+
/*
- * Copyright 2021-2022 (C) Mount0 Software, Harry Godden - All Rights Reserved
+ * Copyright 2021-2024 (C) Mount0 Software, Harry Godden - All Rights Reserved
* -----------------------------------------------------------------------------
*
* Splash / load screen
* -----------------------------------------------------------------------------
*/
-#ifndef VG_LOADER_H
-#define VG_LOADER_H
-
-#include "common.h"
+#pragma once
-static struct vg_shader _shader_loader =
-{
- .name = "[vg] loader",
- .link = NULL,
- .vs =
- {
- .orig_file = NULL,
- .static_src = ""
- "layout (location=0) in vec2 a_co;"
- "out vec2 aUv;"
- "void main()"
- "{"
- "gl_Position = vec4(a_co*2.0-1.0,0.0,1.0);"
- "aUv = a_co;"
- "}"
- },
- .fs =
- {
- .orig_file = NULL,
- .static_src =
-
- "out vec4 FragColor;"
- "uniform float uTime;"
- "in vec2 aUv;"
-
- "void main()"
- "{"
- "float dither=fract(dot(vec2(171.0,231.0),gl_FragCoord.xy)/71.0)-0.5;"
- "float grad = 1.0-(aUv.y*0.5+0.5);"
- "float fmt1 = step( 0.5, grad+dither );"
-
- "vec3 col = 0.5+0.5*sin( uTime + aUv.xyx + vec3(0.0,2.0,4.0) );"
-
- "FragColor = vec4(col*grad*fmt1,1.0);"
- "}"
- }
-};
-
-static struct vg_loader
+struct vg_loader
{
/* Shutdown steps */
- struct loader_free_step
- {
- void (*fn_free)(void *);
- void *data;
+ struct loader_free_step{
+ void (*fn_free)(void);
}
step_buffer[16];
u32 step_count, step_action;
GLuint vao, vbo;
}
-vg_loader;
-
-VG_STATIC void vg_loader_init(void)
-{
- float quad[] = { 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f,
- 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f };
-
- glGenVertexArrays( 1, &vg_loader.vao );
- glGenBuffers( 1, &vg_loader.vbo );
- glBindVertexArray( vg_loader.vao );
- glBindBuffer( GL_ARRAY_BUFFER, vg_loader.vbo );
- glBufferData( GL_ARRAY_BUFFER, sizeof(quad), quad, GL_STATIC_DRAW );
- glBindVertexArray( vg_loader.vao );
- glVertexAttribPointer( 0, 2, GL_FLOAT, GL_FALSE, sizeof(float)*2, (void*)0 );
- glEnableVertexAttribArray( 0 );
-
- VG_CHECK_GL_ERR();
-
- if( !vg_shader_compile( &_shader_loader ) )
- vg_fatal_exit_loop( "failed to compile shader" );
-}
-
-VG_STATIC void vg_loader_free(void)
-{
- vg_info( "vg_loader_free\n" );
- glDeleteVertexArrays( 1, &vg_loader.vao );
- glDeleteBuffers( 1, &vg_loader.vbo );
-
- for( int i=0; i<vg_loader.step_count; i++ )
- {
- struct loader_free_step *step =
- &vg_loader.step_buffer[vg_loader.step_count -1 -i];
-
- vg_info( " -> %p\n", step->fn_free );
- step->fn_free( step->data );
- }
-
- vg_info( "done\n" );
-}
-
-VG_STATIC float hue_to_rgb( float p, float q, float t )
-{
- if(t < 0.0f) t += 1.0f;
- if(t > 1.0f) t -= 1.0f;
- if(t < 1.0f/6.0f) return p + (q - p) * 6.0f * t;
- if(t < 1.0f/2.0f) return q;
- if(t < 2.0f/3.0f) return p + (q - p) * (2.0f/3.0f - t) * 6.0f;
- return p;
-}
-
-VG_STATIC void vg_render_log(void)
-{
- ui_begin( vg.window_x, vg.window_y );
- SDL_AtomicLock( &log_print_sl );
-
- int const fh = 14;
- int lines_screen_max = ((vg.window_y/fh)-2),
