gg: cache sokol C.sg_image handles
Delyan Angelov
parent
ab7936f514
commit
221a777a80
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@ -3,7 +3,6 @@
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module gg
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import gx
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import os
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import sokol
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import sokol.sapp
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import sokol.sgl
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112
vlib/gg/image.v
112
vlib/gg/image.v
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@ -2,46 +2,71 @@
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// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
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module gg
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import gx
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import os
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import sokol
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import sokol.sapp
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import sokol.sgl
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import sokol.gfx
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import stbi
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pub struct Image {
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pub mut:
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//id int
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id int // used as an index in image_cache.slots
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width int
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height int
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nr_channels int
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ok bool
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data voidptr
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ext string
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simg_ok bool
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simg C.sg_image
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path string
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}
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/*
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struct ImageCache {
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id int
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mut:
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simg C.sg_image
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ok bool
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//
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struct ImageCacheSlot {
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id int
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simg_ok bool
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simg C.sg_image
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}
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*/
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//pub fn (mut ctx Context) create_image(file string) Image {
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[ref_only]
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struct ImageCache {
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mut:
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current_image_id int = -1
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slots []ImageCacheSlot
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}
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fn new_image_cache() &ImageCache {
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return &ImageCache{}
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}
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fn (ic &ImageCache) get_new_id() int {
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mut mic := &ImageCache(0)
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unsafe {
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mic = ic
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}
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mic.current_image_id++
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mic.slots << ImageCacheSlot {
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id: mic.current_image_id
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simg_ok: false
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}
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return ic.current_image_id
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}
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fn (ic &ImageCache) set_simg(id int, simg C.sg_image) {
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if id >= ic.slots.len {
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panic('invalid image cache id: $id, slots.len: $ic.slots.len')
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}
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mut mic := &ImageCache(0)
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unsafe {
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mic = ic
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}
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mic.slots[id] = ImageCacheSlot{ id: id, simg_ok: true, simg: simg }
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}
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const (
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image_cache = new_image_cache()
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)
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//
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pub fn create_image(file string) Image {
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if !os.exists(file) {
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println('gg.create_image(): file not found: $file')
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return Image{} // none
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}
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//id := ctx.img_buf.len
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stb_img := stbi.load(file)
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mut img := Image{
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id: image_cache.get_new_id()
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width: stb_img.width
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height: stb_img.height
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nr_channels: stb_img.nr_channels
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@ -49,18 +74,14 @@ pub fn create_image(file string) Image {
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data: stb_img.data
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ext: stb_img.ext
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path: file
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//id: id
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}
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img.init_sokol_image()
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//ctx.img_buf << ImageCache {
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//id: id
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//}
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return img
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}
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pub fn create_image_from_memory(buf byteptr, bufsize int) Image {
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stb_img := stbi.load_from_memory(buf, bufsize)
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mut img := Image{
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id: image_cache.get_new_id()
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width: stb_img.width
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height: stb_img.height
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nr_channels: stb_img.nr_channels
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@ -75,8 +96,8 @@ pub fn create_image_from_byte_array(b []byte) Image {
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return create_image_from_memory(b.data, b.len)
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}
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pub fn (mut img Image) init_sokol_image() &Image {
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println('\n init sokol image $img.path ok=$img.simg_ok')
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pub fn (img &Image) new_sokol_image() C.sg_image {
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//eprintln('> new_sokol_image from img: $img')
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mut img_desc := C.sg_image_desc{
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width: img.width
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height: img.height
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@ -90,41 +111,22 @@ pub fn (mut img Image) init_sokol_image() &Image {
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ptr: img.data
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size: img.nr_channels * img.width * img.height
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}
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img.simg = C.sg_make_image(&img_desc)
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img.simg_ok = true
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return img
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simg := C.sg_make_image(&img_desc)
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return simg
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}
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fn (mut ctx Context) cache_sokol_image(img &Image) {
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//println('\ncache sokol image $img.path ok=$img.simg_ok')
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mut img_desc := C.sg_image_desc{
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width: img.width
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height: img.height
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num_mipmaps: 0
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wrap_u: .clamp_to_edge
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wrap_v: .clamp_to_edge
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label: &byte(0)
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d3d11_texture: 0
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pub fn (img &Image) get_sokol_image() C.sg_image {
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slot := image_cache.slots[img.id]
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if slot.simg_ok {
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return slot.simg
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}
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img_desc.content.subimage[0][0] = C.sg_subimage_content{
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ptr: img.data
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size: img.nr_channels * img.width * img.height
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}
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//ctx.img_cache[img.id].simg = C.sg_make_image(&img_desc)
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//ctx.img_cache[img.id].ok = true
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simg := img.new_sokol_image()
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image_cache.set_simg(img.id, simg)
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return simg
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}
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pub fn (ctx &Context) draw_image(x, y, width, height f32, img &Image) {
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if !img.simg_ok {
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return
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//ctx.cache_sokol_image(img)
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/*
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unsafe {
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mut image := img
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image.init_sokol_image()
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}
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*/
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}
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simg := img.get_sokol_image()
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u0 := f32(0.0)
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v0 := f32(0.0)
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u1 := f32(1.0)
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@ -136,7 +138,7 @@ pub fn (ctx &Context) draw_image(x, y, width, height f32, img &Image) {
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//
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sgl.load_pipeline(ctx.timage_pip)
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sgl.enable_texture()
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sgl.texture(img.simg)
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sgl.texture(simg)
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sgl.begin_quads()
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sgl.c4b(255, 255, 255, 255)
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sgl.v2f_t2f(x0, y0, u0, v0)
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@ -146,5 +148,3 @@ pub fn (ctx &Context) draw_image(x, y, width, height f32, img &Image) {
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sgl.end()
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sgl.disable_texture()
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}
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