/* Copy a block of pixels from one surface to another. */ static void r300_resource_copy_region(struct pipe_context *pipe, struct pipe_resource *dst, unsigned dst_level, unsigned dstx, unsigned dsty, unsigned dstz, struct pipe_resource *src, unsigned src_level, const struct pipe_box *src_box) { struct pipe_screen *screen = pipe->screen; struct r300_context *r300 = r300_context(pipe); struct pipe_framebuffer_state *fb = (struct pipe_framebuffer_state*)r300->fb_state.state; unsigned src_width0 = r300_resource(src)->tex.width0; unsigned src_height0 = r300_resource(src)->tex.height0; unsigned dst_width0 = r300_resource(dst)->tex.width0; unsigned dst_height0 = r300_resource(dst)->tex.height0; unsigned layout; struct pipe_box box; struct pipe_sampler_view src_templ, *src_view; struct pipe_surface dst_templ, *dst_view; /* Fallback for buffers. */ if ((dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) || !r300_is_blit_supported(dst->format)) { util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box); return; } /* The code below changes the texture format so that the copy can be done * on hardware. E.g. depth-stencil surfaces are copied as RGBA * colorbuffers. */ util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz, src_box); util_blitter_default_src_texture(&src_templ, src, src_level); layout = util_format_description(dst_templ.format)->layout; /* Handle non-renderable plain formats. */ if (layout == UTIL_FORMAT_LAYOUT_PLAIN && (!screen->is_format_supported(screen, src_templ.format, src->target, src->nr_samples, PIPE_BIND_SAMPLER_VIEW) || !screen->is_format_supported(screen, dst_templ.format, dst->target, dst->nr_samples, PIPE_BIND_RENDER_TARGET))) { switch (util_format_get_blocksize(dst_templ.format)) { case 1: dst_templ.format = PIPE_FORMAT_I8_UNORM; break; case 2: dst_templ.format = PIPE_FORMAT_B4G4R4A4_UNORM; break; case 4: dst_templ.format = PIPE_FORMAT_B8G8R8A8_UNORM; break; case 8: dst_templ.format = PIPE_FORMAT_R16G16B16A16_UNORM; break; default: debug_printf("r300: copy_region: Unhandled format: %s. Falling back to software.\n" "r300: copy_region: Software fallback doesn't work for tiled textures.\n", util_format_short_name(dst_templ.format)); } src_templ.format = dst_templ.format; } /* Handle compressed formats. */ if (layout == UTIL_FORMAT_LAYOUT_S3TC || layout == UTIL_FORMAT_LAYOUT_RGTC) { assert(src_templ.format == dst_templ.format); box = *src_box; src_box = &box; dst_width0 = align(dst_width0, 4); dst_height0 = align(dst_height0, 4); src_width0 = align(src_width0, 4); src_height0 = align(src_height0, 4); box.width = align(box.width, 4); box.height = align(box.height, 4); switch (util_format_get_blocksize(dst_templ.format)) { case 8: /* one 4x4 pixel block has 8 bytes. * we set 1 pixel = 4 bytes ===> 1 block corrensponds to 2 pixels. */ dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM; dst_width0 = dst_width0 / 2; src_width0 = src_width0 / 2; dstx /= 2; box.x /= 2; box.width /= 2; break; case 16: /* one 4x4 pixel block has 16 bytes. * we set 1 pixel = 4 bytes ===> 1 block corresponds to 4 pixels. */ dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM; break; } src_templ.format = dst_templ.format; dst_height0 = dst_height0 / 4; src_height0 = src_height0 / 4; dsty /= 4; box.y /= 4; box.height /= 4; } /* Fallback for textures. */ if (!screen->is_format_supported(screen, dst_templ.format, dst->target, dst->nr_samples, PIPE_BIND_RENDER_TARGET) || !screen->is_format_supported(screen, src_templ.format, src->target, src->nr_samples, PIPE_BIND_SAMPLER_VIEW)) { assert(0 && "this shouldn't happen, update r300_is_blit_supported"); util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box); return; } /* Decompress ZMASK. */ if (r300->zmask_in_use && !r300->locked_zbuffer) { if (fb->zsbuf->texture == src || fb->zsbuf->texture == dst) { r300_decompress_zmask(r300); } } dst_view = r300_create_surface_custom(pipe, dst, &dst_templ, dst_width0, dst_height0); src_view = r300_create_sampler_view_custom(pipe, src, &src_templ, src_width0, src_height0); r300_blitter_begin(r300, R300_COPY); util_blitter_blit_generic(r300->blitter, dst_view, dstx, dsty, abs(src_box->width), abs(src_box->height), src_view, src_box, src_width0, src_height0, PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL, FALSE); r300_blitter_end(r300); pipe_surface_reference(&dst_view, NULL); pipe_sampler_view_reference(&src_view, NULL); }
