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SWTC trick

This commit is contained in:
Daniel Borca 2004-10-12 06:44:34 +00:00
parent 65a9ca3381
commit 92e1d5fd34
1 changed files with 44 additions and 2 deletions
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46
src/mesa/drivers/dos/dmesa.c
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@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
* Version: 6.1
* Version: 6.3
*
* Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
@ -23,7 +23,7 @@
*/
/*
* DOS/DJGPP device driver v1.6 for Mesa
* DOS/DJGPP device driver v1.7 for Mesa
*
* Copyright (c) 2003 - Daniel Borca
* Email : dborca@users.sourceforge.net
@ -62,6 +62,8 @@
#include "GL/dmesa.h"
#define SWTC 1 /* SW texture compression */
/*
* In C++ terms, this class derives from the GLvisual class.
@ -713,6 +715,21 @@ static void dmesa_choose_line (GLcontext *ctx)
/****************************************************************************
* Miscellaneous device driver funcs
***************************************************************************/
static const struct gl_texture_format *
choose_tex_format( GLcontext *ctx, GLint internalFormat,
GLenum format, GLenum type )
{
switch (internalFormat) {
case GL_COMPRESSED_RGB_ARB:
return &_mesa_texformat_rgb;
case GL_COMPRESSED_RGBA_ARB:
return &_mesa_texformat_rgba;
default:
return _mesa_choose_tex_format(ctx, internalFormat, format, type);
}
}
static void clear_index (GLcontext *ctx, GLuint index)
{
@ -892,6 +909,9 @@ static void dmesa_init_driver_functions (DMesaVisual visual,
driver->Clear = clear;
driver->ClearColor = clear_color;
driver->ClearIndex = clear_index;
#if SWTC
driver->ChooseTextureFormat = choose_tex_format;
#endif
}
@ -1158,6 +1178,13 @@ DMesaContext DMesaCreateContext (DMesaVisual visual,
_mesa_enable_1_4_extensions(c);
_mesa_enable_1_5_extensions(c);
_mesa_enable_2_0_extensions(c);
#if SWTC
if (c->Mesa_DXTn) {
_mesa_enable_extension(c, "GL_EXT_texture_compression_s3tc");
_mesa_enable_extension(c, "GL_S3_s3tc");
}
_mesa_enable_extension(c, "GL_3DFX_texture_compression_FXT1");
#endif
/* you probably have to do a bunch of other initializations here. */
((DMesaContext)c)->visual = visual;
@ -1383,3 +1410,18 @@ int DMesaGetIntegerv (GLenum pname, GLint *params)
return 0;
}
#if USE_EXTERNAL_DXTN_LIB
#include <sys/dxe.h>
extern_asm(___dj_assert);
extern_asm(_free);
extern_asm(_malloc);
DXE_EXPORT_TABLE_AUTO (___dxe_eta___dxtn)
DXE_EXPORT_ASM (___dj_assert)
DXE_EXPORT_ASM (_free)
DXE_EXPORT_ASM (_malloc)
DXE_EXPORT_END
#endif