src/gallium/drivers/svga/svga_pipe_blit.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "svga_context.h"
  27 #include "svga_debug.h"
  28 #include "svga_cmd.h"
  29 #include "svga_format.h"
  30 #include "svga_resource_buffer.h"
  31 #include "svga_resource_texture.h"
  32 #include "svga_surface.h"
  33
  34 //#include "util/u_blit_sw.h"
  35 #include "util/u_format.h"
  36 #include "util/u_surface.h"
  37
  38 #define FILE_DEBUG_FLAG DEBUG_BLIT
  39
  40
  41 /**
  42  * Copy an image between textures with the vgpu10 CopyRegion command.
  43  */
  44 static void
  45 copy_region_vgpu10(struct svga_context *svga, struct pipe_resource *src_tex,
  46                     unsigned src_x, unsigned src_y, unsigned src_z,
  47                     unsigned src_level, unsigned src_face,
  48                     struct pipe_resource *dst_tex,
  49                     unsigned dst_x, unsigned dst_y, unsigned dst_z,
  50                     unsigned dst_level, unsigned dst_face,
  51                     unsigned width, unsigned height, unsigned depth)
  52 {
  53    enum pipe_error ret;
  54    uint32 srcSubResource, dstSubResource;
  55    struct svga_texture *dtex, *stex;
  56    SVGA3dCopyBox box;
  57
  58    stex = svga_texture(src_tex);
  59    dtex = svga_texture(dst_tex);
  60
  61    box.x = dst_x;
  62    box.y = dst_y;
  63    box.z = dst_z;
  64    box.w = width;
  65    box.h = height;
  66    box.d = depth;
  67    box.srcx = src_x;
  68    box.srcy = src_y;
  69    box.srcz = src_z;
  70
  71    srcSubResource = src_face * (src_tex->last_level + 1) + src_level;
  72    dstSubResource = dst_face * (dst_tex->last_level + 1) + dst_level;
  73
  74    ret = SVGA3D_vgpu10_PredCopyRegion(svga->swc,
  75                                       dtex->handle, dstSubResource,
  76                                       stex->handle, srcSubResource, &box);
  77    if (ret != PIPE_OK) {
  78       svga_context_flush(svga, NULL);
  79       ret = SVGA3D_vgpu10_PredCopyRegion(svga->swc,
  80                                          dtex->handle, dstSubResource,
  81                                          stex->handle, srcSubResource, &box);
  82       assert(ret == PIPE_OK);
  83    }
  84
  85    /* Mark the texture subresource as defined. */
  86    svga_define_texture_level(dtex, dst_face, dst_level);
  87
  88    /* Mark the texture subresource as rendered-to. */
  89    svga_set_texture_rendered_to(dtex, dst_face, dst_level);
  90 }
  91
  92
  93 /**
  94  * For some texture types, we need to move the z (slice) coordinate
  95  * to the layer value.  For example, to select the z=3 slice of a 2D ARRAY
  96  * texture, we need to use layer=3 and set z=0.
  97  */
  98 static void
  99 adjust_z_layer(enum pipe_texture_target target,
 100                int z_in, unsigned *layer_out, unsigned *z_out)
 101 {
 102    if (target == PIPE_TEXTURE_CUBE ||
 103        target == PIPE_TEXTURE_2D_ARRAY ||
 104        target == PIPE_TEXTURE_1D_ARRAY) {
 105       *layer_out = z_in;
 106       *z_out = 0;
 107    }
 108    else {
 109       *layer_out = 0;
 110       *z_out = z_in;
 111    }
 112 }
 113
 114
 115 static void
 116 svga_resource_copy_region(struct pipe_context *pipe,
 117                           struct pipe_resource *dst_tex,
 118                           unsigned dst_level,
 119                           unsigned dstx, unsigned dsty, unsigned dstz,
 120                           struct pipe_resource *src_tex,
 121                           unsigned src_level,
 122                           const struct pipe_box *src_box)
 123 {
 124    struct svga_context *svga = svga_context(pipe);
 125    struct svga_texture *stex, *dtex;
 126    unsigned dst_face_layer, dst_z, src_face_layer, src_z;
 127
 128    /* Emit buffered drawing commands, and any back copies.
