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         rctx->blit = true;
  49         r600_context_queries_suspend(&rctx->ctx);
  50
  51         util_blitter_save_blend(rctx->blitter, rctx->states[R600_PIPE_STATE_BLEND]);
  52         util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->states[R600_PIPE_STATE_DSA]);
  53         if (rctx->states[R600_PIPE_STATE_STENCIL_REF]) {
  54                 util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
  55         }
  56         util_blitter_save_rasterizer(rctx->blitter, rctx->states[R600_PIPE_STATE_RASTERIZER]);
  57         util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
  58         util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
  59         util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
  60         if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
  61                 util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
  62         }
  63         if (rctx->states[R600_PIPE_STATE_CLIP]) {
  64                 util_blitter_save_clip(rctx->blitter, &rctx->clip);
  65         }
  66         util_blitter_save_vertex_buffers(rctx->blitter,
  67                                          rctx->vbuf_mgr->nr_vertex_buffers,
  68                                          rctx->vbuf_mgr->vertex_buffer);
  69
  70         if (op & R600_SAVE_FRAMEBUFFER)
  71                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  72
  73         if (op & R600_SAVE_TEXTURES) {
  74                 util_blitter_save_fragment_sampler_states(
  75                         rctx->blitter, rctx->ps_samplers.n_samplers,
  76                         (void**)rctx->ps_samplers.samplers);
  77
  78                 util_blitter_save_fragment_sampler_views(
  79                         rctx->blitter, rctx->ps_samplers.n_views,
  80                         (struct pipe_sampler_view**)rctx->ps_samplers.views);
  81         }
  82
  83         if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
  84                 rctx->saved_render_cond = rctx->current_render_cond;
  85                 rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
  86                 rctx->context.render_condition(&rctx->context, NULL, 0);
  87         }
  88
  89 }
  90
  91 static void r600_blitter_end(struct pipe_context *ctx)
  92 {
  93         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  94         if (rctx->saved_render_cond) {
  95                 rctx->context.render_condition(&rctx->context,
  96                                                rctx->saved_render_cond,
  97                                                rctx->saved_render_cond_mode);
  98                 rctx->saved_render_cond = NULL;
  99         }
 100         r600_context_queries_resume(&rctx->ctx, FALSE);
 101         rctx->blit = false;
 102 }
 103
 104 static unsigned u_num_layers(struct pipe_resource *r, unsigned level)
 105 {
 106         switch (r->target) {
 107         case PIPE_TEXTURE_CUBE:
 108                 return 6;
 109         case PIPE_TEXTURE_3D:
 110                 return u_minify(r->depth0, level);
 111         case PIPE_TEXTURE_1D_ARRAY:
 112                 return r->array_size;
 113         case PIPE_TEXTURE_2D_ARRAY:
 114                 return r->array_size;
 115         default:
 116                 return 1;
 117         }
 118 }
 119
 120 void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 121 {
 122         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 123         unsigned layer, level;
 124         float depth = 1.0f;
 125
 126         if (!texture->dirty_db)
 127                 return;
 128
 129         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 130             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 131                 depth = 0.0f;
 132
 133         for (level = 0; level <= texture->resource.b.b.b.last_level; level++) {
 134                 unsigned num_layers = u_num_layers(&texture->resource.b.b.b, level);
 135
 136                 for (layer = 0; layer < num_layers; layer++) {
 137                         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 138
 139                         surf_tmpl.format = texture->real_format;
 140                         surf_tmpl.u.tex.level = level;
 141                         surf_tmpl.u.tex.first_layer = layer;
 142                         surf_tmpl.u.tex.last_layer = layer;
 143                         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 144
 145                         zsurf = ctx->create_surface(ctx, &texture->resource.b.b.b, &surf_tmpl);
 146
 147                         surf_tmpl.format = texture->flushed_depth_texture->real_format;
 148                         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 149                         cbsurf = ctx->create_surface(ctx,
 150                                         (struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
 151
 152                         r600_blitter_begin(ctx, R600_DECOMPRESS);
 153                         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 154                         r600_blitter_end(ctx);
 155
 156                         pipe_surface_reference(&zsurf, NULL);
 157                         pipe_surface_reference(&cbsurf, NULL);
 158                 }
 159         }
 160
 161         texture->dirty_db = FALSE;
 162 }
 163
 164 void r600_flush_depth_textures(struct r600_pipe_context *rctx)
 165 {
 166         unsigned int i;
 167
 168         /* FIXME: This handles fragment shader textures only. */
 169
 170         for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
 171                 struct r600_pipe_sampler_view *view;
 172                 struct r600_resource_texture *tex;
 173
 174                 view = rctx->ps_samplers.views[i];
 175                 if (!view) continue;
 176
 177                 tex = (struct r600_resource_texture *)view->base.texture;
 178                 if (!tex->depth)
 179                         continue;
 180
 181                 if (tex->is_flushing_texture)
 182                         continue;
 183
 184                 r600_blit_uncompress_depth(&rctx->context, tex);
 185         }
 186
 187         /* also check CB here */
 188         for (i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
 189                 struct r600_resource_texture *tex;
 190                 tex = (struct r600_resource_texture *)rctx->framebuffer.cbufs[i]->texture;
 191
 192                 if (!tex->depth)
 193                         continue;
 194
 195                 if (tex->is_flushing_texture)
 196                         continue;
 197
 198                 r600_blit_uncompress_depth(&rctx->context, tex);
 199         }
 200 }
 201
 202 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 203                        const union pipe_color_union *color,
 204                        double depth, unsigned stencil)
 205 {
 206         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 207         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 208
 209         r600_blitter_begin(ctx, R600_CLEAR);
 210         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 211                            fb->nr_cbufs, buffers, color, depth,
 212                            stencil);
 213         r600_blitter_end(ctx);
 214 }
 215
 216 static void r600_clear_render_target(struct pipe_context *ctx,
 217                                      struct pipe_surface *dst,
