diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_flush.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_flush.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_flush.c b/src/gallium/drivers/softpipe/sp_flush.c new file mode 100644 index 0000000000..4a53ef048f --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_flush.c @@ -0,0 +1,177 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "pipe/p_defines.h" +#include "draw/draw_context.h" +#include "sp_flush.h" +#include "sp_context.h" +#include "sp_state.h" +#include "sp_tile_cache.h" +#include "sp_tex_tile_cache.h" + + +void +softpipe_flush( struct pipe_context *pipe, + unsigned flags, + struct pipe_fence_handle **fence ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + uint i; + + draw_flush(softpipe->draw); + + if (flags & PIPE_FLUSH_TEXTURE_CACHE) { + for (i = 0; i < softpipe->num_sampler_views; i++) { + sp_flush_tex_tile_cache(softpipe->tex_cache[i]); + } + for (i = 0; i < softpipe->num_vertex_sampler_views; i++) { + sp_flush_tex_tile_cache(softpipe->vertex_tex_cache[i]); + } + for (i = 0; i < softpipe->num_geometry_sampler_views; i++) { + sp_flush_tex_tile_cache(softpipe->geometry_tex_cache[i]); + } + } + + if (flags & PIPE_FLUSH_SWAPBUFFERS) { + /* If this is a swapbuffers, just flush color buffers. + * + * The zbuffer changes are not discarded, but held in the cache + * in the hope that a later clear will wipe them out. + */ + for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) + if (softpipe->cbuf_cache[i]) + sp_flush_tile_cache(softpipe->cbuf_cache[i]); + + /* Need this call for hardware buffers before swapbuffers. + * + * there should probably be another/different flush-type function + * that's called before swapbuffers because we don't always want + * to unmap surfaces when flushing. + */ + softpipe_unmap_transfers(softpipe); + } + else if (flags & PIPE_FLUSH_RENDER_CACHE) { + for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) + if (softpipe->cbuf_cache[i]) + sp_flush_tile_cache(softpipe->cbuf_cache[i]); + + if (softpipe->zsbuf_cache) + sp_flush_tile_cache(softpipe->zsbuf_cache); + + softpipe->dirty_render_cache = FALSE; + } + + /* Enable to dump BMPs of the color/depth buffers each frame */ +#if 0 + if(flags & PIPE_FLUSH_FRAME) { + static unsigned frame_no = 1; + static char filename[256]; + util_snprintf(filename, sizeof(filename), "cbuf_%u.bmp", frame_no); + debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.cbufs[0]); + util_snprintf(filename, sizeof(filename), "zsbuf_%u.bmp", frame_no); + debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.zsbuf); + ++frame_no; + } +#endif + + if (fence) + *fence = NULL; +} + + +/** + * Flush context if necessary. + * + * Returns FALSE if it would have block, but do_not_block was set, TRUE + * otherwise. + * + * TODO: move this logic to an auxiliary library? + */ +boolean +softpipe_flush_resource(struct pipe_context *pipe, + struct pipe_resource *texture, + unsigned face, + unsigned level, + unsigned flush_flags, + boolean read_only, + boolean cpu_access, + boolean do_not_block) +{ + unsigned referenced; + + referenced = pipe->is_resource_referenced(pipe, texture, face, level); + + if ((referenced & PIPE_REFERENCED_FOR_WRITE) || + ((referenced & PIPE_REFERENCED_FOR_READ) && !read_only)) { + + /* + * TODO: The semantics of these flush flags are too obtuse. They should + * disappear and the pipe driver should just ensure that all visible + * side-effects happen when they need to happen. + */ + if (referenced & PIPE_REFERENCED_FOR_WRITE) + flush_flags |= PIPE_FLUSH_RENDER_CACHE; + + if (referenced & PIPE_REFERENCED_FOR_READ) + flush_flags |= PIPE_FLUSH_TEXTURE_CACHE; + + if (cpu_access) { + /* + * Flush and wait. + */ + + struct pipe_fence_handle *fence = NULL; + + if (do_not_block) + return FALSE; + + pipe->flush(pipe, flush_flags, &fence); + + if (fence) { + /* + * This is for illustrative purposes only, as softpipe does not + * have fences. + */ + pipe->screen->fence_finish(pipe->screen, fence, 0); + pipe->screen->fence_reference(pipe->screen, &fence, NULL); + } + } else { + /* + * Just flush. + */ + + pipe->flush(pipe, flush_flags, NULL); + } + } + + return TRUE; +} |