src/gallium/drivers/r600/r600_blit.c

   1 /*
   2  * Copyright 2009 Marek Olšák <maraeo@gmail.com>
   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  * Authors:
  24  *      Jerome Glisse
  25  *      Marek Olšák
  26  */
  27 #include <errno.h>
  28 #include <pipe/p_screen.h>
  29 #include <util/u_blitter.h>
  30 #include <util/u_inlines.h>
  31 #include <util/u_memory.h>
  32 #include "util/u_surface.h"
  33 #include "r600_screen.h"
  34 #include "r600_context.h"
  35 #include "r600d.h"
  36
  37 static void r600_blitter_save_states(struct pipe_context *ctx)
  38 {
  39         struct r600_context *rctx = r600_context(ctx);
  40
  41         util_blitter_save_blend(rctx->blitter, rctx->blend);
  42         util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->dsa);
  43         if (rctx->stencil_ref) {
  44                 util_blitter_save_stencil_ref(rctx->blitter,
  45                                         &rctx->stencil_ref->state.stencil_ref);
  46         }
  47         util_blitter_save_rasterizer(rctx->blitter, rctx->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->viewport) {
  52                 util_blitter_save_viewport(rctx->blitter, &rctx->viewport->state.viewport);
  53         }
  54         if (rctx->clip) {
  55                 util_blitter_save_clip(rctx->blitter, &rctx->clip->state.clip);
  56         }
  57         util_blitter_save_vertex_buffers(rctx->blitter, rctx->nvertex_buffer,
  58                                         rctx->vertex_buffer);
  59
  60         /* remove ptr so they don't get deleted */
  61         rctx->blend = NULL;
  62         rctx->clip = NULL;
  63         rctx->vs_shader = NULL;
  64         rctx->ps_shader = NULL;
  65         rctx->rasterizer = NULL;
  66         rctx->dsa = NULL;
  67         rctx->vertex_elements = NULL;
  68
  69         /* suspend queries */
  70         r600_queries_suspend(ctx);
  71 }
  72
  73 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
  74                         const float *rgba, double depth, unsigned stencil)
  75 {
  76         struct r600_context *rctx = r600_context(ctx);
  77         struct pipe_framebuffer_state *fb = &rctx->framebuffer->state.framebuffer;
  78
  79         r600_blitter_save_states(ctx);
  80         util_blitter_clear(rctx->blitter, fb->width, fb->height,
  81                                 fb->nr_cbufs, buffers, rgba, depth,
  82                                 stencil);
  83         /* resume queries */
  84         r600_queries_resume(ctx);
  85 }
  86
  87 static void r600_clear_render_target(struct pipe_context *ctx,
  88                                      struct pipe_surface *dst,
  89                                      const float *rgba,
  90                                      unsigned dstx, unsigned dsty,
  91                                      unsigned width, unsigned height)
  92 {
  93         struct r600_context *rctx = r600_context(ctx);
  94         struct pipe_framebuffer_state *fb = &rctx->framebuffer->state.framebuffer;
  95
  96         r600_blitter_save_states(ctx);
  97         util_blitter_save_framebuffer(rctx->blitter, fb);
  98
  99         util_blitter_clear_render_target(rctx->blitter, dst, rgba,
 100                                          dstx, dsty, width, height);
 101         /* resume queries */
 102         r600_queries_resume(ctx);
 103 }
 104
 105 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 106                                      struct pipe_surface *dst,
 107                                      unsigned clear_flags,
 108                                      double depth,
 109                                      unsigned stencil,
 110                                      unsigned dstx, unsigned dsty,
 111                                      unsigned width, unsigned height)
 112 {
 113         struct r600_context *rctx = r600_context(ctx);
 114         struct pipe_framebuffer_state *fb = &rctx->framebuffer->state.framebuffer;
 115
 116         r600_blitter_save_states(ctx);
 117         util_blitter_save_framebuffer(rctx->blitter, fb);
 118
