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_CLEAR         = 1,
  31         R600_CLEAR_SURFACE = 2,
  32         R600_COPY          = 4
  33 };
  34
  35 static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
  36 {
  37         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  38
  39         rctx->blit = true;
  40         r600_context_queries_suspend(&rctx->ctx);
  41
  42         util_blitter_save_blend(rctx->blitter, rctx->states[R600_PIPE_STATE_BLEND]);
  43         util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->states[R600_PIPE_STATE_DSA]);
  44         if (rctx->states[R600_PIPE_STATE_STENCIL_REF]) {
  45                 util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
  46         }
  47         util_blitter_save_rasterizer(rctx->blitter, rctx->states[R600_PIPE_STATE_RASTERIZER]);
  48         util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
  49         util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
  50         util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
  51         if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
  52                 util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
  53         }
  54         if (rctx->states[R600_PIPE_STATE_CLIP]) {
  55                 util_blitter_save_clip(rctx->blitter, &rctx->clip);
  56         }
  57         util_blitter_save_vertex_buffers(rctx->blitter,
  58                                          rctx->vbuf_mgr->nr_vertex_buffers,
  59                                          rctx->vbuf_mgr->vertex_buffer);
  60
  61         if (op & (R600_CLEAR_SURFACE | R600_COPY))
  62                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  63
  64         if (op & R600_COPY) {
  65                 util_blitter_save_fragment_sampler_states(
  66                         rctx->blitter, rctx->ps_samplers.n_samplers,
  67                         (void**)rctx->ps_samplers.samplers);
  68
  69                 util_blitter_save_fragment_sampler_views(
  70                         rctx->blitter, rctx->ps_samplers.n_views,
  71                         (struct pipe_sampler_view**)rctx->ps_samplers.views);
  72         }
  73
  74 }
  75
  76 static void r600_blitter_end(struct pipe_context *ctx)
  77 {
  78         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  79         r600_context_queries_resume(&rctx->ctx);
  80         rctx->blit = false;
  81 }
  82
  83 void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
  84 {
  85         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  86         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
  87         int level = 0;
  88         float depth = 1.0f;
  89
  90         if (!texture->dirty_db)
  91                 return;
  92
  93         surf_tmpl.format = texture->resource.b.b.b.format;
  94         surf_tmpl.u.tex.level = level;
  95         surf_tmpl.u.tex.first_layer = 0;
  96         surf_tmpl.u.tex.last_layer = 0;
  97         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
  98
  99         zsurf = ctx->create_surface(ctx, &texture->resource.b.b.b, &surf_tmpl);
 100
 101         surf_tmpl.format = ((struct pipe_resource*)texture->flushed_depth_texture)->format;
 102         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 103         cbsurf = ctx->create_surface(ctx,
 104                         (struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
 105
 106         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 107             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 108                 depth = 0.0f;
 109
 110         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 111         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 112         r600_blitter_end(ctx);
 113
 114         pipe_surface_reference(&zsurf, NULL);
 115         pipe_surface_reference(&cbsurf, NULL);
 116
 117         texture->dirty_db = FALSE;
 118 }
 119
 120 void r600_flush_depth_textures(struct r600_pipe_context *rctx)
 121 {
 122         unsigned int i;
 123
 124         if (rctx->blit) return;
 125
 126         /* FIXME: This handles fragment shader textures only. */
 127
 128         for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
 129                 struct r600_pipe_sampler_view *view;
 130                 struct r600_resource_texture *tex;
 131
 132                 view = rctx->ps_samplers.views[i];
 133                 if (!view) continue;
 134
 135                 tex = (struct r600_resource_texture *)view->base.texture;
 136                 if (!tex->depth)
 137                         continue;
 138
 139                 if (tex->is_flushing_texture)
 140                         continue;
 141
 142                 r600_blit_uncompress_depth(&rctx->context, tex);
 143         }
 144
 145         /* also check CB here */
 146         for (i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
 147                 struct r600_resource_texture *tex;
 148                 tex = (struct r600_resource_texture *)rctx->framebuffer.cbufs[i]->texture;
 149
 150                 if (!tex->depth)
 151                         continue;
 152
 153                 if (tex->is_flushing_texture)
 154                         continue;
 155
 156                 r600_blit_uncompress_depth(&rctx->context, tex);
 157         }
 158 }
 159
 160 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 161                         const float *rgba, double depth, unsigned stencil)
 162 {
 163         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 164         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 165
 166         r600_blitter_begin(ctx, R600_CLEAR);
 167         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 168                                 fb->nr_cbufs, buffers, rgba, depth,
 169                                 stencil);
 170         r600_blitter_end(ctx);
 171 }
 172
 173 static void r600_clear_render_target(struct pipe_context *ctx,
 174                                      struct pipe_surface *dst,
 175                                      const float *rgba,
 176                                      unsigned dstx, unsigned dsty,
 177                                      unsigned width, unsigned height)
 178 {
 179         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 180
 181         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 182         util_blitter_clear_render_target(rctx->blitter, dst, rgba,
 183                                          dstx, dsty, width, height);
