src/gallium/drivers/llvmpipe/lp_surface.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   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 VMWARE 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 static void
  39 lp_resource_copy(struct pipe_context *pipe,
  40                  struct pipe_resource *dst, unsigned dst_level,
  41                  unsigned dstx, unsigned dsty, unsigned dstz,
  42                  struct pipe_resource *src, unsigned src_level,
  43                  const struct pipe_box *src_box)
  44 {
  45    struct llvmpipe_resource *src_tex = llvmpipe_resource(src);
  46    struct llvmpipe_resource *dst_tex = llvmpipe_resource(dst);
  47    const enum pipe_format format = src_tex->base.format;
  48    unsigned width = src_box->width;
  49    unsigned height = src_box->height;
  50    unsigned depth = src_box->depth;
  51
  52    llvmpipe_flush_resource(pipe,
  53                            dst, dst_level,
  54                            FALSE, /* read_only */
  55                            TRUE, /* cpu_access */
  56                            FALSE, /* do_not_block */
  57                            "blit dest");
  58
  59    llvmpipe_flush_resource(pipe,
  60                            src, src_level,
  61                            TRUE, /* read_only */
  62                            TRUE, /* cpu_access */
  63                            FALSE, /* do_not_block */
  64                            "blit src");
  65
  66    /* Fallback for buffers. */
  67    if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
  68       util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
  69                                 src, src_level, src_box);
  70       return;
  71    }
  72
  73    /*
  74    printf("surface copy from %u lvl %u to %u lvl %u: %u,%u,%u to %u,%u,%u %u x %u x %u\n",
  75           src_tex->id, src_level, dst_tex->id, dst_level,
  76           src_box->x, src_box->y, src_box->z, dstx, dsty, dstz,
  77           src_box->width, src_box->height, src_box->depth);
  78    */
  79
  80    /* make sure display target resources (which cannot have levels/layers) are mapped */
  81    if (src_tex->dt)
  82       (void) llvmpipe_resource_map(src, src_level, 0, LP_TEX_USAGE_READ);
  83    if (dst_tex->dt)
  84       /*
  85        * Could set this to WRITE_ALL if complete dst is covered but it gets
  86        * ignored anyway.
  87        */
  88       (void) llvmpipe_resource_map(dst, dst_level, 0, LP_TEX_USAGE_READ_WRITE);
  89
  90
  91    /* copy */
  92    {
  93       const ubyte *src_linear_ptr
  94          = llvmpipe_get_texture_image_address(src_tex, src_box->z,
  95                                               src_level);
  96       ubyte *dst_linear_ptr
  97          = llvmpipe_get_texture_image_address(dst_tex, dstz,
  98                                               dst_level);
  99
 100       if (dst_linear_ptr && src_linear_ptr) {
 101          util_copy_box(dst_linear_ptr, format,
 102                        llvmpipe_resource_stride(&dst_tex->base, dst_level),
 103                        dst_tex->img_stride[dst_level],
 104                        dstx, dsty, 0,
 105                        width, height, depth,
 106                        src_linear_ptr,
 107                        llvmpipe_resource_stride(&src_tex->base, src_level),
 108                        src_tex->img_stride[src_level],
 109                        src_box->x, src_box->y, 0);
 110       }
 111    }
 112
 113    if (src_tex->dt)
 114       llvmpipe_resource_unmap(src, 0, 0);
 115    if (dst_tex->dt)
 116       llvmpipe_resource_unmap(dst, 0, 0);
 117
 118 }
 119
 120
 121 static void lp_blit(struct pipe_context *pipe,
 122                     const struct pipe_blit_info *blit_info)
 123 {
 124    struct llvmpipe_context *lp = llvmpipe_context(pipe);
 125    struct pipe_blit_info info = *blit_info;
 126
 127    if (blit_info->render_condition_enable && !llvmpipe_check_render_cond(lp))
 128       return;
 129
 130    if (info.src.resource->nr_samples > 1 &&
 131        info.dst.resource->nr_samples <= 1 &&
 132        !util_format_is_depth_or_stencil(info.src.resource->format) &&
 133        !util_format_is_pure_integer(info.src.resource->format)) {
 134       debug_printf("llvmpipe: color resolve unimplemented\n");
 135       return;
 136    }
 137
 138    if (util_try_blit_via_copy_region(pipe, &info)) {
 139       return; /* done */
 140    }
 141
 142    if (info.mask & PIPE_MASK_S) {
 143       debug_printf("llvmpipe: cannot blit stencil, skipping\n");
 144       info.mask &= ~PIPE_MASK_S;
 145    }
 146
 147    if (!util_blitter_is_blit_supported(lp->blitter, &info)) {
 148       debug_printf("llvmpipe: blit unsupported %s -> %s\n",
 149                    util_format_short_name(info.src.resource->format),
 150                    util_format_short_name(info.dst.resource->format));
 151       return;
 152    }
 153
 154    /* XXX turn off occlusion and streamout queries */
 155
 156    util_blitter_save_vertex_buffer_slot(lp->blitter, lp->vertex_buffer);
 157    util_blitter_save_vertex_elements(lp->blitter, (void*)lp->velems);
 158    util_blitter_save_vertex_shader(lp->blitter, (void*)lp->vs);
 159    util_blitter_save_geometry_shader(lp->blitter, (void*)lp->gs);
 160    util_blitter_save_so_targets(lp->blitter, lp->num_so_targets,
 161                                 (struct pipe_stream_output_target**)lp->so_targets);
 162    util_blitter_save_rasterizer(lp->blitter, (void*)lp->rasterizer);
