lp_state_rasterizer.c revision e3a34cc7f6c9f959cdc2af4486e84587fab4d0d7
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#include "pipe/p_defines.h" 29#include "util/u_memory.h" 30#include "lp_context.h" 31#include "lp_state.h" 32#include "lp_setup.h" 33#include "draw/draw_context.h" 34 35 36 37void * 38llvmpipe_create_rasterizer_state(struct pipe_context *pipe, 39 const struct pipe_rasterizer_state *rast) 40{ 41 /* We do nothing special with rasterizer state. 42 * The CSO handle is just a pointer to a pipe_rasterizer_state object. 43 */ 44 return mem_dup(rast, sizeof(*rast)); 45} 46 47 48 49void 50llvmpipe_bind_rasterizer_state(struct pipe_context *pipe, void *handle) 51{ 52 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); 53 const struct pipe_rasterizer_state *rasterizer = 54 (const struct pipe_rasterizer_state *) handle; 55 56 if (llvmpipe->rasterizer == rasterizer) 57 return; 58 59 /* pass-through to draw module */ 60 draw_set_rasterizer_state(llvmpipe->draw, rasterizer, handle); 61 62 llvmpipe->rasterizer = rasterizer; 63 64 /* Note: we can immediately set the triangle state here and 65 * not worry about binning because we handle culling during 66 * triangle setup, not when rasterizing the bins. 67 */ 68 if (llvmpipe->rasterizer) { 69 lp_setup_set_triangle_state( llvmpipe->setup, 70 llvmpipe->rasterizer->cull_mode, 71 llvmpipe->rasterizer->front_winding == PIPE_WINDING_CCW, 72 llvmpipe->rasterizer->scissor); 73 } 74 75 llvmpipe->dirty |= LP_NEW_RASTERIZER; 76} 77 78 79void llvmpipe_delete_rasterizer_state(struct pipe_context *pipe, 80 void *rasterizer) 81{ 82 FREE( rasterizer ); 83} 84 85 86