1 files changed, 55 insertions, 0 deletions
diff --git a/mons_3d/src/texture.c b/mons_3d/src/texture.c
new file mode 100644
index 0000000..7b2a478
--- /dev/null
+++ b/mons_3d/src/texture.c
@@ -0,0 +1,55 @@
+#include "texture.h"
+#include "qoi.h"
+
+#include <glad/gl.h>
+
+mons_texture mons_texture_load(FILE *stream) {
+    mons_image image = mons_load_qoi(stream);
+    return mons_texture_from_image(image);
+}
+
+mons_texture mons_texture_from_image(mons_image image) {
+    glTextureParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+    glTextureParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+    glTextureParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+                        GL_NEAREST_MIPMAP_LINEAR);
+    glTextureParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    unsigned int texture;
+    glGenTextures(1, &texture);
+    glBindTexture(GL_TEXTURE_2D, texture);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.width, image.height, 0,
+                 GL_RGBA, GL_UNSIGNED_BYTE, image.data);
+    glGenerateMipmap(GL_TEXTURE_2D);
+    mons_texture result = {
+        .id = texture,
+        .width = image.width,
+        .height = image.height,
+    };
+    mons_image_free(&image);
+    return result;
+}
+
+char *texure_uniforms[16] = {
+    "base_texture",
+    "normal_texture",
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+};
+
+void mons_texture_bind(mons_program shader, unsigned int unit, mons_texture texture) {
+    glActiveTexture(GL_TEXTURE0 + unit);
+    glUniform1i(glGetUniformLocation(shader, texure_uniforms[unit]), unit);
+    glBindTexture(GL_TEXTURE_2D, texture.id);
+}