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mesa: check for no state change in VertexAttribDivisor() 

Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2012-02-27 20:28:09 -07:00
parent 9e68a8fa72
commit 738482eec9
1 changed files with 8 additions and 2 deletions
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10
src/mesa/main/varray.c
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@ -1117,8 +1117,9 @@ _mesa_PrimitiveRestartIndex(GLuint index)
void GLAPIENTRY
_mesa_VertexAttribDivisor(GLuint index, GLuint divisor)
{
struct gl_client_array *array;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (!ctx->Extensions.ARB_instanced_arrays) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()");
@ -1133,7 +1134,12 @@ _mesa_VertexAttribDivisor(GLuint index, GLuint divisor)
ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].InstanceDivisor = divisor;
array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)];
if (array->InstanceDivisor != divisor) {
FLUSH_VERTICES(ctx, _NEW_ARRAY);
array->InstanceDivisor = divisor;
ctx->Array.NewState |= VERT_BIT(VERT_ATTRIB_GENERIC(index));
}
}