 129     */
 130    svga_surfaces_flush( svga );
 131
 132    if (dst_tex->target == PIPE_BUFFER && src_tex->target == PIPE_BUFFER) {
 133       /* can't copy within the same buffer, unfortunately */
 134       if (svga_have_vgpu10(svga) && src_tex != dst_tex) {
 135          enum pipe_error ret;
 136          struct svga_winsys_surface *src_surf;
 137          struct svga_winsys_surface *dst_surf;
 138          struct svga_buffer *dbuffer = svga_buffer(dst_tex);
 139
 140          src_surf = svga_buffer_handle(svga, src_tex);
 141          dst_surf = svga_buffer_handle(svga, dst_tex);
 142
 143          ret = SVGA3D_vgpu10_BufferCopy(svga->swc, src_surf, dst_surf,
 144                                         src_box->x, dstx, src_box->width);
 145          if (ret != PIPE_OK) {
 146             svga_context_flush(svga, NULL);
 147             ret = SVGA3D_vgpu10_BufferCopy(svga->swc, src_surf, dst_surf,
 148                                            src_box->x, dstx, src_box->width);
 149             assert(ret == PIPE_OK);
 150          }
 151
 152          dbuffer->dirty = TRUE;
 153       }
 154       else {
 155          /* use map/memcpy fallback */
 156          util_resource_copy_region(pipe, dst_tex, dst_level, dstx,
 157                                    dsty, dstz, src_tex, src_level, src_box);
 158       }
 159       return;
 160    }
 161
 162    stex = svga_texture(src_tex);
 163    dtex = svga_texture(dst_tex);
 164
 165    adjust_z_layer(src_tex->target, src_box->z, &src_face_layer, &src_z);
 166    adjust_z_layer(dst_tex->target, dstz, &dst_face_layer, &dst_z);
 167
 168    if (svga_have_vgpu10(svga)) {
 169       /* vgpu10 */
 170       if (util_format_is_compressed(src_tex->format) ==
 171           util_format_is_compressed(dst_tex->format) &&
 172           stex->handle != dtex->handle &&
 173           svga_resource_type(src_tex->target) ==
 174           svga_resource_type(dst_tex->target) &&
 175           stex->b.b.nr_samples == dtex->b.b.nr_samples) {
 176          copy_region_vgpu10(svga,
 177                             src_tex,
 178                             src_box->x, src_box->y, src_z,
 179                             src_level, src_face_layer,
 180                             dst_tex,
 181                             dstx, dsty, dst_z,
 182                             dst_level, dst_face_layer,
 183                             src_box->width, src_box->height, src_box->depth);
 184       }
 185       else {
 186          util_resource_copy_region(pipe, dst_tex, dst_level, dstx, dsty, dstz,
 187                                    src_tex, src_level, src_box);
 188       }
 189    }
 190    else {
 191       /* vgpu9 */
 192       if (src_tex->format == dst_tex->format) {
 193          svga_texture_copy_handle(svga,
 194                                   stex->handle,
 195                                   src_box->x, src_box->y, src_z,
 196                                   src_level, src_face_layer,
 197                                   dtex->handle,
 198                                   dstx, dsty, dst_z,
 199                                    dst_level, dst_face_layer,
 200                                   src_box->width, src_box->height,
 201                                   src_box->depth);
 202       }
 203       else {
 204          util_resource_copy_region(pipe, dst_tex, dst_level, dstx, dsty, dstz,
 205                                    src_tex, src_level, src_box);
 206       }
 207    }
 208
 209    /* Mark the destination image as being defined */
 210    svga_define_texture_level(dtex, dst_face_layer, dst_level);
 211 }
 212
 213
 214 /**
 215  * Are the given pipe formats compatible, in terms of vgpu10's
 216  * PredCopyRegion() command?
