separate code

1 files changed, 57 insertions, 0 deletions

diff --git a/src/image.cpp b/src/image.cpp
new file mode 100644
index 0000000..ce0d739
--- /dev/null
+++ b/src/image.cpp
@@ -0,0 +1,57 @@
+#include "image.h"
+#include "definitions.h"
+
+#define STB_IMAGE_IMPLEMENTATION
+#include "../stb_image.h"
+
+ts_image img_logo;
+
+// Simple helper function to load an image into a OpenGL texture with common settings
+static bool _ts_load_texture(unsigned char* data, unsigned long size, GLuint* out_texture, int* out_width, int* out_height)
+{
+    // Load from file
+    int image_width = 0;
+    int image_height = 0;
+    unsigned char* image_data = stbi_load_from_memory(data, size, &image_width, &image_height, NULL, 4);
+    if (image_data == NULL) {
+		printf("Failed to load %s\n", stbi_failure_reason());
+        return false;
+	}
+
+    // Create a OpenGL texture identifier
+    GLuint image_texture;
+    glGenTextures(1, &image_texture);
+    glBindTexture(GL_TEXTURE_2D, image_texture);
+
+    // Setup filtering parameters for display
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+    // Upload pixels into texture
+#if defined(GL_UNPACK_ROW_LENGTH) && !defined(__EMSCRIPTEN__)
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+#endif
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image_width, image_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, image_data);
+    stbi_image_free(image_data);
+
+    *out_texture = image_texture;
+    *out_width = image_width;
+    *out_height = image_height;
+
+    return true;
+}
+
+static ts_image _ts_load_image(unsigned char* data, unsigned long size) {
+	int w = 0;
+	int h = 0;
+	GLuint id = 0;
+	bool ret = _ts_load_texture(data, size, &id, &w, &h);
+
+	return ts_image {id, w, h};
+}
+
+void ts_load_images() {
+	int size = _binary_misc_logo_64_png_end - _binary_misc_logo_64_png_start;
+	unsigned char* data = (unsigned char *)_binary_misc_logo_64_png_start;
+	img_logo = _ts_load_image(data, size);
+}
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