1 /* Copyright (C) 2021-2022 Harry Godden (hgn) - All Rights Reserved */
4 * TODO: Get rid of many context design
11 #include "vg/vg_tex.h"
12 #include "vg/vg_shader.h"
14 static struct vg_shader _shader_ui
=
22 "layout (location=0) in vec2 a_co;"
23 "layout (location=1) in vec2 a_uv;"
24 "layout (location=2) in vec4 a_colour;"
25 "layout (location=3) in vec4 a_clip;"
28 "out vec2 aTexCoords;"
35 "gl_Position = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
36 "aTexCoords = a_uv * 0.0078125;"
47 "uniform sampler2D uTexGlyphs;"
58 "float clip_blend = step( aWsp.x, aClip.z ) *"
59 "step( aWsp.y, aClip.w ) *"
60 "step( aClip.x, aWsp.x ) *"
61 "step( aClip.y, aWsp.y ); "
63 "vec4 glyph = vec4(1.0,1.0,1.0,1.0);"
65 "if( aColour.a == 0.0 )"
67 "glyph = texture( uTexGlyphs, aTexCoords );"
68 "glyph.a = smoothstep( 0.47, 0.53, glyph.r );"
72 "glyph.a = aColour.a;"
75 "FragColor = vec4( aColour.rgb, glyph.a*clip_blend );"
81 typedef u32 ui_colour
;
82 typedef ui_px ui_rect
[4];
83 typedef struct ui_ctx ui_ctx
;
84 typedef struct ui_colourset ui_colourset
;
86 /* Relative to cursor p0 */
89 k_text_align_left
= 0,
90 k_text_align_right
= 1,
91 k_text_align_center
= 2
106 ui_colour background
;
144 u32 capture_mouse_id
;
150 int click_state
; /* 0: released, 1: on down, 2: pressed, 3: on release */
152 ui_colourset
*colours
;
167 #define UI_GLYPH_SPACING_X 9
169 static GLuint ui_glyph_texture
= 0;
170 static ui_colourset ui_default_colours
= {
176 static ui_ctx ui_global_ctx
;
178 static void ui_context_vg_free( ui_ctx
*ctx
)
180 glDeleteVertexArrays( 1, &ctx
->vao
);
181 glDeleteBuffers( 1, &ctx
->vbo
);
182 glDeleteBuffers( 1, &ctx
->ebo
);
184 vg_free( ctx
->verts
);
185 vg_free( ctx
->indices
);
188 static int ui_init_context( ui_ctx
*ctx
, int index_buffer_size
)
190 u32 vertex_buffer_size
= (index_buffer_size
+(index_buffer_size
/2));
192 /* Generate the buffer we are gonna be drawing to */
193 glGenVertexArrays( 1, &ctx
->vao
);
194 glGenBuffers( 1, &ctx
->vbo
);
195 glGenBuffers( 1, &ctx
->ebo
);
197 glBindVertexArray( ctx
->vao
);
198 glBindBuffer( GL_ARRAY_BUFFER
, ctx
->vbo
);
200 glBufferData( GL_ARRAY_BUFFER
,
201 vertex_buffer_size
* sizeof( struct ui_vert
),
202 NULL
, GL_DYNAMIC_DRAW
);
203 glBindVertexArray( ctx
->vao
);
205 glBindBuffer( GL_ELEMENT_ARRAY_BUFFER
, ctx
->ebo
);
206 glBufferData( GL_ELEMENT_ARRAY_BUFFER
,
207 index_buffer_size
* sizeof( u16
), NULL
, GL_DYNAMIC_DRAW
);
212 u32
const stride
= sizeof( struct ui_vert
);
215 glVertexAttribPointer( 0, 2, GL_SHORT
, GL_FALSE
,
216 stride
, (void *)offsetof( struct ui_vert
, co
) );
217 glEnableVertexAttribArray( 0 );
220 glVertexAttribPointer( 1, 2, GL_UNSIGNED_BYTE
, GL_FALSE
,
221 stride
