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simple_aspng_surface.cpp
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simple_aspng_surface.cpp
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#include <cstring>
#include "common.h"
#include "simple_aspng_surface.h"
SimpleAspngSurface::SimpleAspngSurface(int32_t w, int32_t h) {
this->width = w;
this->height = h;
this->pixels.resize(w * h);
}
void SimpleAspngSurface::resize(int32_t w, int32_t h) {
std::vector<Rgb> new_pixels(w * h);
for (int32_t x = 0; x < this->width; x++) {
for (int32_t y = 0; y < this->height; y++) {
if ((x < w) && (y < h)) {
new_pixels[(w * y) + x] = this->pixels[(this->width * y) + x];
}
}
}
this->pixels = new_pixels;
this->width = w;
this->height = h;
}
int32_t SimpleAspngSurface::get_width(void) {
return this->width;
}
int32_t SimpleAspngSurface::get_height(void) {
return this->height;
}
Rgb SimpleAspngSurface::get_pixel(int32_t x, int32_t y) {
ASSERT((x >= 0) && (x < this->width));
ASSERT((y >= 0) && (y < this->height));
return this->pixels[(this->width * y) + x];
}
void SimpleAspngSurface::set_pixel(int32_t x, int32_t y, Rgb rgb) {
ASSERT((x >= 0) && (x < this->width));
ASSERT((y >= 0) && (y < this->height));
this->pixels[(this->width * y) + x] = rgb;
}