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authorBrian Paul <[email protected]>2012-02-19 19:50:31 -0700
committerBrian Paul <[email protected]>2012-02-20 08:04:33 -0700
commit45453d8f69a8e7d4088c71d238228c142e3be59f (patch)
treea61e34c6ca59698af75fc2bd2d6e36ccabfc4373
parente14b3573676af291669ee6ef4a295fc61a22c8d8 (diff)
mesa: check for no state change in Enable/DisableVertexAttribArray()
Avoid setting dirty state flags when enabling or disabling a vertex attribute arrays when there's no change. Reviewed-by: José Fonseca <[email protected]>
-rw-r--r--src/mesa/main/varray.c32
1 files changed, 22 insertions, 10 deletions
diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index dfe5064e3c0..93f6fcd9bea 100644
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -483,6 +483,7 @@ _mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type,
void GLAPIENTRY
_mesa_EnableVertexAttribArrayARB(GLuint index)
{
+ struct gl_array_object *arrayObj;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -492,18 +493,24 @@ _mesa_EnableVertexAttribArrayARB(GLuint index)
return;
}
- ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
+ arrayObj = ctx->Array.ArrayObj;
+
+ ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(arrayObj->VertexAttrib));
- FLUSH_VERTICES(ctx, _NEW_ARRAY);
- ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_TRUE;
- ctx->Array.ArrayObj->_Enabled |= VERT_BIT_GENERIC(index);
- ctx->Array.NewState |= VERT_BIT_GENERIC(index);
+ if (!arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled) {
+ /* was disabled, now being enabled */
+ FLUSH_VERTICES(ctx, _NEW_ARRAY);
+ arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_TRUE;
+ arrayObj->_Enabled |= VERT_BIT_GENERIC(index);
+ ctx->Array.NewState |= VERT_BIT_GENERIC(index);
+ }
}
void GLAPIENTRY
_mesa_DisableVertexAttribArrayARB(GLuint index)
{
+ struct gl_array_object *arrayObj;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -513,12 +520,17 @@ _mesa_DisableVertexAttribArrayARB(GLuint index)
return;
}
- ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
+ arrayObj = ctx->Array.ArrayObj;
+
+ ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(arrayObj->VertexAttrib));
- FLUSH_VERTICES(ctx, _NEW_ARRAY);
- ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_FALSE;
- ctx->Array.ArrayObj->_Enabled &= ~VERT_BIT_GENERIC(index);
- ctx->Array.NewState |= VERT_BIT_GENERIC(index);
+ if (arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled) {
+ /* was enabled, now being disabled */
+ FLUSH_VERTICES(ctx, _NEW_ARRAY);
+ arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_FALSE;
+ arrayObj->_Enabled &= ~VERT_BIT_GENERIC(index);
+ ctx->Array.NewState |= VERT_BIT_GENERIC(index);
+ }
}