 163    util_blitter_save_viewport(lp->blitter, &lp->viewports[0]);
 164    util_blitter_save_scissor(lp->blitter, &lp->scissors[0]);
 165    util_blitter_save_fragment_shader(lp->blitter, lp->fs);
 166    util_blitter_save_blend(lp->blitter, (void*)lp->blend);
 167    util_blitter_save_depth_stencil_alpha(lp->blitter, (void*)lp->depth_stencil);
 168    util_blitter_save_stencil_ref(lp->blitter, &lp->stencil_ref);
 169    /*util_blitter_save_sample_mask(sp->blitter, lp->sample_mask);*/
 170    util_blitter_save_framebuffer(lp->blitter, &lp->framebuffer);
 171    util_blitter_save_fragment_sampler_states(lp->blitter,
 172                      lp->num_samplers[PIPE_SHADER_FRAGMENT],
 173                      (void**)lp->samplers[PIPE_SHADER_FRAGMENT]);
 174    util_blitter_save_fragment_sampler_views(lp->blitter,
 175                      lp->num_sampler_views[PIPE_SHADER_FRAGMENT],
 176                      lp->sampler_views[PIPE_SHADER_FRAGMENT]);
 177    util_blitter_save_render_condition(lp->blitter, lp->render_cond_query,
 178                                       lp->render_cond_cond, lp->render_cond_mode);
 179    util_blitter_blit(lp->blitter, &info);
 180 }
 181
 182
 183 static void
 184 lp_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource)
 185 {
 186 }
 187
 188
 189 static struct pipe_surface *
 190 llvmpipe_create_surface(struct pipe_context *pipe,
 191                         struct pipe_resource *pt,
 192                         const struct pipe_surface *surf_tmpl)
 193 {
 194    struct pipe_surface *ps;
 195
 196    if (!(pt->bind & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET)))
 197       debug_printf("Illegal surface creation without bind flag\n");
 198
 199    ps = CALLOC_STRUCT(pipe_surface);
 200    if (ps) {
 201       pipe_reference_init(&ps->reference, 1);
 202       pipe_resource_reference(&ps->texture, pt);
 203       ps->context = pipe;
 204       ps->format = surf_tmpl->format;
 205       if (llvmpipe_resource_is_texture(pt)) {
 206          assert(surf_tmpl->u.tex.level <= pt->last_level);
 207          assert(surf_tmpl->u.tex.first_layer <= surf_tmpl->u.tex.last_layer);
 208          ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 209          ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 210          ps->u.tex.level = surf_tmpl->u.tex.level;
 211          ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 212          ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 213       }
 214       else {
 215          /* setting width as number of elements should get us correct renderbuffer width */
 216          ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
 217          ps->height = pt->height0;
 218          ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
 219          ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
 220          assert(ps->u.buf.first_element <= ps->u.buf.last_element);
 221          assert(util_format_get_blocksize(surf_tmpl->format) *
 222                 (ps->u.buf.last_element + 1) <= pt->width0);
 223       }
 224    }
 225    return ps;
 226 }
 227
 228
 229 static void
 230 llvmpipe_surface_destroy(struct pipe_context *pipe,
 231                          struct pipe_surface *surf)
 232 {
 233    /* Effectively do the texture_update work here - if texture images
 234     * needed post-processing to put them into hardware layout, this is
 235     * where it would happen.  For llvmpipe, nothing to do.
 236     */
 237    assert(surf->texture);
 238    pipe_resource_reference(&surf->texture, NULL);
 239    FREE(surf);
 240 }
 241
 242
 243 static void
 244 llvmpipe_clear_render_target(struct pipe_context *pipe,
 245                              struct pipe_surface *dst,
 246                              const union pipe_color_union *color,
 247                              unsigned dstx, unsigned dsty,
 248                              unsigned width, unsigned height)
 249 {
 250    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 251
 252    if (!llvmpipe_check_render_cond(llvmpipe))
 253       return;
 254
 255    util_clear_render_target(pipe, dst, color,
 256                             dstx, dsty, width, height);
 257 }
 258
 259
 260 static void
 261 llvmpipe_clear_depth_stencil(struct pipe_context *pipe,
 262                              struct pipe_surface *dst,
 263                              unsigned clear_flags,
 264                              double depth,
 265                              unsigned stencil,
 266                              unsigned dstx, unsigned dsty,
 267                              unsigned width, unsigned height)
 268 {
 269    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 270
 271    if (!llvmpipe_check_render_cond(llvmpipe))
 272       return;
 273
 274    util_clear_depth_stencil(pipe, dst, clear_flags,
 275                             depth, stencil,
 276                             dstx, dsty, width, height);
 277 }
 278
 279
 280 void
 281 llvmpipe_init_surface_functions(struct llvmpipe_context *lp)
 282 {
 283    lp->pipe.clear_render_target = llvmpipe_clear_render_target;
 284    lp->pipe.clear_depth_stencil = llvmpipe_clear_depth_stencil;
 285    lp->pipe.create_surface = llvmpipe_create_surface;
 286    lp->pipe.surface_destroy = llvmpipe_surface_destroy;
 287    /* These two are not actually functions dealing with surfaces */
 288    lp->pipe.resource_copy_region = lp_resource_copy;
 289    lp->pipe.blit = lp_blit;
 290    lp->pipe.flush_resource = lp_flush_resource;
 291 }