+ for( int i=0; i<vg_list_size(formats); i++ )
+ if( formats[i].e == format )
+ return formats[i].str;
+
+ return "UNDEFINED";
+}
+
+/*
+ * Bind and allocate texture for framebuffer attachment
+ */
+VG_STATIC void render_fb_allocate_texture( struct framebuffer *fb,
+ struct framebuffer_attachment *a )
+{
+ int rx, ry;
+ render_fb_get_current_res( fb, &rx, &ry );
+
+ if( a->purpose == k_framebuffer_attachment_type_renderbuffer ){
+ glBindRenderbuffer( GL_RENDERBUFFER, a->id );
+ glRenderbufferStorage( GL_RENDERBUFFER, a->internalformat, rx, ry );
+ }
+ else if( a->purpose == k_framebuffer_attachment_type_texture ||
+ a->purpose == k_framebuffer_attachment_type_texture_depth )
+ {
+ glBindTexture( GL_TEXTURE_2D, a->id );
+ glTexImage2D( GL_TEXTURE_2D, 0, a->internalformat, rx, ry,
+ 0, a->format, a->type, NULL );
+ }
+}
+
+/*
+ * Full allocation of a framebuffer
+ */
+VG_STATIC void render_fb_allocate( struct framebuffer *fb )
+{
+ glGenFramebuffers( 1, &fb->fb );
+ glBindFramebuffer( GL_FRAMEBUFFER, fb->fb );
+
+ int rx, ry;
+ render_fb_get_current_res( fb, &rx, &ry );
+
+ vg_info( "allocate_framebuffer( %s, %dx%d )\n", fb->display_name, rx, ry );
+ vg_info( "{\n" );
+
+ GLenum colour_attachments[4];
+ u32 colour_count = 0;
+
+ for( int j=0; j<vg_list_size(fb->attachments); j++ ){
+ struct framebuffer_attachment *attachment = &fb->attachments[j];
+
+ if( attachment->purpose == k_framebuffer_attachment_type_none )
+ continue;
+
+ vg_info( " %s: %s\n",
+ render_fb_attachment_str( attachment->attachment ),
+ render_fb_format_str( attachment->internalformat ) );
+
+ if( attachment->purpose == k_framebuffer_attachment_type_renderbuffer ){
+ glGenRenderbuffers( 1, &attachment->id );
+ render_fb_allocate_texture( fb, attachment );
+ glFramebufferRenderbuffer( GL_FRAMEBUFFER,
+ GL_DEPTH_STENCIL_ATTACHMENT,
+ GL_RENDERBUFFER, attachment->id );
+ }
+ else if( attachment->purpose == k_framebuffer_attachment_type_texture ||
+ attachment->purpose == k_framebuffer_attachment_type_texture_depth )
+ {
+ glGenTextures( 1, &attachment->id );
+ render_fb_allocate_texture( fb, attachment );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
+
+ glFramebufferTexture2D( GL_FRAMEBUFFER, attachment->attachment,
+ GL_TEXTURE_2D, attachment->id, 0 );
+
+ if( attachment->purpose == k_framebuffer_attachment_type_texture )
+ colour_attachments[ colour_count ++ ] = attachment->attachment;
+ }
+ }
+
+ glDrawBuffers( colour_count, colour_attachments );
+
+ /*
+ * Check result
+ */
+ GLenum result = glCheckFramebufferStatus( GL_FRAMEBUFFER );
+
+ if( result == GL_FRAMEBUFFER_COMPLETE ){
+ /*
+ * Attatch to gpipeline
+ */
+ if( fb->link )
+ *fb->link = fb;
+
+ vg_success( " status: complete\n" );
+ vg_info( "}\n" );
+ }
+ else{
+ if( result == GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT )
+ vg_error( " status: Incomplete attachment" );
+ else if( result == GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT )
+ vg_error( " status: Missing attachment" );
+ else if( result == GL_FRAMEBUFFER_UNSUPPORTED )
+ vg_error( " status: Unsupported framebuffer format" );
+ else
+ vg_error( " status: Generic Error" );
+
+ vg_info( "}\n" );
+ vg_fatal_error( "Incomplete framebuffer (see logs)" );
+ }
+}
+
+/*
+ * Resize/Update all framebuffers(we know about)
+ */
+VG_STATIC void render_fb_resize(void)
+{
+ if( !gpipeline.ready ) return;
+
+ for( int i=0; i<vg_list_size(framebuffers); i++ ){
+ struct framebuffer *fb = &framebuffers[i];
