src/gallium/drivers/llvmpipe/lp_surface.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "util/u_rect.h"
  29 #include "util/u_surface.h"
  30 #include "lp_context.h"
  31 #include "lp_flush.h"
  32 #include "lp_limits.h"
  33 #include "lp_surface.h"
  34 #include "lp_texture.h"
  35 #include "lp_query.h"
  36
  37
  38 /**
  39  * Adjust x, y, width, height to lie on tile bounds.
  40  */
  41 static void
  42 adjust_to_tile_bounds(unsigned x, unsigned y, unsigned width, unsigned height,
  43                       unsigned *x_tile, unsigned *y_tile,
  44                       unsigned *w_tile, unsigned *h_tile)
  45 {
  46    *x_tile = x & ~(TILE_SIZE - 1);
  47    *y_tile = y & ~(TILE_SIZE - 1);
  48    *w_tile = ((x + width + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *x_tile;
  49    *h_tile = ((y + height + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *y_tile;
  50 }
  51
  52
  53
  54 static void
  55 lp_resource_copy(struct pipe_context *pipe,
  56                  struct pipe_resource *dst, unsigned dst_level,
  57                  unsigned dstx, unsigned dsty, unsigned dstz,
  58                  struct pipe_resource *src, unsigned src_level,
  59                  const struct pipe_box *src_box)
  60 {
  61    struct llvmpipe_resource *src_tex = llvmpipe_resource(src);
  62    struct llvmpipe_resource *dst_tex = llvmpipe_resource(dst);
  63    const enum pipe_format format = src_tex->base.format;
  64    unsigned width = src_box->width;
  65    unsigned height = src_box->height;
  66    unsigned depth = src_box->depth;
  67    unsigned z;
  68
  69    llvmpipe_flush_resource(pipe,
  70                            dst, dst_level,
  71                            FALSE, /* read_only */
  72                            TRUE, /* cpu_access */
  73                            FALSE, /* do_not_block */
  74                            "blit dest");
  75
  76    llvmpipe_flush_resource(pipe,
  77                            src, src_level,
  78                            TRUE, /* read_only */
  79                            TRUE, /* cpu_access */
  80                            FALSE, /* do_not_block */
  81                            "blit src");
  82
  83    /* Fallback for buffers. */
  84    if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
  85       util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
  86                                 src, src_level, src_box);
  87       return;
  88    }
  89
  90    /*
  91    printf("surface copy from %u lvl %u to %u lvl %u: %u,%u,%u to %u,%u,%u %u x %u x %u\n",
  92           src_tex->id, src_level, dst_tex->id, dst_level,
  93           src_box->x, src_box->y, src_box->z, dstx, dsty, dstz,
  94           src_box->width, src_box->height, src_box->depth);
  95    */
  96
  97    for (z = 0; z < src_box->depth; z++){
  98
  99       /* set src tiles to linear layout */
 100       {
 101          unsigned tx, ty, tw, th;
 102          unsigned x, y;
 103
 104          adjust_to_tile_bounds(src_box->x, src_box->y, width, height,
 105                                &tx, &ty, &tw, &th);
 106
 107          for (y = 0; y < th; y += TILE_SIZE) {
 108             for (x = 0; x < tw; x += TILE_SIZE) {
 109                (void) llvmpipe_get_texture_tile_linear(src_tex,
 110                                                        src_box->z + z, src_level,
 111                                                        LP_TEX_USAGE_READ,
 112                                                        tx + x, ty + y);
 113             }
 114          }
 115       }
 116
 117       /* set dst tiles to linear layout */
 118       {
 119          unsigned tx, ty, tw, th;
 120          unsigned x, y;
 121          enum lp_texture_usage usage;
 122
 123          adjust_to_tile_bounds(dstx, dsty, width, height, &tx, &ty, &tw, &th);
 124
 125          for (y = 0; y < th; y += TILE_SIZE) {
 126             boolean contained_y = ty + y >= dsty &&
 127                                   ty + y + TILE_SIZE <= dsty + height ?
 128                                   TRUE : FALSE;
 129
 130             for (x = 0; x < tw; x += TILE_SIZE) {
 131                boolean contained_x = tx + x >= dstx &&
 132                                      tx + x + TILE_SIZE <= dstx + width ?
 133                                      TRUE : FALSE;
 134
 135                /*
 136                 * Set the usage mode to WRITE_ALL for the tiles which are
 137                 * completely contained by the dest rectangle.
