-/* $Id: buffers.c,v 1.27 2001/03/03 20:33:27 brianp Exp $ */
+/* $Id: buffers.c,v 1.32 2002/02/15 16:25:16 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 4.1
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2002 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"),
#include "depth.h"
#include "enums.h"
#include "macros.h"
-#include "masking.h"
#include "mem.h"
#include "stencil.h"
#include "state.h"
if (ctx->Color.ClearIndex == (GLuint) c)
return;
-
+
FLUSH_VERTICES(ctx, _NEW_COLOR);
ctx->Color.ClearIndex = (GLuint) c;
if (MESA_VERBOSE & VERBOSE_API)
fprintf(stderr, "glClear 0x%x\n", mask);
+ if (mask & ~(GL_COLOR_BUFFER_BIT |
+ GL_DEPTH_BUFFER_BIT |
+ GL_STENCIL_BUFFER_BIT |
+ GL_ACCUM_BUFFER_BIT)) {
+ /* invalid bit set */
+ _mesa_error( ctx, GL_INVALID_VALUE, "glClear(mask)");
+ return;
+ }
+
if (ctx->NewState) {
_mesa_update_state( ctx ); /* update _Xmin, etc */
}
}
ASSERT(ctx->Driver.Clear);
- ctx->Driver.Clear( ctx, ddMask, !ctx->Scissor.Enabled,
+ ctx->Driver.Clear( ctx, ddMask, (GLboolean) !ctx->Scissor.Enabled,
x, y, width, height );
}
}
ctx->Driver.ResizeBuffersMESA( ctx );
}
+
+
+void
+_mesa_Scissor( GLint x, GLint y, GLsizei width, GLsizei height )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glScissor" );
+ return;
+ }
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ fprintf(stderr, "glScissor %d %d %d %d\n", x, y, width, height);
+
+ if (x == ctx->Scissor.X &&
+ y == ctx->Scissor.Y &&
+ width == ctx->Scissor.Width &&
+ height == ctx->Scissor.Height)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_SCISSOR);
+ ctx->Scissor.X = x;
+ ctx->Scissor.Y = y;
+ ctx->Scissor.Width = width;
+ ctx->Scissor.Height = height;
+
+ if (ctx->Driver.Scissor)
+ ctx->Driver.Scissor( ctx, x, y, width, height );
+}
+
+
+/*
+ * XXX move somewhere else someday?
+ */
+void
+_mesa_SampleCoverageARB(GLclampf value, GLboolean invert)
+{
+ GLcontext *ctx = _mesa_get_current_context();
+
+ if (!ctx->Extensions.ARB_multisample) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glSampleCoverageARB");
+ return;
+ }
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx );
+ ctx->Multisample.SampleCoverageValue = (GLfloat) CLAMP(value, 0.0, 1.0);
+ ctx->Multisample.SampleCoverageInvert = invert;
+ ctx->NewState |= _NEW_MULTISAMPLE;
+}
+