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-rw-r--r--indra/llrender/llgl.cpp28
-rw-r--r--indra/llrender/llgl.h1
-rw-r--r--indra/llrender/llglheaders.h22
-rw-r--r--indra/llrender/llrender.cpp41
-rw-r--r--indra/llrender/llrender.h10
5 files changed, 93 insertions, 9 deletions
diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index a3f7a946ec..4c256f4b06 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -185,6 +185,9 @@ PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT =
// GL_EXT_framebuffer_blit
PFNGLBLITFRAMEBUFFEREXTPROC glBlitFramebufferEXT = NULL;
+// GL_EXT_blend_func_separate
+PFNGLBLENDFUNCSEPARATEEXTPROC glBlendFuncSeparateEXT = NULL;
+
// GL_ARB_draw_buffers
PFNGLDRAWBUFFERSARBPROC glDrawBuffersARB = NULL;
@@ -324,6 +327,7 @@ LLGLManager::LLGLManager() :
mHasCompressedTextures(FALSE),
mHasFramebufferObject(FALSE),
mHasFramebufferMultisample(FALSE),
+ mHasBlendFuncSeparate(FALSE),
mHasVertexBufferObject(FALSE),
mHasPBuffer(FALSE),
@@ -633,6 +637,12 @@ void LLGLManager::initExtensions()
#else
mHasDrawBuffers = FALSE;
# endif
+# if GL_EXT_blend_func_separate
+ mHasBlendFuncSeparate = TRUE;
+#else
+#error XXXXXX
+ mHasBlendFuncSeparate = FALSE;
+# endif
mHasMipMapGeneration = FALSE;
mHasSeparateSpecularColor = FALSE;
mHasAnisotropic = FALSE;
@@ -659,6 +669,7 @@ void LLGLManager::initExtensions()
&& ExtensionExists("GL_EXT_packed_depth_stencil", gGLHExts.mSysExts);
mHasFramebufferMultisample = mHasFramebufferObject && ExtensionExists("GL_EXT_framebuffer_multisample", gGLHExts.mSysExts);
mHasDrawBuffers = ExtensionExists("GL_ARB_draw_buffers", gGLHExts.mSysExts);
+ mHasBlendFuncSeparate = ExtensionExists("GL_EXT_blend_func_separate", gGLHExts.mSysExts);
mHasTextureRectangle = ExtensionExists("GL_ARB_texture_rectangle", gGLHExts.mSysExts);
#if !LL_DARWIN
mHasPointParameters = !mIsATI && ExtensionExists("GL_ARB_point_parameters", gGLHExts.mSysExts);
@@ -682,6 +693,7 @@ void LLGLManager::initExtensions()
mHasFramebufferObject = FALSE;
mHasFramebufferMultisample = FALSE;
mHasDrawBuffers = FALSE;
+ mHasBlendFuncSeparate = FALSE;
mHasMipMapGeneration = FALSE;
mHasSeparateSpecularColor = FALSE;
mHasAnisotropic = FALSE;
@@ -706,6 +718,7 @@ void LLGLManager::initExtensions()
mHasShaderObjects = FALSE;
mHasVertexShader = FALSE;
mHasFragmentShader = FALSE;
+ mHasBlendFuncSeparate = FALSE;
LL_WARNS("RenderInit") << "GL extension support forced to SIMPLE level via LL_GL_BASICEXT" << LL_ENDL;
}
if (getenv("LL_GL_BLACKLIST")) /* Flawfinder: ignore */
@@ -734,7 +747,8 @@ void LLGLManager::initExtensions()
if (strchr(blacklist,'r')) mHasDrawBuffers = FALSE;//S
if (strchr(blacklist,'s')) mHasFramebufferMultisample = FALSE;
if (strchr(blacklist,'t')) mHasTextureRectangle = FALSE;
-
+ if (strchr(blacklist,'u')) mHasBlendFuncSeparate = FALSE;//S
+
}
#endif // LL_LINUX || LL_SOLARIS
@@ -782,6 +796,14 @@ void LLGLManager::initExtensions()
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_fragment_shader" << LL_ENDL;
}
+ if (!mHasBlendFuncSeparate)
+ {
+ LL_INFOS("RenderInit") << "Couldn't initialize GL_EXT_blend_func_separate" << LL_ENDL;
+ }
+ if (!mHasDrawBuffers)
+ {
+ LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_draw_buffers" << LL_ENDL;
+ }
// Disable certain things due to known bugs
if (mIsIntel && mHasMipMapGeneration)
@@ -852,6 +874,10 @@ void LLGLManager::initExtensions()
{
glDrawBuffersARB = (PFNGLDRAWBUFFERSARBPROC) GLH_EXT_GET_PROC_ADDRESS("glDrawBuffersARB");
}
+ if (mHasBlendFuncSeparate)
+ {
+ glBlendFuncSeparateEXT = (PFNGLBLENDFUNCSEPARATEEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glBlendFuncSeparateEXT");
+ }
