From faa74e2c942102a9b1aa215a913fddf422714d7e Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Fri, 22 Oct 2021 03:35:27 +0200
Subject: Add shader

---
 tests/main.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'tests/main.c')

diff --git a/tests/main.c b/tests/main.c
index 8631c35..0e6e199 100644
--- a/tests/main.c
+++ b/tests/main.c
@@ -8,11 +8,13 @@
 #include <mgl/graphics/font.h>
 #include <mgl/graphics/text.h>
 #include <mgl/graphics/vertex_buffer.h>
+#include <mgl/graphics/shader.h>
 
 typedef struct {
     mgl_texture *texture;
     mgl_font *font;
     mgl_vertex_buffer *vertex_buffer;
+    mgl_shader_program *shader_program;
 } Userdata;
 
 static void draw(mgl_window *window, void *userdata) {
@@ -26,10 +28,15 @@ static void draw(mgl_window *window, void *userdata) {
     };
     mgl_rectangle_draw(context, &rect);
 
+    /*mgl_shader_program_set_uniform_texture2d(u->shader_program, "texture", u->texture);*/
+    mgl_shader_program_set_uniform_vec2f(u->shader_program, "resolution", (mgl_vec2f){ window->size.x, window->size.y });
+
     mgl_sprite sprite;
     mgl_sprite_init(&sprite, u->texture, 100.0f - 10.0f, 0.0f);
     mgl_sprite_set_color(&sprite, (mgl_color){255, 255, 255, 128});
+    mgl_shader_program_use(u->shader_program);
     mgl_sprite_draw(context, &sprite);
+    mgl_shader_program_use(NULL);
 
     mgl_text text;
     mgl_text_init(&text, u->font, "hello world!\nGood bye world!", 0.0f, 0.0f);
@@ -47,11 +54,13 @@ int main(int argc, char **argv) {
     mgl_texture texture;
     mgl_font font;
     mgl_vertex_buffer vertex_buffer;
+    mgl_shader_program shader_program;
 
     Userdata userdata;
     userdata.texture = &texture;
     userdata.font = &font;
     userdata.vertex_buffer = &vertex_buffer;
+    userdata.shader_program = &shader_program;
 
     mgl_window window;
     if(mgl_window_create(&window, "mgl", 1280, 720) != 0)
@@ -63,6 +72,15 @@ int main(int argc, char **argv) {
     if(mgl_font_load_from_file(&font, "/usr/share/fonts/noto/NotoSans-Regular.ttf", 32) != 0)
         return 1;
 
+    if(mgl_shader_program_init(&shader_program) != 0)
+        return 1;
+
+    if(mgl_shader_program_add_shader_from_file(&shader_program, "tests/circle_mask.glsl", MGL_SHADER_FRAGMENT) != 0)
+        return 1;
+
+    if(mgl_shader_program_finalize(&shader_program) != 0)
+        return 1;
+
     if(mgl_vertex_buffer_init(&vertex_buffer, MGL_PRIMITIVE_QUADS, MGL_USAGE_STATIC) != 0)
         return 1;
 
@@ -106,6 +124,7 @@ int main(int argc, char **argv) {
     }
 
     mgl_vertex_buffer_deinit(&vertex_buffer);
+    mgl_shader_program_deinit(&shader_program);
     mgl_font_unload(&font);
     mgl_texture_unload(&texture);
     mgl_window_deinit(&window);
-- 
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