+ for( int j=0; j<vg_list_size(fb->attachments); j++ ){
+ struct framebuffer_attachment *attachment = &fb->attachments[j];
+ render_fb_allocate_texture( fb, attachment );
+ }
+ }
+}
+
+VG_STATIC int render_framebuffer_control( int argc, char const *argv[] );
+VG_STATIC void render_framebuffer_poll( int argc, char const *argv[] );
+
+VG_STATIC void async_render_init( void *payload, u32 size )
+{
+ /*
+ * Complete Framebuffers
+ */
+ for( int i=0; i<vg_list_size(framebuffers); i++ ){
+ struct framebuffer *fb = &framebuffers[i];
+ render_fb_allocate( fb );
+ }
+
+ f32 rh = 0x1p-4f, ih = 0.3f;
+
+ float quad[] = {
+ 0.00f,0.00f, 1.00f,1.00f, 0.00f,1.00f, /* fsquad */
+ 0.00f,0.00f, 1.00f,0.00f, 1.00f,1.00f,
+
+ 0.00f,0.00f, 1.00f,rh, 0.00f,rh, /* fsquad1 */
+ 0.00f,0.00f, 1.00f,0.00f, 1.00f,rh,
+
+ /* 9x9 debug grid */
+ /* row0 */
+ 0.00f,0.00f, 0.30f,0.30f, 0.00f,0.30f,
+ 0.00f,0.00f, 0.30f,0.00f, 0.30f,0.30f,
+ 0.30f,0.00f, 0.60f,0.30f, 0.30f,0.30f,
+ 0.30f,0.00f, 0.60f,0.00f, 0.60f,0.30f,
+ 0.60f,0.00f, 0.90f,0.30f, 0.60f,0.30f,
+ 0.60f,0.00f, 0.90f,0.00f, 0.90f,0.30f,
+ /* row1 */
+ 0.00f,0.30f, 0.30f,0.60f, 0.00f,0.60f,
+ 0.00f,0.30f, 0.30f,0.30f, 0.30f,0.60f,
+ 0.30f,0.30f, 0.60f,0.60f, 0.30f,0.60f,
+ 0.30f,0.30f, 0.60f,0.30f, 0.60f,0.60f,
+ 0.60f,0.30f, 0.90f,0.60f, 0.60f,0.60f,
+ 0.60f,0.30f, 0.90f,0.30f, 0.90f,0.60f,
+ /* row2 */
+ 0.00f,0.60f, 0.30f,0.90f, 0.00f,0.90f,
+ 0.00f,0.60f, 0.30f,0.60f, 0.30f,0.90f,
+ 0.30f,0.60f, 0.60f,0.90f, 0.30f,0.90f,
+ 0.30f,0.60f, 0.60f,0.60f, 0.60f,0.90f,
+ 0.60f,0.60f, 0.90f,0.90f, 0.60f,0.90f,
+ 0.60f,0.60f, 0.90f,0.60f, 0.90f,0.90f,
+
+ 0.00f,ih, 1.00f,ih+rh, 0.00f,ih+rh, /* fsquad2 */
+ 0.00f,ih, 1.00f,ih, 1.00f,ih+rh,
+ };
+
+ vg_console_reg_cmd( "fb", render_framebuffer_control,
+ render_framebuffer_poll );
+ glGenVertexArrays( 1, &gpipeline.fsquad.vao );
+ glGenBuffers( 1, &gpipeline.fsquad.vbo );
+ glBindVertexArray( gpipeline.fsquad.vao );
+ glBindBuffer( GL_ARRAY_BUFFER, gpipeline.fsquad.vbo );
+ glBufferData( GL_ARRAY_BUFFER, sizeof(quad), quad, GL_STATIC_DRAW );
+ glBindVertexArray( gpipeline.fsquad.vao );
+ glVertexAttribPointer( 0, 2, GL_FLOAT, GL_FALSE,
+ sizeof(float)*2, (void*)0 );
+ glEnableVertexAttribArray( 0 );
+
+ VG_CHECK_GL_ERR();
+
+ glBindFramebuffer( GL_FRAMEBUFFER, 0 );
+ gpipeline.ready = 1;
+}
+
+VG_STATIC void render_init(void)
+{
+ vg_console_reg_var( "blur_strength", &k_blur_strength, k_var_dtype_f32, 0 );
+ vg_console_reg_var( "render_scale", &k_render_scale,
+ k_var_dtype_f32, VG_VAR_PERSISTENT );
+ vg_console_reg_var( "fov", &k_fov, k_var_dtype_f32, VG_VAR_PERSISTENT );
+ vg_console_reg_var( "blur_effect", &k_blur_effect,
+ k_var_dtype_i32, VG_VAR_PERSISTENT );
+
+
+ shader_blit_register();
+ shader_blitblur_register();
+ shader_blitcolour_register();
+
+ vg_async_call( async_render_init, NULL, 0 );
+}
+
+/*
+ * Utility
+ */
+VG_STATIC void render_fsquad(void)
+{
+ glBindVertexArray( gpipeline.fsquad.vao );
+ glDrawArrays( GL_TRIANGLES, 0, 6 );
+}
+
+VG_STATIC void render_fsquad1(void)
+{
+ glBindVertexArray( gpipeline.fsquad.vao );
+ glDrawArrays( GL_TRIANGLES, 6, 6 );
+}
+
+VG_STATIC void render_fsquad2(void)
+{
+ glBindVertexArray( gpipeline.fsquad.vao );
+ glDrawArrays( GL_TRIANGLES, 66,6 );
+}
+
+/*
+ * Call this inside the UI function
+ */
+VG_STATIC void render_view_framebuffer_ui(void)
+{
+#if 0
+ int viewing_count = 0;
+
+ glBindVertexArray( gpipeline.fsquad.vao );
+ shader_blit_use();
+ shader_blit_uTexMain( 0 );
+
+ v2f identity = { 1.0f, 1.0f };
+ shader_blit_uInverseRatio( identity );
