1b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca/************************************************************************** 2b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 3b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * All Rights Reserved. 5b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 6b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Permission is hereby granted, free of charge, to any person obtaining a 7b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * copy of this software and associated documentation files (the 8b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * "Software"), to deal in the Software without restriction, including 9b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * without limitation the rights to use, copy, modify, merge, publish, 10b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * distribute, sub license, and/or sell copies of the Software, and to 11b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * permit persons to whom the Software is furnished to do so, subject to 12b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * the following conditions: 13b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 14b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * The above copyright notice and this permission notice (including the 15b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * next paragraph) shall be included in all copies or substantial portions 16b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * of the Software. 17b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 18b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 26b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca **************************************************************************/ 27b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 28b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca/** 29b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * \file 30b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Generic code for buffers. 31b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 32b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Behind a pipe buffle handle there can be DMA buffers, client (or user) 33b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * buffers, regular malloced buffers, etc. This file provides an abstract base 34b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * buffer handle that allows the driver to cope with all those kinds of buffers 35b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * in a more flexible way. 36b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 37b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * There is no obligation of a winsys driver to use this library. And a pipe 38b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * driver should be completly agnostic about it. 39b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 40e06474dbae6979177629fb6187331291ff230c65José Fonseca * \author Jose Fonseca <jrfonseca@tungstengraphics.com> 41b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 42b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 43b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca#ifndef PB_BUFFER_H_ 44b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca#define PB_BUFFER_H_ 45b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 46b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 471d6c98651f73b2f110d26c906c6626d5b750d38bJosé Fonseca#include "pipe/p_compiler.h" 48ea4bf267e4b023b08043f91ac44592fed1736e7fJosé Fonseca#include "util/u_debug.h" 4928486880ca3ec39419ccee0cb1a3bedc9ef7117cJosé Fonseca#include "util/u_inlines.h" 503a49497f102f2b64a8755d3cf65b7c0386e95aacJosé Fonseca#include "pipe/p_defines.h" 51e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonseca 52b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 53d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca#ifdef __cplusplus 54d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonsecaextern "C" { 55d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca#endif 56d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca 57d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca 581e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellstruct pb_vtbl; 59e06474dbae6979177629fb6187331291ff230c65José Fonsecastruct pb_validate; 60287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwellstruct pipe_fence_handle; 61e06474dbae6979177629fb6187331291ff230c65José Fonseca 62b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 63287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_CPU_READ (1 << 0) 64287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_CPU_WRITE (1 << 1) 65287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_GPU_READ (1 << 2) 66287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_GPU_WRITE (1 << 3) 67287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_UNSYNCHRONIZED (1 << 10) 68287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_DONTBLOCK (1 << 9) 69287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell 70287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_CPU_READ_WRITE \ 71287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell ( PB_USAGE_CPU_READ | PB_USAGE_CPU_WRITE ) 72287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_GPU_READ_WRITE \ 73287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell ( PB_USAGE_GPU_READ | PB_USAGE_GPU_WRITE ) 74287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell#define PB_USAGE_WRITE \ 75287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell ( PB_USAGE_CPU_WRITE | PB_USAGE_GPU_WRITE ) 76287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell 77b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca/** 7865df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca * Buffer description. 