src/gallium/drivers/r600/r600_blit.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #include "util/u_surface.h"
  24 #include "util/u_blitter.h"
  25 #include "util/u_format.h"
  26 #include "r600_pipe.h"
  27
  28 enum r600_blitter_op /* bitmask */
  29 {
  30         R600_SAVE_TEXTURES      = 1,
  31         R600_SAVE_FRAMEBUFFER   = 2,
  32         R600_DISABLE_RENDER_COND = 4,
  33
  34         R600_CLEAR         = 0,
  35
  36         R600_CLEAR_SURFACE = R600_SAVE_FRAMEBUFFER,
  37
  38         R600_COPY          = R600_SAVE_FRAMEBUFFER | R600_SAVE_TEXTURES |
  39                              R600_DISABLE_RENDER_COND,
  40
  41         R600_DECOMPRESS    = R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND,
  42 };
  43
  44 static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
  45 {
  46         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  47
  48         r600_context_queries_suspend(&rctx->ctx);
  49
  50         util_blitter_save_blend(rctx->blitter, rctx->states[R600_PIPE_STATE_BLEND]);
  51         util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->states[R600_PIPE_STATE_DSA]);
  52         if (rctx->states[R600_PIPE_STATE_STENCIL_REF]) {
  53                 util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
  54         }
  55         util_blitter_save_rasterizer(rctx->blitter, rctx->states[R600_PIPE_STATE_RASTERIZER]);
  56         util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
  57         util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
  58         util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
  59         if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
  60                 util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
  61         }
  62         if (rctx->states[R600_PIPE_STATE_CLIP]) {
  63                 util_blitter_save_clip(rctx->blitter, &rctx->clip);
  64         }
  65         util_blitter_save_vertex_buffers(rctx->blitter,
  66                                          rctx->vbuf_mgr->nr_vertex_buffers,
  67                                          rctx->vbuf_mgr->vertex_buffer);
  68
  69         if (op & R600_SAVE_FRAMEBUFFER)
  70                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  71
  72         if (op & R600_SAVE_TEXTURES) {
  73                 util_blitter_save_fragment_sampler_states(
  74                         rctx->blitter, rctx->ps_samplers.n_samplers,
  75                         (void**)rctx->ps_samplers.samplers);
  76
  77                 util_blitter_save_fragment_sampler_views(
  78                         rctx->blitter, rctx->ps_samplers.n_views,
  79                         (struct pipe_sampler_view**)rctx->ps_samplers.views);
  80         }
  81
  82         if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
  83                 rctx->saved_render_cond = rctx->current_render_cond;
  84                 rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
  85                 rctx->context.render_condition(&rctx->context, NULL, 0);
  86         }
  87
  88 }
  89
  90 static void r600_blitter_end(struct pipe_context *ctx)
  91 {
  92         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  93         if (rctx->saved_render_cond) {
  94                 rctx->context.render_condition(&rctx->context,
  95                                                rctx->saved_render_cond,
  96                                                rctx->saved_render_cond_mode);
  97                 rctx->saved_render_cond = NULL;
  98         }
  99         r600_context_queries_resume(&rctx->ctx);
 100 }
 101
 102 static unsigned u_num_layers(struct pipe_resource *r, unsigned level)
 103 {
 104         switch (r->target) {
 105         case PIPE_TEXTURE_CUBE:
 106                 return 6;
 107         case PIPE_TEXTURE_3D:
 108                 return u_minify(r->depth0, level);
 109         case PIPE_TEXTURE_1D_ARRAY:
 110                 return r->array_size;
 111         case PIPE_TEXTURE_2D_ARRAY:
 112                 return r->array_size;
 113         default:
 114                 return 1;
 115         }
 116 }
 117
 118 void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 119 {
 120         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 121         unsigned layer, level;
 122         float depth = 1.0f;
 123
 124         if (!texture->dirty_db)
 125                 return;
 126
 127         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 128             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 129                 depth = 0.0f;
 130
 131         for (level = 0; level <= texture->resource.b.b.b.last_level; level++) {
 132                 unsigned num_layers = u_num_layers(&texture->resource.b.b.b, level);
 133
 134                 for (layer = 0; layer < num_layers; layer++) {
 135                         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 136
 137                         surf_tmpl.format = texture->real_format;
 138                         surf_tmpl.u.tex.level = level;
 139                         surf_tmpl.u.tex.first_layer = layer;
 140                         surf_tmpl.u.tex.last_layer = layer;
