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#include <assert.h>
#include "../sponge.h"
#define SPONGE_EXAMPLE_IMPLEMENTATION
#define SPONGE_EXAMPLE_INIT_DEFINED
#define SPONGE_EXAMPLE_MOUSE_MOVE_DEFINED
#include "../example.h"
#include "../stb_image.h"
sponge_Texture texture;
int32_t mouse_x;
int32_t mouse_y;
void init() {
unsigned char *data = stbi_load("examples/kot.png", &texture.width, &texture.height, NULL, 4);
if (!data) {
printf("%s\n", stbi_failure_reason());
assert(0);
}
texture.stride_pixels = texture.width;
texture.pixels = (sponge_Color32 *)data; // NOTE(kard): be careful if changing following loop
// converting from stbi's RGBA
for (size_t i = 0; i < texture.width * texture.height; i++) {
sponge_Color32 result;
result.r = data[i * 4 + 0];
result.g = data[i * 4 + 1];
result.b = data[i * 4 + 2];
result.a = data[i * 4 + 3];
texture.pixels[i] = result;
}
mouse_x = 100;
mouse_y = 100;
}
void mouse_move(int32_t x, int32_t y) {
mouse_x = x;
mouse_y = y;
}
void draw_frame(sponge_Texture c) {
sponge_clear(c, sponge_color32_make(0xFF000000));
sponge_Vec2I v0 = sponge_vec2i_make(mouse_x, mouse_y);
sponge_Vec2I v1 = sponge_vec2i_make(c.width - 100, 100);
sponge_Vec2I v2 = sponge_vec2i_make(100, c.height - 100);
sponge_Vec2I v3 = sponge_vec2i_make(c.width - 100, c.height - 100);
sponge_Vec2 uv0 = sponge_vec2_make(0.0f, 0.0f);
sponge_Vec2 uv1 = sponge_vec2_make(1.0f, 0.0f);
sponge_Vec2 uv2 = sponge_vec2_make(0.0f, 1.0f);
sponge_Vec2 uv3 = sponge_vec2_make(1.0f, 1.0f);
sponge_draw_triangle_uv(c, v0, v1, v3, uv0, uv1, uv3, texture);
sponge_draw_triangle_uv(c, v0, v3, v2, uv0, uv3, uv2, texture);
}
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