/**************************************************************************
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*
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* Copyright 2009 VMware, Inc.
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* Copyright 2007 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @author Jose Fonseca <jfonseca@vmware.com>
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* @author Keith Whitwell <keithw@vmware.com>
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*/
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#include "util/u_memory.h"
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#include "util/u_math.h"
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#include "util/u_dump.h"
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#include "draw/draw_context.h"
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#include "lp_screen.h"
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#include "lp_context.h"
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#include "lp_state.h"
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#include "lp_debug.h"
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static void *
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llvmpipe_create_blend_state(struct pipe_context *pipe,
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const struct pipe_blend_state *blend)
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{
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struct pipe_blend_state *state = mem_dup(blend, sizeof *blend);
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int i;
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if (LP_PERF & PERF_NO_BLEND) {
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state->independent_blend_enable = 0;
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for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
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state->rt[i].blend_enable = 0;
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}
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return state;
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}
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static void
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llvmpipe_bind_blend_state(struct pipe_context *pipe, void *blend)
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{
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struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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if (llvmpipe->blend == blend)
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return;
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draw_flush(llvmpipe->draw);
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llvmpipe->blend = blend;
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llvmpipe->dirty |= LP_NEW_BLEND;
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}
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static void
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llvmpipe_delete_blend_state(struct pipe_context *pipe, void *blend)
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{
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FREE( blend );
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}
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static void
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llvmpipe_set_blend_color(struct pipe_context *pipe,
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const struct pipe_blend_color *blend_color)
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{
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struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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if (!blend_color)
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return;
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if(memcmp(&llvmpipe->blend_color, blend_color, sizeof *blend_color) == 0)
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return;
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draw_flush(llvmpipe->draw);
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memcpy(&llvmpipe->blend_color, blend_color, sizeof *blend_color);
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llvmpipe->dirty |= LP_NEW_BLEND_COLOR;
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}
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/** XXX move someday? Or consolidate all these simple state setters
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* into one file.
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*/
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static void *
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llvmpipe_create_depth_stencil_state(struct pipe_context *pipe,
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const struct pipe_depth_stencil_alpha_state *depth_stencil)
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{
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struct pipe_depth_stencil_alpha_state *state;
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state = mem_dup(depth_stencil, sizeof *depth_stencil);
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if (LP_PERF & PERF_NO_DEPTH) {
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state->depth.enabled = 0;
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state->depth.writemask = 0;
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state->stencil[0].enabled = 0;
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state->stencil[1].enabled = 0;
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}
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if (LP_PERF & PERF_NO_ALPHATEST) {
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state->alpha.enabled = 0;
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}
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return state;
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}
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static void
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llvmpipe_bind_depth_stencil_state(struct pipe_context *pipe,
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void *depth_stencil)
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{
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struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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if (llvmpipe->depth_stencil == depth_stencil)
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return;
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draw_flush(llvmpipe->draw);
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llvmpipe->depth_stencil = depth_stencil;
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llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA;
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}
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static void
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llvmpipe_delete_depth_stencil_state(struct pipe_context *pipe, void *depth)
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{
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FREE( depth );
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}
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static void
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llvmpipe_set_stencil_ref(struct pipe_context *pipe,
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const struct pipe_stencil_ref *stencil_ref)
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{
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struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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if (!stencil_ref)
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return;
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if(memcmp(&llvmpipe->stencil_ref, stencil_ref, sizeof *stencil_ref) == 0)
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return;
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draw_flush(llvmpipe->draw);
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memcpy(&llvmpipe->stencil_ref, stencil_ref, sizeof *stencil_ref);
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/* not sure. want new flag? */
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llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA;
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}
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static void
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llvmpipe_set_sample_mask(struct pipe_context *pipe,
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unsigned sample_mask)
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{
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struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
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if (sample_mask != llvmpipe->sample_mask) {
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llvmpipe->sample_mask = sample_mask;
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llvmpipe->dirty |= LP_NEW_RASTERIZER;
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}
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}
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void
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llvmpipe_init_blend_funcs(struct llvmpipe_context *llvmpipe)
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{
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llvmpipe->pipe.create_blend_state = llvmpipe_create_blend_state;
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llvmpipe->pipe.bind_blend_state = llvmpipe_bind_blend_state;
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llvmpipe->pipe.delete_blend_state = llvmpipe_delete_blend_state;
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llvmpipe->pipe.create_depth_stencil_alpha_state = llvmpipe_create_depth_stencil_state;
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llvmpipe->pipe.bind_depth_stencil_alpha_state = llvmpipe_bind_depth_stencil_state;
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llvmpipe->pipe.delete_depth_stencil_alpha_state = llvmpipe_delete_depth_stencil_state;
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llvmpipe->pipe.set_blend_color = llvmpipe_set_blend_color;
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llvmpipe->pipe.set_stencil_ref = llvmpipe_set_stencil_ref;
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llvmpipe->pipe.set_sample_mask = llvmpipe_set_sample_mask;
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llvmpipe->sample_mask = ~0;
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}
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