503 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			V
		
	
	
			
		
		
	
	
			503 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			V
		
	
	
| module gfx
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| 
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| pub struct C.sg_desc {
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| 	_start_canary      u32
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| 	buffer_pool_size   int
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| 	image_pool_size    int
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| 	shader_pool_size   int
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| 	pipeline_pool_size int
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| 	pass_pool_size     int
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| 	context_pool_size  int
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| 	context            C.sg_context_desc
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| 	/*
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| 	// GL specific
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|     gl_force_gles2 bool
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|     // Metal-specific
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|     mtl_device voidptr
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|     mtl_renderpass_descriptor_cb fn() voidptr
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|     mtl_drawable_cb fn() voidptr
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|     mtl_global_uniform_buffer_size int
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|     mtl_sampler_cache_size int
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|     // D3D11-specific
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|     d3d11_device voidptr
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|     d3d11_device_context voidptr
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|     d3d11_render_target_view_cb fn() voidptr
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|     d3d11_depth_stencil_view_cb fn() voidptr
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| 	*/
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| 	_end_canary        u32
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| }
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| 
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| pub struct C.sg_context_desc {
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| 	/*
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| 	sg_pixel_format color_format;
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|     sg_pixel_format depth_format;
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|     int sample_count;
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|     sg_wgpu_context_desc wgpu;
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| 	*/
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| 	sample_count int
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| 	gl           C.sg_gl_context_desc
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| 	metal        C.sg_mtl_context_desc
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| 	d3d11        C.sg_d3d11_context_desc
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| 	color_format PixelFormat
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| 	depth_format PixelFormat
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| }
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| 
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| pub struct C.sg_gl_context_desc {
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| 	gl_force_gles2 bool
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| }
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| 
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| pub struct C.sg_mtl_context_desc {
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| 	device                   voidptr
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| 	renderpass_descriptor_cb fn () voidptr
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| 	drawable_cb              fn () voidptr
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| }
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| 
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| pub struct C.sg_d3d11_context_desc {
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| 	device                voidptr
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| 	device_context        voidptr
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| 	render_target_view_cb fn () voidptr
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| 	depth_stencil_view_cb fn () voidptr
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| }
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| 
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| pub struct C.sg_pipeline_desc {
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| pub mut:
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| 	_start_canary  u32
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| 	layout         C.sg_layout_desc
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| 	shader         C.sg_shader
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| 	primitive_type PrimitiveType
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| 	index_type     IndexType
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| 	depth_stencil  C.sg_depth_stencil_state
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| 	blend          C.sg_blend_state
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| 	rasterizer     C.sg_rasterizer_state
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| 	label          byteptr
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| 	_end_canary    u32
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| }
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| 
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| pub struct C.sg_pipeline_info {
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| }
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| 
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| pub struct C.sg_pipeline {
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| pub:
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| 	id u32
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| }
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| 
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| pub fn (p C.sg_pipeline) free() {
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| 	C.sg_destroy_pipeline(p)
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| }
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| 
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| pub struct C.sg_bindings {
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| pub mut:
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| 	_start_canary         u32
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| 	vertex_buffers        [8]C.sg_buffer
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| 	vertex_buffer_offsets [8]int
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| 	index_buffer          C.sg_buffer
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| 	index_buffer_offset   int
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| 	vs_images             [8]C.sg_image
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| 	fs_images             [8]C.sg_image
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| 	_end_canary           u32
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| }
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| 
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| pub fn (mut b C.sg_bindings) set_vert_image(index int, img C.sg_image) {
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| 	b.vs_images[index] = img
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| }
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| 
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| pub fn (mut b C.sg_bindings) set_frag_image(index int, img C.sg_image) {
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| 	b.fs_images[index] = img
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| }
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| 
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| pub fn (b &C.sg_bindings) update_vert_buffer(index int, data voidptr, element_size int, element_count int) {
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| 	C.sg_update_buffer(b.vertex_buffers[index], data, element_size * element_count)