, (void *)offsetof( struct ui_vert
, uv
) );
222 glEnableVertexAttribArray( 1 );
225 glVertexAttribPointer( 2, 4, GL_UNSIGNED_BYTE
, GL_TRUE
, stride
,
226 (void *)offsetof( struct ui_vert
, colour
) );
227 glEnableVertexAttribArray( 2 );
230 glVertexAttribPointer( 3, 4, GL_SHORT
, GL_FALSE
, stride
,
231 (void *)offsetof( struct ui_vert
, clip
) );
232 glEnableVertexAttribArray( 3 );
236 /* Alloc RAM default context */
237 ctx
->verts
= (struct ui_vert
*)vg_alloc(
238 vertex_buffer_size
* sizeof(struct ui_vert
) );
240 goto il_fail_alloc_verts
;
242 ctx
->indices
= (u16
*)vg_alloc( index_buffer_size
* sizeof(u16
) );
244 goto il_fail_alloc_indices
;
247 ctx
->colours
= &ui_default_colours
;
251 vg_free( ctx
->indices
);
253 il_fail_alloc_indices
:
254 vg_free( ctx
->verts
);
257 glDeleteBuffers( 1, &ctx
->ebo
);
258 glDeleteBuffers( 1, &ctx
->vbo
);
259 glDeleteVertexArrays( 1, &ctx
->vao
);
264 static int ui_default_init(void)
266 /* Load default font */
268 #include "vg/vg_pxfont.h"
271 u32 pixels
= 0, total
= 256*256, data
= 0;
272 u8
*image
= vg_alloc( total
);
274 while( pixels
< total
)
276 for( int b
= 31; b
>= 0; b
-- )
278 image
[ pixels
++ ] = (compressed
[data
] & (0x1 << b
))? 0xff: 0x00;
280 if( pixels
>= total
)
289 glGenTextures( 1, &ui_glyph_texture
);
290 glBindTexture( GL_TEXTURE_2D
, ui_glyph_texture
);
291 glTexImage2D( GL_TEXTURE_2D
, 0, GL_R8
, 256, 256, 0,
292 GL_RED
, GL_UNSIGNED_BYTE
, image
);
301 if( !ui_init_context( &ui_global_ctx
, 20000 ) ) goto il_generic_fail
;
302 if( !vg_shader_compile( &_shader_ui
) ) goto il_shader_fail
;
308 glDeleteTextures( 1, &ui_glyph_texture
);
313 static void ui_default_free(void)
315 vg_free_shader( &_shader_ui
);
316 glDeleteTextures( 1, &ui_glyph_texture
);
317 ui_context_vg_free( &ui_global_ctx
);
320 static struct ui_vert
*ui_fill_rect_uv( ui_ctx
*ctx
, ui_rect rect
,
321 u32 colour
, ui_px uv
[4] );
323 static void ui_draw( ui_ctx
*ctx
, m3x3f view_override
)
325 u32 num_indices_normal
= ctx
->num_indices
;
327 /* Append images to back of buffer */
328 for( int i
= 0; i
< ctx
->image_count
; i
++ )
330 ui_fill_rect_uv( ctx
, ctx
->images
[i
].rc
,
331 0xffffffff, (ui_px
[4]){0,0,128,128} );
334 glBindVertexArray( ctx
->vao
);
336 glBindBuffer( GL_ARRAY_BUFFER
, ctx
->vbo
);
337 glBufferSubData( GL_ARRAY_BUFFER
, 0,
338 ctx
->num_verts
* sizeof( struct ui_vert
), ctx
->verts
);
340 glBindBuffer( GL_ELEMENT_ARRAY_BUFFER
, ctx
->ebo
);
341 glBufferSubData( GL_ELEMENT_ARRAY_BUFFER
, 0,
342 ctx
->num_indices
* sizeof( u16
), ctx
->indices
);
345 glBlendFunc(GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
346 glBlendEquation(GL_FUNC_ADD
);
348 glUseProgram( _shader_ui
.id
);
350 m3x3f view
= M3X3_IDENTITY
;
354 view_override
