/* * Copyright 2015 Advanced Micro Devices, Inc. * * 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 "state_tracker/st_context.h" #include "state_tracker/st_cb_bitmap.h" #include "state_tracker/st_cb_copyimage.h" #include "state_tracker/st_cb_fbo.h" #include "state_tracker/st_texture.h" #include "util/u_box.h" #include "util/u_format.h" #include "util/u_inlines.h" /** * Return an equivalent canonical format without "X" channels. * * Copying between incompatible formats is easier when the format is * canonicalized, meaning that it is in a standard form. * * The returned format has the same component sizes and swizzles as * the source format, the type is changed to UINT or UNORM, depending on * which one has the most swizzle combinations in their group. * * If it's not an array format, return a memcpy-equivalent array format. * * The key feature is that swizzled versions of formats of the same * component size always return the same component type. * * X returns A. * Luminance, intensity, alpha, depth, stencil, and 8-bit and 16-bit packed * formats are not supported. (same as ARB_copy_image) */ static enum pipe_format get_canonical_format(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); /* Packed formats. Return the equivalent array format. */ if (format == PIPE_FORMAT_R11G11B10_FLOAT || format == PIPE_FORMAT_R9G9B9E5_FLOAT) return get_canonical_format(PIPE_FORMAT_R8G8B8A8_UINT); if (desc->nr_channels == 4 && desc->channel[0].size == 10 && desc->channel[1].size == 10 && desc->channel[2].size == 10 && desc->channel[3].size == 2) { if (desc->swizzle[0] == PIPE_SWIZZLE_X && desc->swizzle[1] == PIPE_SWIZZLE_Y && desc->swizzle[2] == PIPE_SWIZZLE_Z) return get_canonical_format(PIPE_FORMAT_R8G8B8A8_UINT); return PIPE_FORMAT_NONE; } #define RETURN_FOR_SWIZZLE1(x, format) \ if (desc->swizzle[0] == PIPE_SWIZZLE_##x) \ return format #define RETURN_FOR_SWIZZLE2(x, y, format) \ if (desc->swizzle[0] == PIPE_SWIZZLE_##x && \ desc->swizzle[1] == PIPE_SWIZZLE_##y) \ return format #define RETURN_FOR_SWIZZLE3(x, y, z, format) \ if (desc->swizzle[0] == PIPE_SWIZZLE_##x && \ desc->swizzle[1] == PIPE_SWIZZLE_##y && \ desc->swizzle[2] == PIPE_SWIZZLE_##z) \ return format #define RETURN_FOR_SWIZZLE4(x, y, z, w, format) \ if (desc->swizzle[0] == PIPE_SWIZZLE_##x && \ desc->swizzle[1] == PIPE_SWIZZLE_##y && \ desc->swizzle[2] == PIPE_SWIZZLE_##z && \ desc->swizzle[3] == PIPE_SWIZZLE_##w) \ return format /* Array formats. */ if (desc->is_array) { switch (desc->nr_channels) { case 1: switch (desc->channel[0].size) { case 8: RETURN_FOR_SWIZZLE1(X, PIPE_FORMAT_R8_UINT); break; case 16: RETURN_FOR_SWIZZLE1(X, PIPE_FORMAT_R16_UINT); break; case 32: RETURN_FOR_SWIZZLE1(X, PIPE_FORMAT_R32_UINT); break; } break; case 2: switch (desc->channel[0].size) { case 8: /* All formats in each group must be of the same type. * We can't use UINT for R8G8 while using UNORM for G8R8. */ RETURN_FOR_SWIZZLE2(X, Y, PIPE_FORMAT_R8G8_UNORM); RETURN_FOR_SWIZZLE2(Y, X, PIPE_FORMAT_G8R8_UNORM); break; case 16: RETURN_FOR_SWIZZLE2(X, Y, PIPE_FORMAT_R16G16_UNORM); RETURN_FOR_SWIZZLE2(Y, X, PIPE_FORMAT_G16R16_UNORM); break; case 32: RETURN_FOR_SWIZZLE2(X, Y, PIPE_FORMAT_R32G32_UINT); break; } break; case 3: switch (desc->channel[0].size) { case 8: RETURN_FOR_SWIZZLE3(X, Y, Z, PIPE_FORMAT_R8G8B8_UINT); break; case 16: RETURN_FOR_SWIZZLE3(X, Y, Z, PIPE_FORMAT_R16G16B16_UINT); break; case 32: RETURN_FOR_SWIZZLE3(X, Y, Z, PIPE_FORMAT_R32G32B32_UINT); break; } break; case 4: switch (desc->channel[0].size) { case 8: RETURN_FOR_SWIZZLE4(X, Y, Z, W, PIPE_FORMAT_R8G8B8A8_UNORM); RETURN_FOR_SWIZZLE4(X, Y, Z, 1, PIPE_FORMAT_R8G8B8A8_UNORM); RETURN_FOR_SWIZZLE4(Z, Y, X, W, PIPE_FORMAT_B8G8R8A8_UNORM); RETURN_FOR_SWIZZLE4(Z, Y, X, 1, PIPE_FORMAT_B8G8R8A8_UNORM); RETURN_FOR_SWIZZLE4(W, Z, Y, X, PIPE_FORMAT_A8B8G8R8_UNORM); RETURN_FOR_SWIZZLE4(W, Z, Y, 