win_opengl: (WIP)UI for options. Add comments to help find conditionals that put opengl in dev_branch.

src/include/86box/86box.h

@@ -90,7 +90,10 @@ extern int	vid_cga_contrast,		/* (C) video */
 		video_fullscreen_scale,		/* (C) video */
 		enable_overscan,		/* (C) video */
 		force_43,			/* (C) video */
+		video_vsync,			/* (C) video */
+		video_frametime,		/* (C) video */
 		gfxcard;			/* (C) graphics/video card */
+extern char	video_shader[512];		/* (C) video */
 extern int	serial_enabled[],		/* (C) enable serial ports */
 		bugger_enabled,			/* (C) enable ISAbugger */
 		postcard_enabled,		/* (C) enable POST card */

src/include/86box/language.h

@@ -116,6 +116,7 @@
 #define IDS_2140	2140		// "CD-ROM images (*.ISO;*.CU.."
 #define IDS_2141	2141		// "%hs Device Configuration"
 #define IDS_2142	2142		// "Monitor in sleep mode"
+#define IDS_2143	2143		// "OpenGL Shaders (*.GLSL)..."
 
 #define IDS_4096	4096		// "Hard disk (%s)"
 #define IDS_4097	4097		// "%01i:%01i"
@@ -223,7 +224,7 @@
 
 #define IDS_LANG_ENUS	IDS_7168
 
-#define STR_NUM_2048	95
+#define STR_NUM_2048	96
 #define STR_NUM_3072	11
 #define STR_NUM_4096	39
 #define STR_NUM_4352	6

src/include/86box/resource.h

@@ -341,6 +341,17 @@
 #define IDM_DISCORD		40090
 #endif
 
+#ifdef DEV_BRANCH /* feature-opengl */
+#define IDM_VID_GL_FPS_BLITTER	40100
+#define IDM_VID_GL_FPS_25	40101
+#define IDM_VID_GL_FPS_30	40102
+#define IDM_VID_GL_FPS_50	40103
+#define IDM_VID_GL_FPS_60	40104
+#define IDM_VID_GL_FPS_75	40105
+#define IDM_VID_GL_VSYNC	40106
+#define IDM_VID_GL_SHADER	40107
+#endif
+
 #define IDM_LOG_BREAKPOINT	51201
 #define IDM_DUMP_VRAM		51202	// should be an Action
 

src/include/86box/win_opengl_glslp.h

@@ -17,7 +17,7 @@
 
 #include <glad/glad.h>
 
-GLuint load_custom_shaders();
+GLuint load_custom_shaders(const char* path);
 GLuint load_default_shaders();
 
 #endif /*!WIN_OPENGL_GLSLP_H*/