sp_clear.c revision eb168e26aa63f11a47d70c4555cae30691a2cd57
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * Copyright 2009 VMware, Inc. All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sub license, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial portions 17 * of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 **************************************************************************/ 28 29/* Author: 30 * Brian Paul 31 * Michel Dänzer 32 */ 33 34 35#include "pipe/p_defines.h" 36#include "util/u_pack_color.h" 37#include "sp_clear.h" 38#include "sp_context.h" 39#include "sp_surface.h" 40#include "sp_state.h" 41#include "sp_tile_cache.h" 42 43 44/** 45 * Clear the given buffers to the specified values. 46 * No masking, no scissor (clear entire buffer). 47 */ 48void 49softpipe_clear(struct pipe_context *pipe, unsigned buffers, const float *rgba, 50 double depth, unsigned stencil) 51{ 52 struct softpipe_context *softpipe = softpipe_context(pipe); 53 unsigned cv; 54 uint i; 55 56 if (softpipe->no_rast) 57 return; 58 59#if 0 60 softpipe_update_derived(softpipe); /* not needed?? */ 61#endif 62 63 if (buffers & PIPE_CLEAR_COLOR) { 64 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) { 65 struct pipe_surface *ps = softpipe->framebuffer.cbufs[i]; 66 67 util_pack_color(rgba, ps->format, &cv); 68 sp_tile_cache_clear(softpipe->cbuf_cache[i], cv); 69 70#if !TILE_CLEAR_OPTIMIZATION 71 /* non-cached surface */ 72 pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, cv); 73#endif 74 } 75 } 76 77 if (buffers & PIPE_CLEAR_DEPTHSTENCIL) { 78 struct pipe_surface *ps = softpipe->framebuffer.zsbuf; 79 80 cv = util_pack_z_stencil(ps->format, depth, stencil); 81 sp_tile_cache_clear(softpipe->zsbuf_cache, cv); 82 83#if !TILE_CLEAR_OPTIMIZATION 84 /* non-cached surface */ 85 pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, cv); 86#endif 87 } 88} 89