 119         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 120                                          dstx, dsty, width, height);
 121         /* resume queries */
 122         r600_queries_resume(ctx);
 123 }
 124
 125
 126 static void r600_resource_copy_region(struct pipe_context *ctx,
 127                                       struct pipe_resource *dst,
 128                                       struct pipe_subresource subdst,
 129                                       unsigned dstx, unsigned dsty, unsigned dstz,
 130                                       struct pipe_resource *src,
 131                                       struct pipe_subresource subsrc,
 132                                       unsigned srcx, unsigned srcy, unsigned srcz,
 133                                       unsigned width, unsigned height)
 134 {
 135         util_resource_copy_region(ctx, dst, subdst, dstx, dsty, dstz,
 136                                   src, subsrc, srcx, srcy, srcz, width, height);
 137 }
 138
 139 static void *r600_create_db_flush_dsa(struct r600_context *rctx)
 140 {
 141         struct r600_screen *rscreen = rctx->screen;
 142         struct pipe_depth_stencil_alpha_state dsa;
 143         struct r600_context_state *state;
 144         boolean quirk = false;
 145         enum radeon_family family;
 146
 147         family = radeon_get_family(rscreen->rw);
 148         if (family == CHIP_RV610 || family == CHIP_RV630 || family == CHIP_RV620 ||
 149             family == CHIP_RV635)
 150                 quirk = true;
 151
 152         memset(&dsa, 0, sizeof(dsa));
 153
 154         if (quirk) {
 155                 dsa.depth.enabled = 1;
 156                 dsa.depth.func = PIPE_FUNC_LEQUAL;
 157                 dsa.stencil[0].enabled = 1;
 158                 dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
 159                 dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_KEEP;
 160                 dsa.stencil[0].zfail_op = PIPE_STENCIL_OP_INCR;
 161                 dsa.stencil[0].writemask = 0xff;
 162         }
 163
 164         state = rctx->context.create_depth_stencil_alpha_state(&rctx->context, &dsa);
 165         state->flags |= R600_STATE_FLAG_DSA_FLUSH;
 166         return state;
 167
 168 }
 169
 170 void r600_init_blit_functions(struct r600_context *rctx)
 171 {
 172         rctx->context.clear = r600_clear;
 173         rctx->context.clear_render_target = r600_clear_render_target;
 174         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 175         rctx->context.resource_copy_region = r600_resource_copy_region;
 176
 177         /* create a custom depth stencil for DB flush */
 178         rctx->custom_dsa_flush = r600_create_db_flush_dsa(rctx);
 179 }
 180
 181 int r600_blit_uncompress_depth(struct pipe_context *ctx, struct r600_resource_texture *texture)
 182 {
 183         struct r600_context *rctx = r600_context(ctx);
 184         struct r600_screen *rscreen = rctx->screen;
 185         struct pipe_framebuffer_state *fb = &rctx->framebuffer->state.framebuffer;
 186         struct pipe_surface *zsurf, *cbsurf;
 187         enum radeon_family family;
 188         int level = 0;
 189         float depth = 1.0f;
 190
 191         zsurf = ctx->screen->get_tex_surface(ctx->screen, &texture->resource.base.b, 0, level, 0,
 192                                              PIPE_BIND_DEPTH_STENCIL);
 193
 194         cbsurf = ctx->screen->get_tex_surface(ctx->screen, texture->flushed_depth_texture, 0, level, 0,
 195                                               PIPE_BIND_RENDER_TARGET);
 196
 197         r600_blitter_save_states(ctx);
 198         util_blitter_save_framebuffer(rctx->blitter, fb);
 199
 200         family = radeon_get_family(rscreen->rw);
 201         if (family == CHIP_RV610 || family == CHIP_RV630 || family == CHIP_RV620 ||
 202             family == CHIP_RV635)
 203                 depth = 0.0f;
 204
 205         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 206
 207         /* resume queries */
 208         r600_queries_resume(ctx);
 209         return 0;
 210 }