-/* $Id: accum.c,v 1.31 2000/10/31 18:09:44 keithw Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.5
- *
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
- *
+ * Version: 5.1
+ *
+ * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ *
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
- *
+ *
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
-
-#ifdef PC_HEADER
-#include "all.h"
-#else
#include "glheader.h"
#include "accum.h"
#include "context.h"
+#include "imports.h"
#include "macros.h"
-#include "mem.h"
#include "state.h"
-#include "types.h"
-#include "swrast/swrast.h"
-#endif
-
-
+#include "mtypes.h"
-void
+void GLAPIENTRY
_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);
+
+ tmp[0] = CLAMP( red, -1.0F, 1.0F );
+ tmp[1] = CLAMP( green, -1.0F, 1.0F );
+ tmp[2] = CLAMP( blue, -1.0F, 1.0F );
+ tmp[3] = CLAMP( alpha, -1.0F, 1.0F );
+
+ if (TEST_EQ_4V(tmp, ctx->Accum.ClearColor))
+ return;
- 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;
+ FLUSH_VERTICES(ctx, _NEW_ACCUM);
+ COPY_4FV( ctx->Accum.ClearColor, tmp );
}
-void
+void GLAPIENTRY
_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");
+ if (ctx->Visual.accumRedBits == 0 || ctx->DrawBuffer != ctx->ReadBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glAccum");
return;
}
if (ctx->NewState)
- gl_update_state( ctx );
+ _mesa_update_state( ctx );
+
+ if (ctx->RenderMode != GL_RENDER) {
+ /* no-op */
+ return;
+ }
/* Determine region to operate upon. */
if (ctx->Scissor.Enabled) {
height = ctx->DrawBuffer->Height;
}
- if (!ctx->Driver.Accum ||
- !ctx->Driver.Accum( ctx, op, value, xpos, ypos, width, height ))
- _swrast_Accum( ctx, op, value, xpos, ypos, width, height );
+ ctx->Driver.Accum( ctx, op, value, xpos, ypos, width, height );
+}
+
+void
+_mesa_init_accum( GLcontext *ctx )
+{
+ /* Accumulate buffer group */
+ ASSIGN_4V( ctx->Accum.ClearColor, 0.0, 0.0, 0.0, 0.0 );
}