diff options
| author | Dave Parks <davep@lindenlab.com> | 2012-02-10 20:04:19 -0600 |
|---|---|---|
| committer | Dave Parks <davep@lindenlab.com> | 2012-02-10 20:04:19 -0600 |
| commit | 3710c6110d65d3a604f7b419cd764cf5b9b98600 (patch) | |
| tree | 544b689c3c084976b05a69a34726524e6e68f214 /indra/llrender/llvertexbuffer.cpp | |
| parent | e0582d4bc71e2f367b4cf4a6f0b808451620b52f (diff) | |
SH-2908 Rework indexed texture rendering to use a uvec4 instead of a float for texture indices in the data stream. Also rework gl_FragColor overrides to not collide with some odd driver implementations.
Diffstat (limited to 'indra/llrender/llvertexbuffer.cpp')
| -rw-r--r-- | indra/llrender/llvertexbuffer.cpp | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp index e4a5cd0299..b2438ef824 100644 --- a/indra/llrender/llvertexbuffer.cpp +++ b/indra/llrender/llvertexbuffer.cpp @@ -284,6 +284,12 @@ void LLVertexBuffer::setupClientArrays(U32 data_mask) { bool error = false; + if (gGLManager.mGLSLVersionMajor < 2 && gGLManager.mGLSLVersionMinor < 30) + { + //make sure texture index is disabled + data_mask = data_mask & ~MAP_TEXTURE_INDEX; + } + if (LLGLSLShader::sNoFixedFunction) { for (U32 i = 0; i < TYPE_MAX; ++i) @@ -1193,7 +1199,7 @@ void LLVertexBuffer::setupVertexArray() 1, //TYPE_WEIGHT, 4, //TYPE_WEIGHT4, 4, //TYPE_CLOTHWEIGHT, - 1, //TYPE_TEXTURE_INDEX + 4, //TYPE_TEXTURE_INDEX }; U32 attrib_type[] = @@ -1210,7 +1216,24 @@ void LLVertexBuffer::setupVertexArray() GL_FLOAT, //TYPE_WEIGHT, GL_FLOAT, //TYPE_WEIGHT4, GL_FLOAT, //TYPE_CLOTHWEIGHT, - GL_FLOAT, //TYPE_TEXTURE_INDEX + GL_UNSIGNED_BYTE, //TYPE_TEXTURE_INDEX + }; + + bool attrib_integer[] = + { + false, //TYPE_VERTEX, + false, //TYPE_NORMAL, + false, //TYPE_TEXCOORD0, + false, //TYPE_TEXCOORD1, + false, //TYPE_TEXCOORD2, + false, //TYPE_TEXCOORD3, + false, //TYPE_COLOR, + false, //TYPE_EMISSIVE, + false, //TYPE_BINORMAL, + false, //TYPE_WEIGHT, + false, //TYPE_WEIGHT4, + false, //TYPE_CLOTHWEIGHT, + true, //TYPE_TEXTURE_INDEX }; U32 attrib_normalized[] = @@ -1238,7 +1261,19 @@ void LLVertexBuffer::setupVertexArray() if (mTypeMask & (1 << i)) { glEnableVertexAttribArrayARB(i); - glVertexAttribPointerARB(i, attrib_size[i], attrib_type[i], attrib_normalized[i], sTypeSize[i], (void*) mOffsets[i]); + + if (attrib_integer) + { + //glVertexattribIPointer requires GLSL 1.30 or later + if (gGLManager.mGLSLVersionMajor > 1 || gGLManager.mGLSLVersionMinor >= 30) + { + glVertexAttribIPointer(i, attrib_size[i], attrib_type[i], sTypeSize[i], (void*) mOffsets[i]); + } + } + else + { + glVertexAttribPointerARB(i, attrib_size[i], attrib_type[i], attrib_normalized[i], sTypeSize[i], (void*) mOffsets[i]); + } } else { @@ -2220,11 +2255,12 @@ void LLVertexBuffer::setupVertexBuffer(U32 data_mask) void* ptr = (void*)(base + mOffsets[TYPE_CLOTHWEIGHT]); glVertexAttribPointerARB(loc, 4, GL_FLOAT, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_CLOTHWEIGHT], ptr); } - if (data_mask & MAP_TEXTURE_INDEX) + if (data_mask & MAP_TEXTURE_INDEX && + (gGLManager.mGLSLVersionMajor >= 2 || gGLManager.mGLSLVersionMinor >= 30)) //indexed texture rendering requires GLSL 1.30 or later { S32 loc = TYPE_TEXTURE_INDEX; void *ptr = (void*) (base + mOffsets[TYPE_VERTEX] + 12); - glVertexAttribPointerARB(loc, 1, GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_VERTEX], ptr); + glVertexAttribIPointer(loc, 4, GL_UNSIGNED_BYTE, LLVertexBuffer::sTypeSize[TYPE_VERTEX], ptr); } if (data_mask & MAP_VERTEX) { |