From 3b2e7cc2347d88dbd8d7697a7cbd8354e7728fc0 Mon Sep 17 00:00:00 2001
From: Charles <sircharlesaze@gmail.com>
Date: Tue, 19 May 2020 21:41:09 +0200
Subject: Added OpenGL boilerplate

---
 inc/mandel.h | 39 +++++++++++++++++++++++++++++++++++----
 1 file changed, 35 insertions(+), 4 deletions(-)

(limited to 'inc')

diff --git a/inc/mandel.h b/inc/mandel.h
index a98e007..f55466c 100644
--- a/inc/mandel.h
+++ b/inc/mandel.h
@@ -1,18 +1,27 @@
 #ifndef MANDEL_H
 # define MANDEL_H
 
+# include <stdio.h>
 # include <stdlib.h>
 # include <stdbool.h>
 # include <math.h>
-# include <immintrin.h>
+# include <GL/glew.h>
 # include <SDL2/SDL.h>
 
+# include <assert.h>
+
 #define SDL_CALL(x) do {                     \
 	SDL_ClearError();                        \
 	x;                                       \
 	error_check_sdl(#x, __FILE__, __LINE__); \
 } while (0)
 
+# define GL_CALL(x) do {                    \
+	error_clear_gl();                       \
+	x;                                      \
+	error_check_gl(#x, __FILE__, __LINE__); \
+} while (0)
+
 typedef union
 {
     uint32_t		data;
@@ -37,13 +46,30 @@ typedef struct
     double			y;
 }					Point;
 
+typedef struct
+{
+	unsigned int	id;
+	struct
+	{
+		int			iteration;
+	}				location;
+}					Shader;
+
 typedef struct
 {
     SDL_Window		*window;
-    SDL_Renderer	*renderer;
+	SDL_GLContext	context;
     bool			running;
-	SDL_Texture		*texture;
-    Color			*palette;
+	int				width;
+	int				height;
+
+	unsigned int	vertex_buf;
+	unsigned int	texture;
+
+	Shader			shader;
+
+    // Color			*palette;
+
 	double			real_start;
 	double			real_end;
 	double			imag_start;
@@ -64,8 +90,13 @@ void				event_handle(State *state);
 
 // error.c
 void				error_check_sdl(const char *code, const char *filename, int line_num);
+void				error_clear_gl(void);
+void				error_check_gl(const char *code, const char *filename, int line_num);
 
 // color.c
 Color				*color_palette_new(Color *palette, int iterations);
 
+// shader.c
+bool				shader_init(Shader *shader);
+
 #endif
-- 
cgit