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->flushed) return;
  89
  90         surf_tmpl.format = texture->resource.base.b.format;
  91         surf_tmpl.u.tex.level = level;
  92         surf_tmpl.u.tex.first_layer = 0;
  93         surf_tmpl.u.tex.last_layer = 0;
  94         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
  95
  96         zsurf = ctx->create_surface(ctx, &texture->resource.base.b, &surf_tmpl);
  97
  98         surf_tmpl.format = ((struct pipe_resource*)texture->flushed_depth_texture)->format;
  99         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 100         cbsurf = ctx->create_surface(ctx,
 101                         (struct pipe_resource*)texture->flushed_depth_texture, &surf_tmpl);
 102
 103         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 104             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 105                 depth = 0.0f;
 106
 107         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 108         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 109         r600_blitter_end(ctx);
 110         texture->flushed = true;
 111
 112         pipe_surface_reference(&zsurf, NULL);
 113         pipe_surface_reference(&cbsurf, NULL);
 114 }
 115
 116 void r600_flush_depth_textures(struct r600_pipe_context *rctx)
 117 {
 118         unsigned int i;
 119
 120         if (rctx->blit) return;
 121
 122         /* FIXME: This handles fragment shader textures only. */
 123
 124         for (i = 0; i < rctx->ps_samplers.n_views; ++i) {
 125                 struct r600_pipe_sampler_view *view;
 126                 struct r600_resource_texture *tex;
 127
 128                 view = rctx->ps_samplers.views[i];
 129                 if (!view) continue;
 130
 131                 tex = (struct r600_resource_texture *)view->base.texture;
 132                 if (!tex->depth) continue;
 133
 134                 r600_blit_uncompress_depth(&rctx->context, tex);
 135         }
 136 }
 137
 138 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 139                         const float *rgba, double depth, unsigned stencil)
 140 {
 141         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 142         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 143
 144         r600_blitter_begin(ctx, R600_CLEAR);
 145         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 146                                 fb->nr_cbufs, buffers, rgba, depth,
 147                                 stencil);
 148         r600_blitter_end(ctx);
 149 }
 150
 151 static void r600_clear_render_target(struct pipe_context *ctx,
 152                                      struct pipe_surface *dst,
 153                                      const float *rgba,
 154                                      unsigned dstx, unsigned dsty,
 155                                      unsigned width, unsigned height)
 156 {
 157         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 158
 159         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 160         util_blitter_clear_render_target(rctx->blitter, dst, rgba,
 161                                          dstx, dsty, width, height);
 162         r600_blitter_end(ctx);
 163 }
 164
 165 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 166                                      struct pipe_surface *dst,
 167                                      unsigned clear_flags,
 168                                      double depth,
 169                                      unsigned stencil,
 170                                      unsigned dstx, unsigned dsty,
 171                                      unsigned width, unsigned height)
 172 {
 173         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 174
 175         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 176         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 177                                          dstx, dsty, width, height);
 178         r600_blitter_end(ctx);
 179 }
 180
 181
 182
 183 /* Copy a block of pixels from one surface to another using HW. */
 184 static void r600_hw_copy_region(struct pipe_context *ctx,
 185                                 struct pipe_resource *dst,
 186                                 unsigned dst_level,
 187                                 unsigned dstx, unsigned dsty, unsigned dstz,
 188                                 struct pipe_resource *src,
 189                                 unsigned src_level,
 190                                 const struct pipe_box *src_box)
 191 {
 192         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 193
 194         r600_blitter_begin(ctx, R600_COPY);
 195         util_blitter_copy_region(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 196                                  src, src_level, src_box, TRUE);
 197         r600_blitter_end(ctx);
 198 }
 199
 200 static void r600_resource_copy_region(struct pipe_context *ctx,
 201                                       struct pipe_resource *dst,
 202                                       unsigned dst_level,
 203                                       unsigned dstx, unsigned dsty, unsigned dstz,
 204                                       struct pipe_resource *src,
 205                                       unsigned src_level,
 206                                       const struct pipe_box *src_box)
 207 {
 208         boolean is_depth;
 209         /* there is something wrong with depth resource copies at the moment so avoid them for now */
 210         is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0;
 211         if (is_depth)
 212                 util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 213                                           src, src_level, src_box);
 214         else
 215                 r600_hw_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 216                                     src, src_level, src_box);
 217 }
 218
 219 void r600_init_blit_functions(struct r600_pipe_context *rctx)
 220 {
 221         rctx->context.clear = r600_clear;
 222         rctx->context.clear_render_target = r600_clear_render_target;
 223         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 224         rctx->context.resource_copy_region = r600_resource_copy_region;
 225 }