284 lines
7.3 KiB
V
284 lines
7.3 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
|
|
// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
|
|
|
|
module gg
|
|
|
|
import os
|
|
import gx
|
|
import sokol
|
|
import sokol.sapp
|
|
import sokol.sgl
|
|
import sokol.gfx
|
|
import math
|
|
|
|
pub struct Event {
|
|
pub mut:
|
|
frame_count u64
|
|
typ sapp.EventType
|
|
key_code KeyCode
|
|
char_code u32
|
|
key_repeat bool
|
|
modifiers u32
|
|
mouse_button MouseButton
|
|
mouse_x f32
|
|
mouse_y f32
|
|
mouse_dx f32
|
|
mouse_dy f32
|
|
scroll_x f32
|
|
scroll_y f32
|
|
num_touches int
|
|
touches [8]C.sapp_touchpoint
|
|
window_width int
|
|
window_height int
|
|
framebuffer_width int
|
|
framebuffer_height int
|
|
}
|
|
|
|
[heap]
|
|
pub struct Context {
|
|
mut:
|
|
render_text bool = true
|
|
// a cache with all images created by the user. used for sokol image init and to save space
|
|
// (so that the user can store image ids, not entire Image objects)
|
|
image_cache []Image
|
|
needs_refresh bool = true
|
|
ticks int // for ui mode only
|
|
pub:
|
|
native_rendering bool
|
|
pub mut:
|
|
scale f32 = 1.0
|
|
// will get set to 2.0 for retina, will remain 1.0 for normal
|
|
width int
|
|
height int
|
|
clear_pass C.sg_pass_action
|
|
window C.sapp_desc
|
|
timage_pip C.sgl_pipeline
|
|
config Config
|
|
ft &FT
|
|
font_inited bool
|
|
ui_mode bool // do not redraw everything 60 times/second, but only when the user requests
|
|
frame u64 // the current frame counted from the start of the application; always increasing
|
|
//
|
|
mbtn_mask byte
|
|
mouse_buttons MouseButtons // typed version of mbtn_mask; easier to use for user programs
|
|
mouse_pos_x int
|
|
mouse_pos_y int
|
|
mouse_dx int
|
|
mouse_dy int
|
|
scroll_x int
|
|
scroll_y int
|
|
//
|
|
key_modifiers Modifier // the current key modifiers
|
|
key_repeat bool // whether the pressed key was an autorepeated one
|
|
pressed_keys [key_code_max]bool // an array representing all currently pressed keys
|
|
pressed_keys_edge [key_code_max]bool // true when the previous state of pressed_keys,
|
|
// *before* the current event was different
|
|
}
|
|
|
|
fn gg_init_sokol_window(user_data voidptr) {
|
|
mut g := unsafe { &Context(user_data) }
|
|
desc := sapp.create_desc()
|
|
/*
|
|
desc := C.sg_desc{
|
|
mtl_device: sapp.metal_get_device()
|
|
mtl_renderpass_descriptor_cb: sapp.metal_get_renderpass_descriptor
|
|
mtl_drawable_cb: sapp.metal_get_drawable
|
|
d3d11_device: sapp.d3d11_get_device()
|
|
d3d11_device_context: sapp.d3d11_get_device_context()
|
|
d3d11_render_target_view_cb: sapp.d3d11_get_render_target_view
|
|
d3d11_depth_stencil_view_cb: sapp.d3d11_get_depth_stencil_view
|
|
}
|
|
*/
|
|
gfx.setup(&desc)
|
|
sgl_desc := C.sgl_desc_t{}
|
|
sgl.setup(&sgl_desc)
|
|
g.scale = dpi_scale()
|
|
// is_high_dpi := sapp.high_dpi()
|
|
// fb_w := sapp.width()
|
|
// fb_h := sapp.height()
|
|
// println('g.scale=$g.scale is_high_dpi=$is_high_dpi fb_w=$fb_w fb_h=$fb_h')
|
|
// if g.config.init_text {
|
|
// `os.is_file()` won't work on Android if the font file is embedded into the APK
|
|
exists := $if !android { os.is_file(g.config.font_path) } $else { true }
|
|
if g.config.font_path != '' && !exists {
|
|
g.render_text = false
|
|
} else if g.config.font_path != '' && exists {
|
|
// t := time.ticks()
|
|
g.ft = new_ft(
|
|
font_path: g.config.font_path
|
|
custom_bold_font_path: g.config.custom_bold_font_path
|
|
scale: dpi_scale()
|
|
) or { panic(err) }
|
|
// println('FT took ${time.ticks()-t} ms')
|
|
g.font_inited = true
|
|
} else {
|
|
if g.config.font_bytes_normal.len > 0 {
|
|
g.ft = new_ft(
|
|
bytes_normal: g.config.font_bytes_normal
|
|
bytes_bold: g.config.font_bytes_bold
|
|
bytes_mono: g.config.font_bytes_mono
|
|
bytes_italic: g.config.font_bytes_italic
|
|
scale: sapp.dpi_scale()
|
|
) or { panic(err) }
|
|
g.font_inited = true
|
|
} else {
|
|
sfont := system_font_path()
|
|
if g.config.font_path != '' {
|
|
eprintln('font file "$g.config.font_path" does not exist, the system font ($sfont) was used instead.')
