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/*
* GLX Hardware Device Driver for Matrox Millenium G200
* Copyright (C) 1999 Wittawat Yamwong
*
* 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
* WITTAWAT YAMWONG, OR ANY OTHER CONTRIBUTORS 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.
*
*
* John Carmack <johnc@idsoftware.com>
* Keith Whitwell <keithw@precisioninsight.com>
*/
#ifndef MGATEX_INC
#define MGATEX_INC
#include "types.h"
#include "mgacommon.h"
#include "mm.h"
#define MGA_TEX_MAXLEVELS 5
typedef struct mga_texture_object_s {
struct mga_texture_object_s *next;
struct mga_texture_object_s *prev;
struct gl_texture_object *tObj;
mgaContextPtr ctx;
PMemBlock MemBlock;
mgaUI32 offsets[MGA_TEX_MAXLEVELS];
int lastLevel;
mgaUI32 dirty_images;
mgaUI32 totalSize;
int texelBytes;
mgaUI32 age;
int bound;
int heap; /* agp or card */
mgaUI32 Setup[MGA_TEX_SETUP_SIZE];
} mgaTextureObject_t;
typedef mgaTextureObject_t *mgaTextureObjectPtr;
/* called to check for environment variable options */
void mgaInitTextureSystem( void );
/* called when a context is being destroyed */
void mgaDestroyContextTextures( mgaContextPtr ctx );
/* Called before a primitive is rendered to make sure the texture
* state is properly setup. Texture residence is checked later
* when we grab the lock.
*/
void mgaUpdateTextureState( GLcontext *ctx );
/* Driver functions which are called directly from mesa */
void mgaTexEnv( GLcontext *ctx, GLenum pname, const GLfloat *param );
void mgaTexImage( GLcontext *ctx, GLenum target,
struct gl_texture_object *tObj, GLint level,
GLint internalFormat,
const struct gl_texture_image *image );
void mgaTexSubImage( GLcontext *ctx, GLenum target,
struct gl_texture_object *tObj, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLint internalFormat,
const struct gl_texture_image *image );
void mgaTexParameter( GLcontext *ctx, GLenum target,
struct gl_texture_object *tObj,
GLenum pname, const GLfloat *params );
void mgaBindTexture( GLcontext *ctx, GLenum target,
struct gl_texture_object *tObj );
void mgaDeleteTexture( GLcontext *ctx, struct gl_texture_object *tObj );
void mgaUpdateTexturePalette( GLcontext *ctx, struct gl_texture_object *tObj );
GLboolean mgaIsTextureResident( GLcontext *ctx, struct gl_texture_object *t );
void mgaConvertTexture( mgaUI32 *dest, int texelBytes,
struct gl_texture_image *image,
int x, int y, int width, int height );
int mgaUploadTexImages( mgaContextPtr mmesa, mgaTextureObjectPtr t );
void mgaAgeTextures( mgaContextPtr mmesa, int heap );
void mgaDDInitTextureFuncs( GLcontext *ctx );
#endif
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