1 /************************************************************************** 2 * 3 * Copyright 2003 VMware, Inc. 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 VMWARE 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 34 struct 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 /* On validation any active images held in main memory or in other 45 * regions will be copied to this region and the old storage freed. 46 */ 47 struct intel_mipmap_tree *mt; 48 49 /** 50 * Set when mipmap trees in the texture images of this texture object 51 * might not all be the mipmap tree above. 52 */ 53 bool needs_validate; 54 }; 55 56 57 /** 58 * intel_texture_image is a subclass of swrast_texture_image because we 59 * sometimes fall back to using the swrast module for software rendering. 60 */ 61 struct intel_texture_image 62 { 63 struct swrast_texture_image base; 64 65 /* If intelImage->mt != NULL, image data is stored here. 66 * Else if intelImage->base.Buffer != NULL, image is stored there. 67 * Else there is no image data. 68 */ 69 struct intel_mipmap_tree *mt; 70 }; 71 72 static inline struct intel_texture_object * 73 intel_texture_object(struct gl_texture_object *obj) 74 { 75 return (struct intel_texture_object *) obj; 76 } 77 78 static inline struct intel_texture_image * 79 intel_texture_image(struct gl_texture_image *img) 80 { 81 return (struct intel_texture_image *) img; 82 } 83 84 #endif /* _INTEL_TEX_OBJ_H */ 85