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    llvmpipe_flush_resource(pipe,
  46                            dst, dst_level,
  47                            FALSE, /* read_only */
  48                            TRUE, /* cpu_access */
  49                            FALSE, /* do_not_block */
  50                            "blit dest");
  51
  52    llvmpipe_flush_resource(pipe,
  53                            src, src_level,
  54                            TRUE, /* read_only */
  55                            TRUE, /* cpu_access */
  56                            FALSE, /* do_not_block */
  57                            "blit src");
  58
  59    util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
  60                              src, src_level, src_box);
  61 }
  62
  63
  64 static void lp_blit(struct pipe_context *pipe,
  65                     const struct pipe_blit_info *blit_info)
  66 {
  67    struct llvmpipe_context *lp = llvmpipe_context(pipe);
  68    struct pipe_blit_info info = *blit_info;
  69
  70    if (blit_info->render_condition_enable && !llvmpipe_check_render_cond(lp))
  71       return;
  72
  73    if (info.src.resource->nr_samples > 1 &&
  74        info.dst.resource->nr_samples <= 1 &&
  75        !util_format_is_depth_or_stencil(info.src.resource->format) &&
  76        !util_format_is_pure_integer(info.src.resource->format)) {
  77       debug_printf("llvmpipe: color resolve unimplemented\n");
  78       return;
  79    }
  80
  81    if (util_try_blit_via_copy_region(pipe, &info)) {
  82       return; /* done */
  83    }
  84
  85    if (!util_blitter_is_blit_supported(lp->blitter, &info)) {
  86       debug_printf("llvmpipe: blit unsupported %s -> %s\n",
  87                    util_format_short_name(info.src.resource->format),
  88                    util_format_short_name(info.dst.resource->format));
  89       return;
  90    }
  91
  92    /* XXX turn off occlusion and streamout queries */
  93
  94    util_blitter_save_vertex_buffer_slot(lp->blitter, lp->vertex_buffer);
  95    util_blitter_save_vertex_elements(lp->blitter, (void*)lp->velems);
  96    util_blitter_save_vertex_shader(lp->blitter, (void*)lp->vs);
  97    util_blitter_save_geometry_shader(lp->blitter, (void*)lp->gs);
  98    util_blitter_save_so_targets(lp->blitter, lp->num_so_targets,
  99                                 (struct pipe_stream_output_target**)lp->so_targets);
 100    util_blitter_save_rasterizer(lp->blitter, (void*)lp->rasterizer);
 101    util_blitter_save_viewport(lp->blitter, &lp->viewports[0]);
 102    util_blitter_save_scissor(lp->blitter, &lp->scissors[0]);
 103    util_blitter_save_fragment_shader(lp->blitter, lp->fs);
 104    util_blitter_save_blend(lp->blitter, (void*)lp->blend);
 105    util_blitter_save_depth_stencil_alpha(lp->blitter, (void*)lp->depth_stencil);
 106    util_blitter_save_stencil_ref(lp->blitter, &lp->stencil_ref);
 107    /*util_blitter_save_sample_mask(sp->blitter, lp->sample_mask);*/
 108    util_blitter_save_framebuffer(lp->blitter, &lp->framebuffer);
 109    util_blitter_save_fragment_sampler_states(lp->blitter,
 110                      lp->num_samplers[PIPE_SHADER_FRAGMENT],
 111                      (void**)lp->samplers[PIPE_SHADER_FRAGMENT]);
 112    util_blitter_save_fragment_sampler_views(lp->blitter,
 113                      lp->num_sampler_views[PIPE_SHADER_FRAGMENT],
 114                      lp->sampler_views[PIPE_SHADER_FRAGMENT]);
 115    util_blitter_save_render_condition(lp->blitter, lp->render_cond_query,
 116                                       lp->render_cond_cond, lp->render_cond_mode);
 117    util_blitter_blit(lp->blitter, &info);
 118 }
 119
 120
 121 static void
 122 lp_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource)
 123 {
 124 }
 125
 126
 127 static struct pipe_surface *
 128 llvmpipe_create_surface(struct pipe_context *pipe,
 129                         struct pipe_resource *pt,
 130                         const struct pipe_surface *surf_tmpl)
 131 {
