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| 5564 | serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2003 VMware, Inc. |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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| 21 | * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
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| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | #ifndef _INTEL_TEX_OBJ_H |
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| 29 | #define _INTEL_TEX_OBJ_H |
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| 30 | |||
| 31 | #include "swrast/s_context.h" |
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| 32 | |||
| 33 | |||
| 34 | struct intel_texture_object |
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| 35 | { |
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| 36 | struct gl_texture_object base; |
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| 37 | |||
| 38 | /* This is a mirror of base._MaxLevel, updated at validate time, |
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| 39 | * except that we don't bother with the non-base levels for |
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| 40 | * non-mipmapped textures. |
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| 41 | */ |
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| 42 | unsigned int _MaxLevel; |
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| 43 | |||
| 44 | unsigned int validated_first_level; |
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| 45 | unsigned int validated_last_level; |
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| 46 | |||
| 47 | /* The miptree of pixel data for the texture (if !needs_validate). After |
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| 48 | * validation, the images will also have references to the same mt. |
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| 49 | */ |
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| 50 | struct intel_mipmap_tree *mt; |
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| 51 | |||
| 52 | /** |
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| 53 | * Set when mipmap trees in the texture images of this texture object |
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| 54 | * might not all be the mipmap tree above. |
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| 55 | */ |
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| 56 | bool needs_validate; |
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| 57 | |||
| 58 | /* Mesa format for the validated texture object. For non-views this |
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| 59 | * will always be the same as mt->format. For views, it may differ |
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| 60 | * since the mt is shared across views with differing formats. |
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| 61 | */ |
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| 62 | mesa_format _Format; |
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| 63 | }; |
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| 64 | |||
| 65 | |||
| 66 | /** |
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| 67 | * intel_texture_image is a subclass of swrast_texture_image because we |
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| 68 | * sometimes fall back to using the swrast module for software rendering. |
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| 69 | */ |
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| 70 | struct intel_texture_image |
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| 71 | { |
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| 72 | struct swrast_texture_image base; |
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| 73 | |||
| 74 | /* If intelImage->mt != NULL, image data is stored here. |
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| 75 | * Else if intelImage->base.Buffer != NULL, image is stored there. |
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| 76 | * Else there is no image data. |
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| 77 | */ |
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| 78 | struct intel_mipmap_tree *mt; |
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| 79 | }; |
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| 80 | |||
| 81 | static inline struct intel_texture_object * |
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| 82 | intel_texture_object(struct gl_texture_object *obj) |
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| 83 | { |
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| 84 | return (struct intel_texture_object *) obj; |
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| 85 | } |
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| 86 | |||
| 87 | static inline struct intel_texture_image * |
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| 88 | intel_texture_image(struct gl_texture_image *img) |
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| 89 | { |
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| 90 | return (struct intel_texture_image *) img; |
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| 91 | } |
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| 92 | |||
| 93 | #endif /* _INTEL_TEX_OBJ_H */ |