src/gallium/drivers/ilo/ilo_blitter_pipe.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 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_blitter.h"
  29 #include "util/u_surface.h"
  30
  31 #include "ilo_context.h"
  32 #include "ilo_blitter.h"
  33
  34 enum ilo_blitter_pipe_op {
  35    ILO_BLITTER_PIPE_BLIT,
  36    ILO_BLITTER_PIPE_COPY,
  37    ILO_BLITTER_PIPE_CLEAR,
  38    ILO_BLITTER_PIPE_CLEAR_FB,
  39 };
  40
  41 static void
  42 ilo_blitter_pipe_begin(struct ilo_blitter *blitter,
  43                        enum ilo_blitter_pipe_op op)
  44 {
  45    struct blitter_context *b = blitter->pipe_blitter;
  46    struct ilo_context *ilo = blitter->ilo;
  47
  48    /* as documented in util/u_blitter.h */
  49    util_blitter_save_vertex_buffer_slot(b, ilo->vb.states);
  50    util_blitter_save_vertex_elements(b, (void *) ilo->ve);
  51    util_blitter_save_vertex_shader(b, ilo->vs);
  52    util_blitter_save_geometry_shader(b, ilo->gs);
  53    util_blitter_save_so_targets(b, ilo->so.count, ilo->so.states);
  54
  55    util_blitter_save_fragment_shader(b, ilo->fs);
  56    util_blitter_save_depth_stencil_alpha(b, (void *) ilo->dsa);
  57    util_blitter_save_blend(b, (void *) ilo->blend);
  58
  59    /* undocumented? */
  60    util_blitter_save_viewport(b, &ilo->viewport.viewport0);
  61    util_blitter_save_stencil_ref(b, &ilo->stencil_ref);
  62    util_blitter_save_sample_mask(b, ilo->sample_mask);
  63
  64    switch (op) {
  65    case ILO_BLITTER_PIPE_BLIT:
  66    case ILO_BLITTER_PIPE_COPY:
  67       util_blitter_save_rasterizer(b, (void *) ilo->rasterizer);
  68       util_blitter_save_framebuffer(b, &ilo->fb.state);
  69
  70       util_blitter_save_fragment_sampler_states(b,
  71             ilo->sampler[PIPE_SHADER_FRAGMENT].count,
  72             (void **) ilo->sampler[PIPE_SHADER_FRAGMENT].cso);
  73
  74       util_blitter_save_fragment_sampler_views(b,
  75             ilo->view[PIPE_SHADER_FRAGMENT].count,
  76             ilo->view[PIPE_SHADER_FRAGMENT].states);
  77
  78       /* disable render condition? */
  79       break;
  80    case ILO_BLITTER_PIPE_CLEAR:
  81       util_blitter_save_rasterizer(b, (void *) ilo->rasterizer);
  82       util_blitter_save_framebuffer(b, &ilo->fb.state);
  83
  84       /* disable render condition? */
  85       break;
  86    case ILO_BLITTER_PIPE_CLEAR_FB:
  87       util_blitter_save_rasterizer(b, (void *) ilo->rasterizer);
  88       break;
  89    default:
  90       break;
  91    }
  92 }
  93
  94 static void
  95 ilo_blitter_pipe_end(struct ilo_blitter *blitter)
  96 {
  97 }
  98
  99 bool
 100 ilo_blitter_pipe_blit(struct ilo_blitter *blitter,
 101                       const struct pipe_blit_info *info)
 102 {
 103    struct blitter_context *b = blitter->pipe_blitter;
 104    struct pipe_blit_info skip_stencil;
 105
 106    if (util_try_blit_via_copy_region(&blitter->ilo->base, info))
 107       return true;
 108
 109    if (!util_blitter_is_blit_supported(b, info)) {
 110       /* try without stencil */
 111       if (info->mask & PIPE_MASK_S) {
 112          skip_stencil = *info;
 113          skip_stencil.mask = info->mask & ~PIPE_MASK_S;
 114
 115          if (util_blitter_is_blit_supported(blitter->pipe_blitter,
 116                                             &skip_stencil)) {
 117             ilo_warn("ignore stencil buffer blitting\n");
 118             info = &skip_stencil;
 119          }
 120       }
 121
 122       if (info != &skip_stencil) {
 123          ilo_warn("failed to blit with pipe blitter\n");
 124          return false;
 125       }
 126    }
 127
 128    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_BLIT);
 129    util_blitter_blit(b, info);
 130    ilo_blitter_pipe_end(blitter);
 131
 132    return true;
 133 }
 134
 135 bool
 136 ilo_blitter_pipe_copy_resource(struct ilo_blitter *blitter,
 137                                struct pipe_resource *dst, unsigned dst_level,
 138                                unsigned dst_x, unsigned dst_y, unsigned dst_z,
 139                                struct pipe_resource *src, unsigned src_level,
 140                                const struct pipe_box *src_box)
 141 {
 142    return false;
 143 }
 144
 145 bool
 146 ilo_blitter_pipe_clear_rt(struct ilo_blitter *blitter,
 147                           struct pipe_surface *rt,
 148                           const union pipe_color_union *color,
 149                           unsigned x, unsigned y,
 150                           unsigned width, unsigned height)
 151 {
 152    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_CLEAR);
 153
 154    util_blitter_clear_render_target(blitter->pipe_blitter,
 155          rt, color, x, y, width, height);
 156
 157    ilo_blitter_pipe_end(blitter);
 158
 159    return true;
 160 }
 161
 162 bool
 163 ilo_blitter_pipe_clear_zs(struct ilo_blitter *blitter,
 164                           struct pipe_surface *zs,
 165                           unsigned clear_flags,
 166                           double depth, unsigned stencil,
 167                           unsigned x, unsigned y,
 168                           unsigned width, unsigned height)
 169 {
 170    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_CLEAR);
 171
 172    util_blitter_clear_depth_stencil(blitter->pipe_blitter,
 173          zs, clear_flags, depth, stencil, x, y, width, height);
 174
 175    ilo_blitter_pipe_end(blitter);
 176
 177    return true;
 178 }
 179
 180 bool
 181 ilo_blitter_pipe_clear_fb(struct ilo_blitter *blitter,
 182                           unsigned buffers,
 183                           const union pipe_color_union *color,
 184                           double depth, unsigned stencil)
 185 {
 186    /* TODO we should pause/resume some queries */
 187    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_CLEAR_FB);
 188
 189    util_blitter_clear(blitter->pipe_blitter,
 190          blitter->ilo->fb.state.width, blitter->ilo->fb.state.height,
 191          buffers, color, depth, stencil);
 192
 193    ilo_blitter_pipe_end(blitter);
 194
 195    return true;
 196 }