= view
;
356 m3x3_translate( view
, (v3f
){ -1.0f
, 1.0f
, 0.0f
} );
357 m3x3_scale( view
, (v3f
){ 1.0f
/((float)vg
.window_x
*0.5f
),
358 -1.0f
/((float)vg
.window_y
*0.5f
), 1.0f
} );
362 glUniformMatrix3fv( glGetUniformLocation( _shader_ui
.id
, "uPv" ), 1,
363 GL_FALSE
, (float *)view_override
);
365 glActiveTexture( GL_TEXTURE0
);
366 glBindTexture( GL_TEXTURE_2D
, ui_glyph_texture
);
367 glUniform1i( glGetUniformLocation( _shader_ui
.id
, "uTexGlyphs" ), 0 );
369 glDrawElements( GL_TRIANGLES
, num_indices_normal
,
370 GL_UNSIGNED_SHORT
, (void*)(0) );
372 /* Draw image elements */
373 for( int i
= 0; i
< ctx
->image_count
; i
++ )
375 struct ui_image
*img
= &ctx
->images
[i
];
377 glBindTexture( GL_TEXTURE_2D
, img
->image
);
378 glDrawElements( GL_TRIANGLES
, 6, GL_UNSIGNED_SHORT
,
379 (void*)( (num_indices_normal
+ 6*i
)*sizeof(u16
) ) );
388 static void ui_rect_copy( ui_rect src
, ui_rect dst
)
396 static void ui_rect_pad( ui_rect rect
, ui_px pad
)
407 static struct ui_qnode
*ui_current( ui_ctx
*ctx
)
409 return &ctx
->stack
[ ctx
->stack_count
-1 ];
412 static void ui_new_node( ui_ctx
*ctx
)
414 if( ctx
->stack_count
== vg_list_size( ctx
->stack
) )
416 vg_error( "[UI] Stack overflow while creating box!" );
420 struct ui_qnode
*parent
= &ctx
->stack
[ ctx
->stack_count
-1 ];
421 struct ui_qnode
*node
= &ctx
->stack
[ ctx
->stack_count
++ ];
422 ui_rect_copy( ctx
->cursor
, node
->rect
);
424 if( parent
->mouse_over
)
426 if( ctx
->mouse
[0] >= node
->rect
[0] &&
427 ctx
->mouse
[0] < node
->rect
[0]+node
->rect
[2] &&
428 ctx
->mouse
[1] >= node
->rect
[1] &&
429 ctx
->mouse
[1] < node
->rect
[1]+node
->rect
[3] )
430 node
->mouse_over
= 1;
432 node
->mouse_over
= 0;
436 node
->mouse_over
= 0;
440 static int ui_hasmouse( ui_ctx
*ctx
)
442 struct ui_qnode
*node
= ui_current( ctx
);
443 return (node
->mouse_over
&& (node
->capture_id
== ctx
->capture_mouse_id
));
446 static void ui_end( ui_ctx
*ctx
)
448 struct ui_qnode
*node
= &ctx
->stack
[ --ctx
->stack_count
];
449 ui_rect_copy( node
->rect
, ctx
->cursor
);
452 static void ui_end_down( ui_ctx
*ctx
)
454 ui_px height
= ui_current( ctx
)->rect
[3];
456 ctx
->cursor
[1] += height
;
459 static void ui_end_right( ui_ctx
*ctx
)
461 ui_px width
= ui_current( ctx
)->rect
[2];
463 ctx
->cursor
[0] += width
;
466 static void ui_fill_y( ui_ctx
*ctx
)
468 struct ui_qnode
*node
= ui_current( ctx
);
469 ctx
->cursor
[3] = node
->rect
[3] - (ctx
->cursor
[1]-node
->rect
[1]);
472 static void ui_fill_x( ui_ctx
*ctx
)
474 struct ui_qnode
*node
= ui_current( ctx
);
475 ctx
->cursor
[2] = node
->rect
[2] - (ctx
->cursor
[0]-node
->rect
[0]);
478 static void ui_align_bottom( ui_ctx
*ctx
)
480 struct ui_qnode
*node
= ui_current( ctx
