diff options
Diffstat (limited to 'indra/llrender/llrendertarget.cpp')
| -rw-r--r-- | indra/llrender/llrendertarget.cpp | 139 |
1 files changed, 65 insertions, 74 deletions
diff --git a/indra/llrender/llrendertarget.cpp b/indra/llrender/llrendertarget.cpp index b6463309e1..1aa12614ea 100644 --- a/indra/llrender/llrendertarget.cpp +++ b/indra/llrender/llrendertarget.cpp @@ -31,8 +31,7 @@ #include "llgl.h" LLRenderTarget* LLRenderTarget::sBoundTarget = NULL; - - +U32 LLRenderTarget::sBytesAllocated = 0; void check_framebuffer_status() { @@ -62,8 +61,7 @@ LLRenderTarget::LLRenderTarget() : mStencil(0), mUseDepth(false), mRenderDepth(false), - mUsage(LLTexUnit::TT_TEXTURE), - mSamples(0) + mUsage(LLTexUnit::TT_TEXTURE) { } @@ -72,11 +70,11 @@ LLRenderTarget::~LLRenderTarget() release(); } -void LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, bool stencil, LLTexUnit::eTextureType usage, bool use_fbo, S32 samples) +bool LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, bool stencil, LLTexUnit::eTextureType usage, bool use_fbo, S32 samples) { stop_glerror(); - release(); + stop_glerror(); mResX = resx; mResY = resy; @@ -84,28 +82,16 @@ void LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, boo mStencil = stencil; mUsage = usage; mUseDepth = depth; - mSamples = samples; - - 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) { if (depth) { - stop_glerror(); - allocateDepth(); - stop_glerror(); + if (!allocateDepth()) + { + llwarns << "Failed to allocate depth buffer for render target." << llendl; + return false; + } } glGenFramebuffers(1, (GLuint *) &mFBO); @@ -131,14 +117,14 @@ void LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, boo stop_glerror(); } - addColorAttachment(color_fmt); + return addColorAttachment(color_fmt); } -void LLRenderTarget::addColorAttachment(U32 color_fmt) +bool LLRenderTarget::addColorAttachment(U32 color_fmt) { if (color_fmt == 0) { - return; + return true; } U32 offset = mTex.size(); @@ -155,45 +141,42 @@ void LLRenderTarget::addColorAttachment(U32 color_fmt) stop_glerror(); -#ifdef GL_ARB_texture_multisample - if (mSamples > 1) - { - glTexImage2DMultisample(LLTexUnit::getInternalType(mUsage), mSamples, color_fmt, mResX, mResY, GL_TRUE); - } - else -#else - llassert_always(mSamples <= 1); -#endif { + clear_glerror(); LLImageGL::setManualImage(LLTexUnit::getInternalType(mUsage), 0, color_fmt, mResX, mResY, GL_RGBA, GL_UNSIGNED_BYTE, NULL); + if (glGetError() != GL_NO_ERROR) + { + llwarns << "Could not allocate color buffer for render target." << llendl; + return false; + } } + sBytesAllocated += mResX*mResY*4; + 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 (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 (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) @@ -217,15 +200,18 @@ void LLRenderTarget::addColorAttachment(U32 color_fmt) flush(); } + return true; } -void LLRenderTarget::allocateDepth() +bool LLRenderTarget::allocateDepth() { if (mStencil) { //use render buffers where stencil buffers are in play glGenRenderbuffers(1, (GLuint *) &mDepth); glBindRenderbuffer(GL_RENDERBUFFER, mDepth); + stop_glerror(); + clear_glerror(); glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, mResX, mResY); glBindRenderbuffer(GL_RENDERBUFFER, 0); } @@ -233,21 +219,23 @@ void LLRenderTarget::allocateDepth() { LLImageGL::generateTextures(1, &mDepth); gGL.getTexUnit(0)->bindManual(mUsage, mDepth); - 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 + + U32 internal_type = LLTexUnit::getInternalType(mUsage); + stop_glerror(); + clear_glerror(); + LLImageGL::setManualImage(internal_type, 0, GL_DEPTH_COMPONENT24, mResX, mResY, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_POINT); } + + sBytesAllocated += mResX*mResY*4; + + if (glGetError() != GL_NO_ERROR) + { + llwarns << "Unable to allocate depth buffer for render target." << llendl; + return false; + } + + return true; } void LLRenderTarget::shareDepthBuffer(LLRenderTarget& target) @@ -310,14 +298,16 @@ void LLRenderTarget::release() stop_glerror(); } mDepth = 0; + + sBytesAllocated -= mResX*mResY*4; } 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); + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, 0); mStencil = false; } else @@ -335,6 +325,7 @@ void LLRenderTarget::release() if (mTex.size() > 0) { + sBytesAllocated -= mResX*mResY*4*mTex.size(); LLImageGL::deleteTextures(mTex.size(), &mTex[0], true); mTex.clear(); } |