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, rctx->nvertex_buffers, rctx->vertex_buffer);
  58
  59         if (op & (R600_CLEAR_SURFACE | R600_COPY))
  60                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  61
  62         if (op & R600_COPY) {
  63                 util_blitter_save_fragment_sampler_states(
  64                         rctx->blitter, rctx->ps_samplers.n_samplers,
  65                         (void**)rctx->ps_samplers.samplers);
  66
  67                 util_blitter_save_fragment_sampler_views(
  68                         rctx->blitter, rctx->ps_samplers.n_views,
  69                         (struct pipe_sampler_view**)rctx->ps_samplers.views);
  70         }
  71
  72 }
  73
  74 static void r600_blitter_end(struct pipe_context *ctx)
  75 {
  76         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  77         r600_context_queries_resume(&rctx->ctx);
  78         rctx->blit = false;
  79 }
  80
  81 void r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
  82 {
  83         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  84         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
  85         int level = 0;
  86         float depth = 1.0f;
  87
  88         if (!texture->dirty_db)
  89                 return;
  90
  91         surf_tmpl.format = texture->resource.base.b.format;
  92         surf_tmpl.u.tex.level = level;
  93         surf_tmpl.u.tex.first_layer = 0;
  94         surf_tmpl.u.tex.last_layer = 0;
  95         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
  96
  97         zsurf = ctx->create_surface(ctx, &texture->resource.base.b, &surf_tmpl);
  98
  99         surf_tmpl.format = ((struct pipe_resource*)texture->flushed_depth_texture)->format;
 100         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 101         cbsurf = ctx->create_surface(ctx,
 102                         (struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
 103
 104         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 105             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 106                 depth = 0.0f;
 107
 108         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 109         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 110         r600_blitter_end(ctx);
 111
 112         pipe_surface_reference(&zsurf, NULL);
 113         pipe_surface_reference(&cbsurf, NULL);
 114
 115         texture->dirty_db = FALSE;
 116 }
 117
 118 void r600_flush_depth_textures(struct r600_pipe_context *rctx)
 119 {
 120         unsigned int i;
 121
 122         if (rctx->blit) return;
 123
 124         /* FIXME: This handles fragment shader textures only. */
 125
 126         for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
 127                 struct r600_pipe_sampler_view *view;
 128                 struct r600_resource_texture *tex;
 129
 130                 view = rctx->ps_samplers.views[i];
 131                 if (!view) continue;
 132
 133                 tex = (struct r600_resource_texture *)view->base.texture;
 134                 if (!tex->depth)
 135                         continue;
 136
 137                 r600_blit_uncompress_depth(&rctx->context, tex);
 138         }
 139 }
 140
 141 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 142                         const float *rgba, double depth, unsigned stencil)
 143 {
 144         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 145         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 146
 147         r600_blitter_begin(ctx, R600_CLEAR);
 148         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 149                                 fb->nr_cbufs, buffers, rgba, depth,
 150                                 stencil);
 151         r600_blitter_end(ctx);
 152 }
 153
 154 static void r600_clear_render_target(struct pipe_context *ctx,
 155                                      struct pipe_surface *dst,
 156                                      const float *rgba,
 157                                      unsigned dstx, unsigned dsty,
 158                                      unsigned width, unsigned height)
 159 {
 160         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 161
 162         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 163         util_blitter_clear_render_target(rctx->blitter, dst, rgba,
 164                                          dstx, dsty, width, height);
 165         r600_blitter_end(ctx);
 166 }
 167
 168 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 169                                      struct pipe_surface *dst,
 170                                      unsigned clear_flags,
 171                                      double depth,
 172                                      unsigned stencil,
 173                                      unsigned dstx, unsigned dsty,
 174                                      unsigned width, unsigned height)
 175 {
 176         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 177
 178         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 179         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 180                                          dstx, dsty, width, height);
 181         r600_blitter_end(ctx);
 182 }
 183
 184
 185
 186 /* Copy a block of pixels from one surface to another using HW. */
 187 static void r600_hw_copy_region(struct pipe_context *ctx,
 188                                 struct pipe_resource *dst,
 189                                 unsigned dst_level,
 190                                 unsigned dstx, unsigned dsty, unsigned dstz,
 191                                 struct pipe_resource *src,
 192                                 unsigned src_level,
 193                                 const struct pipe_box *src_box)
 194 {
 195         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 196
 197         r600_blitter_begin(ctx, R600_COPY);
 198         util_blitter_copy_region(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 199                                  src, src_level, src_box, TRUE);
 200         r600_blitter_end(ctx);
 201 }
 202
 203 static void r600_resource_copy_region(struct pipe_context *ctx,
 204                                       struct pipe_resource *dst,
 205                                       unsigned dst_level,
 206                                       unsigned dstx, unsigned dsty, unsigned dstz,
 207                                       struct pipe_resource *src,
 208                                       unsigned src_level,
 209                                       const struct pipe_box *src_box)
 210 {
 211         r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 212                             src, src_level, src_box);
 213 }
 214
 215 void r600_init_blit_functions(struct r600_pipe_context *rctx)
 216 {
 217         rctx->context.clear = r600_clear;
 218         rctx->context.clear_render_target = r600_clear_render_target;
 219         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 220         rctx->context.resource_copy_region = r600_resource_copy_region;
 221 }