);
481 ctx
->cursor
[1] = node
->rect
[1] + node
->rect
[3] - ctx
->cursor
[3];
484 static void ui_align_right( ui_ctx
*ctx
)
486 struct ui_qnode
*node
= ui_current( ctx
);
487 ctx
->cursor
[0] = node
->rect
[0] + node
->rect
[2] - ctx
->cursor
[2];
490 static void ui_align_top( ui_ctx
*ctx
)
492 ctx
->cursor
[1] = ui_current( ctx
)->rect
[1];
495 static void ui_align_left( ui_ctx
*ctx
)
497 ctx
->cursor
[0] = ui_current( ctx
)->rect
[0];
500 static void ui_clamp_rect( ui_rect parent
, ui_rect dest
)
502 dest
[0] = vg_min( parent
[0] + parent
[2] - dest
[2], dest
[0] );
503 dest
[1] = vg_min( parent
[1] + parent
[3] - dest
[3], dest
[1] );
504 dest
[0] = vg_max( parent
[0], dest
[0] );
505 dest
[1] = vg_max( parent
[1], dest
[1] );
508 static void ui_capture_mouse( ui_ctx
*ctx
, u32 id
)
510 struct ui_qnode
*node
= &ctx
->stack
[ ctx
->stack_count
-1 ];
511 node
->capture_id
= id
;
513 if( !ctx
->capture_lock
&& node
->mouse_over
)
515 ctx
->capture_mouse_id
= id
;
519 static int ui_want_mouse( ui_ctx
*ctx
)
521 return ctx
->capture_mouse_id
== 0? 0: 1;
524 static void ui_set_clip( ui_ctx
*ctx
, ui_rect clip
)
526 ctx
->clipping
[0] = clip
[0];
527 ctx
->clipping
[1] = clip
[1];
528 ctx
->clipping
[2] = clip
[0] + clip
[2];
529 ctx
->clipping
[3] = clip
[1] + clip
[3];
532 static void ui_release_clip( ui_ctx
*ctx
)
534 ctx
->clipping
[0] = -32000;
535 ctx
->clipping
[1] = -32000;
536 ctx
->clipping
[2] = 32000;
537 ctx
->clipping
[3] = 32000;
540 static struct ui_vert
*ui_fill_rect_uv( ui_ctx
*ctx
, ui_rect rect
,
541 u32 colour
, ui_px uv
[4] )
543 struct ui_vert
*vertices
= &ctx
->verts
[ ctx
->num_verts
];
544 vertices
[0].co
[0] = rect
[0];
545 vertices
[0].co
[1] = rect
[1];
546 vertices
[0].uv
[0] = uv
[0];
547 vertices
[0].uv
[1] = uv
[1];
548 vertices
[0].colour
= colour
;
549 vertices
[1].co
[0] = rect
[0]+rect
[2];
550 vertices
[1].co
[1] = rect
[1];
551 vertices
[1].uv
[0] = uv
[2];
552 vertices
[1].uv
[1] = uv
[1];
553 vertices
[1].colour
= colour
;
554 vertices
[2].co
[0] = rect
[0]+rect
[2];
555 vertices
[2].co
[1] = rect
[1]+rect
[3];
556 vertices
[2].uv
[0] = uv
[2];
557 vertices
[2].uv
[1] = uv
[3];
558 vertices
[2].colour
= colour
;
559 vertices
[3].co
[0] = rect
[0];
560 vertices
[3].co
[1] = rect
[1]+rect
[3];
561 vertices
[3].uv
[0] = uv
[0];
562 vertices
[3].uv
[1] = uv
[3];
563 vertices
[3].colour
= colour
;
564 u16 ind_start
= ctx
->num_verts
;
565 u16
*indices
= &ctx
->indices
[ ctx
->num_indices
];
567 ui_rect_copy( ctx
->clipping
, vertices
[0].clip
);
568 ui_rect_copy( ctx
->clipping
, vertices
[1].clip
);
569 ui_rect_copy( ctx
->clipping
, vertices
[2].clip
);
570 ui_rect_copy( ctx
->clipping
, vertices
[3].clip
);
572 indices
[0] = ind_start
