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
  36
  37 /**
  38  * Adjust x, y, width, height to lie on tile bounds.
  39  */
  40 static void
  41 adjust_to_tile_bounds(unsigned x, unsigned y, unsigned width, unsigned height,
  42                       unsigned *x_tile, unsigned *y_tile,
  43                       unsigned *w_tile, unsigned *h_tile)
  44 {
  45    *x_tile = x & ~(TILE_SIZE - 1);
  46    *y_tile = y & ~(TILE_SIZE - 1);
  47    *w_tile = ((x + width + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *x_tile;
  48    *h_tile = ((y + height + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *y_tile;
  49 }
  50
  51
  52
  53 static void
  54 lp_resource_copy(struct pipe_context *pipe,
  55                  struct pipe_resource *dst, unsigned dst_level,
  56                  unsigned dstx, unsigned dsty, unsigned dstz,
  57                  struct pipe_resource *src, unsigned src_level,
  58                  const struct pipe_box *src_box)
  59 {
  60    struct llvmpipe_resource *src_tex = llvmpipe_resource(src);
  61    struct llvmpipe_resource *dst_tex = llvmpipe_resource(dst);
  62    const enum pipe_format format = src_tex->base.format;
  63    unsigned width = src_box->width;
  64    unsigned height = src_box->height;
  65    unsigned depth = src_box->depth;
  66    unsigned z;
  67
  68    llvmpipe_flush_resource(pipe,
  69                            dst, dst_level,
  70                            FALSE, /* read_only */
  71                            TRUE, /* cpu_access */
  72                            FALSE, /* do_not_block */
  73                            "blit dest");
  74
  75    llvmpipe_flush_resource(pipe,
  76                            src, src_level,
  77                            TRUE, /* read_only */
  78                            TRUE, /* cpu_access */
  79                            FALSE, /* do_not_block */
  80                            "blit src");
  81
  82    /* Fallback for buffers. */
  83    if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
  84       util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
  85                                 src, src_level, src_box);
  86       return;
  87    }
  88
  89    /*
  90    printf("surface copy from %u lvl %u to %u lvl %u: %u,%u,%u to %u,%u,%u %u x %u x %u\n",
  91           src_tex->id, src_level, dst_tex->id, dst_level,
  92           src_box->x, src_box->y, src_box->z, dstx, dsty, dstz,
  93           src_box->width, src_box->height, src_box->depth);
  94    */
  95
  96    for (z = 0; z < src_box->depth; z++){
  97
  98       /* set src tiles to linear layout */
  99       {
 100          unsigned tx, ty, tw, th;
 101          unsigned x, y;
 102
 103          adjust_to_tile_bounds(src_box->x, src_box->y, width, height,
 104                                &tx, &ty, &tw, &th);
 105
 106          for (y = 0; y < th; y += TILE_SIZE) {
 107             for (x = 0; x < tw; x += TILE_SIZE) {
 108                (void) llvmpipe_get_texture_tile_linear(src_tex,
 109                                                        src_box->z + z, src_level,
 110                                                        LP_TEX_USAGE_READ,
 111                                                        tx + x, ty + y);
 112             }
 113          }
 114       }
 115
 116       /* set dst tiles to linear layout */
 117       {
 118          unsigned tx, ty, tw, th;
 119          unsigned x, y;
 120          enum lp_texture_usage usage;
 121
 122          adjust_to_tile_bounds(dstx, dsty, width, height, &tx, &ty, &tw, &th);
 123
 124          for (y = 0; y < th; y += TILE_SIZE) {
 125             boolean contained_y = ty + y >= dsty &&
 126                                   ty + y + TILE_SIZE <= dsty + height ?
 127                                   TRUE : FALSE;
 128
 129             for (x = 0; x < tw; x += TILE_SIZE) {
 130                boolean contained_x = tx + x >= dstx &&
 131                                      tx + x + TILE_SIZE <= dstx + width ?
 132                                      TRUE : FALSE;
 133
 134                /*
 135                 * Set the usage mode to WRITE_ALL for the tiles which are
 136                 * completely contained by the dest rectangle.
