1
0
mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
v/vlib/gg/gg.v

390 lines
9.2 KiB
V
Raw Normal View History

2020-01-23 23:04:46 +03:00
// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
2020-07-06 21:29:05 +03:00
// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
2019-06-22 21:20:28 +03:00
module gg
import gx
import os
import sokol
import sokol.sapp
import sokol.sgl
import sokol.gfx
2020-08-02 00:40:25 +03:00
import stbi
2019-06-22 21:20:28 +03:00
2020-08-02 00:40:25 +03:00
// import time
pub type FNCb = fn (x voidptr)
pub type FNEvent = fn (e, x voidptr)
pub type FNFail = fn (msg string, x voidptr)
pub type FNKeyDown = fn (c sapp.KeyCode, m sapp.Modifier, x voidptr)
pub type FNChar = fn (c u32, x voidptr)
2019-06-22 21:20:28 +03:00
pub struct Config {
2019-08-23 00:00:31 +03:00
pub:
2020-08-02 00:40:25 +03:00
width int
height int
use_ortho bool
retina bool
resizable bool
user_data voidptr
font_size int
create_window bool
// window_user_ptr voidptr
2020-08-02 00:40:25 +03:00
window_title string
2020-06-04 20:57:13 +03:00
borderless_window bool
2020-08-02 00:40:25 +03:00
always_on_top bool
bg_color gx.Color
init_fn FNCb = voidptr(0)
frame_fn FNCb = voidptr(0)
cleanup_fn FNCb = voidptr(0)
fail_fn FNFail = voidptr(0)
event_fn FNEvent = voidptr(0)
keydown_fn FNKeyDown = voidptr(0) // special case of event_fn
char_fn FNChar = voidptr(0) // special case of event_fn
wait_events bool // set this to true for UIs, to save power
fullscreen bool
scale f32 = 1.0 // vid needs this
// init_text bool
font_path string
2019-06-22 21:20:28 +03:00
}
2020-06-04 21:26:18 +03:00
pub struct Context {
2020-07-06 20:45:00 +03:00
render_text bool
2019-08-23 00:00:31 +03:00
pub mut:
2020-08-02 00:40:25 +03:00
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
2020-08-02 00:40:25 +03:00
config Config
ft &FT
2020-07-06 20:45:00 +03:00
font_inited bool
}
2020-08-02 00:40:25 +03:00
pub struct Size {
pub:
width int
height int
}
2020-06-04 20:57:13 +03:00
fn gg_init_sokol_window(user_data voidptr) {
2020-06-04 21:26:18 +03:00
mut g := &Context(user_data)
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
2019-06-22 21:20:28 +03:00
}
gfx.setup(&desc)
sgl_desc := C.sgl_desc_t{}
sgl.setup(&sgl_desc)
2020-06-04 21:09:46 +03:00
g.scale = sapp.dpi_scale()
// NB: on older X11, `Xft.dpi` from ~/.Xresources, that sokol uses,
// may not be set which leads to sapp.dpi_scale reporting incorrectly 0.0
if g.scale < 0.1 {
g.scale = 1.0
}
2020-08-02 00:40:25 +03:00
// 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 {
2020-07-06 20:45:00 +03:00
if g.config.font_path != '' {
2020-08-02 00:40:25 +03:00
// t := time.ticks()
g.ft = new_ft({
font_path: g.config.font_path
scale: sapp.dpi_scale()
}) or {
panic(err)
}
// println('FT took ${time.ticks()-t} ms')
2020-07-06 20:45:00 +03:00
g.font_inited = true
}
//
mut pipdesc := C.sg_pipeline_desc{}
unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
pipdesc.blend.enabled = true
pipdesc.blend.src_factor_rgb = C.SG_BLENDFACTOR_SRC_ALPHA
pipdesc.blend.dst_factor_rgb = C.SG_BLENDFACTOR_ONE_MINUS_SRC_ALPHA
g.timage_pip = sgl.make_pipeline(&pipdesc)
//
if g.config.init_fn != voidptr(0) {
2020-07-06 20:45:00 +03:00
g.config.init_fn(g.config.user_data)
2019-06-22 21:20:28 +03:00
}
}
fn gg_frame_fn(user_data voidptr) {
2020-06-04 21:26:18 +03:00
mut g := &Context(user_data)
if g.config.frame_fn != voidptr(0) {
2020-07-06 20:45:00 +03:00
g.config.frame_fn(g.config.user_data)
2019-08-23 00:00:31 +03:00
}
}
// TODO: remove this hacky workaround...
// NB: todo_remove_this is needed to workaround a v bug,
// where it thinks that &sapp.Event(x) is a function call,
// instead of a cast, if v has not yet seen &sapp.Event used
// as a parameter type.