void * r300_texture_transfer_map(struct pipe_context *ctx, struct pipe_resource *texture, unsigned level, unsigned usage, const struct pipe_box *box, struct pipe_transfer **transfer) { struct r300_context *r300 = r300_context(ctx); struct r300_resource *tex = r300_resource(texture); struct r300_transfer *trans; struct pipe_resource base; boolean referenced_cs, referenced_hw; enum pipe_format format = tex->b.b.format; char *map; referenced_cs = r300->rws->cs_is_buffer_referenced(r300->cs, tex->cs_buf, RADEON_USAGE_READWRITE); if (referenced_cs) { referenced_hw = TRUE; } else { referenced_hw = r300->rws->buffer_is_busy(tex->buf, RADEON_USAGE_READWRITE); } trans = CALLOC_STRUCT(r300_transfer); if (trans) { /* Initialize the transfer object. */ trans->transfer.resource = texture; trans->transfer.level = level; trans->transfer.usage = usage; trans->transfer.box = *box; /* If the texture is tiled, we must create a temporary detiled texture * for this transfer. * Also make write transfers pipelined. */ if (tex->tex.microtile || tex->tex.macrotile[level] || (referenced_hw && !(usage & PIPE_TRANSFER_READ) && r300_is_blit_supported(texture->format))) { if (r300->blitter->running) { fprintf(stderr, "r300: ERROR: Blitter recursion in texture_get_transfer.\n"); os_break(); } base.target = PIPE_TEXTURE_2D; base.format = texture->format; base.width0 = box->width; base.height0 = box->height; base.depth0 = 1; base.array_size = 1; base.last_level = 0; base.nr_samples = 0; base.usage = PIPE_USAGE_STAGING; base.bind = 0; if (usage & PIPE_TRANSFER_READ) { base.bind |= PIPE_BIND_SAMPLER_VIEW; } if (usage & PIPE_TRANSFER_WRITE) { base.bind |= PIPE_BIND_RENDER_TARGET; } base.flags = R300_RESOURCE_FLAG_TRANSFER; /* For texture reading, the temporary (detiled) texture is used as * a render target when blitting from a tiled texture. */ if (usage & PIPE_TRANSFER_READ) { base.bind |= PIPE_BIND_RENDER_TARGET; } /* For texture writing, the temporary texture is used as a sampler * when blitting into a tiled texture. */ if (usage & PIPE_TRANSFER_WRITE) { base.bind |= PIPE_BIND_SAMPLER_VIEW; } /* Create the temporary texture. */ trans->linear_texture = r300_resource( ctx->screen->resource_create(ctx->screen, &base)); if (!trans->linear_texture) { /* Oh crap, the thing can't create the texture. * Let's flush and try again. */ r300_flush(ctx, 0, NULL); trans->linear_texture = r300_resource( ctx->screen->resource_create(ctx->screen, &base)); if (!trans->linear_texture) { fprintf(stderr, "r300: Failed to create a transfer object.\n"); FREE(trans); return NULL; } } assert(!trans->linear_texture->tex.microtile && !trans->linear_texture->tex.macrotile[0]); /* Set the stride. */ trans->transfer.stride = trans->linear_texture->tex.stride_in_bytes[0]; if (usage & PIPE_TRANSFER_READ) { /* We cannot map a tiled texture directly because the data is * in a different order, therefore we do detiling using a blit. */ r300_copy_from_tiled_texture(ctx, trans); /* Always referenced in the blit. */ r300_flush(ctx, 0, NULL); } } else { /* Unpipelined transfer. */ trans->transfer.stride = tex->tex.stride_in_bytes[level]; trans->offset = r300_texture_get_offset(tex, level, box->z); if (referenced_cs && !(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) { r300_flush(ctx, 0, NULL); } } } if (trans->linear_texture) { /* The detiled texture is of the same size as the region being mapped * (no offset needed). */ map = r300->rws->buffer_map(trans->linear_texture->cs_buf, r300->cs, usage); if (!map) { pipe_resource_reference( (struct pipe_resource**)&trans->linear_texture, NULL); FREE(trans); return NULL; } *transfer = &trans->transfer; return map; } else { /* Tiling is disabled. */ map = r300->rws->buffer_map(tex->cs_buf, r300->cs, usage); if (!map) { FREE(trans); return NULL; } *transfer = &trans->transfer; return map + trans->offset + box->y / util_format_get_blockheight(format) * trans->transfer.stride + box->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); } }