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                        bool scissor_enable)
  45 {
  46    struct blitter_context *b = blitter->pipe_blitter;
  47    struct ilo_state_vector *vec = &blitter->ilo->state_vector;
  48
  49    /* vertex states */
  50    util_blitter_save_vertex_buffer_slot(b, vec->vb.states);
  51    util_blitter_save_vertex_elements(b, (void *) vec->ve);
  52    util_blitter_save_vertex_shader(b, vec->vs);
  53    util_blitter_save_geometry_shader(b, vec->gs);
  54    util_blitter_save_so_targets(b, vec->so.count, vec->so.states);
  55    util_blitter_save_rasterizer(b, (void *) vec->rasterizer);
  56
  57    /* fragment states */
  58    util_blitter_save_fragment_shader(b, vec->fs);
  59    util_blitter_save_depth_stencil_alpha(b, (void *) vec->dsa);
  60    util_blitter_save_blend(b, (void *) vec->blend);
  61    util_blitter_save_sample_mask(b, vec->sample_mask);
  62    util_blitter_save_stencil_ref(b, &vec->stencil_ref);
  63    util_blitter_save_viewport(b, &vec->viewport.viewport0);
  64
  65    if (scissor_enable)
  66       util_blitter_save_scissor(b, &vec->viewport.scissor0);
  67
  68    switch (op) {
  69    case ILO_BLITTER_PIPE_BLIT:
  70    case ILO_BLITTER_PIPE_COPY:
  71       /*
  72        * We are about to call util_blitter_blit() or
  73        * util_blitter_copy_texture().  Note that util_blitter uses at most two
  74        * textures.
  75        */
  76       util_blitter_save_fragment_sampler_states(b,
  77             2, (void **) vec->sampler[PIPE_SHADER_FRAGMENT].cso);
  78
  79       util_blitter_save_fragment_sampler_views(b,
  80             vec->view[PIPE_SHADER_FRAGMENT].count,
  81             vec->view[PIPE_SHADER_FRAGMENT].states);
  82
  83       util_blitter_save_framebuffer(b, &vec->fb.state);
  84
  85       /* resource_copy_region() or blit() does not honor render condition */
  86       util_blitter_save_render_condition(b,
  87             blitter->ilo->render_condition.query,
  88             blitter->ilo->render_condition.condition,
  89             blitter->ilo->render_condition.mode);
  90       break;
  91    case ILO_BLITTER_PIPE_CLEAR:
  92       /*
  93        * we are about to call util_blitter_clear_render_target() or
  94        * util_blitter_clear_depth_stencil()
  95        */
  96       util_blitter_save_framebuffer(b, &vec->fb.state);
  97       break;
  98    case ILO_BLITTER_PIPE_CLEAR_FB:
  99       /* we are about to call util_blitter_clear() */
 100       break;
 101    default:
 102       break;
 103    }
 104 }
 105
 106 static void
 107 ilo_blitter_pipe_end(struct ilo_blitter *blitter)
 108 {
 109 }
 110
 111 bool
 112 ilo_blitter_pipe_blit(struct ilo_blitter *blitter,
 113                       const struct pipe_blit_info *info)
 114 {
 115    struct blitter_context *b = blitter->pipe_blitter;
 116    struct pipe_blit_info skip_stencil;
 117
 118    if (util_try_blit_via_copy_region(&blitter->ilo->base, info))
 119       return true;
 120
 121    if (!util_blitter_is_blit_supported(b, info)) {
 122       /* try without stencil */
 123       if (info->mask & PIPE_MASK_S) {
 124          skip_stencil = *info;
 125          skip_stencil.mask = info->mask & ~PIPE_MASK_S;
 126
 127          if (util_blitter_is_blit_supported(blitter->pipe_blitter,
 128                                             &skip_stencil)) {
 129             ilo_warn("ignore stencil buffer blitting\n");
 130             info = &skip_stencil;
 131          }
 132       }
 133
 134       if (info != &skip_stencil) {
 135          ilo_warn("failed to blit with pipe blitter\n");
 136          return false;
 137       }
 138    }
 139
 140    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_BLIT,
 141          info->scissor_enable);
 142    util_blitter_blit(b, info);
 143    ilo_blitter_pipe_end(blitter);
 144
 145    return true;
 146 }
 147
 148 bool
 149 ilo_blitter_pipe_copy_resource(struct ilo_blitter *blitter,
 150                                struct pipe_resource *dst, unsigned dst_level,
 151                                unsigned dst_x, unsigned dst_y, unsigned dst_z,
 152                                struct pipe_resource *src, unsigned src_level,
 153                                const struct pipe_box *src_box)
 154 {
 155    /* not until we allow rendertargets to be buffers */
 156    if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
 157       return false;
 158
 159    if (!util_blitter_is_copy_supported(blitter->pipe_blitter, dst, src))
 160       return false;
 161
 162    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_COPY, false);
 163
 164    util_blitter_copy_texture(blitter->pipe_blitter,
 165          dst, dst_level, dst_x, dst_y, dst_z,
 166          src, src_level, src_box);
 167
 168    ilo_blitter_pipe_end(blitter);
 169
 170    return true;
 171 }
 172
 173 bool
 174 ilo_blitter_pipe_clear_rt(struct ilo_blitter *blitter,
 175                           struct pipe_surface *rt,
 176                           const union pipe_color_union *color,
 177                           unsigned x, unsigned y,
 178                           unsigned width, unsigned height)
 179 {
 180    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_CLEAR, false);
 181
 182    util_blitter_clear_render_target(blitter->pipe_blitter,
 183          rt, color, x, y, width, height);
 184
 185    ilo_blitter_pipe_end(blitter);
 186
 187    return true;
 188 }
 189
 190 bool
 191 ilo_blitter_pipe_clear_zs(struct ilo_blitter *blitter,
 192                           struct pipe_surface *zs,
 193                           unsigned clear_flags,
 194                           double depth, unsigned stencil,
 195                           unsigned x, unsigned y,
 196                           unsigned width, unsigned height)
 197 {
 198    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_CLEAR, false);
 199
 200    util_blitter_clear_depth_stencil(blitter->pipe_blitter,
 201          zs, clear_flags, depth, stencil, x, y, width, height);
 202
 203    ilo_blitter_pipe_end(blitter);
 204
 205    return true;
 206 }
 207
 208 bool
 209 ilo_blitter_pipe_clear_fb(struct ilo_blitter *blitter,
 210                           unsigned buffers,
 211                           const union pipe_color_union *color,
 212                           double depth, unsigned stencil)
 213 {
 214    struct ilo_state_vector *vec = &blitter->ilo->state_vector;
 215
 216    /* TODO we should pause/resume some queries */
 217    ilo_blitter_pipe_begin(blitter, ILO_BLITTER_PIPE_CLEAR_FB, false);
 218
 219    util_blitter_clear(blitter->pipe_blitter,
 220          vec->fb.state.width, vec->fb.state.height, 1,
 221          buffers, color, depth, stencil);
 222
 223    ilo_blitter_pipe_end(blitter);
 224
 225    return true;
 226 }