1 /********************************************************** 2 * Copyright 2008-2009 VMware, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, copy, 8 * modify, merge, publish, distribute, sublicense, and/or sell copies 9 * of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 * 24 **********************************************************/ 25 26 #ifndef SVGA_TEXTURE_H 27 #define SVGA_TEXTURE_H 28 29 30 #include "pipe/p_compiler.h" 31 #include "pipe/p_state.h" 32 #include "util/u_inlines.h" 33 #include "util/u_transfer.h" 34 #include "svga_screen_cache.h" 35 36 struct pipe_context; 37 struct pipe_screen; 38 struct svga_context; 39 struct svga_winsys_surface; 40 enum SVGA3dSurfaceFormat; 41 42 43 #define SVGA_MAX_TEXTURE_LEVELS 16 44 45 46 extern struct u_resource_vtbl svga_texture_vtbl; 47 48 49 struct svga_texture 50 { 51 struct u_resource b; 52 53 boolean defined[6][SVGA_MAX_TEXTURE_LEVELS]; 54 55 struct svga_sampler_view *cached_view; 56 57 unsigned view_age[SVGA_MAX_TEXTURE_LEVELS]; 58 unsigned age; 59 60 boolean views_modified; 61 62 /** 63 * Creation key for the host surface handle. 64 * 65 * This structure describes all the host surface characteristics so that it 66 * can be looked up in cache, since creating a host surface is often a slow 67 * operation. 68 */ 69 struct svga_host_surface_cache_key key; 70 71 /** 72 * Handle for the host side surface. 73 * 74 * This handle is owned by this texture. Views should hold on to a reference 75 * to this texture and never destroy this handle directly. 76 */ 77 struct svga_winsys_surface *handle; 78 }; 79 80 81 82 /* Note this is only used for texture (not buffer) transfers: 83 */ 84 struct svga_transfer 85 { 86 struct pipe_transfer base; 87 88 unsigned face; 89 90 struct svga_winsys_buffer *hwbuf; 91 92 /* Height of the hardware buffer in pixel blocks */ 93 unsigned hw_nblocksy; 94 95 /* Temporary malloc buffer when we can't allocate a hardware buffer 96 * big enough */ 97 void *swbuf; 98 }; 99 100 101 static INLINE struct svga_texture *svga_texture( struct pipe_resource *resource ) 102 { 103 struct svga_texture *tex = (struct svga_texture *)resource; 104 assert(tex == NULL || tex->b.vtbl == &svga_texture_vtbl); 105 return tex; 106 } 107 108 109 static INLINE struct svga_transfer * 110 svga_transfer(struct pipe_transfer *transfer) 111 { 112 assert(transfer); 113 return (struct svga_transfer *)transfer; 114 } 115 116 117 118 struct pipe_resource * 119 svga_texture_create(struct pipe_screen *screen, 120 const struct pipe_resource *template); 121 122 struct pipe_resource * 123 svga_texture_from_handle(struct pipe_screen * screen, 124 const struct pipe_resource *template, 125 struct winsys_handle *whandle); 126 127 128 129 130 #endif /* SVGA_TEXTURE_H */ 131