 184         r600_blitter_end(ctx);
 185 }
 186
 187 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 188                                      struct pipe_surface *dst,
 189                                      unsigned clear_flags,
 190                                      double depth,
 191                                      unsigned stencil,
 192                                      unsigned dstx, unsigned dsty,
 193                                      unsigned width, unsigned height)
 194 {
 195         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 196
 197         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 198         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 199                                          dstx, dsty, width, height);
 200         r600_blitter_end(ctx);
 201 }
 202
 203
 204
 205 /* Copy a block of pixels from one surface to another using HW. */
 206 static void r600_hw_copy_region(struct pipe_context *ctx,
 207                                 struct pipe_resource *dst,
 208                                 unsigned dst_level,
 209                                 unsigned dstx, unsigned dsty, unsigned dstz,
 210                                 struct pipe_resource *src,
 211                                 unsigned src_level,
 212                                 const struct pipe_box *src_box)
 213 {
 214         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 215
 216         r600_blitter_begin(ctx, R600_COPY);
 217         util_blitter_copy_region(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 218                                  src, src_level, src_box, TRUE);
 219         r600_blitter_end(ctx);
 220 }
 221
 222 struct texture_orig_info {
 223         unsigned format;
 224         unsigned width0;
 225         unsigned height0;
 226 };
 227
 228 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 229                                    unsigned level,
 230                                    struct texture_orig_info *orig)
 231 {
 232         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 233         unsigned pixsize = util_format_get_blocksize(tex->format);
 234         int new_format;
 235         int new_height, new_width;
 236
 237         orig->format = tex->format;
 238         orig->width0 = tex->width0;
 239         orig->height0 = tex->height0;
 240
 241         if (pixsize == 8)
 242                 new_format = PIPE_FORMAT_R16G16B16A16_UNORM; /* 64-bit block */
 243         else
 244                 new_format = PIPE_FORMAT_R32G32B32A32_UNORM; /* 128-bit block */
 245
 246         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 247         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 248
 249         rtex->force_int_type = true;
 250         tex->width0 = new_width;
 251         tex->height0 = new_height;
 252         tex->format = new_format;
 253
 254 }
 255
 256 static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
 257                                          unsigned level,
 258                                          struct texture_orig_info *orig)
 259 {
 260         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 261         rtex->force_int_type = false;
 262
 263         tex->format = orig->format;
 264         tex->width0 = orig->width0;
 265         tex->height0 = orig->height0;
 266 }
 267
 268 static void r600_resource_copy_region(struct pipe_context *ctx,
 269                                       struct pipe_resource *dst,
 270                                       unsigned dst_level,
 271                                       unsigned dstx, unsigned dsty, unsigned dstz,
 272                                       struct pipe_resource *src,
 273                                       unsigned src_level,
 274                                       const struct pipe_box *src_box)
 275 {
 276         struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
 277         struct texture_orig_info orig_info[2];
 278         boolean restore_orig[2];
 279
 280         /* Fallback for buffers. */
 281         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 282                 util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 283                                           src, src_level, src_box);
 284                 return;
 285         }
 286
 287         if (rsrc->depth && !rsrc->is_flushing_texture)
 288                 r600_texture_depth_flush(ctx, src, FALSE);
 289
 290         restore_orig[0] = restore_orig[1] = FALSE;
 291
 292         if (util_format_is_compressed(src->format)) {
 293                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 294                 restore_orig[0] = TRUE;
 295         }
 296
 297         if (util_format_is_compressed(dst->format)) {
 298                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 299                 restore_orig[1] = TRUE;
 300                 /* translate the dst box as well */
 301                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 302                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 303         }
 304
 305         r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 306                             src, src_level, src_box);
 307
 308         if (restore_orig[0])
 309                 r600_reset_blittable_to_compressed(src, src_level, &orig_info[0]);
 310
 311         if (restore_orig[1])
 312                 r600_reset_blittable_to_compressed(dst, dst_level, &orig_info[1]);
 313 }
 314
 315 void r600_init_blit_functions(struct r600_pipe_context *rctx)
 316 {
 317         rctx->context.clear = r600_clear;
 318         rctx->context.clear_render_target = r600_clear_render_target;
 319         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 320         rctx->context.resource_copy_region = r600_resource_copy_region;
 321 }
 322
 323 void r600_blit_push_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 324 {
 325         struct pipe_box sbox;
 326
 327         sbox.x = sbox.y = sbox.z = 0;
 328         sbox.width = texture->resource.b.b.b.width0;
 329         sbox.height = texture->resource.b.b.b.height0;
 330         /* XXX that might be wrong */
 331         sbox.depth = 1;
 332
 333         r600_hw_copy_region(ctx, (struct pipe_resource *)texture, 0,
 334                             0, 0, 0,
 335                             (struct pipe_resource *)texture->flushed_depth_texture, 0,
 336                             &sbox);
 337 }