1 /************************************************************************** 2 * 3 * Copyright 2007 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 SP_TEXTURE_H 29 #define SP_TEXTURE_H 30 31 32 #include "pipe/p_state.h" 33 #include "sp_limits.h" 34 35 36 struct pipe_context; 37 struct pipe_screen; 38 struct softpipe_context; 39 40 41 /** 42 * Subclass of pipe_resource. 43 */ 44 struct softpipe_resource 45 { 46 struct pipe_resource base; 47 48 unsigned long level_offset[SP_MAX_TEXTURE_2D_LEVELS]; 49 unsigned stride[SP_MAX_TEXTURE_2D_LEVELS]; 50 unsigned img_stride[SP_MAX_TEXTURE_2D_LEVELS]; 51 52 /** 53 * Display target, only valid for PIPE_TEXTURE_2D with the 54 * PIPE_BIND_DISPLAY_TARGET usage. 55 */ 56 struct sw_displaytarget *dt; 57 58 /** 59 * Malloc'ed data for regular buffers and textures, or a mapping to dt above. 60 */ 61 void *data; 62 63 /* True if texture images are power-of-two in all dimensions: 64 */ 65 boolean pot; 66 boolean userBuffer; 67 68 unsigned timestamp; 69 }; 70 71 72 /** 73 * Subclass of pipe_transfer. 74 */ 75 struct softpipe_transfer 76 { 77 struct pipe_transfer base; 78 79 unsigned long offset; 80 }; 81 82 83 /** cast wrappers */ 84 static inline struct softpipe_resource * 85 softpipe_resource(struct pipe_resource *pt) 86 { 87 return (struct softpipe_resource *) pt; 88 } 89 90 static inline struct softpipe_transfer * 91 softpipe_transfer(struct pipe_transfer *pt) 92 { 93 return (struct softpipe_transfer *) pt; 94 } 95 96 97 /** 98 * Return pointer to a resource's actual data. 99 * This is a short-cut instead of using map()/unmap(), which should 100 * probably be fixed. 101 */ 102 static inline void * 103 softpipe_resource_data(struct pipe_resource *pt) 104 { 105 if (!pt) 106 return NULL; 107 108 assert(softpipe_resource(pt)->dt == NULL); 109 return softpipe_resource(pt)->data; 110 } 111 112 113 extern void 114 softpipe_init_screen_texture_funcs(struct pipe_screen *screen); 115 116 extern void 117 softpipe_init_texture_funcs(struct pipe_context *pipe); 118 119 unsigned 120 softpipe_get_tex_image_offset(const struct softpipe_resource *spr, 121 unsigned level, unsigned layer); 122 #endif /* SP_TEXTURE */ 123