glerminal/tests/test-common/test-common.cpp

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#include <test-common.h>
#include <glerminal.h>
#include <glad/glad.h>
#define STB_IMAGE_WRITE_IMPLEMENTATION
#include <stb_image_write.h>
namespace
{
unsigned char pixels[(GRID_WIDTH * 8) * (GRID_HEIGHT * 8) * 3];
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}
void glerminal_test_save_image()
{
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// -- DIRTY HACK --
//
// GL_TEXTURE_2D is not rebound after setting up screen framebuffer
// This code will break if this behavior changes
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glGetTexImage(GL_TEXTURE_2D, 0, GL_RGB, GL_UNSIGNED_BYTE, pixels);
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stbi_flip_vertically_on_write(true);
stbi_write_png("image.png", GRID_WIDTH * 8, GRID_HEIGHT * 8, 3, pixels, GRID_WIDTH * 8 * 3);
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}