+0;
573 indices
[1] = ind_start
+2;
574 indices
[2] = ind_start
+1;
576 indices
[3] = ind_start
+0;
577 indices
[4] = ind_start
+3;
578 indices
[5] = ind_start
+2;
580 ctx
->num_indices
+= 6;
586 static struct ui_vert
*ui_fill_rect( ui_ctx
*ctx
, ui_rect rect
, u32 colour
)
588 return ui_fill_rect_uv( ctx
, rect
, colour
, (ui_px
[4]){ 4,4, 4,4 } );
591 static ui_px
ui_text_line_offset( const char *str
, ui_px scale
,
592 enum ui_text_align align
)
594 if( align
== k_text_align_left
)
598 const char *_c
= str
;
601 while( (c
= *(_c
++)) )
602 if( c
>= 32 && c
<= 126 )
607 if( align
== k_text_align_right
)
608 return -length
* scale
*8;
610 return (-length
* scale
*8) / 2;
613 static void ui_text( ui_ctx
*ctx
, ui_px pos
[2],
614 const char *str
, ui_px scale
, enum ui_text_align align
)
617 u32 current_colour
= 0x00ffffff;
619 const char *_c
= str
;
622 text_cursor
[0] = pos
[0] + ui_text_line_offset( str
, scale
, align
);
623 text_cursor
[1] = pos
[1];
624 text_cursor
[2] = 8*scale
;
625 text_cursor
[3] = 14*scale
;
627 while( (c
= *(_c
++)) )
631 text_cursor
[1] += 14*scale
;
632 text_cursor
[0] = pos
[0] + ui_text_line_offset( _c
, scale
, align
);
639 glyph_base
[0] = glyph_index
& 0xf;
640 glyph_base
[1] = (glyph_index
-glyph_base
[0])>>4;
645 ui_fill_rect_uv( ctx
, text_cursor
, current_colour
, (ui_px
[4])
653 else if( c
== '\x1B' )
657 for( int i
= 0; i
< 3; i
++ )
667 case '0': current_colour
= 0x00ffffff; break;
668 case '3'|'1'<<8: current_colour
= 0x00201fee; break;
669 case '3'|'2'<<8: current_colour
= 0x0037e420; break;
670 case '3'|'3'<<8: current_colour
= 0x000ed8e2; break;
671 case '3'|'4'<<8: current_colour
= 0x00f15010; break;
672 case '3'|'5'<<8: current_colour
= 0x00ee20ee; break;
673 case '3'|'6'<<8: current_colour
= 0x00eeee20; break;
674 case '3'|'7'<<8: current_colour
= 0x00ffffff; break;
680 colour_id
|= _c
[i
] << (i
*8);
693 text_cursor
[0] += UI_GLYPH_SPACING_X
*scale
*4;
697 text_cursor
[0] += UI_GLYPH_SPACING_X
*scale
;
704 static void ui_begin( ui_ctx
*ctx
, ui_px res_x
, ui_px res_y
)
708 ctx
->cursor
[2] = res_x
;
709 ctx
->cursor
[3] = res_y
;
711 ui_rect_copy( ctx
->cursor
, ctx
->stack
[0].rect
);
712 ctx
->stack
[0].mouse_over
= 1;
714 ctx
->stack_count
= 1;
717 ctx
->num_indices
= 0;
719 ui_release_clip( ctx
);
721 if( ctx
->click_state
== 0 )
722 ctx
->capture_mouse_id
= 0;
724 ctx
->image_count
= 0;
727 static void ui_resolve( ui_ctx
*ctx
)
729 if( ctx
->stack_count
-1 )
731 vg_error( "[UI] Mismatched node create/drestroy!" );
735 if( ctx
->click_state
== 3 || ctx
->click_state
== 0 )
737 ctx
->capture_lock
= 0;
741 static void ui_set_mouse( ui_ctx
*ctx
, int x
, int y
, int click_state
)
746 ctx
->click_state
= click_state
;
