mirror of https://github.com/Chlumsky/msdfgen.git
39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
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#include "save-png.h"
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#include <lodepng.h>
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#include "../core/pixel-conversion.hpp"
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namespace msdfgen {
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bool savePng(const BitmapConstRef<byte, 1> &bitmap, const char *filename) {
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return !lodepng::encode(filename, bitmap.pixels, bitmap.width, bitmap.height, LCT_GREY);
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}
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bool savePng(const BitmapConstRef<byte, 3> &bitmap, const char *filename) {
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return !lodepng::encode(filename, bitmap.pixels, bitmap.width, bitmap.height, LCT_RGB);
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}
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bool savePng(const BitmapConstRef<float, 1> &bitmap, const char *filename) {
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std::vector<byte> pixels(bitmap.width*bitmap.height);
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std::vector<byte>::iterator it = pixels.begin();
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for (int y = bitmap.height-1; y >= 0; --y)
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for (int x = 0; x < bitmap.width; ++x)
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*it++ = pixelFloatToByte(*bitmap(x, y));
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return !lodepng::encode(filename, pixels, bitmap.width, bitmap.height, LCT_GREY);
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}
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bool savePng(const BitmapConstRef<float, 3> &bitmap, const char *filename) {
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std::vector<byte> pixels(3*bitmap.width*bitmap.height);
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std::vector<byte>::iterator it = pixels.begin();
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for (int y = bitmap.height-1; y >= 0; --y)
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for (int x = 0; x < bitmap.width; ++x) {
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*it++ = pixelFloatToByte(bitmap(x, y)[0]);
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*it++ = pixelFloatToByte(bitmap(x, y)[1]);
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*it++ = pixelFloatToByte(bitmap(x, y)[2]);
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}
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return !lodepng::encode(filename, pixels, bitmap.width, bitmap.height, LCT_RGB);
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}
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}
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