 132    struct pipe_surface *ps;
 133
 134    if (!(pt->bind & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET)))
 135       debug_printf("Illegal surface creation without bind flag\n");
 136
 137    ps = CALLOC_STRUCT(pipe_surface);
 138    if (ps) {
 139       pipe_reference_init(&ps->reference, 1);
 140       pipe_resource_reference(&ps->texture, pt);
 141       ps->context = pipe;
 142       ps->format = surf_tmpl->format;
 143       if (llvmpipe_resource_is_texture(pt)) {
 144          assert(surf_tmpl->u.tex.level <= pt->last_level);
 145          assert(surf_tmpl->u.tex.first_layer <= surf_tmpl->u.tex.last_layer);
 146          ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 147          ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 148          ps->u.tex.level = surf_tmpl->u.tex.level;
 149          ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 150          ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 151       }
 152       else {
 153          /* setting width as number of elements should get us correct renderbuffer width */
 154          ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
 155          ps->height = pt->height0;
 156          ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
 157          ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
 158          assert(ps->u.buf.first_element <= ps->u.buf.last_element);
 159          assert(util_format_get_blocksize(surf_tmpl->format) *
 160                 (ps->u.buf.last_element + 1) <= pt->width0);
 161       }
 162    }
 163    return ps;
 164 }
 165
 166
 167 static void
 168 llvmpipe_surface_destroy(struct pipe_context *pipe,
 169                          struct pipe_surface *surf)
 170 {
 171    /* Effectively do the texture_update work here - if texture images
 172     * needed post-processing to put them into hardware layout, this is
 173     * where it would happen.  For llvmpipe, nothing to do.
 174     */
 175    assert(surf->texture);
 176    pipe_resource_reference(&surf->texture, NULL);
 177    FREE(surf);
 178 }
 179
 180
 181 static void
 182 llvmpipe_clear_render_target(struct pipe_context *pipe,
 183                              struct pipe_surface *dst,
 184                              const union pipe_color_union *color,
 185                              unsigned dstx, unsigned dsty,
 186                              unsigned width, unsigned height)
 187 {
 188    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 189
 190    if (!llvmpipe_check_render_cond(llvmpipe))
 191       return;
 192
 193    util_clear_render_target(pipe, dst, color,
 194                             dstx, dsty, width, height);
 195 }
 196
 197
 198 static void
 199 llvmpipe_clear_depth_stencil(struct pipe_context *pipe,
 200                              struct pipe_surface *dst,
 201                              unsigned clear_flags,
 202                              double depth,
 203                              unsigned stencil,
 204                              unsigned dstx, unsigned dsty,
 205                              unsigned width, unsigned height)
 206 {
 207    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 208
 209    if (!llvmpipe_check_render_cond(llvmpipe))
 210       return;
 211
 212    util_clear_depth_stencil(pipe, dst, clear_flags,
 213                             depth, stencil,
 214                             dstx, dsty, width, height);
 215 }
 216
 217
 218 void
 219 llvmpipe_init_surface_functions(struct llvmpipe_context *lp)
 220 {
 221    lp->pipe.clear_render_target = llvmpipe_clear_render_target;
 222    lp->pipe.clear_depth_stencil = llvmpipe_clear_depth_stencil;
 223    lp->pipe.create_surface = llvmpipe_create_surface;
 224    lp->pipe.surface_destroy = llvmpipe_surface_destroy;
 225    /* These two are not actually functions dealing with surfaces */
 226    lp->pipe.resource_copy_region = lp_resource_copy;
 227    lp->pipe.blit = lp_blit;
 228    lp->pipe.flush_resource = lp_flush_resource;
 229 }