 138                 */
 139                if (contained_y && contained_x)
 140                   usage = LP_TEX_USAGE_WRITE_ALL;
 141                else
 142                   usage = LP_TEX_USAGE_READ_WRITE;
 143
 144                (void) llvmpipe_get_texture_tile_linear(dst_tex,
 145                                                        dstz + z, dst_level,
 146                                                        usage,
 147                                                        tx + x, ty + y);
 148             }
 149          }
 150       }
 151    }
 152
 153    /* copy */
 154    {
 155       const ubyte *src_linear_ptr
 156          = llvmpipe_get_texture_image_address(src_tex, src_box->z,
 157                                               src_level);
 158       ubyte *dst_linear_ptr
 159          = llvmpipe_get_texture_image_address(dst_tex, dstz,
 160                                               dst_level);
 161
 162       if (dst_linear_ptr && src_linear_ptr) {
 163          util_copy_box(dst_linear_ptr, format,
 164                        llvmpipe_resource_stride(&dst_tex->base, dst_level),
 165                        dst_tex->img_stride[dst_level],
 166                        dstx, dsty, 0,
 167                        width, height, depth,
 168                        src_linear_ptr,
 169                        llvmpipe_resource_stride(&src_tex->base, src_level),
 170                        src_tex->img_stride[src_level],
 171                        src_box->x, src_box->y, 0);
 172       }
 173    }
 174 }
 175
 176
 177 static void lp_blit(struct pipe_context *pipe,
 178                     const struct pipe_blit_info *blit_info)
 179 {
 180    struct llvmpipe_context *lp = llvmpipe_context(pipe);
 181    struct pipe_blit_info info = *blit_info;
 182
 183    if (info.src.resource->nr_samples > 1 &&
 184        info.dst.resource->nr_samples <= 1 &&
 185        !util_format_is_depth_or_stencil(info.src.resource->format) &&
 186        !util_format_is_pure_integer(info.src.resource->format)) {
 187       debug_printf("llvmpipe: color resolve unimplemented\n");
 188       return;
 189    }
 190
 191    if (util_try_blit_via_copy_region(pipe, &info)) {
 192       return; /* done */
 193    }
 194
 195    if (info.mask & PIPE_MASK_S) {
 196       debug_printf("llvmpipe: cannot blit stencil, skipping\n");
 197       info.mask &= ~PIPE_MASK_S;
 198    }
 199
 200    if (!util_blitter_is_blit_supported(lp->blitter, &info)) {
 201       debug_printf("llvmpipe: blit unsupported %s -> %s\n",
 202                    util_format_short_name(info.src.resource->format),
 203                    util_format_short_name(info.dst.resource->format));
 204       return;
 205    }
 206
 207    /* XXX turn off occlusion and streamout queries */
 208
 209    util_blitter_save_vertex_buffer_slot(lp->blitter, lp->vertex_buffer);
 210    util_blitter_save_vertex_elements(lp->blitter, (void*)lp->velems);
 211    util_blitter_save_vertex_shader(lp->blitter, (void*)lp->vs);
 212    util_blitter_save_geometry_shader(lp->blitter, (void*)lp->gs);
 213    util_blitter_save_so_targets(lp->blitter, lp->num_so_targets,
 214                                 (struct pipe_stream_output_target**)lp->so_targets);
 215    util_blitter_save_rasterizer(lp->blitter, (void*)lp->rasterizer);
 216    util_blitter_save_viewport(lp->blitter, &lp->viewports[0]);
 217    util_blitter_save_scissor(lp->blitter, &lp->scissors[0]);
 218    util_blitter_save_fragment_shader(lp->blitter, lp->fs);
 219    util_blitter_save_blend(lp->blitter, (void*)lp->blend);
 220    util_blitter_save_depth_stencil_alpha(lp->blitter, (void*)lp->depth_stencil);
 221    util_blitter_save_stencil_ref(lp->blitter, &lp->stencil_ref);
 222    /*util_blitter_save_sample_mask(sp->blitter, lp->sample_mask);*/
 223    util_blitter_save_framebuffer(lp->blitter, &lp->framebuffer);
 224    util_blitter_save_fragment_sampler_states(lp->blitter,
 225                      lp->num_samplers[PIPE_SHADER_FRAGMENT],
 226                      (void**)lp->samplers[PIPE_SHADER_FRAGMENT]);
 227    util_blitter_save_fragment_sampler_views(lp->blitter,
 228                      lp->num_sampler_views[PIPE_SHADER_FRAGMENT],
 229                      lp->sampler_views[PIPE_SHADER_FRAGMENT]);
 230    util_blitter_save_render_condition(lp->blitter, lp->render_cond_query,