750 * High level controls
758 ui_px drag_offset
[2];
763 k_button_released
= 0,
764 k_button_start_click
,
769 static int ui_button( ui_ctx
*ctx
)
771 u32 uid
= ctx
->control_id
++;
775 ui_capture_mouse( ctx
, uid
);
777 if( ui_hasmouse(ctx
) )
779 ui_fill_rect( ctx
, ctx
->cursor
, ctx
->colours
->hover
);
781 if( ctx
->click_state
== 1 )
783 ctx
->capture_lock
= 1;
784 return k_button_start_click
;
786 else if( ctx
->capture_lock
&& ctx
->click_state
== 3 )
787 return k_button_click
;
788 else if( ctx
->capture_lock
&& ctx
->click_state
== 2 )
789 return k_button_hold
;
791 return k_button_click
;
794 ui_fill_rect( ctx
, ctx
->cursor
, ctx
->colours
->main
);
797 return k_button_released
;
800 static int ui_window( ui_ctx
*ctx
, struct ui_window
*window
, u32 control_group
)
804 window
->transform
[0] = ctx
->mouse
[0]+window
->drag_offset
[0];
805 window
->transform
[1] = ctx
->mouse
[1]+window
->drag_offset
[1];
807 ui_clamp_rect( ctx
->stack
[0].rect
, window
->transform
);
809 if( ctx
->click_state
== 0 || ctx
->click_state
== 3 )
815 ui_rect_copy( window
->transform
, ctx
->cursor
);
819 ui_capture_mouse( ctx
, ctx
->control_id
++ );
825 ui_capture_mouse( ctx
, ctx
->control_id
++ );
827 struct ui_vert
*drag_bar
= ui_fill_rect( ctx
, ctx
->cursor
, 0xff555555 );
832 ui_text( ctx
, ctx
->cursor
, window
->title
, 2, 0 );
837 ui_align_right( ctx
);
839 ui_rect_pad( ctx
->cursor
, 4 );
841 if( ui_button( ctx
) )
843 vg_info( "Click clacked\n" );
846 ui_text( ctx
, ctx
->cursor
, "x", 2, 0 );
849 if( ui_hasmouse( ctx
) )
851 drag_bar
[0].colour
= 0xff777777;
852 drag_bar
[1].colour
= 0xff777777;
853 drag_bar
[2].colour
= 0xff777777;
854 drag_bar
[3].colour
= 0xff777777;
857 if( ctx
->click_state
== 1 )
860 window
->drag_offset
[0] = window
->transform
[0]-ctx
->mouse
[0];
861 window
->drag_offset
[1] = window
->transform
[1]-ctx
->mouse
[1];
871 static void ui_push_image( ui_ctx
*ctx
, ui_rect rc
, GLuint image
)
873 struct ui_image
*img
= &ctx
->images
[ ctx
->image_count
++ ];
874 ui_rect_copy( rc
, img
->rc
);
884 struct ui_slider_vector
886 float *data
, min
, max
;
887 struct ui_slider sub
[4];
896 static void ui_slider( ui_ctx
*ctx
, struct ui_slider
*slider
)
900 ui_px slider_start
= ctx
->cursor
[0];
902 float const ftotal
= ctx
->cursor
[2],
903 fwidth
= ftotal
*0.25f
,
904 fmove
= ftotal
- fwidth
,
905 fstart
= fwidth
*0.5f
,
906 frange
= slider
->max
-slider
->min
,
907 fpos
= (*slider
->data
- slider
->min
) / frange
;
909 ui_fill_rect( ctx
, ctx
->cursor
, 0xff111111 );
910 ctx
->cursor
[2] = fwidth
;
911 ctx
->cursor
[0] = slider_start
+ fpos
* fmove
;
913 u32 uid
= ctx
->control_id
++;
914 int status
= ui_button( ctx
);
915 if( ctx
->capture_lock
&& (ctx
