sp_flush.c revision 843f206a342751084cbd55d9fb0fdf78fd310e99
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 & PIPE_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 (flags & PIPE_FLUSH_SWAPBUFFERS) { 66 /* If this is a swapbuffers, just flush color buffers. 67 * 68 * The zbuffer changes are not discarded, but held in the cache 69 * in the hope that a later clear will wipe them out. 70 */ 71 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) 72 if (softpipe->cbuf_cache[i]) 73 sp_flush_tile_cache(softpipe->cbuf_cache[i]); 74 75 /* Need this call for hardware buffers before swapbuffers. 76 * 77 * there should probably be another/different flush-type function 78 * that's called before swapbuffers because we don't always want 79 * to unmap surfaces when flushing. 80 */ 81 softpipe_unmap_transfers(softpipe); 82 } 83 else if (flags & PIPE_FLUSH_RENDER_CACHE) { 84 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) 85 if (softpipe->cbuf_cache[i]) 86 sp_flush_tile_cache(softpipe->cbuf_cache[i]); 87 88 if (softpipe->zsbuf_cache) 89 sp_flush_tile_cache(softpipe->zsbuf_cache); 90 91 softpipe->dirty_render_cache = FALSE; 92 } 93 94 /* Enable to dump BMPs of the color/depth buffers each frame */ 95#if 0 96 if(flags & PIPE_FLUSH_FRAME) { 97 static unsigned frame_no = 1; 98 static char filename[256]; 99 util_snprintf(filename, sizeof(filename), "cbuf_%u.bmp", frame_no); 100 debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.cbufs[0]); 101 util_snprintf(filename, sizeof(filename), "zsbuf_%u.bmp", frame_no); 102 debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.zsbuf); 103 ++frame_no; 104 } 105#endif 106 107 if (fence) 108 *fence = NULL; 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 = pipe->is_resource_referenced(pipe, texture, level, layer); 133 134 if ((referenced & PIPE_REFERENCED_FOR_WRITE) || 135 ((referenced & PIPE_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 & PIPE_REFERENCED_FOR_WRITE) 143 flush_flags |= PIPE_FLUSH_RENDER_CACHE; 144 145 if (referenced & PIPE_REFERENCED_FOR_READ) 146 flush_flags |= PIPE_FLUSH_TEXTURE_CACHE; 147 148 if (cpu_access) { 149 /* 150 * Flush and wait. 151 */ 152 153 struct pipe_fence_handle *fence = NULL; 154 155 if (do_not_block) 156 return FALSE; 157 158 pipe->flush(pipe, flush_flags, &fence); 159 160 if (fence) { 161 /* 162 * This is for illustrative purposes only, as softpipe does not 163 * have fences. 164 */ 165 pipe->screen->fence_finish(pipe->screen, fence, 0); 166 pipe->screen->fence_reference(pipe->screen, &fence, NULL); 167 } 168 } else { 169 /* 170 * Just flush. 171 */ 172 173 pipe->flush(pipe, flush_flags, NULL); 174 } 175 } 176 177 return TRUE; 178} 179