src/gallium/drivers/softpipe/sp_state_blend.c

   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 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  29  */
  30
  31 #include "util/u_memory.h"
  32 #include "draw/draw_context.h"
  33 #include "sp_context.h"
  34 #include "sp_state.h"
  35
  36
  37 static void *
  38 softpipe_create_blend_state(struct pipe_context *pipe,
  39                             const struct pipe_blend_state *blend)
  40 {
  41    return mem_dup(blend, sizeof(*blend));
  42 }
  43
  44
  45 static void
  46 softpipe_bind_blend_state(struct pipe_context *pipe,
  47                           void *blend)
  48 {
  49    struct softpipe_context *softpipe = softpipe_context(pipe);
  50
  51    draw_flush(softpipe->draw);
  52
  53    softpipe->blend = (struct pipe_blend_state *)blend;
  54
  55    softpipe->dirty |= SP_NEW_BLEND;
  56 }
  57
  58
  59 static void
  60 softpipe_delete_blend_state(struct pipe_context *pipe,
  61                             void *blend)
  62 {
  63    FREE( blend );
  64 }
  65
  66
  67 static void
  68 softpipe_set_blend_color(struct pipe_context *pipe,
  69                          const struct pipe_blend_color *blend_color)
  70 {
  71    struct softpipe_context *softpipe = softpipe_context(pipe);
  72
  73    draw_flush(softpipe->draw);
  74
  75    softpipe->blend_color = *blend_color;
  76
  77    softpipe->dirty |= SP_NEW_BLEND;
  78 }
  79
  80
  81 static void *
  82 softpipe_create_depth_stencil_state(struct pipe_context *pipe,
  83                                     const struct pipe_depth_stencil_alpha_state *depth_stencil)
  84 {
  85    return mem_dup(depth_stencil, sizeof(*depth_stencil));
  86 }
  87
  88
  89 static void
  90 softpipe_bind_depth_stencil_state(struct pipe_context *pipe,
  91                                   void *depth_stencil)
  92 {
  93    struct softpipe_context *softpipe = softpipe_context(pipe);
  94
  95    softpipe->depth_stencil = (struct pipe_depth_stencil_alpha_state *)depth_stencil;
  96
  97    softpipe->dirty |= SP_NEW_DEPTH_STENCIL_ALPHA;
  98 }
  99
 100
 101 static void
 102 softpipe_delete_depth_stencil_state(struct pipe_context *pipe, void *depth)
 103 {
 104    FREE( depth );
 105 }
 106
 107
 108 static void
 109 softpipe_set_stencil_ref(struct pipe_context *pipe,
 110                          const struct pipe_stencil_ref *stencil_ref)
 111 {
 112    struct softpipe_context *softpipe = softpipe_context(pipe);
 113
 114    softpipe->stencil_ref = *stencil_ref;
 115
 116    softpipe->dirty |= SP_NEW_DEPTH_STENCIL_ALPHA;
 117 }
 118
 119
 120 static void
 121 softpipe_set_sample_mask(struct pipe_context *pipe,
 122                          unsigned sample_mask)
 123 {
 124 }
 125
 126
 127 void
 128 softpipe_init_blend_funcs(struct pipe_context *pipe)
 129 {
 130    pipe->create_blend_state = softpipe_create_blend_state;
 131    pipe->bind_blend_state   = softpipe_bind_blend_state;
 132    pipe->delete_blend_state = softpipe_delete_blend_state;
 133
 134    pipe->set_blend_color = softpipe_set_blend_color;
 135
 136    pipe->create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
 137    pipe->bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
 138    pipe->delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
 139
 140    pipe->set_stencil_ref = softpipe_set_stencil_ref;
 141
 142    pipe->set_sample_mask = softpipe_set_sample_mask;
 143 }