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 void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 105 {
 106         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 107         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 108         int level = 0;
 109         float depth = 1.0f;
 110
 111         if (!texture->dirty_db)
 112                 return;
 113
 114         surf_tmpl.format = texture->real_format;
 115         surf_tmpl.u.tex.level = level;
 116         surf_tmpl.u.tex.first_layer = 0;
 117         surf_tmpl.u.tex.last_layer = 0;
 118         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 119
 120         zsurf = ctx->create_surface(ctx, &texture->resource.b.b.b, &surf_tmpl);
 121
 122         surf_tmpl.format = texture->flushed_depth_texture->real_format;
 123         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 124         cbsurf = ctx->create_surface(ctx,
 125                         (struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
 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         r600_blitter_begin(ctx, R600_DECOMPRESS);
 132         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 133         r600_blitter_end(ctx);
 134
 135         pipe_surface_reference(&zsurf, NULL);
 136         pipe_surface_reference(&cbsurf, NULL);
 137
 138         texture->dirty_db = FALSE;
 139 }
 140
 141 void r600_flush_depth_textures(struct r600_pipe_context *rctx)
 142 {
 143         unsigned int i;
 144
 145         /* FIXME: This handles fragment shader textures only. */
 146
 147         for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
 148                 struct r600_pipe_sampler_view *view;
 149                 struct r600_resource_texture *tex;
 150
 151                 view = rctx->ps_samplers.views[i];
 152                 if (!view) continue;
 153
 154                 tex = (struct r600_resource_texture *)view->base.texture;
 155                 if (!tex->depth)
 156                         continue;
 157
 158                 if (tex->is_flushing_texture)
 159                         continue;
 160
 161                 r600_blit_uncompress_depth(&rctx->context, tex);
 162         }
 163
 164         /* also check CB here */
 165         for (i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
 166                 struct r600_resource_texture *tex;
 167                 tex = (struct r600_resource_texture *)rctx->framebuffer.cbufs[i]->texture;
 168
 169                 if (!tex->depth)
 170                         continue;
 171
 172                 if (tex->is_flushing_texture)
 173                         continue;
 174
 175                 r600_blit_uncompress_depth(&rctx->context, tex);
 176         }
 177 }
 178
 179 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 180                         const float *rgba, double depth, unsigned stencil)
 181 {
 182         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 183         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 184
 185         r600_blitter_begin(ctx, R600_CLEAR);
 186         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 187                                 fb->nr_cbufs, buffers, rgba, depth,
 188                                 stencil);
 189         r600_blitter_end(ctx);
 190 }
 191
 192 static void r600_clear_render_target(struct pipe_context *ctx,
 193                                      struct pipe_surface *dst,
 194                                      const float *rgba,
 195                                      unsigned dstx, unsigned dsty,
 196                                      unsigned width, unsigned height)
 197 {
 198         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 199
 200         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 201         util_blitter_clear_render_target(rctx->blitter, dst, rgba,
 202                                          dstx, dsty, width, height);
 203         r600_blitter_end(ctx);
 204 }
 205
 206 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 207                                      struct pipe_surface *dst,
 208                                      unsigned clear_flags,
 209                                      double depth,
 210                                      unsigned stencil,
 211                                      unsigned dstx, unsigned dsty,
 212                                      unsigned width, unsigned height)
 213 {
 214         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 215
 216         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 217         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 218                                          dstx, dsty, width, height);
 219         r600_blitter_end(ctx);
 220 }
 221
 222
 223
 224 /* Copy a block of pixels from one surface to another using HW. */
 225 static void r600_hw_copy_region(struct pipe_context *ctx,
 226                                 struct pipe_resource *dst,
 227                                 unsigned dst_level,
 228                                 unsigned dstx, unsigned dsty, unsigned dstz,
 229                                 struct pipe_resource *src,
 230                                 unsigned src_level,
 231                                 const struct pipe_box *src_box)
 232 {
 233         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 234
 235         r600_blitter_begin(ctx, R600_COPY);
