/** * The state tracker implements some resource copies with blits (for * GL_ARB_copy_image). This function checks if we should really do the blit * with a VGPU10 CopyRegion command or software fallback (for incompatible * src/dst formats). */ static bool can_blit_via_copy_region_vgpu10(struct svga_context *svga, const struct pipe_blit_info *blit_info) { struct svga_texture *dtex, *stex; /* can't copy between different resource types */ if (svga_resource_type(blit_info->src.resource->target) != svga_resource_type(blit_info->dst.resource->target)) return false; stex = svga_texture(blit_info->src.resource); dtex = svga_texture(blit_info->dst.resource); if (!svga_have_vgpu10(svga)) return false; if (stex->handle == dtex->handle) return false; return formats_compatible(svga_screen(svga->pipe.screen), stex->key.format, dtex->key.format); }
/** * Copy pixel block from src surface to dst surface. * Overlapping regions are acceptable. * Flipping and stretching are supported. * \param filter one of PIPE_TEX_MIPFILTER_NEAREST/LINEAR * \param writemask controls which channels in the dest surface are sourced * from the src surface. Disabled channels are sourced * from (0,0,0,1). */ void util_blit_pixels(struct blit_state *ctx, struct pipe_resource *src_tex, unsigned src_level, int srcX0, int srcY0, int srcX1, int srcY1, int srcZ0, struct pipe_surface *dst, int dstX0, int dstY0, int dstX1, int dstY1, float z, uint filter, uint writemask, uint zs_writemask) { struct pipe_context *pipe = ctx->pipe; enum pipe_format src_format, dst_format; const int srcW = abs(srcX1 - srcX0); const int srcH = abs(srcY1 - srcY0); boolean overlap; boolean is_stencil, is_depth, blit_depth, blit_stencil; const struct util_format_description *src_desc = util_format_description(src_tex->format); struct pipe_blit_info info; assert(filter == PIPE_TEX_MIPFILTER_NEAREST || filter == PIPE_TEX_MIPFILTER_LINEAR); assert(src_level <= src_tex->last_level); /* do the regions overlap? */ overlap = src_tex == dst->texture && dst->u.tex.level == src_level && dst->u.tex.first_layer == srcZ0 && regions_overlap(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1); src_format = util_format_linear(src_tex->format); dst_format = util_format_linear(dst->texture->format); /* See whether we will blit depth or stencil. */ is_depth = util_format_has_depth(src_desc); is_stencil = util_format_has_stencil(src_desc); blit_depth = is_depth && (zs_writemask & BLIT_WRITEMASK_Z); blit_stencil = is_stencil && (zs_writemask & BLIT_WRITEMASK_STENCIL); assert((writemask && !zs_writemask && !is_depth && !is_stencil) || (!writemask && (blit_depth || blit_stencil))); /* * XXX: z parameter is deprecated. dst->u.tex.first_layer * specificies the destination layer. */ assert(z == 0.0f); /* * Check for simple case: no format conversion, no flipping, no stretching, * no overlapping, same number of samples. * Filter mode should not matter since there's no stretching. */ if (formats_compatible(src_format, dst_format) && src_tex->nr_samples == dst->texture->nr_samples && is_stencil == blit_stencil && is_depth == blit_depth && srcX0 < srcX1 && dstX0 < dstX1 && srcY0 < srcY1 && dstY0 < dstY1 && (dstX1 - dstX0) == (srcX1 - srcX0) && (dstY1 - dstY0) == (srcY1 - srcY0) && !overlap) { struct pipe_box src_box; src_box.x = srcX0; src_box.y = srcY0; src_box.z = srcZ0; src_box.width = srcW; src_box.height = srcH; src_box.depth = 1; pipe->resource_copy_region(pipe, dst->texture, dst->u.tex.level, dstX0, dstY0, dst->u.tex.first_layer,/* dest */ src_tex, src_level, &src_box); return; } memset(&info, 0, sizeof info); info.dst.resource = dst->texture; info.dst.level = dst->u.tex.level; info.dst.box.x = dstX0; info.dst.box.y = dstY0; info.dst.box.z = dst->u.tex.first_layer; info.dst.box.width = dstX1 - dstX0; info.dst.box.height = dstY1 - dstY0; assert(info.dst.box.width >= 0); assert(info.dst.box.height >= 0); info.dst.box.depth = 1; info.dst.format = dst->texture->format; info.src.resource = src_tex; info.src.level = src_level; info.src.box.x = srcX0; info.src.box.y = srcY0; info.src.box.z = srcZ0; info.src.box.width = srcX1 - srcX0; info.src.box.height = srcY1 - srcY0; info.src.box.depth = 1; info.src.format = src_tex->format; info.mask = writemask | (zs_writemask << 4); info.filter = filter; info.scissor_enable = 0; pipe->blit(pipe, &info); }