7965df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca * 8065df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca * Used when allocating the buffer. 8165df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca */ 8265df0241465b2dae4979d71cad17b83cfd1fda11José Fonsecastruct pb_desc 8365df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca{ 8465df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca unsigned alignment; 8565df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca unsigned usage; 8665df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca}; 8765df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca 8865df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca 8965df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca/** 902af0173e9e4eefe910c6011038e7346091a9b2a4José Fonseca * Size. Regular (32bit) unsigned for now. 912af0173e9e4eefe910c6011038e7346091a9b2a4José Fonseca */ 922af0173e9e4eefe910c6011038e7346091a9b2a4José Fonsecatypedef unsigned pb_size; 932af0173e9e4eefe910c6011038e7346091a9b2a4José Fonseca 942af0173e9e4eefe910c6011038e7346091a9b2a4José Fonseca 952af0173e9e4eefe910c6011038e7346091a9b2a4José Fonseca/** 961e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell * Base class for all pb_* buffers. 97b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 981e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellstruct pb_buffer 99b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 1004682e706012fe26627a2f827db01b5068cc62814Marek Olšák struct pipe_reference reference; 1014682e706012fe26627a2f827db01b5068cc62814Marek Olšák unsigned size; 1024682e706012fe26627a2f827db01b5068cc62814Marek Olšák unsigned alignment; 1034682e706012fe26627a2f827db01b5068cc62814Marek Olšák unsigned usage; 1041e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell 105b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca /** 106b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Pointer to the virtual function table. 107b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 108b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Avoid accessing this table directly. Use the inline functions below 109b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * instead to avoid mistakes. 110b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 1111e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell const struct pb_vtbl *vtbl; 112b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca}; 113b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 114e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonseca 115b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca/** 116b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Virtual function table for the buffer storage operations. 117b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 118b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Note that creation is not done through this table. 119b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 1201e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellstruct pb_vtbl 121b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 1221e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell void (*destroy)( struct pb_buffer *buf ); 123b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 124b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca /** 125b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Map the entire data store of a buffer object into the client's address. 126287c94ea4987033f9c99a2f91c5750c9083504caKeith Whitwell * flags is bitmask of PB_USAGE_CPU_READ/WRITE. 127b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 1281e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell void *(*map)( struct pb_buffer *buf, 129b5fcf0c8e07e666523b007fab1d0fc18c2c89241Dave Airlie unsigned flags, void *flush_ctx ); 130b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 1311e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell void (*unmap)( struct pb_buffer *buf ); 132b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 133e06474dbae6979177629fb6187331291ff230c65José Fonseca enum pipe_error (*validate)( struct pb_buffer *buf, 134e06474dbae6979177629fb6187331291ff230c65José Fonseca struct pb_validate *vl, 135e06474dbae6979177629fb6187331291ff230c65José Fonseca unsigned flags ); 136e06474dbae6979177629fb6187331291ff230c65José Fonseca 137e06474dbae6979177629fb6187331291ff230c65José Fonseca void (*fence)( struct pb_buffer *buf, 138e06474dbae6979177629fb6187331291ff230c65José Fonseca struct pipe_fence_handle *fence ); 139e06474dbae6979177629fb6187331291ff230c65José Fonseca 140b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca /** 141b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Get the base buffer and the offset. 142b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 143b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * A buffer can be subdivided in smaller buffers. This method should return 144b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * the underlaying buffer, and the relative offset. 