4ddd7f1c6f
Batch #15786 by Yommy: 0 byte-identical, 1 confirmed by peer review. - fn_07871 BitmapImage::DecodeJpeg: logic confirmed by peer review Peer-reviewed-by: eAthena, Tanke Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
#include "Resource/Bitmap/BitmapImage.h"
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#include "Resource/Bitmap/IJL15Runtime.h"
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#include <cstdlib>
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// OFFSET: 0x0074BCC0
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// FUNCTION: fn_07871
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bool BitmapImage::DecodeJpeg(const void* data, int bytes) {
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IJL15Properties properties = {};
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if (ijlInit(&properties) != 0) {
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return false;
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}
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properties.jpegSize = bytes;
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properties.jpegBytes = const_cast<unsigned char*>(static_cast<const unsigned char*>(data));
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unsigned char* source;
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if (ijlRead(&properties, 1) == 0) {
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this->width = properties.jpegWidth;
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this->height = properties.jpegHeight;
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source = new unsigned char[properties.jpegHeight * properties.jpegWidth * 3];
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this->pixels = new std::uint32_t[this->height * this->width];
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properties.dibWidth = this->width;
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properties.dibHeight = this->height;
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properties.dibBytes = source;
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properties.dibColor = 2;
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properties.dibChannels = 3;
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properties.dibPadding = 0;
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if (ijlRead(&properties, 3) != 0) {
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delete[] source;
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delete[] this->pixels;
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this->pixels = nullptr;
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return false;
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}
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} else {
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source = reinterpret_cast<unsigned char*>(this);
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}
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ijlFree(&properties);
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for (int y = 0; y < this->height; ++y) {
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std::uint32_t* out = &this->pixels[this->width * y];
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const unsigned char* input = &source[3 * this->width * y];
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if (!input) {
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return false;
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}
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for (int x = 0; x < this->width; ++x) {
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const unsigned red = input[2];
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const unsigned blue = input[0];
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const unsigned green = input[1];
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*out++ = red >= 254 && green <= 3 && blue >= 254 ? 0x000A0A0Au : (((((0xFFu << 8) + red) << 8) + green) << 8) + blue;
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input += 3;
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}
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}
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delete[] source;
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this->alpha = 0;
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return true;
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}
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