From 33dd2214a8a917310b87ef0f9ab75cdb0b35a5dd Mon Sep 17 00:00:00 2001
From: Martin Fouilleul <martinfouilleul@gmail.com>
Date: Thu, 11 May 2023 18:31:20 +0200
Subject: [PATCH] merge io into image

---
 samples/pong/src/main.c | 45 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

diff --git a/samples/pong/src/main.c b/samples/pong/src/main.c
index 65ec5ff..4986b52 100644
--- a/samples/pong/src/main.c
+++ b/samples/pong/src/main.c
@@ -33,6 +33,12 @@ bool rightDown = false;
 mg_canvas canvas;
 mg_surface surface;
 
+#define TEST_IMAGE 1
+
+#ifdef TEST_IMAGE
+mg_image image;
+#endif
+
 mg_surface mg_surface_main(void);
 
 void OnInit(void)
@@ -41,13 +47,44 @@ void OnInit(void)
 	surface = mg_surface_main();
 	canvas = mg_canvas_create();
 
-	file_handle file = file_open(STR8("/test_write.txt")	, IO_OPEN_CREATE | IO_OPEN_WRITE);
+#ifdef TEST_IMAGE
+	// create an image with a checkerboard pattern
+	u8 pixels[11*11*4];
+	for(int i=0; i<11*11/2; i++)
+	{
+		pixels[8*i] = 0;
+		pixels[8*i+1] = 0;
+		pixels[8*i+2] = 0;
+		pixels[8*i+3] = 255;
+		pixels[8*i+4] = 255;
+		pixels[8*i+5] = 255;
+		pixels[8*i+6] = 255;
+		pixels[8*i+7] = 255;
+	}
+	image = mg_image_create_from_rgba8(surface, 11, 11, pixels);
+
+	/*TODO Once we have file io and stb_image:
+
+		file_handle file = file_open(STR8("test.png"), FILE_OPEN_READ);
+		u64 size = file_size(file);
+		u8* data = mem_arena_alloc_array(mem_scratch(), u8, size);
+		file_read(file, size, data);
+		file_close(file);
+
+		image = mg_image_create_from_data(surface, size, data); // --> that will call stbi_load_from_memory(), see milepost/src/graphics_common.c
+
+		mem_arena_clear(mem_scratch());
+	*/
+#endif // TEST_IMAGE
+
+	//NOTE: testing file io
+	file_handle file = file_open(STR8("/test_write.txt"), IO_OPEN_CREATE | IO_OPEN_WRITE);
 
 	str8 string = STR8("Hello, file!\n");
 	file_write(file, string.len, string.ptr);
 	file_close(file);
 
-	file = file_open(STR8("/dir1/test_read.txt")	, IO_OPEN_READ);
+	file = file_open(STR8("/dir1/test_read.txt"), IO_OPEN_READ);
 	u64 size = file_size(file);
 	char* buffer = mem_arena_alloc(mem_scratch(), size);
 	file_read(file, size, buffer);
@@ -172,8 +209,12 @@ void OnFrameRefresh(void)
 	mg_set_color(paddleColor);
 	mg_rectangle_fill(paddle.x, paddle.y, paddle.w, paddle.h);
 
+#ifdef TEST_IMAGE
+	mg_image_draw(image, ball);
+#else
 	mg_set_color(ballColor);
 	mg_circle_fill(ball.x+ball.w/2, ball.y + ball.w/2, ball.w/2.);
+#endif
 
     mg_matrix_pop();