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/* $Id: hint.c,v 1.4 2000/05/23 20:10:50 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
*
* Copyright (C) 1999-2000 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
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifdef PC_HEADER
#include "all.h"
#else
#include "glheader.h"
#include "enums.h"
#include "context.h"
#include "hint.h"
#include "state.h"
#endif
void
_mesa_Hint( GLenum target, GLenum mode )
{
GET_CURRENT_CONTEXT(ctx);
(void) _mesa_try_Hint( ctx, target, mode );
}
GLboolean
_mesa_try_Hint( GLcontext *ctx, GLenum target, GLenum mode )
{
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, "glHint", GL_FALSE);
if (MESA_VERBOSE & VERBOSE_API)
fprintf(stderr, "glHint %s %d\n", gl_lookup_enum_by_nr(target), mode);
if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
gl_error(ctx, GL_INVALID_ENUM, "glHint(mode)");
return GL_FALSE;
}
switch (target) {
case GL_FOG_HINT:
ctx->Hint.Fog = mode;
break;
case GL_LINE_SMOOTH_HINT:
ctx->Hint.LineSmooth = mode;
break;
case GL_PERSPECTIVE_CORRECTION_HINT:
ctx->Hint.PerspectiveCorrection = mode;
break;
case GL_POINT_SMOOTH_HINT:
ctx->Hint.PointSmooth = mode;
break;
case GL_POLYGON_SMOOTH_HINT:
ctx->Hint.PolygonSmooth = mode;
break;
case GL_PREFER_DOUBLEBUFFER_HINT_PGI:
case GL_STRICT_DEPTHFUNC_HINT_PGI:
break;
case GL_STRICT_LIGHTING_HINT_PGI:
ctx->Hint.StrictLighting = mode;
break;
case GL_STRICT_SCISSOR_HINT_PGI:
case GL_FULL_STIPPLE_HINT_PGI:
case GL_NATIVE_GRAPHICS_BEGIN_HINT_PGI:
case GL_NATIVE_GRAPHICS_END_HINT_PGI:
case GL_CONSERVE_MEMORY_HINT_PGI:
case GL_RECLAIM_MEMORY_HINT_PGI:
break;
case GL_ALWAYS_FAST_HINT_PGI:
if (mode) {
ctx->Hint.AllowDrawWin = GL_TRUE;
ctx->Hint.AllowDrawFrg = GL_FALSE;
ctx->Hint.AllowDrawMem = GL_FALSE;
} else {
ctx->Hint.AllowDrawWin = GL_TRUE;
ctx->Hint.AllowDrawFrg = GL_TRUE;
ctx->Hint.AllowDrawMem = GL_TRUE;
}
break;
case GL_ALWAYS_SOFT_HINT_PGI:
ctx->Hint.AllowDrawWin = GL_TRUE;
ctx->Hint.AllowDrawFrg = GL_TRUE;
ctx->Hint.AllowDrawMem = GL_TRUE;
break;
case GL_ALLOW_DRAW_OBJ_HINT_PGI:
break;
case GL_ALLOW_DRAW_WIN_HINT_PGI:
ctx->Hint.AllowDrawWin = mode;
break;
case GL_ALLOW_DRAW_FRG_HINT_PGI:
ctx->Hint.AllowDrawFrg = mode;
break;
case GL_ALLOW_DRAW_MEM_HINT_PGI:
ctx->Hint.AllowDrawMem = mode;
break;
case GL_CLIP_NEAR_HINT_PGI:
case GL_CLIP_FAR_HINT_PGI:
case GL_WIDE_LINE_HINT_PGI:
case GL_BACK_NORMALS_HINT_PGI:
case GL_NATIVE_GRAPHICS_HANDLE_PGI:
break;
/* GL_EXT_clip_volume_hint */
case GL_CLIP_VOLUME_CLIPPING_HINT_EXT:
ctx->Hint.ClipVolumeClipping = mode;
break;
/* GL_ARB_texture_compression */
case GL_TEXTURE_COMPRESSION_HINT_ARB:
if (ctx->Extensions.HaveTextureCompression) {
ctx->Hint.TextureCompression = mode;
}
else {
gl_error(ctx, GL_INVALID_ENUM, "glHint(target)");
}
break;
default:
gl_error(ctx, GL_INVALID_ENUM, "glHint(target)");
return GL_FALSE;
}
ctx->NewState |= NEW_ALL; /* just to be safe */
if (ctx->Driver.Hint) {
(*ctx->Driver.Hint)( ctx, target, mode );
}
return GL_TRUE;
}
void
_mesa_HintPGI( GLenum target, GLint mode )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glHintPGI");
if (MESA_VERBOSE & VERBOSE_API)
fprintf(stderr, "glHintPGI %s %d\n", gl_lookup_enum_by_nr(target), mode);
if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
gl_error(ctx, GL_INVALID_ENUM, "glHintPGI(mode)");
return;
}
switch (target) {
case GL_PREFER_DOUBLEBUFFER_HINT_PGI:
case GL_STRICT_DEPTHFUNC_HINT_PGI:
case GL_STRICT_LIGHTING_HINT_PGI:
case GL_STRICT_SCISSOR_HINT_PGI:
case GL_FULL_STIPPLE_HINT_PGI:
case GL_NATIVE_GRAPHICS_BEGIN_HINT_PGI:
case GL_NATIVE_GRAPHICS_END_HINT_PGI:
case GL_CONSERVE_MEMORY_HINT_PGI:
case GL_RECLAIM_MEMORY_HINT_PGI:
case GL_ALWAYS_FAST_HINT_PGI:
case GL_ALWAYS_SOFT_HINT_PGI:
case GL_ALLOW_DRAW_OBJ_HINT_PGI:
case GL_ALLOW_DRAW_WIN_HINT_PGI:
case GL_ALLOW_DRAW_FRG_HINT_PGI:
case GL_ALLOW_DRAW_MEM_HINT_PGI:
case GL_CLIP_NEAR_HINT_PGI:
case GL_CLIP_FAR_HINT_PGI:
case GL_WIDE_LINE_HINT_PGI:
case GL_BACK_NORMALS_HINT_PGI:
case GL_NATIVE_GRAPHICS_HANDLE_PGI:
(void) _mesa_try_Hint(ctx, target, (GLenum) mode);
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glHintPGI(target)" );
return;
}
}
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