-/* $Id: buffers.c,v 1.26 2001/01/29 22:10:37 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) {
- gl_update_state( ctx ); /* update _Xmin, etc */
+ _mesa_update_state( ctx ); /* update _Xmin, etc */
}
if (ctx->RenderMode==GL_RENDER) {
}
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 );
}
}
if (MESA_VERBOSE & VERBOSE_API)
- fprintf(stderr, "glDrawBuffer %s\n", gl_lookup_enum_by_nr(mode));
+ fprintf(stderr, "glDrawBuffer %s\n", _mesa_lookup_enum_by_nr(mode));
switch (mode) {
case GL_AUX0:
case GL_AUX2:
case GL_AUX3:
/* AUX buffers not implemented in Mesa at this time */
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;
case GL_RIGHT:
if (!ctx->Visual.stereoMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;}
if (ctx->Visual.doubleBufferMode)
ctx->Color.DrawDestMask = FRONT_RIGHT_BIT | BACK_RIGHT_BIT;
break;
case GL_FRONT_RIGHT:
if (!ctx->Visual.stereoMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;
}
ctx->Color.DrawDestMask = FRONT_RIGHT_BIT;
break;
case GL_BACK_RIGHT:
if (!ctx->Visual.stereoMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;
}
if (!ctx->Visual.doubleBufferMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;
}
ctx->Color.DrawDestMask = BACK_RIGHT_BIT;
break;
case GL_BACK_LEFT:
if (!ctx->Visual.doubleBufferMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;
}
ctx->Color.DrawDestMask = BACK_LEFT_BIT;
break;
case GL_FRONT_AND_BACK:
if (!ctx->Visual.doubleBufferMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;
}
if (ctx->Visual.stereoMode)
break;
case GL_BACK:
if (!ctx->Visual.doubleBufferMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
return;
}
if (ctx->Visual.stereoMode)
ctx->Color.DrawDestMask = 0;
break;
default:
- gl_error( ctx, GL_INVALID_ENUM, "glDrawBuffer" );
+ _mesa_error( ctx, GL_INVALID_ENUM, "glDrawBuffer" );
return;
}
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (MESA_VERBOSE & VERBOSE_API)
- fprintf(stderr, "glReadBuffer %s\n", gl_lookup_enum_by_nr(mode));
+ fprintf(stderr, "glReadBuffer %s\n", _mesa_lookup_enum_by_nr(mode));
switch (mode) {
case GL_AUX0:
case GL_AUX2:
case GL_AUX3:
/* AUX buffers not implemented in Mesa at this time */
- gl_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
return;
case GL_LEFT:
case GL_FRONT:
case GL_BACK_LEFT:
/* Back-Left buffer, requires double buffering */
if (!ctx->Visual.doubleBufferMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
return;
}
ctx->Pixel.DriverReadBuffer = GL_BACK_LEFT;
case GL_FRONT_RIGHT:
case GL_RIGHT:
if (!ctx->Visual.stereoMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
return;
}
ctx->Pixel.DriverReadBuffer = GL_FRONT_RIGHT;
break;
case GL_BACK_RIGHT:
if (!ctx->Visual.stereoMode || !ctx->Visual.doubleBufferMode) {
- gl_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
+ _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
return;
}
ctx->Pixel.DriverReadBuffer = GL_BACK_RIGHT;
break;
default:
- gl_error( ctx, GL_INVALID_ENUM, "glReadBuffer" );
+ _mesa_error( ctx, GL_INVALID_ENUM, "glReadBuffer" );
return;
}
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;
+}
+