1 // Copyright (C) 2021 Harry Godden (hgn) - All Rights Reserved
12 #include "gl/glad/glad.h"
15 #define STB_DS_IMPLEMENTATION
16 #include "stb/stb_ds.h"
17 //#define STB_IMAGE_IMPLEMENTATION
18 //#include "stb/stb_image.h"
20 #define QOI_IMPLEMENTATION
21 #include "phoboslab/qoi.h"
23 #include "vg/vg_platform.h"
25 void vg_register_exit( void( *funcptr
)(void), const char *name
);
26 void vg_exiterr( const char *strErr
);
32 #include "vg/vg_gldiag.h"
37 GLFWwindow
* vg_window
;
42 #ifdef VG_CAPTURE_MODE
43 int vg_window_x
= 1920;
44 int vg_window_y
= 1080;
46 int vg_window_x
= 1366;
47 int vg_window_y
= 768;
59 #include "vg/vg_audio.h"
60 #include "vg/vg_shader.h"
61 #include "vg/vg_lines.h"
62 #include "vg/vg_tex.h"
63 #include "vg/vg_input.h"
65 #include "vg/vg_console.h"
66 #include "vg/vg_debug.h"
69 #include "vg/vg_steamworks.h"
73 // ===========================================================================================================
76 void vg_checkgl( const char *src_info
)
79 while( (err
= glGetError()) != GL_NO_ERROR
)
81 vg_error( "(%s) OpenGL Error: #%d\n", src_info
, err
);
85 #define VG_STRINGIT( X ) #X
86 #define VG_CHECK_GL() vg_checkgl( __FILE__ ":L" VG_STRINGIT(__LINE__) )
94 void( *vg_on_exit
[16] )(void);
95 u32 vg_exit_count
= 0;
97 // Add a shutdown step
98 void vg_register_exit( void( *funcptr
)(void), const char *name
)
100 vg_info( "exit registered: (%u)'%s'\n", vg_exit_count
, name
);
101 vg_on_exit
[ vg_exit_count
++ ] = funcptr
;
106 for( int i
= vg_exit_count
-1; i
>= 0; i
-- )
108 vg_info( "engine_exit[%d]()\n", i
);
115 // Forcefully exit program after error
116 void vg_exiterr( const char *strErr
)
118 vg_error( "Engine Fatal: %s\n", strErr
);
126 void vg_mouse_callback( GLFWwindow
* ptrW
, double xpos
, double ypos
)
132 void vg_scroll_callback( GLFWwindow
* ptrW
, double xoffset
, double yoffset
)
134 vg_mouse_wheel
[0] += xoffset
;
135 vg_mouse_wheel
[1] += yoffset
;
138 void vg_framebuffer_resize_callback( GLFWwindow
*ptrW
, int w
, int h
)
144 static void vg_register(void) VG_GAMELOOP
;
145 static void vg_start(void) VG_GAMELOOP
;
146 static void vg_update(void) VG_GAMELOOP
;
147 static void vg_render(void) VG_GAMELOOP
;
148 static void vg_ui(void) VG_GAMELOOP
;
149 static void vg_free(void) VG_GAMELOOP
;
151 static void vg_init( int argc
, char *argv
[], const char *window_name
)
154 // Initialize steamworks
160 // ==========================================================================================================================
162 glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR
, 3 );
163 glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR
, 3 );
164 glfwWindowHint( GLFW_OPENGL_PROFILE
, GLFW_OPENGL_CORE_PROFILE
);
165 glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT
, GL_TRUE
);
167 #ifdef VG_CAPTURE_MODE
168 glfwWindowHint( GLFW_RESIZABLE
, GLFW_FALSE
);
170 glfwWindowHint( GLFW_RESIZABLE
, GLFW_TRUE
);
173 glfwWindowHint( GLFW_SAMPLES
, 4 );
175 GLFWmonitor
*monitor_primary
