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 #include "intel_reg.h"
  30
  31 #include "ilo_blitter.h"
  32 #include "ilo_context.h"
  33 #include "ilo_cp.h"
  34 #include "ilo_resource.h"
  35 #include "ilo_screen.h"
  36 #include "ilo_blit.h"
  37
  38 static void
  39 ilo_resource_copy_region(struct pipe_context *pipe,
  40                          struct pipe_resource *dst,
  41                          unsigned dst_level,
  42                          unsigned dstx, unsigned dsty, unsigned dstz,
  43                          struct pipe_resource *src,
  44                          unsigned src_level,
  45                          const struct pipe_box *src_box)
  46 {
  47    struct ilo_context *ilo = ilo_context(pipe);
  48
  49    if (ilo_blitter_blt_copy_resource(ilo->blitter,
  50             dst, dst_level, dstx, dsty, dstz,
  51             src, src_level, src_box))
  52       return;
  53
  54    util_resource_copy_region(&ilo->base, dst, dst_level,
  55          dstx, dsty, dstz, src, src_level, src_box);
  56 }
  57
  58 static void
  59 ilo_clear(struct pipe_context *pipe,
  60           unsigned buffers,
  61           const union pipe_color_union *color,
  62           double depth,
  63           unsigned stencil)
  64 {
  65    struct ilo_context *ilo = ilo_context(pipe);
  66
  67    ilo_blitter_pipe_clear_fb(ilo->blitter, buffers, color, depth, stencil);
  68 }
  69
  70 static void
  71 ilo_clear_render_target(struct pipe_context *pipe,
  72                         struct pipe_surface *dst,
  73                         const union pipe_color_union *color,
  74                         unsigned dstx, unsigned dsty,
  75                         unsigned width, unsigned height)
  76 {
  77    struct ilo_context *ilo = ilo_context(pipe);
  78
  79    if (!width || !height || dstx >= dst->width || dsty >= dst->height)
  80       return;
  81
  82    if (dstx + width > dst->width)
  83       width = dst->width - dstx;
  84    if (dsty + height > dst->height)
  85       height = dst->height - dsty;
  86
  87    if (ilo_blitter_blt_clear_rt(ilo->blitter,
  88             dst, color, dstx, dsty, width, height))
  89       return;
  90
  91    ilo_blitter_pipe_clear_rt(ilo->blitter,
  92          dst, color, dstx, dsty, width, height);
  93 }
  94
  95 static void
  96 ilo_clear_depth_stencil(struct pipe_context *pipe,
  97                         struct pipe_surface *dst,
  98                         unsigned clear_flags,
  99                         double depth,
 100                         unsigned stencil,
 101                         unsigned dstx, unsigned dsty,
 102                         unsigned width, unsigned height)
 103 {
 104    struct ilo_context *ilo = ilo_context(pipe);
 105
 106    if (!width || !height || dstx >= dst->width || dsty >= dst->height)
 107       return;
 108
 109    if (dstx + width > dst->width)
 110       width = dst->width - dstx;
 111    if (dsty + height > dst->height)
 112       height = dst->height - dsty;
 113
 114    if (ilo_blitter_blt_clear_zs(ilo->blitter,
 115             dst, clear_flags, depth, stencil, dstx, dsty, width, height))
 116       return;
 117
 118    ilo_blitter_pipe_clear_zs(ilo->blitter,
 119          dst, clear_flags, depth, stencil, dstx, dsty, width, height);
 120 }
 121
 122 static void
 123 ilo_blit(struct pipe_context *pipe, const struct pipe_blit_info *info)
 124 {
 125    struct ilo_context *ilo = ilo_context(pipe);
 126
 127    ilo_blitter_pipe_blit(ilo->blitter, info);
 128 }
 129
 130 /**
 131  * Initialize blit-related functions.
 132  */
 133 void
 134 ilo_init_blit_functions(struct ilo_context *ilo)
 135 {
 136    ilo->base.resource_copy_region = ilo_resource_copy_region;
 137    ilo->base.blit = ilo_blit;
 138
 139    ilo->base.clear = ilo_clear;
 140    ilo->base.clear_render_target = ilo_clear_render_target;
 141    ilo->base.clear_depth_stencil = ilo_clear_depth_stencil;
 142 }