1, PIPE_FORMAT_A8B8G8R8_UNORM); RETURN_FOR_SWIZZLE4(Y, Z, W, X, PIPE_FORMAT_A8R8G8B8_UNORM); RETURN_FOR_SWIZZLE4(Y, Z, W, 1, PIPE_FORMAT_A8R8G8B8_UNORM); break; case 16: RETURN_FOR_SWIZZLE4(X, Y, Z, W, PIPE_FORMAT_R16G16B16A16_UINT); RETURN_FOR_SWIZZLE4(X, Y, Z, 1, PIPE_FORMAT_R16G16B16A16_UINT); break; case 32: RETURN_FOR_SWIZZLE4(X, Y, Z, W, PIPE_FORMAT_R32G32B32A32_UINT); RETURN_FOR_SWIZZLE4(X, Y, Z, 1, PIPE_FORMAT_R32G32B32A32_UINT); break; } } assert(!"unknown array format"); return PIPE_FORMAT_NONE; } assert(!"unknown packed format"); return PIPE_FORMAT_NONE; } /** * Return true if the swizzle is XYZW in case of a 4-channel format, * XY in case of a 2-channel format, or X in case of a 1-channel format. */ static bool has_identity_swizzle(const struct util_format_description *desc) { int i; for (i = 0; i < desc->nr_channels; i++) if (desc->swizzle[i] != PIPE_SWIZZLE_X + i) return false; return true; } /** * Return a canonical format for the given bits and channel size. */ static enum pipe_format canonical_format_from_bits(unsigned bits, unsigned channel_size) { switch (bits) { case 8: if (channel_size == 8) return get_canonical_format(PIPE_FORMAT_R8_UINT); break; case 16: if (channel_size == 8) return get_canonical_format(PIPE_FORMAT_R8G8_UINT); if (channel_size == 16) return get_canonical_format(PIPE_FORMAT_R16_UINT); break; case 32: if (channel_size == 8) return get_canonical_format(PIPE_FORMAT_R8G8B8A8_UINT); if (channel_size == 16) return get_canonical_format(PIPE_FORMAT_R16G16_UINT); if (channel_size == 32) return get_canonical_format(PIPE_FORMAT_R32_UINT); break; case 64: if (channel_size == 16) return get_canonical_format(PIPE_FORMAT_R16G16B16A16_UINT); if (channel_size == 32) return get_canonical_format(PIPE_FORMAT_R32G32_UINT); break; case 128: if (channel_size == 32) return get_canonical_format(PIPE_FORMAT_R32G32B32A32_UINT); break; } assert(!"impossible format"); return PIPE_FORMAT_NONE; } static void blit(struct pipe_context *pipe, struct pipe_resource *dst, enum pipe_format dst_format, unsigned dst_level, unsigned dstx, unsigned dsty, unsigned dstz, struct pipe_resource *src, enum pipe_format src_format, unsigned src_level, const struct pipe_box *src_box) { struct pipe_blit_info blit = {{0}}; blit.src.resource = src; blit.dst.resource = dst; blit.src.format = src_format; blit.dst.format = dst_format; blit.src.level = src_level; blit.dst.level = dst_level; blit.src.box = *src_box; u_box_3d(dstx, dsty, dstz, src_box->width, src_box->height, src_box->depth, &blit.dst.box); blit.mask = PIPE_MASK_RGBA; blit.filter = PIPE_TEX_FILTER_NEAREST; pipe->blit(pipe, &blit); } static void swizzled_copy(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) { const struct util_format_description *src_desc, *dst_desc; unsigned bits; enum pipe_format blit_src_format, blit_dst_format; /* Get equivalent canonical formats. Those are always array formats and * copying between compatible canonical formats behaves either like * memcpy or like swizzled memcpy. The idea is that we won't have to care * about the channel type from this point on. * Only the swizzle and channel size. */ blit_src_format = get_canonical_format(src->format); blit_dst_format = get_canonical_format(dst->format); assert(blit_src_format != PIPE_FORMAT_NONE); assert(blit_dst_format != PIPE_FORMAT_NONE); src_desc = util_format_description(blit_src_format); dst_desc = util_format_description(blit_dst_format); assert(src_desc->block.bits == dst_desc->block.bits); bits = src_desc->block.bits; if (dst_desc->channel[0].size == src_desc->channel[0].size) { /* Only the swizzle is different, which means we can just blit, * e.g. RGBA -> BGRA. */ } else if (has_identity_swizzle(src_desc)) { /* Src is unswizzled and dst can be swizzled, so src is