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Diffstat (limited to 'indra/llrender/llrendertarget.cpp')
-rw-r--r--indra/llrender/llrendertarget.cpp423
1 files changed, 124 insertions, 299 deletions
diff --git a/indra/llrender/llrendertarget.cpp b/indra/llrender/llrendertarget.cpp
index da1e94df64..b6463309e1 100644
--- a/indra/llrender/llrendertarget.cpp
+++ b/indra/llrender/llrendertarget.cpp
@@ -63,8 +63,7 @@ LLRenderTarget::LLRenderTarget() :
mUseDepth(false),
mRenderDepth(false),
mUsage(LLTexUnit::TT_TEXTURE),
- mSamples(0),
- mSampleBuffer(NULL)
+ mSamples(0)
{
}
@@ -73,23 +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)
{
@@ -146,29 +154,51 @@ 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)
{
+ stop_glerror();
glBindFramebuffer(GL_FRAMEBUFFER, mFBO);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+offset,
LLTexUnit::getInternalType(mUsage), tex, 0);
@@ -181,6 +211,12 @@ void LLRenderTarget::addColorAttachment(U32 color_fmt)
mTex.push_back(tex);
+ if (gDebugGL)
+ { //bind and unbind to validate target
+ bindTarget();
+ flush();
+ }
+
}
void LLRenderTarget::allocateDepth()
@@ -197,9 +233,20 @@ void LLRenderTarget::allocateDepth()
{
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, 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
}
}
@@ -239,6 +286,9 @@ void LLRenderTarget::shareDepthBuffer(LLRenderTarget& target)
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), mDepth, 0);
stop_glerror();
}
+
+ check_framebuffer_status();
+
glBindFramebuffer(GL_FRAMEBUFFER, 0);
target.mUseDepth = true;
@@ -256,7 +306,7 @@ void LLRenderTarget::release()
}
else
{
- LLImageGL::deleteTextures(1, &mDepth);
+ LLImageGL::deleteTextures(1, &mDepth, true);
stop_glerror();
}
mDepth = 0;
@@ -285,11 +335,12 @@ void LLRenderTarget::release()
if (mTex.size() > 0)
{
- LLImageGL::deleteTextures(mTex.size(), &mTex[0]);
+ LLImageGL::deleteTextures(mTex.size(), &mTex[0], true);
mTex.clear();
}
+
+ mResX = mResY = 0;
- mSampleBuffer = NULL;
sBoundTarget = NULL;
}
@@ -298,34 +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
- {
- 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);
- }
- 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);
@@ -407,50 +451,8 @@ void LLRenderTarget::flush(bool fetch_depth)
else
{
stop_glerror();
-
glBindFramebuffer(GL_FRAMEBUFFER, 0);
-
stop_glerror();
-
- if (mSampleBuffer)
- {
- LLGLEnable multisample(GL_MULTISAMPLE);
- stop_glerror();
- glBindFramebuffer(GL_FRAMEBUFFER, mFBO);
- stop_glerror();
- check_framebuffer_status();
- glBindFramebuffer(GL_READ_FRAMEBUFFER, mSampleBuffer->mFBO);
- check_framebuffer_status();
-
- stop_glerror();
- glBlitFramebuffer(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)
- {
- glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
- LLTexUnit::getInternalType(mUsage), mTex[i], 0);
- stop_glerror();
- glFramebufferRenderbuffer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, mSampleBuffer->mTex[i]);
- stop_glerror();
- glBlitFramebuffer(0, 0, mResX, mResY, 0, 0, mResX, mResY, GL_COLOR_BUFFER_BIT, GL_NEAREST);
- stop_glerror();
- }
-
- for (U32 i = 0; i < mTex.size(); ++i)
- {
- glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+i,
- LLTexUnit::getInternalType(mUsage), mTex[i], 0);
- stop_glerror();
- glFramebufferRenderbuffer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+i, GL_RENDERBUFFER, mSampleBuffer->mTex[i]);
- stop_glerror();
- }
- }
- }
-
- glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
}
@@ -467,37 +469,36 @@ void LLRenderTarget::copyContents(LLRenderTarget& source, S32 srcX0, S32 srcY0,
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();
-
- glBindFramebuffer(GL_FRAMEBUFFER, source.mFBO);
- 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
- {
- 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_FRAMEBUFFER, 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();
}
}
@@ -540,179 +541,3 @@ void LLRenderTarget::getViewport(S32* viewport)
viewport[3] = mResY;
}
-//==================================================
-// LLMultisampleBuffer implementation
-//==================================================
-LLMultisampleBuffer::LLMultisampleBuffer()
-{
-
-}
-
-LLMultisampleBuffer::~LLMultisampleBuffer()
-{
- release();
-}
-
-void LLMultisampleBuffer::release()
-{
- if (mFBO)
- {
- glDeleteFramebuffers(1, (GLuint *) &mFBO);
- mFBO = 0;
- }
-
- if (mTex.size() > 0)
- {
- glDeleteRenderbuffers(mTex.size(), (GLuint *) &mTex[0]);
- mTex.clear();
- }
-
- if (mDepth)
- {
- glDeleteRenderbuffers(1, (GLuint *) &mDepth);
- mDepth = 0;
- }
-}
-
-void LLMultisampleBuffer::bindTarget()
-{
- bindTarget(this);
-}
-
-void LLMultisampleBuffer::bindTarget(LLRenderTarget* ref)
-{
- if (!ref)
- {
- ref = this;
- }
-
- glBindFramebuffer(GL_FRAMEBUFFER, mFBO);
- if (gGLManager.mHasDrawBuffers)
- { //setup multiple render targets
- GLenum drawbuffers[] = {GL_COLOR_ATTACHMENT0,
- GL_COLOR_ATTACHMENT1,
- GL_COLOR_ATTACHMENT2,
- GL_COLOR_ATTACHMENT3};
- 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;
-
- release();
-
- 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();
- }
-
- glGenFramebuffers(1, (GLuint *) &mFBO);
-
- glBindFramebuffer(GL_FRAMEBUFFER, mFBO);
-
- if (mDepth)
- {
- glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mDepth);
- if (mStencil)
- {
- glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, mDepth);
- }
- }
-
- stop_glerror();
- glBindFramebuffer(GL_FRAMEBUFFER, 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;
- glGenRenderbuffers(1, &tex);
-
- glBindRenderbuffer(GL_RENDERBUFFER, tex);
- glRenderbufferStorageMultisample(GL_RENDERBUFFER, mSamples, color_fmt, mResX, mResY);
- stop_glerror();
-
- if (mFBO)
- {
- glBindFramebuffer(GL_FRAMEBUFFER, mFBO);
- glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+offset, GL_RENDERBUFFER, tex);
- stop_glerror();
- GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
- switch (status)
- {
- case GL_FRAMEBUFFER_COMPLETE:
- break;
- default:
- llerrs << "WTF? " << std::hex << status << llendl;
- break;
- }
-
- glBindFramebuffer(GL_FRAMEBUFFER, 0);
- }
-
- mTex.push_back(tex);
-}
-
-void LLMultisampleBuffer::allocateDepth()
-{
- glGenRenderbuffers(1, (GLuint* ) &mDepth);
- glBindRenderbuffer(GL_RENDERBUFFER, mDepth);
- if (mStencil)
- {
- glRenderbufferStorageMultisample(GL_RENDERBUFFER, mSamples, GL_DEPTH24_STENCIL8, mResX, mResY);
- }
- else
- {
- glRenderbufferStorageMultisample(GL_RENDERBUFFER, mSamples, GL_DEPTH_COMPONENT16, mResX, mResY);
- }
-}
-