/** * Copy pixel block from src surface to dst surface. * Overlapping regions are acceptable. * Flipping and stretching are supported. * \param filter one of PIPE_TEX_MIPFILTER_NEAREST/LINEAR * \param writemask controls which channels in the dest surface are sourced * from the src surface. Disabled channels are sourced * from (0,0,0,1). */ void util_blit_pixels(struct blit_state *ctx, struct pipe_resource *src_tex, unsigned src_level, int srcX0, int srcY0, int srcX1, int srcY1, int srcZ0, struct pipe_surface *dst, int dstX0, int dstY0, int dstX1, int dstY1, float z, uint filter, uint writemask, uint zs_writemask) { struct pipe_context *pipe = ctx->pipe; struct pipe_screen *screen = pipe->screen; enum pipe_format src_format, dst_format; struct pipe_sampler_view *sampler_view = NULL; struct pipe_sampler_view sv_templ; struct pipe_surface *dst_surface; struct pipe_framebuffer_state fb; const int srcW = abs(srcX1 - srcX0); const int srcH = abs(srcY1 - srcY0); unsigned offset; boolean overlap; float s0, t0, s1, t1; boolean normalized; boolean is_stencil, is_depth, blit_depth, blit_stencil; const struct util_format_description *src_desc = util_format_description(src_tex->format); assert(filter == PIPE_TEX_MIPFILTER_NEAREST || filter == PIPE_TEX_MIPFILTER_LINEAR); assert(src_level <= src_tex->last_level); /* do the regions overlap? */ overlap = src_tex == dst->texture && dst->u.tex.level == src_level && dst->u.tex.first_layer == srcZ0 && regions_overlap(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1); src_format = util_format_linear(src_tex->format); dst_format = util_format_linear(dst->texture->format); /* See whether we will blit depth or stencil. */ is_depth = util_format_has_depth(src_desc); is_stencil = util_format_has_stencil(src_desc); blit_depth = is_depth && (zs_writemask & BLIT_WRITEMASK_Z); blit_stencil = is_stencil && (zs_writemask & BLIT_WRITEMASK_STENCIL); assert((writemask && !zs_writemask && !is_depth && !is_stencil) || (!writemask && (blit_depth || blit_stencil))); /* * Check for simple case: no format conversion, no flipping, no stretching, * no overlapping, same number of samples. * Filter mode should not matter since there's no stretching. */ if (formats_compatible(src_format, dst_format) && src_tex->nr_samples == dst->texture->nr_samples && is_stencil == blit_stencil && is_depth == blit_depth && srcX0 < srcX1 && dstX0 < dstX1 && srcY0 < srcY1 && dstY0 < dstY1 && (dstX1 - dstX0) == (srcX1 - srcX0) && (dstY1 - dstY0) == (srcY1 - srcY0) && !overlap) { struct pipe_box src_box; src_box.x = srcX0; src_box.y = srcY0; src_box.z = srcZ0; src_box.width = srcW; src_box.height = srcH; src_box.depth = 1; pipe->resource_copy_region(pipe, dst->texture, dst->u.tex.level, dstX0, dstY0, dst->u.tex.first_layer,/* dest */ src_tex, src_level, &src_box); return; } /* XXX Reading multisample textures is unimplemented. */ assert(src_tex->nr_samples <= 1); if (src_tex->nr_samples > 1) { return; } /* It's a mistake to call this function with a stencil format and * without shader stencil export. We don't do software fallbacks here. * Ignore stencil and only copy depth. */ if (blit_stencil && !ctx->has_stencil_export) { blit_stencil = FALSE; if (!blit_depth) return; } if (dst_format == dst->format) { dst_surface = dst; } else { struct pipe_surface templ = *dst; templ.format = dst_format; dst_surface = pipe->create_surface(pipe, dst->texture, &templ); } /* Create a temporary texture when src and dest alias. */ if (src_tex == dst_surface->texture && dst_surface->u.tex.level == src_level && dst_surface->u.tex.first_layer == srcZ0) { /* Make a temporary texture which contains a copy of the source pixels. * Then we'll sample from the temporary texture. */ struct pipe_resource texTemp; struct pipe_resource *tex; struct pipe_sampler_view sv_templ; struct pipe_box src_box; const int srcLeft = MIN2(srcX0, srcX1); const int srcTop = MIN2(srcY0, srcY1); if (srcLeft != srcX0) { /* left-right flip */ int tmp = dstX0; dstX0 = dstX1; dstX1 = tmp; } if (srcTop != srcY0) { /* up-down flip */ int tmp = dstY0; dstY0 = dstY1; dstY1 = tmp; } /* create temp texture */ memset(&texTemp, 0, sizeof(texTemp)); texTemp.target = ctx->internal_target; texTemp.format = src_format; texTemp.last_level = 0; texTemp.width0 = srcW; texTemp.height0 = srcH; texTemp.depth0 = 1; texTemp.array_size = 1; texTemp.bind = PIPE_BIND_SAMPLER_VIEW; tex = screen->resource_create(screen, &texTemp); if (!tex) return; src_box.x = srcLeft; src_box.y = srcTop; src_box.z = srcZ0; src_box.width = srcW; src_box.height = srcH; src_box.depth = 1; /* load temp texture */ pipe->resource_copy_region(pipe, tex, 0, 0, 0, 0, /* dest */ src_tex, src_level, &src_box); normalized = tex->target != PIPE_TEXTURE_RECT; if(normalized) { s0 = 0.0f; s1 = 1.0f; t0 = 0.0f; t1 = 1.0f; } else { s0 = 0; s1 = srcW; t0 = 0; t1 = srcH; } u_sampler_view_default_template(&sv_templ, tex, tex->format); if (!blit_depth && blit_stencil) { /* set a stencil-only format, e.g. Z24S8 --> X24S8 */ sv_templ.format = util_format_stencil_only(tex->format); assert(sv_templ.format != PIPE_FORMAT_NONE); } sampler_view = pipe->create_sampler_view(pipe, tex, &sv_templ); if (!sampler_view) { pipe_resource_reference(&tex, NULL); return; } pipe_resource_reference(&tex, NULL); } else { /* Directly sample from the source resource/texture */ u_sampler_view_default_template(&sv_templ, src_tex, src_format); if (!blit_depth && blit_stencil) { /* set a stencil-only format, e.g. Z24S8 --> X24S8 */ sv_templ.format = util_format_stencil_only(src_format); assert(sv_templ.format != PIPE_FORMAT_NONE); } sampler_view = pipe->create_sampler_view(pipe, src_tex, &sv_templ); if (!sampler_view) { return; } s0 = srcX0; s1 = srcX1; t0 = srcY0; t1 = srcY1; normalized = sampler_view->texture->target != PIPE_TEXTURE_RECT; if(normalized) { s0 /= (float)(u_minify(sampler_view->texture->width0, src_level)); s1 /= (float)(u_minify(sampler_view->texture->width0, src_level)); t0 /= (float)(u_minify(sampler_view->texture->height0, src_level)); t1 /= (float)(u_minify(sampler_view->texture->height0, src_level)); } } assert(screen->is_format_supported(screen, sampler_view->format, ctx->internal_target, sampler_view->texture->nr_samples, PIPE_BIND_SAMPLER_VIEW)); assert(screen->is_format_supported(screen, dst_format, ctx->internal_target, dst_surface->texture->nr_samples, is_depth || is_stencil ? PIPE_BIND_DEPTH_STENCIL : PIPE_BIND_RENDER_TARGET)); /* save state (restored below) */ cso_save_blend(ctx->cso); cso_save_depth_stencil_alpha(ctx->cso); cso_save_rasterizer(ctx->cso); cso_save_sample_mask(ctx->cso); cso_save_samplers(ctx->cso, PIPE_SHADER_FRAGMENT); cso_save_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT); cso_save_stream_outputs(ctx->cso); cso_save_viewport(ctx->cso); cso_save_framebuffer(ctx->cso); cso_save_fragment_shader(ctx->cso); cso_save_vertex_shader(ctx->cso); cso_save_geometry_shader(ctx->cso); cso_save_vertex_elements(ctx->cso); cso_save_aux_vertex_buffer_slot(ctx->cso); cso_save_render_condition(ctx->cso); /* set misc state we care about */ if (writemask) cso_set_blend(ctx->cso, &ctx->blend_write_color); else cso_set_blend(ctx->cso, &ctx->blend_keep_color); cso_set_sample_mask(ctx->cso, ~0); cso_set_rasterizer(ctx->cso, &ctx->rasterizer); cso_set_vertex_elements(ctx->cso, 2, ctx->velem); cso_set_stream_outputs(ctx->cso, 0, NULL, 0); cso_set_render_condition(ctx->cso, NULL, 0); /* default sampler state */ ctx->sampler.normalized_coords = normalized; ctx->sampler.min_img_filter = filter; ctx->sampler.mag_img_filter = filter; ctx->sampler.min_lod = src_level; ctx->sampler.max_lod = src_level; /* Depth stencil state, fragment shader and sampler setup depending on what * we blit. */ if (blit_depth && blit_stencil) { cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler); /* don't filter stencil */ ctx->sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; ctx->sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &ctx->sampler); cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_write_depthstencil); set_depthstencil_fragment_shader(ctx, sampler_view->texture->target); } else if (blit_depth) { cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler); cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_write_depth); set_depth_fragment_shader(ctx, sampler_view->texture->target); } else if (blit_stencil) { /* don't filter stencil */ ctx->sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; ctx->sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler); cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_write_stencil); set_stencil_fragment_shader(ctx, sampler_view->texture->target); } else { /* color */ cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler); cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_keep_depthstencil); set_fragment_shader(ctx, writemask, sampler_view->texture->target); } cso_single_sampler_done(ctx->cso, PIPE_SHADER_FRAGMENT); /* textures */ if (blit_depth && blit_stencil) { /* Setup two samplers, one for depth and the other one for stencil. */ struct pipe_sampler_view templ; struct pipe_sampler_view *views[2]; templ = *sampler_view; templ.format = util_format_stencil_only(templ.format); assert(templ.format != PIPE_FORMAT_NONE); views[0] = sampler_view; views[1] = pipe->create_sampler_view(pipe, views[0]->texture, &templ); cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 2, views); pipe_sampler_view_reference(&views[1], NULL); } else { cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &sampler_view); } /* viewport */ ctx->viewport.scale[0] = 0.5f * dst_surface->width; ctx->viewport.scale[1] = 0.5f * dst_surface->height; ctx->viewport.scale[2] = 0.5f; ctx->viewport.scale[3] = 1.0f; ctx->viewport.translate[0] = 0.5f * dst_surface->width; ctx->viewport.translate[1] = 0.5f * dst_surface->height; ctx->viewport.translate[2] = 0.5f; ctx->viewport.translate[3] = 0.0f; cso_set_viewport(ctx->cso, &ctx->viewport); set_vertex_shader(ctx); cso_set_geometry_shader_handle(ctx->cso, NULL); /* drawing dest */ memset(&fb, 0, sizeof(fb)); fb.width = dst_surface->width; fb.height = dst_surface->height; if (blit_depth || blit_stencil) { fb.zsbuf = dst_surface; } else { fb.nr_cbufs = 1; fb.cbufs[0] = dst_surface; } cso_set_framebuffer(ctx->cso, &fb); /* draw quad */ offset = setup_vertex_data_tex(ctx, (float) dstX0 / dst_surface->width * 2.0f - 1.0f, (float) dstY0 / dst_surface->height * 2.0f - 1.0f, (float) dstX1 / dst_surface->width * 2.0f - 1.0f, (float) dstY1 / dst_surface->height * 2.0f - 1.0f, s0, t0, s1, t1, z); if (ctx->vbuf) { util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf, cso_get_aux_vertex_buffer_slot(ctx->cso), offset, PIPE_PRIM_TRIANGLE_FAN, 4, /* verts */ 2); /* attribs/vert */ } /* restore state we changed */ cso_restore_blend(ctx->cso); cso_restore_depth_stencil_alpha(ctx->cso); cso_restore_rasterizer(ctx->cso); cso_restore_sample_mask(ctx->cso); cso_restore_samplers(ctx->cso, PIPE_SHADER_FRAGMENT); cso_restore_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT); cso_restore_viewport(ctx->cso); cso_restore_framebuffer(ctx->cso); cso_restore_fragment_shader(ctx->cso); cso_restore_vertex_shader(ctx->cso); cso_restore_geometry_shader(ctx->cso); cso_restore_vertex_elements(ctx->cso); cso_restore_aux_vertex_buffer_slot(ctx->cso); cso_restore_stream_outputs(ctx->cso); cso_restore_render_condition(ctx->cso); pipe_sampler_view_reference(&sampler_view, NULL); if (dst_surface != dst) pipe_surface_reference(&dst_surface, NULL); }