| /************************************************************************** |
| * |
| * Copyright 2009 VMware, Inc. |
| * 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 Jose Fonseca <jfonseca@vmware.com> |
| * @author Keith Whitwell <keith@tungstengraphics.com> |
| */ |
| |
| #include "util/u_memory.h" |
| #include "util/u_math.h" |
| #include "util/u_dump.h" |
| #include "draw/draw_context.h" |
| #include "lp_screen.h" |
| #include "lp_context.h" |
| #include "lp_state.h" |
| #include "lp_debug.h" |
| |
| |
| static void * |
| llvmpipe_create_blend_state(struct pipe_context *pipe, |
| const struct pipe_blend_state *blend) |
| { |
| struct pipe_blend_state *state = mem_dup(blend, sizeof *blend); |
| int i; |
| |
| if (LP_PERF & PERF_NO_BLEND) { |
| state->independent_blend_enable = 0; |
| for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) |
| state->rt[i].blend_enable = 0; |
| } |
| |
| return state; |
| } |
| |
| |
| static void |
| llvmpipe_bind_blend_state(struct pipe_context *pipe, void *blend) |
| { |
| struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); |
| |
| if (llvmpipe->blend == blend) |
| return; |
| |
| draw_flush(llvmpipe->draw); |
| |
| llvmpipe->blend = blend; |
| |
| llvmpipe->dirty |= LP_NEW_BLEND; |
| } |
| |
| |
| static void |
| llvmpipe_delete_blend_state(struct pipe_context *pipe, void *blend) |
| { |
| FREE( blend ); |
| } |
| |
| |
| static void |
| llvmpipe_set_blend_color(struct pipe_context *pipe, |
| const struct pipe_blend_color *blend_color) |
| { |
| struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); |
| |
| if(!blend_color) |
| return; |
| |
| if(memcmp(&llvmpipe->blend_color, blend_color, sizeof *blend_color) == 0) |
| return; |
| |
| draw_flush(llvmpipe->draw); |
| |
| memcpy(&llvmpipe->blend_color, blend_color, sizeof *blend_color); |
| |
| llvmpipe->dirty |= LP_NEW_BLEND_COLOR; |
| } |
| |
| |
| /** XXX move someday? Or consolidate all these simple state setters |
| * into one file. |
| */ |
| |
| |
| static void * |
| llvmpipe_create_depth_stencil_state(struct pipe_context *pipe, |
| const struct pipe_depth_stencil_alpha_state *depth_stencil) |
| { |
| struct pipe_depth_stencil_alpha_state *state; |
| |
| state = mem_dup(depth_stencil, sizeof *depth_stencil); |
| |
| if (LP_PERF & PERF_NO_DEPTH) { |
| state->depth.enabled = 0; |
| state->depth.writemask = 0; |
| state->stencil[0].enabled = 0; |
| state->stencil[1].enabled = 0; |
| } |
| |
| if (LP_PERF & PERF_NO_ALPHATEST) { |
| state->alpha.enabled = 0; |
| } |
| |
| return state; |
| } |
| |
| |
| static void |
| llvmpipe_bind_depth_stencil_state(struct pipe_context *pipe, |
| void *depth_stencil) |
| { |
| struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); |
| |
| if (llvmpipe->depth_stencil == depth_stencil) |
| return; |
| |
| draw_flush(llvmpipe->draw); |
| |
| llvmpipe->depth_stencil = depth_stencil; |
| |
| llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA; |
| } |
| |
| |
| static void |
| llvmpipe_delete_depth_stencil_state(struct pipe_context *pipe, void *depth) |
| { |
| FREE( depth ); |
| } |
| |
| |
| static void |
| llvmpipe_set_stencil_ref(struct pipe_context *pipe, |
| const struct pipe_stencil_ref *stencil_ref) |
| { |
| struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); |
| |
| if(!stencil_ref) |
| return; |
| |
| if(memcmp(&llvmpipe->stencil_ref, stencil_ref, sizeof *stencil_ref) == 0) |
| return; |
| |
| draw_flush(llvmpipe->draw); |
| |
| memcpy(&llvmpipe->stencil_ref, stencil_ref, sizeof *stencil_ref); |
| |
| /* not sure. want new flag? */ |
| llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA; |
| } |
| |
| static void |
| llvmpipe_set_sample_mask(struct pipe_context *pipe, |
| unsigned sample_mask) |
| { |
| } |
| |
| void |
| llvmpipe_init_blend_funcs(struct llvmpipe_context *llvmpipe) |
| { |
| llvmpipe->pipe.create_blend_state = llvmpipe_create_blend_state; |
| llvmpipe->pipe.bind_blend_state = llvmpipe_bind_blend_state; |
| llvmpipe->pipe.delete_blend_state = llvmpipe_delete_blend_state; |
| |
| llvmpipe->pipe.create_depth_stencil_alpha_state = llvmpipe_create_depth_stencil_state; |
| llvmpipe->pipe.bind_depth_stencil_alpha_state = llvmpipe_bind_depth_stencil_state; |
| llvmpipe->pipe.delete_depth_stencil_alpha_state = llvmpipe_delete_depth_stencil_state; |
| |
| llvmpipe->pipe.set_blend_color = llvmpipe_set_blend_color; |
| |
| llvmpipe->pipe.set_stencil_ref = llvmpipe_set_stencil_ref; |
| llvmpipe->pipe.set_sample_mask = llvmpipe_set_sample_mask; |
| } |