-/* $Id: buffers.c,v 1.23 2001/01/23 23:39:36 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 "glheader.h"
#include "accum.h"
#include "buffers.h"
+#include "colormac.h"
#include "context.h"
#include "depth.h"
#include "enums.h"
#include "macros.h"
-#include "masking.h"
#include "mem.h"
#include "stencil.h"
#include "state.h"
#include "mtypes.h"
-#include "swrast/swrast.h"
#endif
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
- if (ctx->Color.ClearIndex == (GLuint)c)
+ if (ctx->Color.ClearIndex == (GLuint) c)
return;
-
FLUSH_VERTICES(ctx, _NEW_COLOR);
ctx->Color.ClearIndex = (GLuint) c;
- if (!ctx->Visual.rgbMode) {
+ if (!ctx->Visual.rgbMode && ctx->Driver.ClearIndex) {
/* it's OK to call glClearIndex in RGBA mode but it should be a NOP */
(*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex );
}
void
-_mesa_ClearColor( GLclampf red, GLclampf green,
- GLclampf blue, GLclampf alpha )
+_mesa_ClearColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )
{
- GLfloat tmp[4];
+ GLchan tmp[4];
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
- tmp[0] = CLAMP( red, 0.0, 1.0 );
- tmp[1] = CLAMP( green, 0.0, 1.0 );
- tmp[2] = CLAMP( blue, 0.0, 1.0 );
- tmp[3] = CLAMP( alpha, 0.0, 1.0 );
+ UNCLAMPED_FLOAT_TO_CHAN(tmp[0], red);
+ UNCLAMPED_FLOAT_TO_CHAN(tmp[1], green);
+ UNCLAMPED_FLOAT_TO_CHAN(tmp[2], blue);
+ UNCLAMPED_FLOAT_TO_CHAN(tmp[3], alpha);
if (TEST_EQ_4V(tmp, ctx->Color.ClearColor))
return;
FLUSH_VERTICES(ctx, _NEW_COLOR);
- COPY_4FV( ctx->Color.ClearColor, tmp );
-
- if (ctx->Visual.rgbMode) {
- GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
- GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
- GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
- GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
- (*ctx->Driver.ClearColor)( ctx, r, g, b, a );
+ COPY_CHAN4(ctx->Color.ClearColor, tmp);
+
+ if (ctx->Visual.rgbMode && ctx->Driver.ClearColor) {
+ /* it's OK to call glClearColor in CI mode but it should be a NOP */
+ (*ctx->Driver.ClearColor)(ctx, ctx->Color.ClearColor);
}
}
-
-
-
void
_mesa_Clear( GLbitfield mask )
{
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) {
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
GLbitfield ddMask;
- GLbitfield newMask;
/* don't clear depth buffer if depth writing disabled */
if (!ctx->Depth.Mask)
}
ASSERT(ctx->Driver.Clear);
- newMask = (*ctx->Driver.Clear)( ctx, ddMask, !ctx->Scissor.Enabled,
- x, y, width, height );
-
-#ifdef DEBUG
- {
- GLbitfield legalBits = DD_FRONT_LEFT_BIT |
- DD_FRONT_RIGHT_BIT |
- DD_BACK_LEFT_BIT |
- DD_BACK_RIGHT_BIT |
- DD_DEPTH_BIT |
- DD_STENCIL_BIT |
- DD_ACCUM_BIT;
- assert((newMask & (~legalBits)) == 0);
- }
-#endif
-
- if (newMask)
- _swrast_Clear( ctx, newMask, !ctx->Scissor.Enabled,
- x, y, width, height );
+ 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->DrawBuffer->Width = buf_width;
ctx->DrawBuffer->Height = buf_height;
- _swrast_alloc_buffers( ctx );
+ 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;
}
+
projects / mesa.git / blobdiff