 218                                      const union pipe_color_union *color,
 219                                      unsigned dstx, unsigned dsty,
 220                                      unsigned width, unsigned height)
 221 {
 222         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 223
 224         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 225         util_blitter_clear_render_target(rctx->blitter, dst, color,
 226                                          dstx, dsty, width, height);
 227         r600_blitter_end(ctx);
 228 }
 229
 230 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 231                                      struct pipe_surface *dst,
 232                                      unsigned clear_flags,
 233                                      double depth,
 234                                      unsigned stencil,
 235                                      unsigned dstx, unsigned dsty,
 236                                      unsigned width, unsigned height)
 237 {
 238         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 239
 240         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 241         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 242                                          dstx, dsty, width, height);
 243         r600_blitter_end(ctx);
 244 }
 245
 246
 247
 248 /* Copy a block of pixels from one surface to another using HW. */
 249 static void r600_hw_copy_region(struct pipe_context *ctx,
 250                                 struct pipe_resource *dst,
 251                                 unsigned dst_level,
 252                                 unsigned dstx, unsigned dsty, unsigned dstz,
 253                                 struct pipe_resource *src,
 254                                 unsigned src_level,
 255                                 const struct pipe_box *src_box)
 256 {
 257         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 258
 259         r600_blitter_begin(ctx, R600_COPY);
 260         util_blitter_copy_texture(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 261                                   src, src_level, src_box, TRUE);
 262         r600_blitter_end(ctx);
 263 }
 264
 265 struct texture_orig_info {
 266         unsigned format;
 267         unsigned width0;
 268         unsigned height0;
 269 };
 270
 271 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 272                                    unsigned level,
 273                                    struct texture_orig_info *orig)
 274 {
 275         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 276         unsigned pixsize = util_format_get_blocksize(rtex->real_format);
 277         int new_format;
 278         int new_height, new_width;
 279
 280         orig->format = tex->format;
 281         orig->width0 = tex->width0;
 282         orig->height0 = tex->height0;
 283
 284         if (pixsize == 8)
 285                 new_format = PIPE_FORMAT_R16G16B16A16_UNORM; /* 64-bit block */
 286         else
 287                 new_format = PIPE_FORMAT_R32G32B32A32_UNORM; /* 128-bit block */
 288
 289         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 290         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 291
 292         rtex->force_int_type = true;
 293         tex->width0 = new_width;
 294         tex->height0 = new_height;
 295         tex->format = new_format;
 296 }
 297
 298 static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
 299                                          unsigned level,
 300                                          struct texture_orig_info *orig)
 301 {
 302         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 303         rtex->force_int_type = false;
 304
 305         tex->format = orig->format;
 306         tex->width0 = orig->width0;
 307         tex->height0 = orig->height0;
 308 }
 309
 310 static void r600_resource_copy_region(struct pipe_context *ctx,
 311                                       struct pipe_resource *dst,
 312                                       unsigned dst_level,
 313                                       unsigned dstx, unsigned dsty, unsigned dstz,
 314                                       struct pipe_resource *src,
 315                                       unsigned src_level,
 316                                       const struct pipe_box *src_box)
 317 {
 318         struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
 319         struct texture_orig_info orig_info[2];
 320         struct pipe_box sbox;
 321         const struct pipe_box *psbox;
 322         boolean restore_orig[2];
 323
 324         /* Fallback for buffers. */
 325         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 326                 util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 327                                           src, src_level, src_box);
 328                 return;
 329         }
 330
 331         if (rsrc->depth && !rsrc->is_flushing_texture)
 332                 r600_texture_depth_flush(ctx, src, FALSE);
 333
 334         restore_orig[0] = restore_orig[1] = FALSE;
 335
 336         if (util_format_is_compressed(src->format)) {
 337                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 338                 restore_orig[0] = TRUE;
 339                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 340                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 341                 sbox.z = src_box->z;
 342                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 343                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 344                 sbox.depth = src_box->depth;
 345                 psbox=&sbox;
 346         } else
 347                 psbox=src_box;
 348
 349         if (util_format_is_compressed(dst->format)) {
 350                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 351                 restore_orig[1] = TRUE;
 352                 /* translate the dst box as well */
 353                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 354                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 355         }
 356
 357         r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 358                             src, src_level, psbox);
 359
 360         if (restore_orig[0])
 361                 r600_reset_blittable_to_compressed(src, src_level, &orig_info[0]);
 362
 363         if (restore_orig[1])
 364                 r600_reset_blittable_to_compressed(dst, dst_level, &orig_info[1]);
 365 }
 366
 367 void r600_init_blit_functions(struct r600_pipe_context *rctx)
 368 {
 369         rctx->context.clear = r600_clear;
 370         rctx->context.clear_render_target = r600_clear_render_target;
 371         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 372         rctx->context.resource_copy_region = r600_resource_copy_region;
 373 }
 374
 375 void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 376 {
 377         struct pipe_box sbox;
 378
 379         sbox.x = sbox.y = sbox.z = 0;
 380         sbox.width = texture->resource.b.b.b.width0;
 381         sbox.height = texture->resource.b.b.b.height0;
 382         /* XXX that might be wrong */
 383         sbox.depth = 1;
 384
 385         r600_hw_copy_region(ctx, (struct pipe_resource *)texture, 0,
 386                             0, 0, 0,
 387                             (struct pipe_resource *)texture->flushed_depth_texture, 0,
 388                             &sbox);
 389 }