1/************************************************************************** 2 * 3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28#ifndef _INTEL_TEX_OBJ_H 29#define _INTEL_TEX_OBJ_H 30 31#include "swrast/s_context.h" 32 33 34struct intel_texture_object 35{ 36 struct gl_texture_object base; 37 38 /* This is a mirror of base._MaxLevel, updated at validate time, 39 * except that we don't bother with the non-base levels for 40 * non-mipmapped textures. 41 */ 42 unsigned int _MaxLevel; 43 44 /* Offset for firstLevel image: 45 */ 46 GLuint textureOffset; 47 48 /* On validation any active images held in main memory or in other 49 * regions will be copied to this region and the old storage freed. 50 */ 51 struct intel_mipmap_tree *mt; 52}; 53 54 55/** 56 * intel_texture_image is a subclass of swrast_texture_image because we 57 * sometimes fall back to using the swrast module for software rendering. 58 */ 59struct intel_texture_image 60{ 61 struct swrast_texture_image base; 62 63 /* If intelImage->mt != NULL, image data is stored here. 64 * Else if intelImage->base.Buffer != NULL, image is stored there. 65 * Else there is no image data. 66 */ 67 struct intel_mipmap_tree *mt; 68}; 69 70static INLINE struct intel_texture_object * 71intel_texture_object(struct gl_texture_object *obj) 72{ 73 return (struct intel_texture_object *) obj; 74} 75 76static INLINE struct intel_texture_image * 77intel_texture_image(struct gl_texture_image *img) 78{ 79 return (struct intel_texture_image *) img; 80} 81 82#endif /* _INTEL_TEX_OBJ_H */ 83