src/mesa/drivers/dri/unichrome/via_tex.h

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 #ifndef _VIATEX_H
  27 #define _VIATEX_H
  28
  29 #include "mtypes.h"
  30 #include "mm.h"
  31
  32 #include "via_context.h"
  33 #include "via_3d_reg.h"
  34
  35 #define VIA_TEX_MAXLEVELS       10
  36
  37
  38 /* For shared texture space managment, these texture objects may also
  39  * be used as proxies for regions of texture memory containing other
  40  * client's textures.  Such proxy textures (not to be confused with GL
  41  * proxy textures) are subject to the same LRU aging we use for our
  42  * own private textures, and thus we have a mechanism where we can
  43  * fairly decide between kicking out our own textures and those of
  44  * other clients.
  45  *
  46  * Non-local texture objects have a valid MemBlock to describe the
  47  * region managed by the other client, and can be identified by
  48  * 't->globj == 0'
  49  */
  50 struct via_texture_object_t {
  51     struct via_texture_object_t *next, *prev;
  52
  53     GLuint age;
  54     struct gl_texture_object *globj;
  55
  56     int texelBytes;
  57     int totalSize;
  58
  59     struct {
  60         GLuint index;
  61         GLuint offset;
  62         GLuint size;
  63     } texMem;
  64     unsigned char* bufAddr;
  65
  66     GLuint inAGP;
  67     GLuint needClearCache;
  68     GLuint actualLevel;
  69
  70     GLuint maxLevel;
  71     GLuint dirtyImages;
  72
  73     struct {
  74         const struct gl_texture_image *image;
  75         int offset;               /* into bufAddr */
  76         int height;
  77         int internalFormat;
  78     } image[VIA_TEX_MAXLEVELS];
  79
  80     GLuint dirty;
  81
  82     GLuint regTexFM;
  83     GLuint regTexWidthLog2[2];
  84     GLuint regTexHeightLog2[2];
  85     GLuint regTexBaseH[4];
  86     struct {
  87         GLuint baseL;
  88         GLuint pitchLog2;
  89     } regTexBaseAndPitch[12];
  90
  91     GLint firstLevel, lastLevel;  /* upload tObj->Image[first .. lastLevel] */
  92 };
  93
  94 viaTextureObjectPtr viaAllocTextureObject(struct gl_texture_object *texObj);
  95 GLboolean viaUpdateTextureState(GLcontext *ctx);
  96 void viaInitTextureFuncs(struct dd_function_table * functions);
  97 void viaInitTextures(GLcontext *ctx);
  98
  99 void viaDestroyTexObj(viaContextPtr vmesa, viaTextureObjectPtr t);
 100 void viaSwapOutTexObj(viaContextPtr vmesa, viaTextureObjectPtr t);
 101 void viaUploadTexImages(viaContextPtr vmesa, viaTextureObjectPtr t);
 102
 103 void viaResetGlobalLRU(viaContextPtr vmesa);
 104 void viaTexturesGone(viaContextPtr vmesa,
 105                      GLuint start, GLuint end,
 106                      GLuint in_use);
 107
 108 void viaPrintLocalLRU(viaContextPtr vmesa);
 109 void viaPrintGlobalLRU(viaContextPtr vmesa);
 110 void viaUpdateTexLRU(viaContextPtr vmesa, viaTextureObjectPtr t);
 111
 112 #endif