From 45453d8f69a8e7d4088c71d238228c142e3be59f Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Sun, 19 Feb 2012 19:50:31 -0700 Subject: [PATCH] mesa: check for no state change in Enable/DisableVertexAttribArray() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Avoid setting dirty state flags when enabling or disabling a vertex attribute arrays when there's no change. Reviewed-by: José Fonseca --- src/mesa/main/varray.c | 32 ++++++++++++++++++++++---------- 1 file 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); + } } -- 2.30.2