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| }
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| 
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| pub fn (b &C.sg_bindings) append_vert_buffer(index int, data voidptr, element_size int, element_count int) int {
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| 	return C.sg_append_buffer(b.vertex_buffers[index], data, element_size * element_count)
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| }
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| 
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| pub fn (b &C.sg_bindings) update_index_buffer(data voidptr, element_size int, element_count int) {
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| 	C.sg_update_buffer(b.index_buffer, data, element_size * element_count)
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| }
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| 
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| pub fn (b &C.sg_bindings) append_index_buffer(data voidptr, element_size int, element_count int) int {
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| 	return C.sg_append_buffer(b.index_buffer, data, element_size * element_count)
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| }
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| 
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| pub struct C.sg_shader_desc {
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| pub mut:
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| 	_start_canary u32
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| 	attrs         [16]C.sg_shader_attr_desc
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| 	vs            C.sg_shader_stage_desc
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| 	fs            C.sg_shader_stage_desc
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| 	label         byteptr
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| 	_end_canary   u32
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_vert_src(src string) &C.sg_shader_desc {
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| 	desc.vs.source = src.str
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| 	return desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_frag_src(src string) &C.sg_shader_desc {
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| 	desc.fs.source = src.str
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| 	return desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_vert_image(index int, name string) &C.sg_shader_desc {
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| 	desc.vs.images[index].name = name.str
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| 	desc.vs.images[index].@type = ._2d
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| 	return desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_frag_image(index int, name string) &C.sg_shader_desc {
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| 	desc.fs.images[index].name = name.str
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| 	desc.fs.images[index].@type = ._2d
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| 	return desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_vert_uniform_block_size(block_index int, size int) &C.sg_shader_desc {
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| 	desc.vs.uniform_blocks[block_index].size = size
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| 	return desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_frag_uniform_block_size(block_index int, size int) &C.sg_shader_desc {
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| 	desc.fs.uniform_blocks[block_index].size = size
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| 	return desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_vert_uniform(block_index int, uniform_index int, name string, @type UniformType, array_count int) &C.sg_shader_desc {
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| 	desc.vs.uniform_blocks[block_index].uniforms[uniform_index].name = name.str
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| 	desc.vs.uniform_blocks[block_index].uniforms[uniform_index].@type = @type
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| 	return desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_desc) set_frag_uniform(block_index int, uniform_index int, name string, @type UniformType, array_count int) &C.sg_shader_desc {
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| 	desc.fs.uniform_blocks[block_index].uniforms[uniform_index].name = name.str
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| 	desc.fs.uniform_blocks[block_index].uniforms[uniform_index].@type = @type
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| 	return desc
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| }
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| 
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| pub fn (desc &C.sg_shader_desc) make_shader() C.sg_shader {
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| 	return C.sg_make_shader(desc)
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| }
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| 
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| pub struct C.sg_shader_attr_desc {
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| pub mut:
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| 	name      byteptr // GLSL vertex attribute name (only required for GLES2)
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| 	sem_name  byteptr // HLSL semantic name
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| 	sem_index int // HLSL semantic index
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| }
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| 
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| pub struct C.sg_shader_stage_desc {
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| pub mut:
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| 	source         byteptr
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| 	byte_code      &byte
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| 	byte_code_size int
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| 	entry          byteptr
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| 	uniform_blocks [4]C.sg_shader_uniform_block_desc
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| 	images         [12]C.sg_shader_image_desc
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| }
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| 
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| pub fn (mut desc C.sg_shader_stage_desc) set_image(index int, name string) C.sg_shader_stage_desc {
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| 	desc.images[index].name = name.str
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| 	desc.images[index].@type = ._2d
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| 	return *desc
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| }
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| 
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| pub struct C.sg_shader_uniform_block_desc {
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| pub mut:
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| 	size     int
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| 	uniforms [16]C.sg_shader_uniform_desc
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| }
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| 
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| pub struct C.sg_shader_uniform_desc {
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| pub mut:
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| 	name        byteptr
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| 	@type       UniformType
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| 	array_count int
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| }
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| 
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| pub struct C.sg_shader_image_desc {
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| pub mut:
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| 	name  byteptr
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| 	@type ImageType
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| }
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| 
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| pub struct C.sg_shader_info {
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| }