- lines_max_draw = VG_MIN( lines_screen_max, vg_list_size(vg_log.buffer) ),
- lines_to_draw = VG_MIN( lines_max_draw, vg_log.buffer_line_count );
+extern vg_loader;
- int ptr = vg_log.buffer_line_current;
-
- vg_uictx.cursor[0] = 0;
- vg_uictx.cursor[1] = lines_to_draw*fh;
- vg_uictx.cursor[3] = fh;
- ui_fill_x();
-
- for( int i=0; i<lines_to_draw; i ++ )
- {
- ptr --;
-
- if( ptr < 0 )
- ptr = vg_list_size( vg_log.buffer )-1;
-
- ui_text( vg_uictx.cursor, vg_log.buffer[ptr], 1, 0 );
- vg_uictx.cursor[1] -= fh;
- }
-
- SDL_AtomicUnlock( &log_print_sl );
-
- ui_resolve();
- ui_draw( NULL );
-}
-
-VG_STATIC void vg_loader_render(void)
-{
- glViewport( 0,0, vg.window_x, vg.window_y );
- glBindFramebuffer( GL_FRAMEBUFFER, 0 );
- glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
- glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
-
- glUseProgram( _shader_loader.id );
- glUniform1f( glGetUniformLocation( _shader_loader.id, "uTime" ), vg.time );
-
- glBindVertexArray( vg_loader.vao );
- glDrawArrays( GL_TRIANGLES, 0, 6 );
-
- vg_render_log();
-}
-
-
-VG_STATIC void vg_load_full(void);
-
-VG_STATIC int vg_loader_thread(void * nothing)
-{
- SDL_AtomicLock( &vg.sl_context );
- vg.thread_id_loader = SDL_GetThreadID(NULL);
- SDL_AtomicUnlock( &vg.sl_context );
-
- /* Run client loader */
- vg_load_full();
-
- SDL_SemPost( vg.sem_loader );
- vg.thread_id_loader = 0;
-
- return 0;
-}
-
-VG_STATIC void vg_loader_start(void)
-{
- SDL_SemWait( vg.sem_loader );
- SDL_CreateThread( vg_loader_thread, "Loader thread", NULL );
-}
-
-/* this is maybe probably unused now */
-VG_STATIC void vg_free_libc_malloced( void *data )
-{
- free( data );
-}
-
-VG_STATIC void vg_loader_push_free_step( struct loader_free_step step )
-{
- if( vg_loader.step_count == vg_list_size(vg_loader.step_buffer) )
- vg_fatal_exit_loop( "Too many free steps" );
-
- vg_loader.step_buffer[ vg_loader.step_count ++ ] = step;
-}
-
-/*
- * Schedule something to be ran now, freed later. Checks in with engine status
- */
-VG_STATIC void vg_loader_highwater( void( *fn_load )(void),
- void( *fn_free )(void *), void *data )
-{
- if( fn_load )
- fn_load();
-
- if( fn_free )
- {
- struct loader_free_step step;
- step.data = data;
- step.fn_free = fn_free;
-
- vg_loader_push_free_step( step );
- }
- else
- {
- if( data )
- {
- struct loader_free_step step;
- step.data = data;
- step.fn_free = vg_free_libc_malloced;
-
- vg_loader_push_free_step( step );
- }
- }
-
- vg_ensure_engine_running();
-}
+void vg_loader_start( void(*pfn)(void *data), void *data );
+void _vg_loader_step( void( *fn_load )(void), void( *fn_free )(void),
+ const char *alias );
+int vg_loader_availible(void);
+void vg_loader_render(void);
+void vg_loader_render_ring( f32 opacity );
+static void vg_loader_free(void);
+void vg_loader_init(void);
-#endif /* VG_LOADER_H */
+#define vg_loader_step( FN, FN_FREE )\
+ _vg_loader_step( FN, FN_FREE, #FN )
projects / vg.git / blobdiff