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Reworked TextureFormat properties; removed CMake target
IGLLibrary
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| /* | ||
| * LightweightVK | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
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| #pragma once | ||
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| #include "LVK.h" | ||
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| namespace { | ||
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| struct TextureFormatProperties { | ||
| const igl::TextureFormat format = igl::TextureFormat::Invalid; | ||
| const uint8_t bytesPerBlock : 5 = 1; | ||
| const uint8_t blockWidth : 4 = 1; | ||
| const uint8_t blockHeight : 4 = 1; | ||
| const uint8_t minBlocksX : 2 = 1; | ||
| const uint8_t minBlocksY : 2 = 1; | ||
| const bool depth : 1 = false; | ||
| const bool stencil : 1 = false; | ||
| const bool compressed : 1 = false; | ||
| }; | ||
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| #define PROPS(fmt, bpb, ...) \ | ||
| TextureFormatProperties{ .format = igl::TextureFormat::fmt, .bytesPerBlock = bpb, ##__VA_ARGS__ } | ||
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| static constexpr TextureFormatProperties properties[] = { | ||
| PROPS(Invalid, 1), | ||
| PROPS(R_UN8, 1), | ||
| PROPS(R_UI16, 2), | ||
| PROPS(R_UN16, 2), | ||
| PROPS(R_F16, 2), | ||
| PROPS(R_F32, 4), | ||
| PROPS(RG_UN8, 2), | ||
| PROPS(RG_UI16, 4), | ||
| PROPS(RG_UN16, 4), | ||
| PROPS(RG_F16, 4), | ||
| PROPS(RG_F32, 8), | ||
| PROPS(RGBA_UN8, 4), | ||
| PROPS(RGBA_UI32, 16), | ||
| PROPS(RGBA_F16, 8), | ||
| PROPS(RGBA_F32, 16), | ||
| PROPS(RGBA_SRGB8, 4), | ||
| PROPS(BGRA_UN8, 4), | ||
| PROPS(BGRA_SRGB8, 4), | ||
| PROPS(ETC2_RGB8, 8, .blockWidth = 4, .blockHeight = 4, .compressed = true), | ||
| PROPS(ETC2_SRGB8, 8, .blockWidth = 4, .blockHeight = 4, .compressed = true), | ||
| PROPS(BC7_RGBA, 16, .blockWidth = 4, .blockHeight = 4, .compressed = true), | ||
| PROPS(Z_UN16, 2, .depth = true), | ||
| PROPS(Z_UN24, 3, .depth = true), | ||
| PROPS(Z_F32, 4, .depth = true), | ||
| PROPS(Z_UN24_S_UI8, 4, .depth = true, .stencil = true), | ||
| }; | ||
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| } // namespace | ||
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| static_assert(sizeof(TextureFormatProperties) <= sizeof(uint32_t)); | ||
| static_assert(IGL_ARRAY_NUM_ELEMENTS(properties) == igl::TextureFormat::Z_UN24_S_UI8 + 1); | ||
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| bool lvk::isDepthOrStencilFormat(igl::TextureFormat format) { | ||
| return properties[format].depth || properties[format].stencil; | ||
| } | ||
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| uint32_t lvk::getTextureBytesPerLayer(uint32_t width, | ||
| uint32_t height, | ||
| igl::TextureFormat format, | ||
| uint32_t level) { | ||
| const uint32_t levelWidth = std::max(width >> level, 1u); | ||
| const uint32_t levelHeight = std::max(height >> level, 1u); | ||
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| const auto props = properties[format]; | ||
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| if (!props.compressed) { | ||
| return props.bytesPerBlock * levelWidth * levelHeight; | ||
| } | ||
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| const uint32_t blockWidth = std::max((uint32_t)props.blockWidth, 1u); | ||
| const uint32_t blockHeight = std::max((uint32_t)props.blockHeight, 1u); | ||
| const uint32_t widthInBlocks = (levelWidth + props.blockWidth - 1) / props.blockWidth; | ||
| const uint32_t heightInBlocks = (levelHeight + props.blockHeight - 1) / props.blockHeight; | ||
| return widthInBlocks * heightInBlocks * props.bytesPerBlock; | ||
| } | ||
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| uint32_t lvk::calcNumMipLevels(uint32_t width, uint32_t height) { | ||
| assert(width > 0); | ||
| assert(height > 0); | ||
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| uint32_t levels = 1; | ||
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| while ((width | height) >> levels) { | ||
| levels++; | ||
| } | ||
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| return levels; | ||
| } | ||
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| bool lvk::Assert(bool cond, const char* file, int line, const char* format, ...) { | ||
| if (!cond) { | ||
| va_list ap; | ||
| va_start(ap, format); | ||
| LLOGW("[LVK] Assertion failed in %s:%d: ", file, line); | ||
| LLOGW(format, ap); | ||
| va_end(ap); | ||
| assert(false); | ||
| } | ||
| return cond; | ||
| } |
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