mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 10:19:47 -04:00
Matthew Stanley
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
#ifndef PSX_TEXTURE_IMAGE_DECODE_H
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#define PSX_TEXTURE_IMAGE_DECODE_H
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#include <cstddef>
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#include <cstdint>
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#include <string>
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#include <vector>
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enum class TextureImageFormat { Png, Jpeg, WebP };
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struct TextureImageProbe {
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uint32_t width = 0;
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uint32_t height = 0;
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TextureImageFormat format = TextureImageFormat::Png;
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};
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struct DecodedTextureImage {
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uint32_t width = 0;
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uint32_t height = 0;
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std::vector<uint8_t> rgba;
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};
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constexpr size_t TEXTURE_IMAGE_MAX_ENCODED_BYTES = 64u * 1024u * 1024u;
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constexpr size_t TEXTURE_IMAGE_DEFAULT_DECODED_BUDGET = 64u * 1024u * 1024u;
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constexpr uint32_t TEXTURE_IMAGE_MAX_DIMENSION = 8192;
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// Encoded bytes are supplied by the caller: these helpers perform no I/O.
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// Limits are checked before allocating decoded pixels. RGBA alpha is retained
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// verbatim; the texture renderer separately classifies PSX transparency.
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bool texture_image_probe(const uint8_t* encoded, size_t encoded_size,
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size_t decoded_budget, TextureImageProbe& probe,
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std::string& error);
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bool texture_image_decode(const uint8_t* encoded, size_t encoded_size,
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size_t decoded_budget, DecodedTextureImage& image,
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std::string& error);
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#endif
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