2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
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:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
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
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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.
32 #include "via_context.h"
33 #include "via_3d_reg.h"
35 #define VIA_TEX_MAXLEVELS 10
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
46 * Non-local texture objects have a valid MemBlock to describe the
47 * region managed by the other client, and can be identified by
50 struct via_texture_object_t
{
51 struct via_texture_object_t
*next
, *prev
;
54 struct gl_texture_object
*globj
;
64 unsigned char* bufAddr
;
67 GLuint needClearCache
;
74 const struct gl_texture_image
*image
;
75 int offset
; /* into bufAddr */
78 } image
[VIA_TEX_MAXLEVELS
];
83 GLuint regTexWidthLog2
[2];
84 GLuint regTexHeightLog2
[2];
85 GLuint regTexBaseH
[4];
89 } regTexBaseAndPitch
[12];
91 GLint firstLevel
, lastLevel
; /* upload tObj->Image[first .. lastLevel] */
94 viaTextureObjectPtr
viaAllocTextureObject(struct gl_texture_object
*texObj
);
95 void viaUpdateTextureState(GLcontext
*ctx
);
96 void viaInitTextureFuncs(struct dd_function_table
* functions
);
97 void viaInitTextures(GLcontext
*ctx
);
99 void viaDestroyTexObj(viaContextPtr vmesa
, viaTextureObjectPtr t
);
100 void viaSwapOutTexObj(viaContextPtr vmesa
, viaTextureObjectPtr t
);
101 void viaUploadTexImages(viaContextPtr vmesa
, viaTextureObjectPtr t
);
103 void viaResetGlobalLRU(viaContextPtr vmesa
);
104 void viaTexturesGone(viaContextPtr vmesa
,
105 GLuint start
, GLuint end
,
108 void viaPrintLocalLRU(viaContextPtr vmesa
);
109 void viaPrintGlobalLRU(viaContextPtr vmesa
);
110 void viaUpdateTexLRU(viaContextPtr vmesa
, viaTextureObjectPtr t
);