2020-08-02 00:40:25 +03:00
fn todo_remove_this(e &sapp.Event) {
}
2020-08-02 00:40:25 +03:00
fn gg_event_fn(ce &C.sapp_event, user_data voidptr) {
e := &sapp.Event(ce)
2020-06-04 21:26:18 +03:00
mut g := &Context(user_data)
if g.config.event_fn != voidptr(0) {
g.config.event_fn(e, g.config.user_data)
2019-08-23 00:00:31 +03:00
}
match e.typ {
.key_down {
if g.config.keydown_fn != voidptr(0) {
kdfn := g.config.keydown_fn
kdfn(e.key_code, e.modifiers, g.config.user_data)
}
}
.char {
if g.config.char_fn != voidptr(0) {
cfn := g.config.char_fn
cfn(e.char_code, g.config.user_data)
}
}
2020-08-02 00:40:25 +03:00
else {}
}
2019-06-22 21:20:28 +03:00
}
2020-08-02 00:40:25 +03:00
fn gg_cleanup_fn(user_data voidptr) {
2020-06-04 21:26:18 +03:00
mut g := &Context(user_data)
if g.config.cleanup_fn != voidptr(0) {
g.config.cleanup_fn(g.config.user_data)
2019-06-22 21:20:28 +03:00
}
}
2020-08-02 00:40:25 +03:00
fn gg_fail_fn(msg charptr, user_data voidptr) {
2020-06-04 21:26:18 +03:00
mut g := &Context(user_data)
vmsg := tos3(msg)
if g.config.fail_fn != voidptr(0) {
g.config.fail_fn(vmsg, g.config.user_data)
2020-08-02 00:40:25 +03:00
} else {
eprintln('gg error: $vmsg')
}
2019-06-22 21:20:28 +03:00
}
//
2020-08-02 00:40:25 +03:00
pub fn new_context(cfg Config) &Context {
2020-06-04 21:26:18 +03:00
mut g := &Context{
width: cfg.width
height: cfg.height
2020-08-02 00:40:25 +03:00
clear_pass: gfx.create_clear_pass(f32(cfg.bg_color.r) / 255.0, f32(cfg.bg_color.g) / 255.0,
f32(cfg.bg_color.b) / 255.0, 1.0)
config: cfg
2020-07-06 20:45:00 +03:00
render_text: cfg.font_path != ''
ft: 0
}
2020-08-02 00:40:25 +03:00
// 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: cfg.window_title.str
html5_canvas_name: cfg.window_title.str
width: cfg.width
height: cfg.height
2020-06-04 21:09:46 +03:00
high_dpi: true
2020-06-05 00:51:54 +03:00
fullscreen: cfg.fullscreen
}
2020-08-02 00:40:25 +03:00
if cfg.use_ortho {
} else {
}
g.window = window
return g
2019-06-22 21:20:28 +03:00
}
2020-06-04 21:26:18 +03:00
pub fn (gg &Context) run() {
sapp.run(&gg.window)
2019-06-22 21:20:28 +03:00
}
2020-06-04 21:26:18 +03:00
pub fn (ctx &Context) draw_rect(x, y, w, h f32, c gx.Color) {
sgl.c4b(c.r, c.g, c.b, 255)
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()
}
2020-06-05 00:51:54 +03:00
pub fn (ctx &Context) draw_empty_rect(x, y, w, h f32, c gx.Color) {
sgl.c4b(c.r, c.g, c.b, 255)
sgl.begin_line_strip()
2020-06-05 00:51:54 +03:00
if ctx.scale == 1 {
sgl.v2f(x, y)
sgl.v2f(x + w, y)
sgl.v2f(x + w, y + h)
sgl.v2f(x, y + h)
sgl.v2f(x, y)
2020-08-02 00:40:25 +03:00
} else {
2020-06-05 00:51:54 +03:00
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)
2020-08-02 00:40:25 +03:00
sgl.v2f(x * ctx.scale, y * ctx.scale)
2020-06-05 00:51:54 +03:00
}
sgl.end()
}
2020-07-13 02:02:47 +03:00
pub fn (ctx &Context) draw_circle(x, y, r f32, c gx.Color) {
}
2020-08-02 00:40:25 +03:00
pub struct Image {
pub mut:
width int
height int
nr_channels int
ok bool
data voidptr
ext string
simg_ok bool
simg C.sg_image
2020-08-02 00:40:25 +03:00
}
2020-08-04 02:26:56 +03:00
pub fn create_image(file string) Image {
2020-08-02 00:40:25 +03:00
if !os.exists(file) {