 137                 */
 138                if (contained_y && contained_x)
 139                   usage = LP_TEX_USAGE_WRITE_ALL;
 140                else
 141                   usage = LP_TEX_USAGE_READ_WRITE;
 142
 143                (void) llvmpipe_get_texture_tile_linear(dst_tex,
 144                                                        dstz + z, dst_level,
 145                                                        usage,
 146                                                        tx + x, ty + y);
 147             }
 148          }
 149       }
 150    }
 151
 152    /* copy */
 153    {
 154       const ubyte *src_linear_ptr
 155          = llvmpipe_get_texture_image_address(src_tex, src_box->z,
 156                                               src_level);
 157       ubyte *dst_linear_ptr
 158          = llvmpipe_get_texture_image_address(dst_tex, dstz,
 159                                               dst_level);
 160
 161       if (dst_linear_ptr && src_linear_ptr) {
 162          util_copy_box(dst_linear_ptr, format,
 163                        llvmpipe_resource_stride(&dst_tex->base, dst_level),
 164                        dst_tex->img_stride[dst_level],
 165                        dstx, dsty, 0,
 166                        width, height, depth,
 167                        src_linear_ptr,
 168                        llvmpipe_resource_stride(&src_tex->base, src_level),
 169                        src_tex->img_stride[src_level],
 170                        src_box->x, src_box->y, 0);
 171       }
 172    }
 173 }
 174
 175
 176 static void lp_blit(struct pipe_context *pipe,
 177                     const struct pipe_blit_info *blit_info)
 178 {
 179    struct llvmpipe_context *lp = llvmpipe_context(pipe);
 180    struct pipe_blit_info info = *blit_info;
 181
 182    if (info.src.resource->nr_samples > 1 &&
 183        info.dst.resource->nr_samples <= 1 &&
 184        !util_format_is_depth_or_stencil(info.src.resource->format) &&
 185        !util_format_is_pure_integer(info.src.resource->format)) {
 186       debug_printf("llvmpipe: color resolve unimplemented\n");
 187       return;
 188    }
 189
 190    if (util_try_blit_via_copy_region(pipe, &info)) {
 191       return; /* done */
 192    }
 193
 194    if (info.mask & PIPE_MASK_S) {
 195       debug_printf("llvmpipe: cannot blit stencil, skipping\n");
 196       info.mask &= ~PIPE_MASK_S;
 197    }
 198
 199    if (!util_blitter_is_blit_supported(lp->blitter, &info)) {
 200       debug_printf("llvmpipe: blit unsupported %s -> %s\n",
 201                    util_format_short_name(info.src.resource->format),
 202                    util_format_short_name(info.dst.resource->format));
 203       return;
 204    }
 205
 206    /* XXX turn off occlusion and streamout queries */
 207
 208    util_blitter_save_vertex_buffer_slot(lp->blitter, lp->vertex_buffer);
 209    util_blitter_save_vertex_elements(lp->blitter, (void*)lp->velems);
 210    util_blitter_save_vertex_shader(lp->blitter, (void*)lp->vs);
 211    util_blitter_save_geometry_shader(lp->blitter, (void*)lp->gs);
 212    util_blitter_save_so_targets(lp->blitter, lp->num_so_targets,
 213                                 (struct pipe_stream_output_target**)lp->so_targets);
 214    util_blitter_save_rasterizer(lp->blitter, (void*)lp->rasterizer);
 215    util_blitter_save_viewport(lp->blitter, &lp->viewports[0]);
 216    util_blitter_save_scissor(lp->blitter, &lp->scissors[0]);
 217    util_blitter_save_fragment_shader(lp->blitter, lp->fs);
 218    util_blitter_save_blend(lp->blitter, (void*)lp->blend);
 219    util_blitter_save_depth_stencil_alpha(lp->blitter, (void*)lp->depth_stencil);
 220    util_blitter_save_stencil_ref(lp->blitter, &lp->stencil_ref);
 221    /*util_blitter_save_sample_mask(sp->blitter, lp->sample_mask);*/
 222    util_blitter_save_framebuffer(lp->blitter, &lp->framebuffer);
 223    util_blitter_save_fragment_sampler_states(lp->blitter,
 224                      lp->num_samplers[PIPE_SHADER_FRAGMENT],
 225                      (void**)lp->samplers[PIPE_SHADER_FRAGMENT]);
 226    util_blitter_save_fragment_sampler_views(lp->blitter,
 227                      lp->num_sampler_views[PIPE_SHADER_FRAGMENT],
 228                      lp->sampler_views[PIPE_SHADER_FRAGMENT]);
 229    util_blitter_save_render_condition(lp->blitter, lp->render_cond_query,
 230                                       lp->render_cond_mode);
 231    util_blitter_blit(lp->blitter, &info);
 232 }
 233
 234
 235 static struct pipe_surface *
 236 llvmpipe_create_surface(struct pipe_context *pipe,
 237                         struct pipe_resource *pt,
 238                         const struct pipe_surface *surf_tmpl)
 239 {
 240    struct pipe_surface *ps;
 241
 242    if (!(pt->bind & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET)))
 243       debug_printf("Illegal surface creation without bind flag\n");
 244
 245    ps = CALLOC_STRUCT(pipe_surface);
 246    if (ps) {
 247       pipe_reference_init(&ps->reference, 1);
 248       pipe_resource_reference(&ps->texture, pt);
 249       ps->context = pipe;
 250       ps->format = surf_tmpl->format;
 251       if (llvmpipe_resource_is_texture(pt)) {
 252          assert(surf_tmpl->u.tex.level <= pt->last_level);
 253          assert(surf_tmpl->u.tex.first_layer <= surf_tmpl->u.tex.last_layer);
 254          ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 255          ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 256          ps->u.tex.level = surf_tmpl->u.tex.level;
 257          ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 258          ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 259       }
 260       else {
 261          /* setting width as number of elements should get us correct renderbuffer width */
 262          ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
 263          ps->height = pt->height0;
 264          ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
 265          ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
 266          assert(ps->u.buf.first_element <= ps->u.buf.last_element);
 267          assert(util_format_get_blocksize(surf_tmpl->format) *
 268                 (ps->u.buf.last_element + 1) <= pt->width0);
 269       }
 270    }
 271    return ps;
 272 }
 273
 274
 275 static void
 276 llvmpipe_surface_destroy(struct pipe_context *pipe,
 277                          struct pipe_surface *surf)
 278 {
 279    /* Effectively do the texture_update work here - if texture images
 280     * needed post-processing to put them into hardware layout, this is
 281     * where it would happen.  For llvmpipe, nothing to do.
 282     */
 283    assert(surf->texture);
 284    pipe_resource_reference(&surf->texture, NULL);
 285    FREE(surf);
 286 }
 287
 288
 289 void
 290 llvmpipe_init_surface_functions(struct llvmpipe_context *lp)
 291 {
 292    lp->pipe.clear_render_target = util_clear_render_target;
 293    lp->pipe.clear_depth_stencil = util_clear_depth_stencil;
 294    lp->pipe.create_surface = llvmpipe_create_surface;
 295    lp->pipe.surface_destroy = llvmpipe_surface_destroy;
 296    /* These two are not actually functions dealing with surfaces */
 297    lp->pipe.resource_copy_region = lp_resource_copy;
 298    lp->pipe.blit = lp_blit;
 299 }