sp_flush.c revision 7e02303497237cde958c28608477d0c355a8038b
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 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 TUNGSTEN GRAPHICS 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/* Author: 29 * Keith Whitwell <keith@tungstengraphics.com> 30 */ 31 32 33#include "pipe/p_defines.h" 34#include "pipe/p_screen.h" 35#include "draw/draw_context.h" 36#include "sp_flush.h" 37#include "sp_context.h" 38#include "sp_state.h" 39#include "sp_tile_cache.h" 40#include "sp_tex_tile_cache.h" 41 42 43void 44softpipe_flush( struct pipe_context *pipe, 45 unsigned flags, 46 struct pipe_fence_handle **fence ) 47{ 48 struct softpipe_context *softpipe = softpipe_context(pipe); 49 uint i; 50 51 draw_flush(softpipe->draw); 52 53 if (flags & SP_FLUSH_TEXTURE_CACHE) { 54 for (i = 0; i < softpipe->num_fragment_sampler_views; i++) { 55 sp_flush_tex_tile_cache(softpipe->fragment_tex_cache[i]); 56 } 57 for (i = 0; i < softpipe->num_vertex_sampler_views; i++) { 58 sp_flush_tex_tile_cache(softpipe->vertex_tex_cache[i]); 59 } 60 for (i = 0; i < softpipe->num_geometry_sampler_views; i++) { 61 sp_flush_tex_tile_cache(softpipe->geometry_tex_cache[i]); 62 } 63 } 64 65 /* If this is a swapbuffers, just flush color buffers. 66 * 67 * The zbuffer changes are not discarded, but held in the cache 68 * in the hope that a later clear will wipe them out. 69 */ 70 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) 71 if (softpipe->cbuf_cache[i]) 72 sp_flush_tile_cache(softpipe->cbuf_cache[i]); 73 74 if (softpipe->zsbuf_cache) 75 sp_flush_tile_cache(softpipe->zsbuf_cache); 76 77 softpipe->dirty_render_cache = FALSE; 78 79 /* Need this call for hardware buffers before swapbuffers. 80 * 81 * there should probably be another/different flush-type function 82 * that's called before swapbuffers because we don't always want 83 * to unmap surfaces when flushing. 84 */ 85 softpipe_unmap_transfers(softpipe); 86 87 /* Enable to dump BMPs of the color/depth buffers each frame */ 88#if 0 89 if(flags & PIPE_FLUSH_FRAME) { 90 static unsigned frame_no = 1; 91 static char filename[256]; 92 util_snprintf(filename, sizeof(filename), "cbuf_%u.bmp", frame_no); 93 debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.cbufs[0]); 94 util_snprintf(filename, sizeof(filename), "zsbuf_%u.bmp", frame_no); 95 debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.zsbuf); 96 ++frame_no; 97 } 98#endif 99 100 if (fence) 101 *fence = NULL; 102} 103 104void 105softpipe_flush_wrapped( struct pipe_context *pipe, 106 struct pipe_fence_handle **fence ) 107{ 108 softpipe_flush(pipe, SP_FLUSH_TEXTURE_CACHE, fence); 109} 110 111 112/** 113 * Flush context if necessary. 114 * 115 * Returns FALSE if it would have block, but do_not_block was set, TRUE 116 * otherwise. 117 * 118 * TODO: move this logic to an auxiliary library? 119 */ 120boolean 121softpipe_flush_resource(struct pipe_context *pipe, 122 struct pipe_resource *texture, 123 unsigned level, 124 int layer, 125 unsigned flush_flags, 126 boolean read_only, 127 boolean cpu_access, 128 boolean do_not_block) 129{ 130 unsigned referenced; 131 132 referenced = softpipe_is_resource_referenced(pipe, texture, level, layer); 133 134 if ((referenced & SP_REFERENCED_FOR_WRITE) || 135 ((referenced & SP_REFERENCED_FOR_READ) && !read_only)) { 136 137 /* 138 * TODO: The semantics of these flush flags are too obtuse. They should 139 * disappear and the pipe driver should just ensure that all visible 140 * side-effects happen when they need to happen. 141 */ 142 if (referenced & SP_REFERENCED_FOR_READ) 143 flush_flags |= SP_FLUSH_TEXTURE_CACHE; 144 145 if (cpu_access) { 146 /* 147 * Flush and wait. 148 */ 149 150 struct pipe_fence_handle *fence = NULL; 151 152 if (do_not_block) 153 return FALSE; 154 155 softpipe_flush(pipe, flush_flags, &fence); 156 157 if (fence) { 158 /* 159 * This is for illustrative purposes only, as softpipe does not 160 * have fences. 161 */ 162 pipe->screen->fence_finish(pipe->screen, fence, 163 PIPE_TIMEOUT_INFINITE); 164 pipe->screen->fence_reference(pipe->screen, &fence, NULL); 165 } 166 } else { 167 /* 168 * Just flush. 169 */ 170 171 softpipe_flush(pipe, flush_flags, NULL); 172 } 173 } 174 175 return TRUE; 176} 177