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-rw-r--r--indra/llrender/llgl.cpp53
1 files changed, 44 insertions, 9 deletions
diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index c0edd92bc1..6ea63809f8 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -610,41 +610,46 @@ void LLGLManager::shutdownGL()
void LLGLManager::initExtensions()
{
#if LL_MESA_HEADLESS
-# if GL_ARB_multitexture
+# ifdef GL_ARB_multitexture
mHasMultitexture = TRUE;
# else
mHasMultitexture = FALSE;
# endif
-# if GL_ARB_texture_env_combine
+# ifdef GL_ARB_texture_env_combine
mHasARBEnvCombine = TRUE;
# else
mHasARBEnvCombine = FALSE;
# endif
-# if GL_ARB_texture_compression
+# ifdef GL_ARB_texture_compression
mHasCompressedTextures = TRUE;
# else
mHasCompressedTextures = FALSE;
# endif
-# if GL_ARB_vertex_buffer_object
+# ifdef GL_ARB_vertex_buffer_object
mHasVertexBufferObject = TRUE;
# else
mHasVertexBufferObject = FALSE;
# endif
-# if GL_EXT_framebuffer_object
+# ifdef GL_EXT_framebuffer_object
mHasFramebufferObject = TRUE;
# else
mHasFramebufferObject = FALSE;
# endif
-# if GL_EXT_framebuffer_multisample
+# ifdef GL_EXT_framebuffer_multisample
mHasFramebufferMultisample = TRUE;
# else
mHasFramebufferMultisample = FALSE;
# endif
-# if GL_ARB_draw_buffers
+# ifdef GL_ARB_draw_buffers
mHasDrawBuffers = TRUE;
#else
mHasDrawBuffers = FALSE;
# endif
+# if defined(GL_NV_depth_clamp) || defined(GL_ARB_depth_clamp)
+ mHasDepthClamp = TRUE;
+#else
+ mHasDepthClamp = FALSE;
+#endif
# if GL_EXT_blend_func_separate
mHasBlendFuncSeparate = TRUE;
#else
@@ -671,6 +676,7 @@ void LLGLManager::initExtensions()
mHasCompressedTextures = glh_init_extensions("GL_ARB_texture_compression");
mHasOcclusionQuery = ExtensionExists("GL_ARB_occlusion_query", gGLHExts.mSysExts);
mHasVertexBufferObject = ExtensionExists("GL_ARB_vertex_buffer_object", gGLHExts.mSysExts);
+ mHasDepthClamp = ExtensionExists("GL_ARB_depth_clamp", gGLHExts.mSysExts) || ExtensionExists("GL_NV_depth_clamp", gGLHExts.mSysExts);
// mask out FBO support when packed_depth_stencil isn't there 'cause we need it for LLRenderTarget -Brad
mHasFramebufferObject = ExtensionExists("GL_EXT_framebuffer_object", gGLHExts.mSysExts)
&& ExtensionExists("GL_EXT_packed_depth_stencil", gGLHExts.mSysExts);
@@ -694,6 +700,7 @@ void LLGLManager::initExtensions()
if (getenv("LL_GL_NOEXT"))
{
//mHasMultitexture = FALSE; // NEEDED!
+ mHasDepthClamp = FALSE;
mHasARBEnvCombine = FALSE;
mHasCompressedTextures = FALSE;
mHasVertexBufferObject = FALSE;
@@ -755,6 +762,7 @@ void LLGLManager::initExtensions()
if (strchr(blacklist,'s')) mHasFramebufferMultisample = FALSE;
if (strchr(blacklist,'t')) mHasTextureRectangle = FALSE;
if (strchr(blacklist,'u')) mHasBlendFuncSeparate = FALSE;//S
+ if (strchr(blacklist,'v')) mHasDepthClamp = FALSE;
}
#endif // LL_LINUX || LL_SOLARIS
@@ -1047,6 +1055,33 @@ void flush_glerror()
glGetError();
}
+//this function outputs gl error to the log file, does not crash the code.
+void log_glerror()
+{
+ if (LL_UNLIKELY(!gGLManager.mInited))
+ {
+ return ;
+ }
+ // Create or update texture to be used with this data
+ GLenum error;
+ error = glGetError();
+ while (LL_UNLIKELY(error))
+ {
+ GLubyte const * gl_error_msg = gluErrorString(error);
+ if (NULL != gl_error_msg)
+ {
+ llwarns << "GL Error: " << error << " GL Error String: " << gl_error_msg << llendl ;
+ }
+ else
+ {
+ // gluErrorString returns NULL for some extensions' error codes.
+ // you'll probably have to grep for the number in glext.h.
+ llwarns << "GL Error: UNKNOWN 0x" << std::hex << error << std::dec << llendl;
+ }
+ error = glGetError();
+ }
+}
+
void do_assert_glerror()
{
if (LL_UNLIKELY(!gGLManager.mInited))
@@ -2037,7 +2072,7 @@ void LLGLDepthTest::checkState()
}
}
-LLGLClampToFarClip::LLGLClampToFarClip(glh::matrix4f P)
+LLGLSquashToFarClip::LLGLSquashToFarClip(glh::matrix4f P)
{
for (U32 i = 0; i < 4; i++)
{
@@ -2050,7 +2085,7 @@ LLGLClampToFarClip::LLGLClampToFarClip(glh::matrix4f P)
glMatrixMode(GL_MODELVIEW);
}
-LLGLClampToFarClip::~LLGLClampToFarClip()
+LLGLSquashToFarClip::~LLGLSquashToFarClip()
{
glMatrixMode(GL_PROJECTION);
glPopMatrix();