typecast * to an equivalent dst-compatible format. * e.g. R32 -> BGRA8 is realized as RGBA8 -> BGRA8 */ blit_src_format = canonical_format_from_bits(bits, dst_desc->channel[0].size); } else if (has_identity_swizzle(dst_desc)) { /* Dst is unswizzled and src can be swizzled, so dst is typecast * to an equivalent src-compatible format. * e.g. BGRA8 -> R32 is realized as BGRA8 -> RGBA8 */ blit_dst_format = canonical_format_from_bits(bits, src_desc->channel[0].size); } else { assert(!"This should have been handled by handle_complex_copy."); return; } blit(pipe, dst, blit_dst_format, dst_level, dstx, dsty, dstz, src, blit_src_format, src_level, src_box); } static bool same_size_and_swizzle(const struct util_format_description *d1, const struct util_format_description *d2) { int i; if (d1->layout != d2->layout || d1->nr_channels != d2->nr_channels || d1->is_array != d2->is_array) return false; for (i = 0; i < d1->nr_channels; i++) { if (d1->channel[i].size != d2->channel[i].size) return false; if (d1->swizzle[i] <= PIPE_SWIZZLE_W && d2->swizzle[i] <= PIPE_SWIZZLE_W && d1->swizzle[i] != d2->swizzle[i]) return false; } return true; } static struct pipe_resource * create_texture(struct pipe_screen *screen, enum pipe_format format, unsigned nr_samples, unsigned width, unsigned height, unsigned depth) { struct pipe_resource templ; memset(&templ, 0, sizeof(templ)); templ.format = format; templ.width0 = width; templ.height0 = height; templ.depth0 = 1; templ.array_size = depth; templ.nr_samples = nr_samples; templ.usage = PIPE_USAGE_DEFAULT; templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; if (depth > 1) templ.target = PIPE_TEXTURE_2D_ARRAY; else templ.target = PIPE_TEXTURE_2D; return screen->resource_create(screen, &templ); } /** * Handle complex format conversions using 2 blits with a temporary texture * in between, e.g. blitting from B10G10R10A2 to G16R16. * * This example is implemented this way: * 1) First, blit from B10G10R10A2 to R10G10B10A2, which is canonical, so it * can be reinterpreted as a different canonical format of the same bpp, * such as R16G16. This blit only swaps R and B 10-bit components. * 2) Finally, blit the result, which is R10G10B10A2, as R16G16 to G16R16. * This blit only swaps R and G 16-bit components. */ static bool handle_complex_copy(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, enum pipe_format noncanon_format, enum pipe_format canon_format) { struct pipe_box temp_box; struct pipe_resource *temp = NULL; const struct util_format_description *src_desc, *dst_desc; const struct util_format_description *canon_desc, *noncanon_desc; bool src_is_canon; bool src_is_noncanon; bool dst_is_canon; bool dst_is_noncanon; src_desc = util_format_description(src->format); dst_desc = util_format_description(dst->format); canon_desc = util_format_description(canon_format); noncanon_desc = util_format_description(noncanon_format); src_is_canon = same_size_and_swizzle(src_desc, canon_desc); dst_is_canon = same_size_and_swizzle(dst_desc, canon_desc); src_is_noncanon = same_size_and_swizzle(src_desc, noncanon_desc); dst_is_noncanon = same_size_and_swizzle(dst_desc, noncanon_desc); if (src_is_noncanon) { /* Simple case - only types differ (e.g. UNORM and UINT). */ if (dst_is_noncanon) { blit(pipe, dst, noncanon_format, dst_level, dstx, dsty, dstz, src, noncanon_format, src_level, src_box); return true; } /* Simple case - only types and swizzles differ. */ if (dst_is_canon) { blit(pipe, dst, canon_format, dst_level, dstx, dsty, dstz, src, noncanon_format, src_level, src_box); return true; } /* Use the temporary texture. Src is converted to a canonical format, * then proceed the generic swizzled_copy. */ temp = create_texture(pipe->screen, canon_format, src->nr_samples, src_box->width, src_box->height, src_box->depth); u_box_3d(0, 