 141                         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 142
 143                         zsurf = ctx->create_surface(ctx, &texture->resource.b.b.b, &surf_tmpl);
 144
 145                         surf_tmpl.format = texture->flushed_depth_texture->real_format;
 146                         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 147                         cbsurf = ctx->create_surface(ctx,
 148                                         (struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
 149
 150                         r600_blitter_begin(ctx, R600_DECOMPRESS);
 151                         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 152                         r600_blitter_end(ctx);
 153
 154                         pipe_surface_reference(&zsurf, NULL);
 155                         pipe_surface_reference(&cbsurf, NULL);
 156                 }
 157         }
 158
 159         texture->dirty_db = FALSE;
 160 }
 161
 162 void r600_flush_depth_textures(struct r600_pipe_context *rctx)
 163 {
 164         unsigned int i;
 165
 166         /* FIXME: This handles fragment shader textures only. */
 167
 168         for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
 169                 struct r600_pipe_sampler_view *view;
 170                 struct r600_resource_texture *tex;
 171
 172                 view = rctx->ps_samplers.views[i];
 173                 if (!view) continue;
 174
 175                 tex = (struct r600_resource_texture *)view->base.texture;
 176                 if (!tex->depth)
 177                         continue;
 178
 179                 if (tex->is_flushing_texture)
 180                         continue;
 181
 182                 r600_blit_uncompress_depth(&rctx->context, tex);
 183         }
 184
 185         /* also check CB here */
 186         for (i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
 187                 struct r600_resource_texture *tex;
 188                 tex = (struct r600_resource_texture *)rctx->framebuffer.cbufs[i]->texture;
 189
 190                 if (!tex->depth)
 191                         continue;
 192
 193                 if (tex->is_flushing_texture)
 194                         continue;
 195
 196                 r600_blit_uncompress_depth(&rctx->context, tex);
 197         }
 198 }
 199
 200 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 201                        const union pipe_color_union *color,
 202                        double depth, unsigned stencil)
 203 {
 204         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 205         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 206
 207         r600_blitter_begin(ctx, R600_CLEAR);
 208         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 209                            fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
 210                            color, depth, stencil);
 211         r600_blitter_end(ctx);
 212 }
 213
 214 static void r600_clear_render_target(struct pipe_context *ctx,
 215                                      struct pipe_surface *dst,
 216                                      const union pipe_color_union *color,
 217                                      unsigned dstx, unsigned dsty,
 218                                      unsigned width, unsigned height)
 219 {
 220         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 221
 222         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 223         util_blitter_clear_render_target(rctx->blitter, dst, color,
 224                                          dstx, dsty, width, height);
 225         r600_blitter_end(ctx);
 226 }
 227
 228 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 229                                      struct pipe_surface *dst,
 230                                      unsigned clear_flags,
 231                                      double depth,
 232                                      unsigned stencil,
 233                                      unsigned dstx, unsigned dsty,
 234                                      unsigned width, unsigned height)
 235 {
 236         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 237
 238         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 239         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 240                                          dstx, dsty, width, height);
 241         r600_blitter_end(ctx);
 242 }
 243
 244
 245
 246 /* Copy a block of pixels from one surface to another using HW. */
 247 static void r600_hw_copy_region(struct pipe_context *ctx,
 248                                 struct pipe_resource *dst,
 249                                 unsigned dst_level,
 250                                 unsigned dstx, unsigned dsty, unsigned dstz,
 251                                 struct pipe_resource *src,
 252                                 unsigned src_level,
 253                                 const struct pipe_box *src_box)
 254 {
 255         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 256
 257         r600_blitter_begin(ctx, R600_COPY);
