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22 lines
719 B
C++
22 lines
719 B
C++
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#include <vector>
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#include "common/assert.h"
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#include "common/common_types.h"
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namespace Common {
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void FlipRGBA8Texture(std::vector<u8>& tex, u64 width, u64 height) {
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ASSERT(tex.size() == width * height * 4);
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const u64 line_size = width * 4;
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u8* temp_row = new u8[line_size];
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u32 offset_1;
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u32 offset_2;
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for (u64 line = 0; line < height / 2; line++) {
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offset_1 = line * line_size;
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offset_2 = (height - line - 1) * line_size;
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// Swap lines
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std::memcpy(temp_row, &tex[offset_1], line_size);
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std::memcpy(&tex[offset_1], &tex[offset_2], line_size);
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std::memcpy(&tex[offset_2], temp_row, line_size);
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}
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delete[] temp_row;
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}
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} // namespace Common
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