0, 0, src_box->width, src_box->height, src_box->depth, &temp_box); blit(pipe, temp, canon_format, 0, 0, 0, 0, src, noncanon_format, src_level, src_box); swizzled_copy(pipe, dst, dst_level, dstx, dsty, dstz, temp, 0, &temp_box); pipe_resource_reference(&temp, NULL); return true; } if (dst_is_noncanon) { /* Simple case - only types and swizzles differ. */ if (src_is_canon) { blit(pipe, dst, noncanon_format, dst_level, dstx, dsty, dstz, src, canon_format, src_level, src_box); return true; } /* Use the temporary texture. First, use the generic copy, but use * a canonical format in the destination. Then convert */ temp = create_texture(pipe->screen, canon_format, dst->nr_samples, src_box->width, src_box->height, src_box->depth); u_box_3d(0, 0, 0, src_box->width, src_box->height, src_box->depth, &temp_box); swizzled_copy(pipe, temp, 0, 0, 0, 0, src, src_level, src_box); blit(pipe, dst, noncanon_format, dst_level, dstx, dsty, dstz, temp, canon_format, 0, &temp_box); pipe_resource_reference(&temp, NULL); return true; } return false; } static void copy_image(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) { if (src->format == dst->format || util_format_is_compressed(src->format) || util_format_is_compressed(dst->format)) { pipe->resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box); return; } /* Copying to/from B10G10R10*2 needs 2 blits with R10G10B10A2 * as a temporary texture in between. */ if (handle_complex_copy(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box, PIPE_FORMAT_B10G10R10A2_UINT, PIPE_FORMAT_R10G10B10A2_UINT)) return; /* Copying to/from G8R8 needs 2 blits with R8G8 as a temporary texture * in between. */ if (handle_complex_copy(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box, PIPE_FORMAT_G8R8_UNORM, PIPE_FORMAT_R8G8_UNORM)) return; /* Copying to/from G16R16 needs 2 blits with R16G16 as a temporary texture * in between. */ if (handle_complex_copy(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box, PIPE_FORMAT_G16R16_UNORM, PIPE_FORMAT_R16G16_UNORM)) return; /* Only allow non-identity swizzling on RGBA8 formats. */ /* Simple copy, memcpy with swizzling, no format conversion. */ swizzled_copy(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box); } static void st_CopyImageSubData(struct gl_context *ctx, struct gl_texture_image *src_image, struct gl_renderbuffer *src_renderbuffer, int src_x, int src_y, int src_z, struct gl_texture_image *dst_image, struct gl_renderbuffer *dst_renderbuffer, int dst_x, int dst_y, int dst_z, int src_width, int src_height) { struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; struct pipe_resource *src_res, *dst_res; struct pipe_box box; int src_level, dst_level; st_flush_bitmap_cache(st); st_invalidate_readpix_cache(st); if (src_image) { struct st_texture_image *src = st_texture_image(src_image); src_res = src->pt; src_level = src_image->Level; src_z += src_image->Face; if (src_image->TexObject->Immutable) { src_level += src_image->TexObject->MinLevel; src_z += src_image->TexObject->MinLayer; } } else { struct st_renderbuffer *src = st_renderbuffer(src_renderbuffer); src_res = src->texture; src_level = 0; } if (dst_image) { struct st_texture_image *dst = st_texture_image(dst_image); dst_res = dst->pt; dst_level = dst_image->Level; dst_z += dst_image->Face; if (dst_image->TexObject->Immutable) { dst_level += dst_image->TexObject->MinLevel; dst_z += dst_image->TexObject->MinLayer; } } else { struct st_renderbuffer *dst = st_renderbuffer(dst_renderbuffer); dst_res = dst->texture; dst_level = 0; } u_box_2d_zslice(src_x, src_y, src_z, src_width, src_height, &box); copy_image(pipe, dst_res, dst_level, dst_x, dst_y, dst_z, src_res, src_level, &box); } void st_init_copy_image_functions(struct dd_function_table *functions) { functions->CopyImageSubData = st_CopyImageSubData; }