 217  */
 218 static bool
 219 formats_compatible(const struct svga_screen *ss,
 220                    enum pipe_format src_fmt,
 221                    enum pipe_format dst_fmt)
 222 {
 223    SVGA3dSurfaceFormat src_svga_fmt, dst_svga_fmt;
 224
 225    src_svga_fmt = svga_translate_format(ss, src_fmt, PIPE_BIND_SAMPLER_VIEW);
 226    dst_svga_fmt = svga_translate_format(ss, dst_fmt, PIPE_BIND_SAMPLER_VIEW);
 227
 228    src_svga_fmt = svga_typeless_format(src_svga_fmt);
 229    dst_svga_fmt = svga_typeless_format(dst_svga_fmt);
 230
 231    return src_svga_fmt == dst_svga_fmt;
 232 }
 233
 234
 235 /**
 236  * The state tracker implements some resource copies with blits (for
 237  * GL_ARB_copy_image).  This function checks if we should really do the blit
 238  * with a VGPU10 CopyRegion command or software fallback (for incompatible
 239  * src/dst formats).
 240  */
 241 static bool
 242 can_blit_via_copy_region_vgpu10(struct svga_context *svga,
 243                                 const struct pipe_blit_info *blit_info)
 244 {
 245    struct svga_texture *dtex, *stex;
 246
 247    if (!svga_have_vgpu10(svga))
 248       return false;
 249
 250    stex = svga_texture(blit_info->src.resource);
 251    dtex = svga_texture(blit_info->dst.resource);
 252
 253    /* can't copy within one resource */
 254    if (stex->handle == dtex->handle)
 255       return false;
 256
 257    /* can't copy between different resource types */
 258    if (svga_resource_type(blit_info->src.resource->target) !=
 259        svga_resource_type(blit_info->dst.resource->target))
 260       return false;
 261
 262    /* check that the blit src/dst regions are same size, no flipping, etc. */
 263    if (blit_info->src.box.width != blit_info->dst.box.width ||
 264        blit_info->src.box.height != blit_info->dst.box.height)
 265       return false;
 266
 267    /* check that sample counts are the same */
 268    if (stex->b.b.nr_samples != dtex->b.b.nr_samples)
 269       return false;
 270
 271    /* For depth+stencil formats, copy with mask != PIPE_MASK_ZS is not
 272     * supported
 273     */
 274    if (util_format_is_depth_and_stencil(blit_info->src.format) &&
 275       blit_info->mask != (PIPE_MASK_ZS))
 276      return false;
 277
 278    if (blit_info->alpha_blend ||
 279        (svga->render_condition && blit_info->render_condition_enable) ||
 280        blit_info->scissor_enable)
 281       return false;
 282
 283    return formats_compatible(svga_screen(svga->pipe.screen),
 284                              blit_info->src.resource->format,
 285                              blit_info->dst.resource->format);
 286 }
 287
 288
 289 static void
 290 svga_blit(struct pipe_context *pipe,
 291           const struct pipe_blit_info *blit_info)
 292 {
 293    struct svga_context *svga = svga_context(pipe);
 294    struct pipe_blit_info blit = *blit_info;
 295
 296    if (!svga_have_vgpu10(svga) &&
 297        blit.src.resource->nr_samples > 1 &&
 298        blit.dst.resource->nr_samples <= 1 &&
 299        !util_format_is_depth_or_stencil(blit.src.resource->format) &&
 300        !util_format_is_pure_integer(blit.src.resource->format)) {
 301       debug_printf("svga: color resolve unimplemented\n");
 302       return;
 303    }
 304
 305    if (can_blit_via_copy_region_vgpu10(svga, blit_info)) {
 306       unsigned src_face, src_z, dst_face, dst_z;
 307
 308       adjust_z_layer(blit.src.resource->target, blit.src.box.z,
 309                      &src_face, &src_z);
 310
 311       adjust_z_layer(blit.dst.resource->target, blit.dst.box.z,
 312                      &dst_face, &dst_z);
 313
 314       copy_region_vgpu10(svga,
