Add basic block textures

- Remove the code that sent colors through uniform variables, instead
  send texture data
- Each vertex now has a texture coordinate
- struct texture is a easy way to represent textures, can be extended
  later
- Shaders updated to use textures

1 files changed, 26 insertions, 0 deletions

diff --git a/src/texture.c b/src/texture.c
new file mode 100644
index 0000000..8f2a2a7
--- /dev/null
+++ b/src/texture.c
@@ -0,0 +1,26 @@
+#include "texture.h"
+#include "cglm/io.h"
+#include "util.h"
+#define STB_IMAGE_IMPLEMENTATION
+#include "stb/stb_image.h"
+#include <stdlib.h>
+#include <string.h>
+void texture_init(struct texture** texture) {
+    *texture = malloc(sizeof(struct texture));
+    memset(*texture, 0, sizeof(struct texture));
+}
+
+void texture_load(struct texture* texture, char* path) {
+    int width, height, nr_channels;
+    unsigned char *data = stbi_load(path, &width, &height, &nr_channels, 0);
+    vec2 size = { width, height };
+    glm_vec2_print(size, stderr);
+    create_texture(&texture->_tbo, data, size);
+    stbi_image_free(data);
+    fprintf(stderr, "Loaded texture\n");
+}
+
+void texture_draw(struct texture* texture) {
+    glActiveTexture(GL_TEXTURE0);
+    glBindTexture(GL_TEXTURE_2D, texture->_tbo);
+}