145b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 146b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Buffers without an underlaying base buffer should return themselves, with 147b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * a zero offset. 148b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * 149b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Note that this will increase the reference count of the base buffer. 150b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 1511e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell void (*get_base_buffer)( struct pb_buffer *buf, 1521e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell struct pb_buffer **base_buf, 1532af0173e9e4eefe910c6011038e7346091a9b2a4José Fonseca pb_size *offset ); 154e06474dbae6979177629fb6187331291ff230c65José Fonseca 155b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca}; 156b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 157b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 158e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonseca 1591e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell/* Accessor functions for pb->vtbl: 1601e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell */ 1616c3d12e374939d36a23af7c9c502de18ce02f423Michal Krolstatic INLINE void * 1621e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellpb_map(struct pb_buffer *buf, 163b5fcf0c8e07e666523b007fab1d0fc18c2c89241Dave Airlie unsigned flags, void *flush_ctx) 164b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 165b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca assert(buf); 166781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca if(!buf) 167781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca return NULL; 1684682e706012fe26627a2f827db01b5068cc62814Marek Olšák assert(pipe_is_referenced(&buf->reference)); 169b5fcf0c8e07e666523b007fab1d0fc18c2c89241Dave Airlie return buf->vtbl->map(buf, flags, flush_ctx); 170b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 171b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 172b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 1736c3d12e374939d36a23af7c9c502de18ce02f423Michal Krolstatic INLINE void 1741e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellpb_unmap(struct pb_buffer *buf) 175b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 176b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca assert(buf); 177781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca if(!buf) 178781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca return; 1794682e706012fe26627a2f827db01b5068cc62814Marek Olšák assert(pipe_is_referenced(&buf->reference)); 180b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca buf->vtbl->unmap(buf); 181b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 182b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 183b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 1846c3d12e374939d36a23af7c9c502de18ce02f423Michal Krolstatic INLINE void 1851e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellpb_get_base_buffer( struct pb_buffer *buf, 1861e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell struct pb_buffer **base_buf, 1872af0173e9e4eefe910c6011038e7346091a9b2a4José Fonseca pb_size *offset ) 188b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca{ 189781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca assert(buf); 190781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca if(!buf) { 191781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca base_buf = NULL; 192781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca offset = 0; 193781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca return; 194781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca } 1954682e706012fe26627a2f827db01b5068cc62814Marek Olšák assert(pipe_is_referenced(&buf->reference)); 196e06474dbae6979177629fb6187331291ff230c65José Fonseca assert(buf->vtbl->get_base_buffer); 197b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca buf->vtbl->get_base_buffer(buf, base_buf, offset); 1981be4d4d4c6af61bda9e682e3fd347228d2589f8aJosé Fonseca assert(*base_buf); 1994682e706012fe26627a2f827db01b5068cc62814Marek Olšák assert(*offset < (*base_buf)->size); 200b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca} 201b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 202e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonseca 203e06474dbae6979177629fb6187331291ff230c65José Fonsecastatic INLINE enum pipe_error 204e06474dbae6979177629fb6187331291ff230c65José Fonsecapb_validate(struct pb_buffer *buf, struct pb_validate *vl, unsigned flags) 205e06474dbae6979177629fb6187331291ff230c65José Fonseca{ 206e06474dbae6979177629fb6187331291ff230c65José Fonseca assert(buf); 207e06474dbae6979177629fb6187331291ff230c65José Fonseca if(!buf) 208e06474dbae6979177629fb6187331291ff230c65José Fonseca return PIPE_ERROR; 209e06474dbae6979177629fb6187331291ff230c65José Fonseca assert(buf->vtbl->validate); 210e06474dbae6979177629fb6187331291ff230c65José Fonseca return buf->vtbl->validate(buf, vl, flags); 211e06474dbae6979177629fb6187331291ff230c65José Fonseca} 212e06474dbae6979177629fb6187331291ff230c65José Fonseca 213e06474dbae6979177629fb6187331291ff230c65José Fonseca 214e06474dbae6979177629fb6187331291ff230c65José Fonsecastatic INLINE void 215e06474dbae6979177629fb6187331291ff230c65José Fonsecapb_fence(struct pb_buffer *buf, struct pipe_fence_handle *fence) 