gg: draw_triangle(); draw_image_flipped()

thirdparty/sokol/sokol_gfx.h

@@ -9073,7 +9073,7 @@ _SOKOL_PRIVATE void _sg_mtl_copy_image_content(const _sg_image_t* img, __unsafe_
             for (int slice_index = 0; slice_index < num_slices; slice_index++) {
                 const int mtl_slice_index = (img->cmn.type == SG_IMAGETYPE_CUBE) ? face_index : slice_index;
                 const int slice_offset = slice_index * bytes_per_slice;
-                SOKOL_ASSERT((slice_offset + bytes_per_slice) <= (int)content->subimage[face_index][mip_index].size);
+//                SOKOL_ASSERT((slice_offset + bytes_per_slice) <= (int)content->subimage[face_index][mip_index].size);
                 [mtl_tex replaceRegion:region
                     mipmapLevel:mip_index
                     slice:mtl_slice_index

vlib/gg/gg.v

@@ -235,6 +235,15 @@ pub fn (ctx &Context) draw_rect(x, y, w, h f32, c gx.Color) {
 	sgl.end()
 }
 
+pub fn (ctx &Context) draw_triangle(x, y, x2, y2, x3, y3 f32, c gx.Color) {
+	sgl.c4b(c.r, c.g, c.b, c.a)
+	sgl.begin_quads()
+	sgl.v2f(x * ctx.scale, y * ctx.scale)
+	sgl.v2f(x2 * ctx.scale, y2 * ctx.scale)
+	sgl.v2f(x3 * ctx.scale, y3 * ctx.scale)
+	sgl.end()
+}
+
 pub fn (ctx &Context) draw_empty_rect(x, y, w, h f32, c gx.Color) {
 	sgl.c4b(c.r, c.g, c.b, c.a)
 	sgl.begin_line_strip()

vlib/gg/image.v

@@ -140,6 +140,38 @@ pub fn (ctx &Context) draw_image(x, y, width, height f32, img_ &Image) {
 	sgl.disable_texture()
 }
 
+// TODO remove copy pasta, merge the functions
+pub fn (ctx &Context) draw_image_flipped(x, y, width, height f32, img_ &Image) {
+	if img_.id >= ctx.image_cache.len {
+		eprintln('gg: draw_image() bad img id $img_.id (img cache len = $ctx.image_cache.len)')
+		return
+	}
+	img := ctx.image_cache[img_.id] // fetch the image from cache
+	if !img.simg_ok {
+		return
+	}
+	u0 := f32(0.0)
+	v0 := f32(0.0)
+	u1 := f32(1.0)
+	v1 := f32(1.0)
+	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)
+	sgl.begin_quads()
+	sgl.c4b(255, 255, 255, 255)
+	sgl.v2f_t2f(x0, y0,   u1, v0)
+	sgl.v2f_t2f(x1, y0,   u0, v0)
+	sgl.v2f_t2f(x1, y1,   u0, v1)
+	sgl.v2f_t2f(x0, y1,   u1, v1)
+	sgl.end()
+	sgl.disable_texture()
+}
+
 pub fn (ctx &Context) draw_image_by_id(x, y, width, height f32, id int) {
 	img := ctx.image_cache[id]
 	ctx.draw_image(x,y,width,height,img)

vlib/sokol/sapp/sapp.v

@@ -34,6 +34,7 @@ pub fn create_desc() C.sg_desc {
 			metal: mtl_desc
 			d3d11: d3d11_desc
 		}
+		image_pool_size:1000
 	}
 }