| /* |
| * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> |
| * Copyright 2010 Marek Olšák <maraeo@gmail.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * on the rights to use, copy, modify, merge, publish, distribute, sub |
| * license, and/or sell copies of the Software, and to permit persons to whom |
| * the Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| |
| #include "r300_transfer.h" |
| #include "r300_texture_desc.h" |
| #include "r300_screen_buffer.h" |
| |
| #include "util/u_memory.h" |
| #include "util/u_format.h" |
| #include "util/u_box.h" |
| |
| struct r300_transfer { |
| /* Parent class */ |
| struct pipe_transfer transfer; |
| |
| /* Offset from start of buffer. */ |
| unsigned offset; |
| |
| /* Linear texture. */ |
| struct r300_resource *linear_texture; |
| }; |
| |
| /* Convenience cast wrapper. */ |
| static INLINE struct r300_transfer* |
| r300_transfer(struct pipe_transfer* transfer) |
| { |
| return (struct r300_transfer*)transfer; |
| } |
| |
| /* Copy from a tiled texture to a detiled one. */ |
| static void r300_copy_from_tiled_texture(struct pipe_context *ctx, |
| struct r300_transfer *r300transfer) |
| { |
| struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer; |
| struct pipe_resource *tex = transfer->resource; |
| |
| ctx->resource_copy_region(ctx, &r300transfer->linear_texture->b.b.b, 0, |
| 0, 0, 0, |
| tex, transfer->level, &transfer->box); |
| } |
| |
| /* Copy a detiled texture to a tiled one. */ |
| static void r300_copy_into_tiled_texture(struct pipe_context *ctx, |
| struct r300_transfer *r300transfer) |
| { |
| struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer; |
| struct pipe_resource *tex = transfer->resource; |
| struct pipe_box src_box; |
| u_box_origin_2d(transfer->box.width, transfer->box.height, &src_box); |
| |
| ctx->resource_copy_region(ctx, tex, transfer->level, |
| transfer->box.x, transfer->box.y, transfer->box.z, |
| &r300transfer->linear_texture->b.b.b, 0, &src_box); |
| |
| /* XXX remove this. */ |
| r300_flush(ctx, 0, NULL); |
| } |
| |
| struct pipe_transfer* |
| r300_texture_get_transfer(struct pipe_context *ctx, |
| struct pipe_resource *texture, |
| unsigned level, |
| unsigned usage, |
| const struct pipe_box *box) |
| { |
| 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, blittable; |
| const struct util_format_description *desc = |
| util_format_description(texture->format); |
| |
| referenced_cs = |
| r300->rws->cs_is_buffer_referenced(r300->cs, tex->cs_buf); |
| if (referenced_cs) { |
| referenced_hw = TRUE; |
| } else { |
| referenced_hw = |
| r300->rws->buffer_is_busy(tex->buf, RADEON_USAGE_READWRITE); |
| } |
| |
| blittable = desc->layout == UTIL_FORMAT_LAYOUT_PLAIN || |
| desc->layout == UTIL_FORMAT_LAYOUT_S3TC || |
| desc->layout == UTIL_FORMAT_LAYOUT_RGTC; |
| |
| trans = CALLOC_STRUCT(r300_transfer); |
| if (trans) { |
| /* Initialize the transfer object. */ |
| pipe_resource_reference(&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 && blittable && !(usage & PIPE_TRANSFER_READ))) { |
| 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) { |
| /* For linear textures, it's safe to fallback to |
| * an unpipelined transfer. */ |
| if (!tex->tex.microtile && !tex->tex.macrotile[level]) { |
| goto unpipelined; |
| } |
| |
| /* Otherwise, go to hell. */ |
| fprintf(stderr, |
| "r300: Failed to create a transfer object, praise.\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); |
| } |
| return &trans->transfer; |
| } |
| |
| unpipelined: |
| /* 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); |
| return &trans->transfer; |
| } |
| return NULL; |
| } |
| |
| void r300_texture_transfer_destroy(struct pipe_context *ctx, |
| struct pipe_transfer *trans) |
| { |
| struct r300_transfer *r300transfer = r300_transfer(trans); |
| |
| if (r300transfer->linear_texture) { |
| if (trans->usage & PIPE_TRANSFER_WRITE) { |
| r300_copy_into_tiled_texture(ctx, r300transfer); |
| } |
| |
| pipe_resource_reference( |
| (struct pipe_resource**)&r300transfer->linear_texture, NULL); |
| } |
| pipe_resource_reference(&trans->resource, NULL); |
| FREE(trans); |
| } |
| |
| void* r300_texture_transfer_map(struct pipe_context *ctx, |
| struct pipe_transfer *transfer) |
| { |
| struct r300_context *r300 = r300_context(ctx); |
| struct radeon_winsys *rws = (struct radeon_winsys *)ctx->winsys; |
| struct r300_transfer *r300transfer = r300_transfer(transfer); |
| struct r300_resource *tex = r300_resource(transfer->resource); |
| char *map; |
| enum pipe_format format = tex->b.b.b.format; |
| |
| if (r300transfer->linear_texture) { |
| /* The detiled texture is of the same size as the region being mapped |
| * (no offset needed). */ |
| return rws->buffer_map(r300transfer->linear_texture->buf, |
| r300->cs, |
| transfer->usage); |
| } else { |
| /* Tiling is disabled. */ |
| map = rws->buffer_map(tex->buf, r300->cs, |
| transfer->usage); |
| |
| if (!map) { |
| return NULL; |
| } |
| |
| return map + r300_transfer(transfer)->offset + |
| transfer->box.y / util_format_get_blockheight(format) * transfer->stride + |
| transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); |
| } |
| } |
| |
| void r300_texture_transfer_unmap(struct pipe_context *ctx, |
| struct pipe_transfer *transfer) |
| { |
| struct radeon_winsys *rws = (struct radeon_winsys *)ctx->winsys; |
| struct r300_transfer *r300transfer = r300_transfer(transfer); |
| struct r300_resource *tex = r300_resource(transfer->resource); |
| |
| if (r300transfer->linear_texture) { |
| rws->buffer_unmap(r300transfer->linear_texture->buf); |
| } else { |
| rws->buffer_unmap(tex->buf); |
| } |
| } |