderbufferEXT(GL_READ_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, mSampleBuffer->mTex[i]); - stop_glerror(); - glBlitFramebufferEXT(0, 0, mResX, mResY, 0, 0, mResX, mResY, GL_COLOR_BUFFER_BIT, GL_NEAREST); - stop_glerror(); - } - - for (U32 i = 0; i < mTex.size(); ++i) - { - glFramebufferTexture2DEXT(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT+i, - LLTexUnit::getInternalType(mUsage), mTex[i], 0); - stop_glerror(); - glFramebufferRenderbufferEXT(GL_READ_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT+i, GL_RENDERBUFFER_EXT, mSampleBuffer->mTex[i]); - stop_glerror(); - } - } - } - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); } } void LLRenderTarget::copyContents(LLRenderTarget& source, S32 srcX0, S32 srcY0, S32 srcX1, S32 srcY1, S32 dstX0, S32 dstY0, S32 dstX1, S32 dstY1, U32 mask, U32 filter) { + GLboolean write_depth = mask & GL_DEPTH_BUFFER_BIT ? TRUE : FALSE; + + LLGLDepthTest depth(write_depth, write_depth); + gGL.flush(); if (!source.mFBO || !mFBO) { llerrs << "Cannot copy framebuffer contents for non FBO render targets." << llendl; } - if (mSampleBuffer) + + if (mask == GL_DEPTH_BUFFER_BIT && source.mStencil != mStencil) { - mSampleBuffer->copyContents(source, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); + stop_glerror(); + + glBindFramebuffer(GL_FRAMEBUFFER, source.mFBO); + check_framebuffer_status(); + gGL.getTexUnit(0)->bind(this, true); + stop_glerror(); + glCopyTexSubImage2D(LLTexUnit::getInternalType(mUsage), 0, srcX0, srcY0, dstX0, dstY0, dstX1, dstY1); + stop_glerror(); + glBindFramebuffer(GL_FRAMEBUFFER, 0); + stop_glerror(); } else { - if (mask == GL_DEPTH_BUFFER_BIT && source.mStencil != mStencil) - { - stop_glerror(); - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, source.mFBO); - gGL.getTexUnit(0)->bind(this, true); - stop_glerror(); - glCopyTexSubImage2D(LLTexUnit::getInternalType(mUsage), 0, srcX0, srcY0, dstX0, dstY0, dstX1, dstY1); - stop_glerror(); - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - stop_glerror(); - } - else - { - glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, source.mFBO); - stop_glerror(); - glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, mFBO); - stop_glerror(); - check_framebuffer_status(); - stop_glerror(); - glBlitFramebufferEXT(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); - stop_glerror(); - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - stop_glerror(); - } + glBindFramebuffer(GL_READ_FRAMEBUFFER, source.mFBO); + stop_glerror(); + glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mFBO); + stop_glerror(); + check_framebuffer_status(); + stop_glerror(); + glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); + stop_glerror(); + glBindFramebuffer(GL_READ_FRAMEBUFFER, 0); + stop_glerror(); + glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); + stop_glerror(); + glBindFramebuffer(GL_FRAMEBUFFER, 0); + stop_glerror(); } } @@ -484,22 +511,26 @@ void LLRenderTarget::copyContentsToFramebuffer(LLRenderTarget& source, S32 srcX0 llerrs << "Cannot copy framebuffer contents for non FBO render targets." << llendl; } { - glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, source.mFBO); + GLboolean write_depth = mask & GL_DEPTH_BUFFER_BIT ? TRUE : FALSE; + + LLGLDepthTest depth(write_depth, write_depth); + + glBindFramebuffer(GL_READ_FRAMEBUFFER, source.mFBO); stop_glerror(); - glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0); + glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); stop_glerror(); check_framebuffer_status(); stop_glerror(); - glBlitFramebufferEXT(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); + glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); stop_glerror(); - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glBindFramebuffer(GL_FRAMEBUFFER, 0); stop_glerror(); } } -BOOL LLRenderTarget::isComplete() const +bool LLRenderTarget::isComplete() const { - return (!mTex.empty() || mDepth) ? TRUE : FALSE; + return (!mTex.empty() || mDepth) ? true : false; } void LLRenderTarget::getViewport(S32* viewport) @@ -510,188 +541,3 @@ void LLRenderTarget::getViewport(S32* viewport) viewport[3] = mResY; } -//================================================== -// LLMultisampleBuffer implementation -//================================================== -LLMultisampleBuffer::LLMultisampleBuffer() -{ - -} - -LLMultisampleBuffer::~LLMultisampleBuffer() -{ - releaseSampleBuffer(); -} - -void LLMultisampleBuffer::releaseSampleBuffer() -{ - if (mFBO) - { - glDeleteFramebuffersEXT(1, (GLuint *) &mFBO); - mFBO = 0; - } - - if (mTex.size() > 0) - { - glDeleteRenderbuffersEXT(mTex.size(), (GLuint *) &mTex[0]); - mTex.clear(); - } - - if (mDepth) - { - glDeleteRenderbuffersEXT(1, (GLuint *) &mDepth); - mDepth = 0; - } -} - -void LLMultisampleBuffer::bindTarget() -{ - bindTarget(this); -} - -void LLMultisampleBuffer::bindTarget(LLRenderTarget* ref) -{ - if (!ref) - { - ref = this; - } - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); - if (gGLManager.mHasDrawBuffers) - { //setup multiple render targets - GLenum drawbuffers[] = {GL_COLOR_ATTACHMENT0_EXT, - GL_COLOR_ATTACHMENT1_EXT, - GL_COLOR_ATTACHMENT2_EXT, - GL_COLOR_ATTACHMENT3_EXT}; - glDrawBuffersARB(ref->mTex.size(), drawbuffers); - } - - check_framebuffer_status(); - - glViewport(0, 0, mResX, mResY); - - sBoundTarget = this; -} - -void LLMultisampleBuffer::allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, BOOL stencil, LLTexUnit::eTextureType usage, BOOL use_fbo ) -{ - allocate(resx,resy,color_fmt,depth,stencil,usage,use_fbo,2); -} - -void LLMultisampleBuffer::allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, BOOL stencil, LLTexUnit::eTextureType usage, BOOL use_fbo, U32 samples ) -{ - stop_glerror(); - mResX = resx; - mResY = resy; - - mUsage = usage; - mUseDepth = depth; - mStencil = stencil; - - releaseSampleBuffer(); - - if (!gGLManager.mHasFramebufferMultisample) - { - llerrs << "Attempting to allocate unsupported render target type!" << llendl; - } - - mSamples = samples; - - if (mSamples <= 1) - { - llerrs << "Cannot create a multisample buffer with less than 2 samples." << llendl; - } - - stop_glerror(); - - if ((sUseFBO || use_fbo) && gGLManager.mHasFramebufferObject) - { - - if (depth) - { - stop_glerror(); - allocateDepth(); - stop_glerror(); - } - - glGenFramebuffersEXT(1, (GLuint *) &mFBO); - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); - - if (mDepth) - { - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, mDepth); - if (mStencil) - { - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, mDepth); - } - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - } - - stop_glerror(); - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - stop_glerror(); - } - - addColorAttachment(color_fmt); -} - -void LLMultisampleBuffer::addColorAttachment(U32 color_fmt) -{ - if (color_fmt == 0) - { - return; - } - - U32 offset = mTex.size(); - if (offset >= 4 || - (offset > 0 && (mFBO == 0 || !gGLManager.mHasDrawBuffers))) - { - llerrs << "Too many color attachments!" << llendl; - } - - U32 tex; - glGenRenderbuffersEXT(1, &tex); - - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, tex); - glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, mSamples, color_fmt, mResX, mResY); - stop_glerror(); - - if (mFBO) - { - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT+offset, GL_RENDERBUFFER_EXT, tex); - stop_glerror(); - GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); - switch (status) - { - case GL_FRAMEBUFFER_COMPLETE_EXT: - break; - case GL_FRAMEBUFFER_UNSUPPORTED_EXT: - llerrs << "WTF?" << llendl; - break; - default: - llerrs << "WTF?" << llendl; - } - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - } - - mTex.push_back(tex); -} - -void LLMultisampleBuffer::allocateDepth() -{ - glGenRenderbuffersEXT(1, (GLuint* ) &mDepth); - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, mDepth); - if (mStencil) - { - glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, mSamples, GL_DEPTH24_STENCIL8_EXT, mResX, mResY); - } - else - { - glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, mSamples, GL_DEPTH_COMPONENT16_ARB, mResX, mResY); - } -} - |