src/gallium/drivers/ilo/ilo_blit.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #include "util/u_surface.h"
  29
  30 #include "ilo_blitter.h"
  31 #include "ilo_context.h"
  32 #include "ilo_blit.h"
  33
  34 static void
  35 ilo_resource_copy_region(struct pipe_context *pipe,
  36                          struct pipe_resource *dst,
  37                          unsigned dst_level,
  38                          unsigned dstx, unsigned dsty, unsigned dstz,
  39                          struct pipe_resource *src,
  40                          unsigned src_level,
  41                          const struct pipe_box *src_box)
  42 {
  43    struct ilo_context *ilo = ilo_context(pipe);
  44
  45    if (ilo_blitter_blt_copy_resource(ilo->blitter,
  46             dst, dst_level, dstx, dsty, dstz,
  47             src, src_level, src_box))
  48       return;
  49
  50    if (ilo_blitter_pipe_copy_resource(ilo->blitter,
  51             dst, dst_level, dstx, dsty, dstz,
  52             src, src_level, src_box))
  53       return;
  54
  55    util_resource_copy_region(&ilo->base, dst, dst_level,
  56          dstx, dsty, dstz, src, src_level, src_box);
  57 }
  58
  59 static void
  60 ilo_clear(struct pipe_context *pipe,
  61           unsigned buffers,
  62           const union pipe_color_union *color,
  63           double depth,
  64           unsigned stencil)
  65 {
  66    struct ilo_context *ilo = ilo_context(pipe);
  67
  68    ilo_blitter_pipe_clear_fb(ilo->blitter, buffers, color, depth, stencil);
  69 }
  70
  71 static void
  72 ilo_clear_render_target(struct pipe_context *pipe,
  73                         struct pipe_surface *dst,
  74                         const union pipe_color_union *color,
  75                         unsigned dstx, unsigned dsty,
  76                         unsigned width, unsigned height)
  77 {
  78    struct ilo_context *ilo = ilo_context(pipe);
  79
  80    if (!width || !height || dstx >= dst->width || dsty >= dst->height)
  81       return;
  82
  83    if (dstx + width > dst->width)
  84       width = dst->width - dstx;
  85    if (dsty + height > dst->height)
  86       height = dst->height - dsty;
  87
  88    if (ilo_blitter_blt_clear_rt(ilo->blitter,
  89             dst, color, dstx, dsty, width, height))
  90       return;
  91
  92    ilo_blitter_pipe_clear_rt(ilo->blitter,
  93          dst, color, dstx, dsty, width, height);
  94 }
  95
  96 static void
  97 ilo_clear_depth_stencil(struct pipe_context *pipe,
  98                         struct pipe_surface *dst,
  99                         unsigned clear_flags,
 100                         double depth,
 101                         unsigned stencil,
 102                         unsigned dstx, unsigned dsty,
 103                         unsigned width, unsigned height)
 104 {
 105    struct ilo_context *ilo = ilo_context(pipe);
 106
 107    if (!width || !height || dstx >= dst->width || dsty >= dst->height)
 108       return;
 109
 110    if (dstx + width > dst->width)
 111       width = dst->width - dstx;
 112    if (dsty + height > dst->height)
 113       height = dst->height - dsty;
 114
 115    if (ilo_blitter_blt_clear_zs(ilo->blitter,
 116             dst, clear_flags, depth, stencil, dstx, dsty, width, height))
 117       return;
 118
 119    ilo_blitter_pipe_clear_zs(ilo->blitter,
 120          dst, clear_flags, depth, stencil, dstx, dsty, width, height);
 121 }
 122
 123 static void
 124 ilo_blit(struct pipe_context *pipe, const struct pipe_blit_info *info)
 125 {
 126    struct ilo_context *ilo = ilo_context(pipe);
 127
 128    ilo_blitter_pipe_blit(ilo->blitter, info);
 129 }
 130
 131 /**
 132  * Initialize blit-related functions.
 133  */
 134 void
 135 ilo_init_blit_functions(struct ilo_context *ilo)
 136 {
 137    ilo->base.resource_copy_region = ilo_resource_copy_region;
 138    ilo->base.blit = ilo_blit;
 139
 140    ilo->base.clear = ilo_clear;
 141    ilo->base.clear_render_target = ilo_clear_render_target;
 142    ilo->base.clear_depth_stencil = ilo_clear_depth_stencil;
 143 }