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-rw-r--r--src/mesa/main/accum.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/src/mesa/main/accum.c b/src/mesa/main/accum.c
index 3f4c1f7d682..e8f9ca9f92a 100644
--- a/src/mesa/main/accum.c
+++ b/src/mesa/main/accum.c
@@ -1,4 +1,4 @@
-/* $Id: accum.c,v 1.32 2000/11/22 07:32:16 joukj Exp $ */
+/* $Id: accum.c,v 1.33 2000/12/26 05:09:27 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -44,24 +44,30 @@
void
_mesa_ClearAccum( GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha )
{
+ GLfloat tmp[4];
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glAccum");
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
- ctx->Accum.ClearColor[0] = CLAMP( red, -1.0, 1.0 );
- ctx->Accum.ClearColor[1] = CLAMP( green, -1.0, 1.0 );
- ctx->Accum.ClearColor[2] = CLAMP( blue, -1.0, 1.0 );
- ctx->Accum.ClearColor[3] = CLAMP( alpha, -1.0, 1.0 );
- ctx->NewState |= _NEW_ACCUM;
-}
+ tmp[0] = CLAMP( red, -1.0, 1.0 );
+ tmp[1] = CLAMP( green, -1.0, 1.0 );
+ tmp[2] = CLAMP( blue, -1.0, 1.0 );
+ tmp[3] = CLAMP( alpha, -1.0, 1.0 );
+
+ if (TEST_EQ_4V(tmp, ctx->Accum.ClearColor))
+ return;
+ FLUSH_VERTICES(ctx, _NEW_ACCUM);
+ COPY_4FV( ctx->Accum.ClearColor, tmp );
+}
+/* Should really be a driver-supplied function?
+ */
void
_mesa_Accum( GLenum op, GLfloat value )
{
GET_CURRENT_CONTEXT(ctx);
GLuint xpos, ypos, width, height;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glAccum");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (ctx->Visual.AccumRedBits == 0 || ctx->DrawBuffer != ctx->ReadBuffer) {
gl_error(ctx, GL_INVALID_OPERATION, "glAccum");