+
+ for( int i=0; i<vg_list_size(framebuffers); i++ ){
+ struct framebuffer *fb = &framebuffers[i];
+
+ for( int j=0; j<vg_list_size(fb->attachments); j++ ){
+ struct framebuffer_attachment *at = &fb->attachments[j];
+
+ if( !at->debug_view )
+ continue;
+
+ v2f corner,
+ window = { vg.window_x, vg.window_y };
+
+ corner[0] = viewing_count % 3;
+ corner[1] = 1 + (viewing_count / 3);
+ v2_mul( corner, window, corner );
+ v2_muls( corner, 0.3f, corner );
+ corner[1] = vg.window_y - corner[1];
+
+ ui_text( (ui_rect){ corner[0], corner[1], 0.0f, 0.0f },
+ fb->display_name, 2, k_text_align_left );
+ ui_text( (ui_rect){ corner[0], corner[1] + 32, 0.0f, 0.0f, },
+ at->display_name, 1, k_text_align_left );
+
+ if( at->purpose == k_framebuffer_attachment_type_renderbuffer ){
+ v2f center;
+ v2_muladds( corner, window, 0.15f, center );
+
+ ui_text( (ui_rect){ center[0], center[1], 0.0f, 0.0f },
+ "<hardware texture>", 1, k_text_align_center );
+ }
+ else{
+ render_fb_bind_texture( fb, j, 0 );
+
+ int start = (viewing_count+2) * 6,
+ count = 6;
+ glDrawArrays( GL_TRIANGLES, start, count );
+ }
+
+ viewing_count ++;
+ }
+ }
+#endif
+}
+
+VG_STATIC void render_framebuffer_show( struct framebuffer *fb,
+ struct framebuffer_attachment *at,
+ int operation )
+{
+ at->debug_view = operation;
+ vg_info( "%s %s:%s\n", (operation?"shown": "hidden"),
+ fb->display_name, at->display_name );
+}
+
+/*
+ * arg0: command "show"/"hide"
+ * arg1: framebuffer name <name>/"all"
+ * arg2: subname <name>/none
+ */
+VG_STATIC int render_framebuffer_control( int argc, char const *argv[] )
+{
+ if( argc < 2 ){
+ vg_error( "Usage: fb \"show/hide\" <name>/\"all\" <name>/none\n" );
+ return 0;
+ }
+
+ int modify_all = 0,
+ operation = 0;
+
+ if( !strcmp( argv[0], "show" ) )
+ operation = 1;
+ else if( !strcmp( argv[0], "hide" ) )
+ operation = 0;
+ else{
+ vg_error( "Unknown framebuffer operation: '%s'\n", argv[0] );
+ return 0;
+ }
+
+ if( !strcmp( argv[1], "all" ) )
+ modify_all = 1;
+
+ for( int i=0; i<vg_list_size(framebuffers); i++ ){
+ struct framebuffer *fb = &framebuffers[i];
+
+ for( int j=0; j<vg_list_size(fb->attachments); j++ ){
+ struct framebuffer_attachment *at = &fb->attachments[j];
+
+ if( at->purpose == k_framebuffer_attachment_type_none )
+ continue;
+
+ if( modify_all ){
+ render_framebuffer_show( fb, at, operation );
+ }
+ else{
+ if( !strcmp( fb->display_name, argv[1] ) ){
+ if( argc == 2 )
+ render_framebuffer_show( fb, at, operation );
+ else if( !strcmp( at->display_name, argv[2] ) )
+ render_framebuffer_show( fb, at, operation );
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+VG_STATIC void render_framebuffer_poll( int argc, char const *argv[] )
+{
+ const char *term = argv[argc-1];
+
+ if( argc == 1 ){
+ console_suggest_score_text( "show", term, 0 );
+ console_suggest_score_text( "hide", term, 0 );
+ }
+ else if( argc == 2 ){
+ console_suggest_score_text( "all", term, 0 );
+
+ for( int i=0; i<vg_list_size(framebuffers); i++ ){
+ struct framebuffer *fb = &framebuffers[i];
+ console_suggest_score_text( fb->display_name, term, 0 );
+ }
+ }
+ else if( argc == 3 ){
+ int modify_all = 0;
+
+ if( !strcmp( argv[1], "all" ) )
+ modify_all = 1;
+
+ for( int i=0; i<vg_list_size(framebuffers); i++ ){
+ struct framebuffer *fb = &framebuffers[i];
+
+ for( int j=0; j<vg_list_size(fb->attachments); j++ ){
+ struct framebuffer_attachment *at = &fb->attachments[j];
+
+ if( at->purpose == k_framebuffer_attachment_type_none )
+ continue;