 315                          blit.src.resource,
 316                          blit.src.box.x, blit.src.box.y, src_z,
 317                          blit.src.level, src_face,
 318                          blit.dst.resource,
 319                          blit.dst.box.x, blit.dst.box.y, dst_z,
 320                          blit.dst.level, dst_face,
 321                          blit.src.box.width, blit.src.box.height,
 322                          blit.src.box.depth);
 323       return;
 324    }
 325
 326    if (util_can_blit_via_copy_region(blit_info, TRUE) ||
 327        util_can_blit_via_copy_region(blit_info, FALSE)) {
 328       util_resource_copy_region(pipe, blit.dst.resource,
 329                                 blit.dst.level,
 330                                 blit.dst.box.x, blit.dst.box.y,
 331                                 blit.dst.box.z, blit.src.resource,
 332                                 blit.src.level, &blit.src.box);
 333       return; /* done */
 334    }
 335
 336    if ((blit.mask & PIPE_MASK_S) ||
 337        !util_blitter_is_blit_supported(svga->blitter, blit_info)) {
 338       debug_printf("svga: blit unsupported %s -> %s\n",
 339                    util_format_short_name(blit.src.resource->format),
 340                    util_format_short_name(blit.dst.resource->format));
 341       return;
 342    }
 343
 344    /* XXX turn off occlusion and streamout queries */
 345
 346    util_blitter_save_vertex_buffer_slot(svga->blitter, svga->curr.vb);
 347    util_blitter_save_vertex_elements(svga->blitter, (void*)svga->curr.velems);
 348    util_blitter_save_vertex_shader(svga->blitter, svga->curr.vs);
 349    util_blitter_save_geometry_shader(svga->blitter, svga->curr.user_gs);
 350    util_blitter_save_so_targets(svga->blitter, svga->num_so_targets,
 351                      (struct pipe_stream_output_target**)svga->so_targets);
 352    util_blitter_save_rasterizer(svga->blitter, (void*)svga->curr.rast);
 353    util_blitter_save_viewport(svga->blitter, &svga->curr.viewport);
 354    util_blitter_save_scissor(svga->blitter, &svga->curr.scissor);
 355    util_blitter_save_fragment_shader(svga->blitter, svga->curr.fs);
 356    util_blitter_save_blend(svga->blitter, (void*)svga->curr.blend);
 357    util_blitter_save_depth_stencil_alpha(svga->blitter,
 358                                          (void*)svga->curr.depth);
 359    util_blitter_save_stencil_ref(svga->blitter, &svga->curr.stencil_ref);
 360    util_blitter_save_sample_mask(svga->blitter, svga->curr.sample_mask);
 361    util_blitter_save_framebuffer(svga->blitter, &svga->curr.framebuffer);
 362    util_blitter_save_fragment_sampler_states(svga->blitter,
 363                      svga->curr.num_samplers[PIPE_SHADER_FRAGMENT],
 364                      (void**)svga->curr.sampler[PIPE_SHADER_FRAGMENT]);
 365    util_blitter_save_fragment_sampler_views(svga->blitter,
 366                      svga->curr.num_sampler_views[PIPE_SHADER_FRAGMENT],
 367                      svga->curr.sampler_views[PIPE_SHADER_FRAGMENT]);
 368    /*util_blitter_save_render_condition(svga->blitter, svga->render_cond_query,
 369                                       svga->render_cond_cond, svga->render_cond_mode);*/
 370    util_blitter_blit(svga->blitter, &blit);
 371 }
 372
 373
 374 static void
 375 svga_flush_resource(struct pipe_context *pipe,
 376                     struct pipe_resource *resource)
 377 {
 378 }
 379
 380
 381 void
 382 svga_init_blit_functions(struct svga_context *svga)
 383 {
 384    svga->pipe.resource_copy_region = svga_resource_copy_region;
 385    svga->pipe.blit = svga_blit;
 386    svga->pipe.flush_resource = svga_flush_resource;
 387 }