 231                                       lp->render_cond_cond, lp->render_cond_mode);
 232    util_blitter_blit(lp->blitter, &info);
 233 }
 234
 235
 236 static struct pipe_surface *
 237 llvmpipe_create_surface(struct pipe_context *pipe,
 238                         struct pipe_resource *pt,
 239                         const struct pipe_surface *surf_tmpl)
 240 {
 241    struct pipe_surface *ps;
 242
 243    if (!(pt->bind & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET)))
 244       debug_printf("Illegal surface creation without bind flag\n");
 245
 246    ps = CALLOC_STRUCT(pipe_surface);
 247    if (ps) {
 248       pipe_reference_init(&ps->reference, 1);
 249       pipe_resource_reference(&ps->texture, pt);
 250       ps->context = pipe;
 251       ps->format = surf_tmpl->format;
 252       if (llvmpipe_resource_is_texture(pt)) {
 253          assert(surf_tmpl->u.tex.level <= pt->last_level);
 254          assert(surf_tmpl->u.tex.first_layer <= surf_tmpl->u.tex.last_layer);
 255          ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 256          ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 257          ps->u.tex.level = surf_tmpl->u.tex.level;
 258          ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 259          ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 260       }
 261       else {
 262          /* setting width as number of elements should get us correct renderbuffer width */
 263          ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
 264          ps->height = pt->height0;
 265          ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
 266          ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
 267          assert(ps->u.buf.first_element <= ps->u.buf.last_element);
 268          assert(util_format_get_blocksize(surf_tmpl->format) *
 269                 (ps->u.buf.last_element + 1) <= pt->width0);
 270       }
 271    }
 272    return ps;
 273 }
 274
 275
 276 static void
 277 llvmpipe_surface_destroy(struct pipe_context *pipe,
 278                          struct pipe_surface *surf)
 279 {
 280    /* Effectively do the texture_update work here - if texture images
 281     * needed post-processing to put them into hardware layout, this is
 282     * where it would happen.  For llvmpipe, nothing to do.
 283     */
 284    assert(surf->texture);
 285    pipe_resource_reference(&surf->texture, NULL);
 286    FREE(surf);
 287 }
 288
 289
 290 static void
 291 llvmpipe_clear_render_target(struct pipe_context *pipe,
 292                              struct pipe_surface *dst,
 293                              const union pipe_color_union *color,
 294                              unsigned dstx, unsigned dsty,
 295                              unsigned width, unsigned height)
 296 {
 297    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 298
 299    if (!llvmpipe_check_render_cond(llvmpipe))
 300       return;
 301
 302    util_clear_render_target(pipe, dst, color,
 303                             dstx, dsty, width, height);
 304 }
 305
 306
 307 static void
 308 llvmpipe_clear_depth_stencil(struct pipe_context *pipe,
 309                              struct pipe_surface *dst,
 310                              unsigned clear_flags,
 311                              double depth,
 312                              unsigned stencil,
 313                              unsigned dstx, unsigned dsty,
 314                              unsigned width, unsigned height)
 315 {
 316    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 317
 318    if (!llvmpipe_check_render_cond(llvmpipe))
 319       return;
 320
 321    util_clear_depth_stencil(pipe, dst, clear_flags,
 322                             depth, stencil,
 323                             dstx, dsty, width, height);
 324 }
 325
 326
 327 void
 328 llvmpipe_init_surface_functions(struct llvmpipe_context *lp)
 329 {
 330    lp->pipe.clear_render_target = llvmpipe_clear_render_target;
 331    lp->pipe.clear_depth_stencil = llvmpipe_clear_depth_stencil;
 332    lp->pipe.create_surface = llvmpipe_create_surface;
 333    lp->pipe.surface_destroy = llvmpipe_surface_destroy;
 334    /* These two are not actually functions dealing with surfaces */
 335    lp->pipe.resource_copy_region = lp_resource_copy;
 336    lp->pipe.blit = lp_blit;
 337 }