2020-08-04 02:26:56 +03:00
println('gg.create_image(): file not found: $file')
2020-08-02 00:40:25 +03:00
return Image{} // none
}
stb_img := stbi.load(file)
mut img := Image{
width: stb_img.width
height: stb_img.height
nr_channels: stb_img.nr_channels
ok: stb_img.ok
data: stb_img.data
ext: stb_img.ext
}
return img
}
pub fn create_image_from_memory(buf byteptr, bufsize int) Image {
stb_img := stbi.load_from_memory(buf, bufsize)
mut img := Image{
width: stb_img.width
height: stb_img.height
nr_channels: stb_img.nr_channels
ok: stb_img.ok
data: stb_img.data
ext: stb_img.ext
}
return img
}
pub fn create_image_from_byte_array(b []byte) Image {
return create_image_from_memory(b.data, b.len)
}
pub fn (mut img Image) init_sokol_image() &Image {
2020-08-02 00:40:25 +03:00
mut img_desc := C.sg_image_desc{
width: img.width
height: img.height
num_mipmaps: 0
wrap_u: .clamp_to_edge
wrap_v: .clamp_to_edge
label: &byte(0)
d3d11_texture: 0
}
img_desc.content.subimage[0][0] = C.sg_subimage_content{
ptr: img.data
size: img.nr_channels * img.width * img.height
}
img.simg = C.sg_make_image(&img_desc)
img.simg_ok = true
2020-08-02 00:40:25 +03:00
return img
}
2020-06-04 21:26:18 +03:00
pub fn (gg &Context) begin() {
2020-07-06 20:45:00 +03:00
if gg.render_text && gg.font_inited {
gg.ft.flush()
}
sgl.defaults()
sgl.matrix_mode_projection()
sgl.ortho(0.0, f32(sapp.width()), f32(sapp.height()), 0.0, -1.0, 1.0)
2020-01-27 22:42:32 +03:00
}
2020-06-04 21:26:18 +03:00
pub fn (gg &Context) end() {
gfx.begin_default_pass(gg.clear_pass, sapp.width(), sapp.height())
sgl.draw()
gfx.end_pass()
gfx.commit()
if gg.config.wait_events {
2020-08-02 00:40:25 +03:00
// println('gg: waiting')
wait_events()
}
2019-06-22 21:20:28 +03:00
}
pub fn (ctx &Context) draw_line(x, y, x2, y2 f32, c gx.Color) {
sgl.c4b(c.r, c.g, c.b, 255)
sgl.begin_line_strip()
sgl.v2f(x * ctx.scale, y * ctx.scale)
sgl.v2f(x2 * ctx.scale, y2 * ctx.scale)
sgl.end()
2020-08-02 00:40:25 +03:00
}
pub fn (ctx &Context) draw_image(x, y, width, height f32, img &Image) {
if !img.simg_ok {
unsafe {
mut image := img
image.init_sokol_image()
}
}
u0 := f32(0.0)
v0 := f32(0.0)
u1 := f32(1.0)
v1 := f32(1.0)
2020-08-04 02:26:56 +03:00
x0 := f32(x) * ctx.scale
y0 := f32(y) * ctx.scale
x1 := f32(x + width) * ctx.scale
y1 := f32(y + height) * ctx.scale
//
sgl.load_pipeline(ctx.timage_pip)
sgl.enable_texture()
sgl.texture(img.simg)
2020-08-02 00:40:25 +03:00
sgl.begin_quads()
sgl.c4b(255, 255, 255, 255)
sgl.v2f_t2f(x0, y0, u0, v0)
sgl.v2f_t2f(x1, y0, u1, v0)
sgl.v2f_t2f(x1, y1, u1, v1)
sgl.v2f_t2f(x0, y1, u0, v1)
2020-08-02 00:40:25 +03:00
sgl.end()
sgl.disable_texture()
}
pub fn (ctx &Context) draw_rounded_rect(x, y, width, height, radius f32, color gx.Color) {
2020-07-06 20:45:00 +03:00
}
pub fn (ctx &Context) draw_empty_rounded_rect(x, y, width, height, radius f32, border_color gx.Color) {
}
fn C.WaitMessage()
pub fn wait_events() {
unsafe {
2020-08-02 00:40:25 +03:00
$if macos {
#NSEvent *event = [NSApp nextEventMatchingMask:NSEventMaskAny
#untilDate:[NSDate distantFuture]
#inMode:NSDefaultRunLoopMode
#dequeue:YES];
#[NSApp sendEvent:event];
}
$if windows {
C.WaitMessage()
}
}
2020-02-03 06:01:39 +03:00
}