 236         util_blitter_copy_texture(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 237                                   src, src_level, src_box, TRUE);
 238         r600_blitter_end(ctx);
 239 }
 240
 241 struct texture_orig_info {
 242         unsigned format;
 243         unsigned width0;
 244         unsigned height0;
 245 };
 246
 247 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 248                                    unsigned level,
 249                                    struct texture_orig_info *orig)
 250 {
 251         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 252         unsigned pixsize = util_format_get_blocksize(rtex->real_format);
 253         int new_format;
 254         int new_height, new_width;
 255
 256         orig->format = tex->format;
 257         orig->width0 = tex->width0;
 258         orig->height0 = tex->height0;
 259
 260         if (pixsize == 8)
 261                 new_format = PIPE_FORMAT_R16G16B16A16_UNORM; /* 64-bit block */
 262         else
 263                 new_format = PIPE_FORMAT_R32G32B32A32_UNORM; /* 128-bit block */
 264
 265         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 266         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 267
 268         rtex->force_int_type = true;
 269         tex->width0 = new_width;
 270         tex->height0 = new_height;
 271         tex->format = new_format;
 272 }
 273
 274 static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
 275                                          unsigned level,
 276                                          struct texture_orig_info *orig)
 277 {
 278         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 279         rtex->force_int_type = false;
 280
 281         tex->format = orig->format;
 282         tex->width0 = orig->width0;
 283         tex->height0 = orig->height0;
 284 }
 285
 286 static void r600_resource_copy_region(struct pipe_context *ctx,
 287                                       struct pipe_resource *dst,
 288                                       unsigned dst_level,
 289                                       unsigned dstx, unsigned dsty, unsigned dstz,
 290                                       struct pipe_resource *src,
 291                                       unsigned src_level,
 292                                       const struct pipe_box *src_box)
 293 {
 294         struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
 295         struct texture_orig_info orig_info[2];
 296         struct pipe_box sbox;
 297         const struct pipe_box *psbox;
 298         boolean restore_orig[2];
 299
 300         /* Fallback for buffers. */
 301         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 302                 util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 303                                           src, src_level, src_box);
 304                 return;
 305         }
 306
 307         if (rsrc->depth && !rsrc->is_flushing_texture)
 308                 r600_texture_depth_flush(ctx, src, FALSE);
 309
 310         restore_orig[0] = restore_orig[1] = FALSE;
 311
 312         if (util_format_is_compressed(src->format)) {
 313                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 314                 restore_orig[0] = TRUE;
 315                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 316                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 317                 sbox.z = src_box->z;
 318                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 319                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 320                 sbox.depth = src_box->depth;
 321                 psbox=&sbox;
 322         } else
 323                 psbox=src_box;
 324
 325         if (util_format_is_compressed(dst->format)) {
 326                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 327                 restore_orig[1] = TRUE;
 328                 /* translate the dst box as well */
 329                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 330                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 331         }
 332
 333         r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 334                             src, src_level, psbox);
 335
 336         if (restore_orig[0])
 337                 r600_reset_blittable_to_compressed(src, src_level, &orig_info[0]);
 338
 339         if (restore_orig[1])
 340                 r600_reset_blittable_to_compressed(dst, dst_level, &orig_info[1]);
 341 }
 342
 343 void r600_init_blit_functions(struct r600_pipe_context *rctx)
 344 {
 345         rctx->context.clear = r600_clear;
 346         rctx->context.clear_render_target = r600_clear_render_target;
 347         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 348         rctx->context.resource_copy_region = r600_resource_copy_region;
 349 }
 350
 351 void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 352 {
 353         struct pipe_box sbox;
 354
 355         sbox.x = sbox.y = sbox.z = 0;
 356         sbox.width = texture->resource.b.b.b.width0;
 357         sbox.height = texture->resource.b.b.b.height0;
 358         /* XXX that might be wrong */
 359         sbox.depth = 1;
 360
 361         r600_hw_copy_region(ctx, (struct pipe_resource *)texture, 0,
 362                             0, 0, 0,
 363                             (struct pipe_resource *)texture->flushed_depth_texture, 0,
 364                             &sbox);
 365 }