#if (!LL_LINUX && !LL_SOLARIS) || LL_LINUX_NV_GL_HEADERS
// This is expected to be a static symbol on Linux GL implementations, except if we use the nvidia headers - bah
glDrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC)GLH_EXT_GET_PROC_ADDRESS("glDrawRangeElements");
diff --git a/indra/llrender/llgl.h b/indra/llrender/llgl.h
index 91421f3c95..0c2da7dd08 100644
--- a/indra/llrender/llgl.h
+++ b/indra/llrender/llgl.h
@@ -87,6 +87,7 @@ public:
BOOL mHasCompressedTextures;
BOOL mHasFramebufferObject;
BOOL mHasFramebufferMultisample;
+ BOOL mHasBlendFuncSeparate;
// ARB Extensions
BOOL mHasVertexBufferObject;
diff --git a/indra/llrender/llglheaders.h b/indra/llrender/llglheaders.h
index f33ae7d8f0..f6d35bc766 100644
--- a/indra/llrender/llglheaders.h
+++ b/indra/llrender/llglheaders.h
@@ -216,6 +216,9 @@ extern PFNGLGETCOMPRESSEDTEXIMAGEARBPROC glGetCompressedTexImageARB;
extern PFNGLCOLORTABLEEXTPROC glColorTableEXT;
+//GL_EXT_blend_func_separate
+extern PFNGLBLENDFUNCSEPARATEEXTPROC glBlendFuncSeparateEXT;
+
//GL_EXT_framebuffer_object
extern PFNGLISRENDERBUFFEREXTPROC glIsRenderbufferEXT;
extern PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbufferEXT;
@@ -249,7 +252,10 @@ extern PFNGLGENERATEMIPMAPEXTPROC glGenerateMipmapEXT;
# include "GL/glh_extensions.h"
# undef __APPLE__
-#elif LL_LINUX
+#elif LL_LINUX
+//----------------------------------------------------------------------------
+// LL_LINUX
+
//----------------------------------------------------------------------------
// Linux, MESA headers, but not necessarily assuming MESA runtime.
// quotes so we get libraries/.../GL/ version
@@ -285,6 +291,7 @@ extern PFNGLGENERATEMIPMAPEXTPROC glGenerateMipmapEXT;
# define LL_LINUX_NV_GL_HEADERS 0
#endif // LL_LINUX && defined(WINGDIAPI)
+
#if LL_LINUX_NV_GL_HEADERS
// Missing functions when using nvidia headers:
extern PFNGLACTIVETEXTUREARBPROC glActiveTextureARB;
@@ -445,6 +452,9 @@ extern PFNGLGETATTRIBLOCATIONARBPROC glGetAttribLocationARB;
extern PFNGLCOMPRESSEDTEXIMAGE2DARBPROC glCompressedTexImage2DARB;
extern PFNGLGETCOMPRESSEDTEXIMAGEARBPROC glGetCompressedTexImageARB;
+//GL_EXT_blend_func_separate
+extern PFNGLBLENDFUNCSEPARATEEXTPROC glBlendFuncSeparateEXT;
+
//GL_EXT_framebuffer_object
extern PFNGLISRENDERBUFFEREXTPROC glIsRenderbufferEXT;
extern PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbufferEXT;
@@ -473,7 +483,10 @@ extern PFNGLBLITFRAMEBUFFEREXTPROC glBlitFramebufferEXT;
//GL_ARB_draw_buffers
extern PFNGLDRAWBUFFERSARBPROC glDrawBuffersARB;
+
#elif LL_WINDOWS
+//----------------------------------------------------------------------------
+// LL_WINDOWS
// windows gl headers depend on things like APIENTRY, so include windows.
#define WIN32_LEAN_AND_MEAN
@@ -641,6 +654,9 @@ extern PFNGLBINDATTRIBLOCATIONARBPROC glBindAttribLocationARB;
extern PFNGLGETACTIVEATTRIBARBPROC glGetActiveAttribARB;
extern PFNGLGETATTRIBLOCATIONARBPROC glGetAttribLocationARB;
+//GL_EXT_blend_func_separate
+extern PFNGLBLENDFUNCSEPARATEEXTPROC glBlendFuncSeparateEXT;
+
//GL_EXT_framebuffer_object
extern PFNGLISRENDERBUFFEREXTPROC glIsRenderbufferEXT;
extern PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbufferEXT;
@@ -669,6 +685,7 @@ extern PFNGLBLITFRAMEBUFFEREXTPROC glBlitFramebufferEXT;
//GL_ARB_draw_buffers
extern PFNGLDRAWBUFFERSARBPROC glDrawBuffersARB;
+
#elif LL_DARWIN
//----------------------------------------------------------------------------
// LL_DARWIN
@@ -685,6 +702,9 @@ extern PFNGLDRAWBUFFERSARBPROC glDrawBuffersARB;
// Note that they also must not be called on 10.3.9. This should be taken care of by a runtime check for the existence of the GL extension.