216e06474dbae6979177629fb6187331291ff230c65José Fonseca{ 217e06474dbae6979177629fb6187331291ff230c65José Fonseca assert(buf); 218e06474dbae6979177629fb6187331291ff230c65José Fonseca if(!buf) 219e06474dbae6979177629fb6187331291ff230c65José Fonseca return; 220e06474dbae6979177629fb6187331291ff230c65José Fonseca assert(buf->vtbl->fence); 221e06474dbae6979177629fb6187331291ff230c65José Fonseca buf->vtbl->fence(buf, fence); 222e06474dbae6979177629fb6187331291ff230c65José Fonseca} 223e06474dbae6979177629fb6187331291ff230c65José Fonseca 224e06474dbae6979177629fb6187331291ff230c65José Fonseca 2256c3d12e374939d36a23af7c9c502de18ce02f423Michal Krolstatic INLINE void 2261e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellpb_destroy(struct pb_buffer *buf) 2271e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell{ 2281e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell assert(buf); 229781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca if(!buf) 230781676c7cc5ae7586ee8edd07de880892c5a2d86José Fonseca return; 2314682e706012fe26627a2f827db01b5068cc62814Marek Olšák assert(!pipe_is_referenced(&buf->reference)); 2321e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell buf->vtbl->destroy(buf); 2331e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell} 2341e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell 235e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonsecastatic INLINE void 236e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonsecapb_reference(struct pb_buffer **dst, 237e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonseca struct pb_buffer *src) 238e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonseca{ 2395e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer struct pb_buffer *old = *dst; 240b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 2414682e706012fe26627a2f827db01b5068cc62814Marek Olšák if (pipe_reference(&(*dst)->reference, &src->reference)) 2425e27cd46c04a9e7b5904cc014bffd0f4daae31feMichel Dänzer pb_destroy( old ); 24335a15f02634a31c1517363d91aaef8f190e24687Roland Scheidegger *dst = src; 244e6c8278c04518b8b8b0960a9e21b48b6816fcc20José Fonseca} 245b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 246b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca 247b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca/** 248ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca * Utility function to check whether the provided alignment is consistent with 249ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca * the requested or not. 25095aeeb6d746e57473116ef4d72c05330902f68a5José Fonseca */ 251ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonsecastatic INLINE boolean 2522af0173e9e4eefe910c6011038e7346091a9b2a4José Fonsecapb_check_alignment(pb_size requested, pb_size provided) 25395aeeb6d746e57473116ef4d72c05330902f68a5José Fonseca{ 2547996b3e034f92eeceed3f3e7c01eb1f829d98b18José Fonseca if(!requested) 2557996b3e034f92eeceed3f3e7c01eb1f829d98b18José Fonseca return TRUE; 2567996b3e034f92eeceed3f3e7c01eb1f829d98b18José Fonseca if(requested > provided) 2577996b3e034f92eeceed3f3e7c01eb1f829d98b18José Fonseca return FALSE; 2587996b3e034f92eeceed3f3e7c01eb1f829d98b18José Fonseca if(provided % requested != 0) 2597996b3e034f92eeceed3f3e7c01eb1f829d98b18José Fonseca return FALSE; 2607996b3e034f92eeceed3f3e7c01eb1f829d98b18José Fonseca return TRUE; 261ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca} 262ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca 263ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca 264ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca/** 265ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca * Utility function to check whether the provided alignment is consistent with 266ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca * the requested or not. 267ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca */ 268ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonsecastatic INLINE boolean 269ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonsecapb_check_usage(unsigned requested, unsigned provided) 270ea4ca10b1bec67c8a60db0e4e5581318ce9f62f9José Fonseca{ 27193ff702b4f1c6016e249c4d326e71cdc4932f57cBrian Paul return (requested & provided) == requested ? TRUE : FALSE; 27295aeeb6d746e57473116ef4d72c05330902f68a5José Fonseca} 27395aeeb6d746e57473116ef4d72c05330902f68a5José Fonseca 27495aeeb6d746e57473116ef4d72c05330902f68a5José Fonseca 27595aeeb6d746e57473116ef4d72c05330902f68a5José Fonseca/** 276b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * Malloc-based buffer to store data that can't be used by the graphics 277b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca * hardware. 278b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca */ 2791e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwellstruct pb_buffer * 2802af0173e9e4eefe910c6011038e7346091a9b2a4José Fonsecapb_malloc_buffer_create(pb_size size, 28165df0241465b2dae4979d71cad17b83cfd1fda11José Fonseca const struct pb_desc *desc); 2821e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell 2831e0d30a515e4cac891b6c590f12a33e0e8a8e295Keith Whitwell 284d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca#ifdef __cplusplus 285d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca} 286d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca#endif 287d6229d7f1fda03d3c73998505b0facf6e3d5b882José Fonseca 288b47836225185c8d2e2ccf3e191230304709d0a57José Fonseca#endif /*PB_BUFFER_H_*/ 289