 258         util_blitter_copy_texture(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 259                                   src, src_level, src_box, TRUE);
 260         r600_blitter_end(ctx);
 261 }
 262
 263 struct texture_orig_info {
 264         unsigned format;
 265         unsigned width0;
 266         unsigned height0;
 267 };
 268
 269 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 270                                    unsigned level,
 271                                    struct texture_orig_info *orig)
 272 {
 273         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 274         unsigned pixsize = util_format_get_blocksize(rtex->real_format);
 275         int new_format;
 276         int new_height, new_width;
 277
 278         orig->format = tex->format;
 279         orig->width0 = tex->width0;
 280         orig->height0 = tex->height0;
 281
 282         if (pixsize == 8)
 283                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 284         else
 285                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 286
 287         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 288         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 289
 290         tex->width0 = new_width;
 291         tex->height0 = new_height;
 292         tex->format = new_format;
 293 }
 294
 295 static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
 296                                                struct texture_orig_info *orig)
 297 {
 298         tex->format = orig->format;
 299         tex->width0 = orig->width0;
 300         tex->height0 = orig->height0;
 301 }
 302
 303 static void r600_resource_copy_region(struct pipe_context *ctx,
 304                                       struct pipe_resource *dst,
 305                                       unsigned dst_level,
 306                                       unsigned dstx, unsigned dsty, unsigned dstz,
 307                                       struct pipe_resource *src,
 308                                       unsigned src_level,
 309                                       const struct pipe_box *src_box)
 310 {
 311         struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
 312         struct texture_orig_info orig_info[2];
 313         struct pipe_box sbox;
 314         const struct pipe_box *psbox;
 315         boolean restore_orig[2];
 316
 317         /* Fallback for buffers. */
 318         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 319                 util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 320                                           src, src_level, src_box);
 321                 return;
 322         }
 323
 324         if (rsrc->depth && !rsrc->is_flushing_texture)
 325                 r600_texture_depth_flush(ctx, src, FALSE);
 326
 327         restore_orig[0] = restore_orig[1] = FALSE;
 328
 329         if (util_format_is_compressed(src->format)) {
 330                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 331                 restore_orig[0] = TRUE;
 332                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 333                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 334                 sbox.z = src_box->z;
 335                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 336                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 337                 sbox.depth = src_box->depth;
 338                 psbox=&sbox;
 339         } else
 340                 psbox=src_box;
 341
 342         if (util_format_is_compressed(dst->format)) {
 343                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 344                 restore_orig[1] = TRUE;
 345                 /* translate the dst box as well */
 346                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 347                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 348         }
 349
 350         r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 351                             src, src_level, psbox);
 352
 353         if (restore_orig[0])
 354                 r600_reset_blittable_to_compressed(src, &orig_info[0]);
 355
 356         if (restore_orig[1])
 357                 r600_reset_blittable_to_compressed(dst, &orig_info[1]);
 358 }
 359
 360 void r600_init_blit_functions(struct r600_pipe_context *rctx)
 361 {
 362         rctx->context.clear = r600_clear;
 363         rctx->context.clear_render_target = r600_clear_render_target;
 364         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 365         rctx->context.resource_copy_region = r600_resource_copy_region;
 366 }
 367
 368 void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 369 {
 370         struct pipe_box sbox;
 371
 372         sbox.x = sbox.y = sbox.z = 0;
 373         sbox.width = texture->resource.b.b.b.width0;
 374         sbox.height = texture->resource.b.b.b.height0;
 375         /* XXX that might be wrong */
 376         sbox.depth = 1;
 377
 378         r600_hw_copy_region(ctx, (struct pipe_resource *)texture, 0,
 379                             0, 0, 0,
 380                             (struct pipe_resource *)texture->flushed_depth_texture, 0,
 381                             &sbox);
 382 }