->capture_mouse_id
== uid
))
917 float ui_new
= ctx
->mouse
[0],
918 local
= ui_new
- (slider_start
+ fstart
),
919 zo
= vg_clampf(local
/ fmove
,0.0f
,1.0f
);
921 *slider
->data
= vg_lerpf( slider
->min
, slider
->max
, zo
);
928 snprintf( buf
, 12, "%.2f", *slider
->data
);
929 ui_text( ctx
, ctx
->cursor
, buf
, 1, 0 );
934 static void ui_slider_vector( ui_ctx
*ctx
, struct ui_slider_vector
*slider
)
936 for( int i
=0; i
<slider
->len
; i
++ )
938 slider
->sub
[i
].data
= &slider
->data
[i
];
939 slider
->sub
[i
].min
= slider
->min
;
940 slider
->sub
[i
].max
= slider
->max
;
941 ui_slider( ctx
, &slider
->sub
[i
] );
945 static void ui_checkbox( ui_ctx
*ctx
, struct ui_checkbox
*cb
)
947 if( ui_button(ctx
) == k_button_click
)
951 ui_rect_pad( ctx
->cursor
, 4 );
953 ui_fill_rect( ctx
, ctx
->cursor
, 0xff00e052 );
955 ui_fill_rect( ctx
, ctx
->cursor
, 0xff0052e0 );
962 #define gui_draw(...) ui_draw( &ui_global_ctx, __VA_ARGS__)
963 #define gui_current(...) ui_current( &ui_global_ctx, __VA_ARGS__)
964 #define gui_new_node() ui_new_node( &ui_global_ctx )
965 #define gui_hasmouse(...) ui_hasmouse( &ui_global_ctx, __VA_ARGS__)
966 #define gui_end() ui_end( &ui_global_ctx )
967 #define gui_end_down() ui_end_down( &ui_global_ctx )
968 #define gui_end_right() ui_end_right( &ui_global_ctx )
969 #define gui_fill_y() ui_fill_y( &ui_global_ctx)
970 #define gui_fill_x() ui_fill_x( &ui_global_ctx)
971 #define gui_align_bottom() ui_align_bottom( &ui_global_ctx )
972 #define gui_align_right() ui_align_right( &ui_global_ctx )
973 #define gui_align_top() ui_align_top( &ui_global_ctx )
974 #define gui_align_left() ui_align_left( &ui_global_ctx )
975 #define gui_clamp_rect(...) ui_clamp_rect( &ui_global_ctx, __VA_ARGS__)
976 #define gui_capture_mouse(...) ui_capture_mouse( &ui_global_ctx, __VA_ARGS__)
977 #define gui_set_clip(...) ui_set_clip( &ui_global_ctx, __VA_ARGS__)
978 #define gui_release_clip() ui_release_clip( &ui_global_ctx )
979 #define gui_fill_rect_uv(...) ui_fill_rect_uv( &ui_global_ctx, __VA_ARGS__)
980 #define gui_fill_rect(...) ui_fill_rect( &ui_global_ctx, __VA_ARGS__)
981 #define gui_text(...) ui_text( &ui_global_ctx, __VA_ARGS__)
982 #define gui_begin(...) ui_begin( &ui_global_ctx, __VA_ARGS__)
983 #define gui_resolve(...) ui_resolve( &ui_global_ctx, __VA_ARGS__)
984 #define gui_set_mouse(...) ui_set_mouse( &ui_global_ctx, __VA_ARGS__)
985 #define gui_button(...) ui_button( &ui_global_ctx, __VA_ARGS__)
986 #define gui_window(...) ui_window( &ui_global_ctx, __VA_ARGS__)
987 #define gui_want_mouse() ui_want_mouse( &ui_global_ctx )
988 #define gui_push_image(...) ui_push_image( &ui_global_ctx, __VA_ARGS__ )
989 #define gui_reset_colours(...) ui_reset_colours( &ui_global_ctx )