X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=vg%2Fvg.h;h=b35091b5aa5e2779e39c64ccf76bdad1dee225ee;hb=bd3188f0fe52c9231f79af85d6cfaef2576b9f83;hp=28aa229d3515b735bbb51e4f7e24d64bc190e13f;hpb=79c56f6fa4b07352dd7cce8627246f04508955a7;p=fishladder.git

diff --git a/vg/vg.h b/vg/vg.h
index 28aa229..b35091b 100644
--- a/vg/vg.h
+++ b/vg/vg.h
@@ -11,15 +11,23 @@
 #include "gl/glfw3.h"
 
 #define STB_DS_IMPLEMENTATION
+#define STB_IMAGE_IMPLEMENTATION
 #include "stb/stb_ds.h"
+#include "stb/stb_image.h"
+
+#include "vg/vg_platform.h"
 
 void vg_register_exit( void( *funcptr )(void), const char *name );
 void vg_exiterr( const char *strErr );
 
-#include "vg/vg_platform.h"
+m3x3f vg_pv;
+
+#include "vg/vg_m.h"
 #include "vg/vg_io.h"
 #include "vg/vg_audio.h"
 #include "vg/vg_shader.h"
+#include "vg/vg_lines.h"
+#include "vg/vg_tex.h"
 
 #include "steam/steamworks_thin.h"
 
@@ -33,8 +41,8 @@ GLFWwindow* vg_window;
 int vg_window_x = 1280;
 int vg_window_y = 720;
 
-float vg_mouse_x;
-float vg_mouse_y;
+v2f vg_mouse;
+v3f vg_mouse_ws;
 
 float	vg_time;
 float	vg_time_last;
@@ -179,6 +187,23 @@ void vg_update_inputs(void)
 // Engine main
 // ===========================================================================================================
 
+#ifndef VG_RELEASE
+void vg_checkgl( const char *src_info )
+{
+	GLenum err;
+	while( (err = glGetError()) != GL_NO_ERROR )
+	{
+		vg_error( "(%s) OpenGL Error: #%d\n", src_info, err );
+	}
+}
+
+ #define VG_STRINGIT( X ) #X
+ #define VG_CHECK_GL() vg_checkgl( __FILE__ ":L" VG_STRINGIT(__LINE__) )
+#else
+ #define VG_CHECK_GL()
+#endif
+
+
 #define VG_GAMELOOP
 
 void( *vg_on_exit[16] )(void);
@@ -215,8 +240,8 @@ void vg_exiterr( const char *strErr )
 
 void vg_mouse_callback( GLFWwindow* ptrW, double xpos, double ypos )
 {
-	vg_mouse_x = xpos;
-	vg_mouse_y = ypos;
+	vg_mouse[0] = xpos;
+	vg_mouse[1] = ypos;
 }
 
 void vg_scroll_callback( GLFWwindow* ptrW, double xoffset, double yoffset )
@@ -230,6 +255,7 @@ void vg_framebuffer_resize_callback( GLFWwindow *ptrW, int w, int h )
 	vg_window_y = h;
 }
 
+static void vg_register(void) VG_GAMELOOP;
 static void vg_start(void) VG_GAMELOOP;
 static void vg_update(void) VG_GAMELOOP;
 static void vg_render(void) VG_GAMELOOP;
@@ -258,7 +284,7 @@ static void vg_init( int argc, char *argv[], const char *window_name )
 	glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );
 	glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GL_TRUE );
 	
-	glfwWindowHint( GLFW_SAMPLES, 4 );
+	glfwWindowHint( GLFW_SAMPLES, 1 );
 	
 	GLFWmonitor *monitor_primary = glfwGetPrimaryMonitor();
 	
@@ -314,10 +340,16 @@ static void vg_init( int argc, char *argv[], const char *window_name )
 	
 	vg_audio_init();
 	vg_register_exit( &vg_audio_free, "vg_audio_free" );
+	vg_lines_init();
+	vg_register_exit( &vg_lines_free, "vg_lines_free" );
+	
+	vg_register();
+	vg_register_exit( &vg_free, "vg_free" );
 	
-	vg_start();
 	if( vg_shaders_compile() )
 	{
+		vg_start();
+	
 		// Main gameloop
 		while( !glfwWindowShouldClose( vg_window ) )
 		{
@@ -332,21 +364,39 @@ static void vg_init( int argc, char *argv[], const char *window_name )
 			vg_time_delta = vg_min( vg_time - vg_time_last, 0.1f );
 			
 			vg_update_inputs();
-			
 			vg_update();
+			vg_render();
 			
-			// Update mashed projections etc
+			vg_lines_drawall();
 			
-			vg_render();
 			vg_ui();
 			
 			glfwSwapBuffers( vg_window );
+			
+			VG_CHECK_GL();
 		}
 	}
 	
-	vg_free();
 	vg_exit();
 }
 
+// Screen projections
+// ============================================================================================
+
+void vg_projection_update(void)
+{
+	// Do transform local->world
+	vg_mouse_ws[0] = vg_mouse[0];
+	vg_mouse_ws[1] = vg_mouse[1];
+	vg_mouse_ws[2] = 1.0f;
+	
+	vg_mouse_ws[0] =   (2.0f * vg_mouse_ws[0]) / ((float)vg_window_x) - 1.0f;
+	vg_mouse_ws[1] = -((2.0f * vg_mouse_ws[1]) / ((float)vg_window_y) - 1.0f);
+	
+	m3x3f inverse;
+	m3x3_inv( vg_pv, inverse ); 
+	m3x3_mulv( inverse, vg_mouse_ws, vg_mouse_ws );
+}
+
 u32 NvOptimusEnablement = 0x00000001;
 int AmdPowerXpressRequestHighPerformance = 1;