|
|
}
|
|
|
|
g.ft = new_ft(
|
|
font_path: sfont
|
|
custom_bold_font_path: g.config.custom_bold_font_path
|
|
scale: sapp.dpi_scale()
|
|
) or { panic(err) }
|
|
g.font_inited = true
|
|
}
|
|
}
|
|
//
|
|
mut pipdesc := C.sg_pipeline_desc{
|
|
label: c'alpha_image'
|
|
}
|
|
unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
|
|
|
|
color_state := C.sg_color_state{
|
|
blend: C.sg_blend_state{
|
|
enabled: true
|
|
src_factor_rgb: gfx.BlendFactor(C.SG_BLENDFACTOR_SRC_ALPHA)
|
|
dst_factor_rgb: gfx.BlendFactor(C.SG_BLENDFACTOR_ONE_MINUS_SRC_ALPHA)
|
|
}
|
|
}
|
|
pipdesc.colors[0] = color_state
|
|
|
|
g.timage_pip = sgl.make_pipeline(&pipdesc)
|
|
//
|
|
if g.config.init_fn != voidptr(0) {
|
|
g.config.init_fn(g.config.user_data)
|
|
}
|
|
// Create images now that we can do that after sg is inited
|
|
if g.native_rendering {
|
|
return
|
|
}
|
|
|
|
for i in 0 .. g.image_cache.len {
|
|
if g.image_cache[i].simg.id == 0 {
|
|
g.image_cache[i].init_sokol_image()
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
pub fn new_context(cfg Config) &Context {
|
|
mut g := &Context{
|
|
width: cfg.width
|
|
height: cfg.height
|
|
config: cfg
|
|
ft: 0
|
|
ui_mode: cfg.ui_mode
|
|
native_rendering: cfg.native_rendering
|
|
}
|
|
g.set_bg_color(cfg.bg_color)
|
|
// C.printf('new_context() %p\n', cfg.user_data)
|
|
window := C.sapp_desc{
|
|
user_data: g
|
|
init_userdata_cb: gg_init_sokol_window
|
|
frame_userdata_cb: gg_frame_fn
|
|
event_userdata_cb: gg_event_fn
|
|
fail_userdata_cb: gg_fail_fn
|
|
cleanup_userdata_cb: gg_cleanup_fn
|
|
window_title: &char(cfg.window_title.str)
|
|
html5_canvas_name: &char(cfg.window_title.str)
|
|
width: cfg.width
|
|
height: cfg.height
|
|
sample_count: cfg.sample_count
|
|
high_dpi: true
|
|
fullscreen: cfg.fullscreen
|
|
__v_native_render: cfg.native_rendering
|
|
// drag&drop
|
|
enable_dragndrop: cfg.enable_dragndrop
|
|
max_dropped_files: cfg.max_dropped_files
|
|
max_dropped_file_path_length: cfg.max_dropped_file_path_length
|
|
swap_interval: cfg.swap_interval
|
|
}
|
|
g.window = window
|
|
return g
|
|
}
|
|
|
|
pub fn (ctx &Context) draw_circle_line(x f32, y f32, r int, segments int, c gx.Color) {
|
|
$if macos {
|
|
if ctx.native_rendering {
|
|
C.darwin_draw_circle(x - r + 1, ctx.height - (y + r + 3), r, c)
|
|
return
|
|
}
|
|
}
|
|
if c.a != 255 {
|
|
sgl.load_pipeline(ctx.timage_pip)
|
|
}
|
|
sgl.c4b(c.r, c.g, c.b, c.a)
|
|
nx := x * ctx.scale
|
|
ny := y * ctx.scale
|
|
nr := r * ctx.scale
|
|
mut theta := f32(0)
|
|
mut xx := f32(0)
|
|
mut yy := f32(0)
|
|
sgl.begin_line_strip()
|
|
for i := 0; i < segments + 1; i++ {
|
|
theta = 2.0 * f32(math.pi) * f32(i) / f32(segments)
|
|
xx = nr * math.cosf(theta)
|
|
yy = nr * math.sinf(theta)
|
|
sgl.v2f(xx + nx, yy + ny)
|
|
}
|
|
sgl.end()
|
|
}
|
|
|
|
pub fn high_dpi() bool {
|
|
return C.sapp_high_dpi()
|
|
}
|
|
|
|
pub fn screen_size() Size {
|
|
$if macos {
|
|
return C.gg_get_screen_size()
|
|
}
|
|
// TODO windows, linux, etc
|
|
return Size{}
|
|
}
|
|
|
|
fn C.WaitMessage()
|
|
|
|
/*
|
|
pub fn wait_events() {
|
|
unsafe {
|
|
$if macos {
|
|
#NSEvent *event = [NSApp nextEventMatchingMask:NSEventMaskAny
|
|
#untilDate:[NSDate distantFuture]
|
|
#inMode:NSDefaultRunLoopMode
|
|
#dequeue:YES];
|
|
#[NSApp sendEvent:event];
|
|
}
|
|
$if windows {
|
|
C.WaitMessage()
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
|
|
// TODO: Fix alpha
|
|
pub fn (ctx &Context) draw_rect(x f32, y f32, w f32, h f32, c gx.Color) {
|
|
$if macos {
|
|
if ctx.native_rendering {
|
|
C.darwin_draw_rect(x, ctx.height - (y + h), w, h, c)
|
|
return
|
|
}
|
|
}
|
|
if c.a != 255 {
|
|
sgl.load_pipeline(ctx.timage_pip)
|
|
}
|
|
sgl.c4b(c.r, c.g, c.b, c.a)
|
|
sgl.begin_quads()
|
|
sgl.v2f(x * ctx.scale, y * ctx.scale)
|
|
sgl.v2f((x + w) * ctx.scale, y * ctx.scale)
|
|
sgl.v2f((x + w) * ctx.scale, (y + h) * ctx.scale)
|
|
sgl.v2f(x * ctx.scale, (y + h) * ctx.scale)
|
|
sgl.end()
|
|
}
|