= glfwGetPrimaryMonitor();
177 const GLFWvidmode
*mode
= glfwGetVideoMode( monitor_primary
);
178 glfwWindowHint( GLFW_RED_BITS
, mode
->redBits
);
179 glfwWindowHint( GLFW_GREEN_BITS
, mode
->greenBits
);
180 glfwWindowHint( GLFW_BLUE_BITS
, mode
->blueBits
);
181 glfwWindowHint( GLFW_REFRESH_RATE
, mode
->refreshRate
);
183 if( !(vg_window
= glfwCreateWindow( vg_window_x
, vg_window_y
, window_name
, NULL
, NULL
)) )
185 vg_exiterr( "GLFW Failed to initialize" );
189 vg_register_exit( &glfwTerminate
, "glfwTerminate" );
192 glfwMakeContextCurrent( vg_window
);
193 glfwSwapInterval( 1 );
196 glfwSetFramebufferSizeCallback( vg_window
, vg_framebuffer_resize_callback
);
198 glfwSetCursorPosCallback( vg_window
, vg_mouse_callback
);
199 glfwSetScrollCallback( vg_window
, vg_scroll_callback
);
201 glfwSetCharCallback( vg_window
, console_proc_wchar
);
202 glfwSetKeyCallback( vg_window
, console_proc_key
);
203 //glfwSetInputMode(vg_window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
205 if( !gladLoadGLLoader((GLADloadproc
)glfwGetProcAddress
) )
207 vg_exiterr( "Glad failed to initialize" );
210 const unsigned char* glver
= glGetString( GL_VERSION
);
211 vg_success( "Load setup complete, OpenGL version: %s\n", glver
);
213 vg_run_gfx_diagnostics();
215 for( int id
= 0; id
<= GLFW_JOYSTICK_LAST
; id
++ )
217 if( glfwJoystickIsGamepad( id
) )
219 vg_gamepad_name
= glfwGetGamepadName( id
);
220 vg_success( "Gamepad with mapping registered: %s\n", vg_gamepad_name
);
222 vg_gamepad_ready
= 1;
230 vg_register_exit( &vg_lines_free
, "vg_lines_free" );
232 vg_register_exit( &ui_default_free
, "UI" );
235 vg_register_exit( &vg_free
, "vg_free" );
237 if( vg_shaders_compile() )
242 vg_register_exit( &vg_console_free
, "Console" );
245 vg_register_exit( &vg_audio_free
, "vg_audio_free" );
247 vg_debugtools_setup();
250 while( !glfwWindowShouldClose( vg_window
) )
252 v2_copy( (v2f
){ 0.0f
, 0.0f
}, vg_mouse_wheel
);
260 vg_time_last
= vg_time
;
261 vg_time
= glfwGetTime();
262 vg_time_delta
= vg_minf( vg_time
- vg_time_last
, 0.1f
);
268 vg_lines_drawall((float*)vg_pv
);
271 ui_begin( &ui_global_ctx
, vg_window_x
, vg_window_y
);
272 ui_set_mouse( &ui_global_ctx
, vg_mouse
[0], vg_mouse
[1], vg_get_button_state( "primary" ) );
276 vg_debugtools_draw();
278 ui_resolve( &ui_global_ctx
);
279 ui_draw( &ui_global_ctx
, NULL
);
282 glfwSwapBuffers( vg_window
);
291 // Screen projections
292 // ============================================================================================
294 void vg_projection_update(void)
296 // Do transform local->world
297 vg_mouse_ws
[0] = vg_mouse
[0];
298 vg_mouse_ws
[1] = vg_mouse
[1];
299 vg_mouse_ws
[2] = 1.0f
;
301 vg_mouse_ws
[0] = (2.0f
* vg_mouse_ws
[0]) / ((float)vg_window_x
) - 1.0f
;
302 vg_mouse_ws
[1] = -((2.0f
* vg_mouse_ws
[1]) / ((float)vg_window_y
) - 1.0f
);
305 m3x3_inv( vg_pv
, inverse
);
306 m3x3_mulv( inverse
, vg_mouse_ws
, vg_mouse_ws
);
311 u32 NvOptimusEnablement
= 0x00000001;
312 int AmdPowerXpressRequestHighPerformance
= 1;