#include <AvailabilityMacros.h>
+//GL_EXT_blend_func_separate
+extern void glBlendFuncSeparateEXT(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha) AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER;
+
// GL_EXT_framebuffer_object
extern GLboolean glIsRenderbufferEXT(GLuint renderbuffer) AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER;
extern void glBindRenderbufferEXT(GLenum target, GLuint renderbuffer) AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER;
diff --git a/indra/llrender/llrender.cpp b/indra/llrender/llrender.cpp
index c3540a717c..5597b23c69 100644
--- a/indra/llrender/llrender.cpp
+++ b/indra/llrender/llrender.cpp
@@ -778,8 +778,10 @@ LLRender::LLRender()
mCurrAlphaFunc = CF_DEFAULT;
mCurrAlphaFuncVal = 0.01f;
- mCurrBlendSFactor = BF_UNDEF;
- mCurrBlendDFactor = BF_UNDEF;
+ mCurrBlendColorSFactor = BF_UNDEF;
+ mCurrBlendAlphaSFactor = BF_UNDEF;
+ mCurrBlendColorDFactor = BF_UNDEF;
+ mCurrBlendAlphaDFactor = BF_UNDEF;
}
LLRender::~LLRender()
@@ -995,15 +997,44 @@ void LLRender::blendFunc(eBlendFactor sfactor, eBlendFactor dfactor)
{
llassert(sfactor < BF_UNDEF);
llassert(dfactor < BF_UNDEF);
- if (mCurrBlendSFactor != sfactor || mCurrBlendDFactor != dfactor)
+ if (mCurrBlendColorSFactor != sfactor || mCurrBlendColorDFactor != dfactor ||
+ mCurrBlendAlphaSFactor != sfactor || mCurrBlendAlphaDFactor != dfactor)
{
- mCurrBlendSFactor = sfactor;
- mCurrBlendDFactor = dfactor;
+ mCurrBlendColorSFactor = sfactor;
+ mCurrBlendAlphaSFactor = sfactor;
+ mCurrBlendColorDFactor = dfactor;
+ mCurrBlendAlphaDFactor = dfactor;
flush();
glBlendFunc(sGLBlendFactor[sfactor], sGLBlendFactor[dfactor]);
}
}
+void LLRender::blendFunc(eBlendFactor color_sfactor, eBlendFactor color_dfactor,
+ eBlendFactor alpha_sfactor, eBlendFactor alpha_dfactor)
+{
+ llassert(color_sfactor < BF_UNDEF);
+ llassert(color_dfactor < BF_UNDEF);
+ llassert(alpha_sfactor < BF_UNDEF);
+ llassert(alpha_dfactor < BF_UNDEF);
+ if (!gGLManager.mHasBlendFuncSeparate)
+ {
+ LL_WARNS_ONCE("render") << "no glBlendFuncSeparateEXT(), using color-only blend func" << llendl;
+ blendFunc(color_sfactor, color_dfactor);
+ return;
+ }
+ if (mCurrBlendColorSFactor != color_sfactor || mCurrBlendColorDFactor != color_dfactor ||
+ mCurrBlendAlphaSFactor != alpha_sfactor || mCurrBlendAlphaDFactor != alpha_dfactor)
+ {
+ mCurrBlendColorSFactor = color_sfactor;
+ mCurrBlendAlphaSFactor = alpha_sfactor;
+ mCurrBlendColorDFactor = color_dfactor;
+ mCurrBlendAlphaDFactor = alpha_dfactor;
+ flush();
+ glBlendFuncSeparateEXT(sGLBlendFactor[color_sfactor], sGLBlendFactor[color_dfactor],
+ sGLBlendFactor[alpha_sfactor], sGLBlendFactor[alpha_dfactor]);
+ }
+}
+
LLTexUnit* LLRender::getTexUnit(U32 index)
{
if (index < mTexUnits.size())
diff --git a/indra/llrender/llrender.h b/indra/llrender/llrender.h
index a90fbd4a5c..f6c87aa1db 100644
--- a/indra/llrender/llrender.h
+++ b/indra/llrender/llrender.h
@@ -323,7 +323,11 @@ public:
void setAlphaRejectSettings(eCompareFunc func, F32 value = 0.01f);
+ // applies blend func to both color and alpha
void blendFunc(eBlendFactor sfactor, eBlendFactor dfactor);
+ // applies separate blend functions to color and alpha
+ void blendFunc(eBlendFactor color_sfactor, eBlendFactor color_dfactor,
+ eBlendFactor alpha_sfactor, eBlendFactor alpha_dfactor);
LLTexUnit* getTexUnit(U32 index);
@@ -362,8 +366,10 @@ private:
std::vector<LLTexUnit*> mTexUnits;
LLTexUnit* mDummyTexUnit;
- eBlendFactor mCurrBlendSFactor;
- eBlendFactor mCurrBlendDFactor;
+ eBlendFactor mCurrBlendColorSFactor;
+ eBlendFactor mCurrBlendColorDFactor;
+ eBlendFactor mCurrBlendAlphaSFactor;
+ eBlendFactor mCurrBlendAlphaDFactor;
F32 mMaxAnisotropy;
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 08:34:38 +0000