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Graphics: materialize CMASK clears before publishing expanded metadata

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This commit is contained in:
nmzik
2026-09-27 13:48:11 +04:00
parent da33a1c4a3
commit 0f1ff37f23
9 changed files with 164 additions and 118 deletions
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src/graphics/guest_gpu/tile.cpp
+27 -12
View File
@@ -1213,20 +1213,12 @@ 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)) {
static bool TileGetColorMetadataSize(uint32_t width, uint32_t height, uint32_t slices,
uint32_t block_width, uint32_t block_height,
TileSizeAlign& total_size) {
if (width == 0 || height == 0 || slices == 0) {
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;
@@ -1238,6 +1230,29 @@ bool TileGetDccSize(uint32_t width, uint32_t height, uint32_t slices,
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 (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 DCC 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);
return TileGetColorMetadataSize(width, height, slices, 1u << ((coverage_bits + 1u) / 2u),
1u << (coverage_bits / 2u), total_size);
}
bool TileGetCmaskSize(uint32_t width, uint32_t height, uint32_t slices, uint32_t levels,
TileSizeAlign& total_size) {
total_size = {};
// Gen5 CMASK stores four bits per 8x8 tile in 4 KiB blocks covering 1024x512 pixels.
return levels == 1 && TileGetColorMetadataSize(width, height, slices, 1024, 512, total_size);
}
void TileGetTextureSize(Prospero::BufferFormat format, uint32_t width, uint32_t height,
uint32_t levels, Prospero::TileMode tile, TileSizeAlign* total_size,
TileSizeOffset* level_sizes, TilePaddedSize* padded_size) {
src/graphics/guest_gpu/tile.h
+2
View File
@@ -126,6 +126,8 @@ bool TileGetRenderTargetSize(uint32_t width, uint32_t height, uint32_t pitch
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 = 0);
bool TileGetCmaskSize(uint32_t width, uint32_t height, uint32_t slices, uint32_t levels,
TileSizeAlign& total_size);
void TileGetTextureSize(Prospero::BufferFormat format, uint32_t width, uint32_t height,
uint32_t levels, Prospero::TileMode tile, TileSizeAlign* total_size,
TileSizeOffset* level_sizes, TilePaddedSize* padded_size);