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render: apply DCC clears before binding images

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Co-authored-by: Techx3 <56268269+Techx3@users.noreply.github.com>
Co-authored-by: Brandon Strong <brandostrong@gmail.com>
This commit is contained in:
nmzik
2026-09-06 08:00:59 +04:00
parent 0456f5a06b
commit 44f982bca7
11 changed files with 435 additions and 211 deletions
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src/graphics/guest_gpu/tile.cpp
+25
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@@ -1221,6 +1221,31 @@ bool TileGetRenderTargetSize(uint32_t width, uint32_t height, uint32_t pitch,
return true;
}
bool TileGetDccSize(uint32_t width, uint32_t height, uint32_t slices,
uint32_t bytes_per_element, uint32_t levels, Prospero::TileMode tile,
TileSizeAlign& total_size, uint32_t num_fragments_log2) {
total_size = {};
if (width == 0 || height == 0 || slices == 0 || levels != 1 || num_fragments_log2 != 0 ||
!std::has_single_bit(bytes_per_element) || bytes_per_element > 16 ||
(tile != Prospero::TileMode::kRenderTarget && tile != Prospero::TileMode::kDepth)) {
return false;
}
// Gen5 color metadata uses 4 KiB blocks, with one byte per 256 bytes of color data.
// Metadata stays thin for volume surfaces, so every depth slice has its own block raster.
const uint32_t coverage_bits = 20u - std::countr_zero(bytes_per_element);
const uint32_t block_width = 1u << ((coverage_bits + 1u) / 2u);
const uint32_t block_height = 1u << (coverage_bits / 2u);
const uint64_t blocks_x = (static_cast<uint64_t>(width) + block_width - 1u) / block_width;
const uint64_t blocks_y = (static_cast<uint64_t>(height) + block_height - 1u) / block_height;
const uint64_t blocks = blocks_x * blocks_y;
if (blocks > UINT32_MAX / 4096u / slices) {
return false;
}
total_size.size = static_cast<uint32_t>(blocks * slices * 4096u);
total_size.align = 4096;
return true;
}
bool TileGetRenderTargetMipLayout(uint32_t width, uint32_t height, uint32_t pitch,
uint32_t bytes_per_element, uint32_t levels,
TileSizeAlign& total_size, TileSizeOffset* level_sizes,