diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_state_rasterizer.c')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_rasterizer.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_rasterizer.c b/src/gallium/drivers/llvmpipe/lp_state_rasterizer.c new file mode 100644 index 0000000000..afd3e0b21c --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_state_rasterizer.c @@ -0,0 +1,97 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "lp_context.h" +#include "lp_state.h" +#include "lp_setup.h" +#include "draw/draw_context.h" + + + +static void * +llvmpipe_create_rasterizer_state(struct pipe_context *pipe, + const struct pipe_rasterizer_state *rast) +{ + /* We do nothing special with rasterizer state. + * The CSO handle is just a pointer to a pipe_rasterizer_state object. + */ + return mem_dup(rast, sizeof(*rast)); +} + + + +static void +llvmpipe_bind_rasterizer_state(struct pipe_context *pipe, void *handle) +{ + struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); + const struct pipe_rasterizer_state *rasterizer = + (const struct pipe_rasterizer_state *) handle; + + if (llvmpipe->rasterizer == rasterizer) + return; + + /* pass-through to draw module */ + draw_set_rasterizer_state(llvmpipe->draw, rasterizer, handle); + + llvmpipe->rasterizer = rasterizer; + + /* Note: we can immediately set the triangle state here and + * not worry about binning because we handle culling during + * triangle setup, not when rasterizing the bins. + */ + if (llvmpipe->rasterizer) { + lp_setup_set_triangle_state( llvmpipe->setup, + llvmpipe->rasterizer->cull_face, + llvmpipe->rasterizer->front_ccw, + llvmpipe->rasterizer->scissor, + llvmpipe->rasterizer->gl_rasterization_rules); + lp_setup_set_flatshade_first( llvmpipe->setup, + llvmpipe->rasterizer->flatshade_first); + } + + llvmpipe->dirty |= LP_NEW_RASTERIZER; +} + + +static void +llvmpipe_delete_rasterizer_state(struct pipe_context *pipe, + void *rasterizer) +{ + FREE( rasterizer ); +} + + + +void +llvmpipe_init_rasterizer_funcs(struct llvmpipe_context *llvmpipe) +{ + llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state; + llvmpipe->pipe.bind_rasterizer_state = llvmpipe_bind_rasterizer_state; + llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state; +} |