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| 
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| pub struct C.sg_context {
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| 	id u32
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| }
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| 
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| pub struct C.sg_shader {
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| pub:
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| 	id u32
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| }
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| 
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| pub fn (s C.sg_shader) free() {
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| 	C.sg_destroy_shader(s)
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| }
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| 
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| pub struct C.sg_pass_desc {
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| pub mut:
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| 	_start_canary            u32
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| 	color_attachments        [4]C.sg_attachment_desc
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| 	depth_stencil_attachment C.sg_attachment_desc
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| 	label                    byteptr
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| 	_end_canary              u32
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| }
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| 
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| pub struct C.sg_pass_info {
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| 	info C.sg_slot_info
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| }
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| 
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| pub struct C.sg_pass_action {
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| pub mut:
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| 	_start_canary u32
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| 	colors        [4]C.sg_color_attachment_action
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| 	depth         C.sg_depth_attachment_action
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| 	stencil       C.sg_stencil_attachment_action
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| 	_end_canary   u32
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| }
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| 
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| pub struct C.sg_pass {
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| 	id u32
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| }
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| 
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| pub fn (p C.sg_pass) free() {
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| 	C.sg_destroy_pass(p)
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| }
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| 
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| pub struct C.sg_buffer_desc {
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| pub mut:
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| 	_start_canary u32
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| 	size          int
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| 	@type         BufferType
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| 	usage         Usage
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| 	content       byteptr
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| 	label         byteptr
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| 	// GL specific
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| 	gl_buffers    [2]u32
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| 	// Metal specific
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| 	mtl_buffers   [2]voidptr
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| 	// D3D11 specific
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| 	d3d11_buffer  voidptr
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| 	_end_canary   u32
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| }
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| 
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| pub struct C.sg_buffer_info {
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| }
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| 
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| pub struct C.sg_buffer {
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| 	id u32
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| }
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| 
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| pub fn (b C.sg_buffer) free() {
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| 	C.sg_destroy_buffer(b)
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| }
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| 
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| pub struct DepthLayers {
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| 	depth  int
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| 	layers int
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| }
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| 
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| pub struct C.sg_image_desc {
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| pub mut:
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| 	_start_canary  u32
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| 	@type          ImageType
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| 	render_target  bool
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| 	width          int
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| 	height         int
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| 	depth          DepthLayers
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| 	// depth int
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| 	// union {
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| 	// int depth;
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| 	// int layers;
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| 	// };
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| 	num_mipmaps    int
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| 	usage          Usage
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| 	pixel_format   PixelFormat
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| 	sample_count   int
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| 	min_filter     Filter
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| 	mag_filter     Filter
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| 	wrap_u         Wrap
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| 	wrap_v         Wrap
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| 	wrap_w         Wrap
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| 	border_color   BorderColor
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| 	max_anisotropy u32
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| 	min_lod        f32
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| 	max_lod        f32
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| 	content        C.sg_image_content
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| 	label          byteptr
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| 	// GL specific
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| 	gl_textures    [2]u32
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| 	// Metal specific
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| 	mtl_textures   [2]voidptr
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| 	// D3D11 specific
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| 	d3d11_texture  voidptr
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| 	_end_canary    u32
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| }
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| 
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| pub struct C.sg_image_info {
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| pub mut:
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| 	slot            C.sg_slot_info // resource pool slot info
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| 	upd_frame_index u32 // frame index of last sg_update_image()
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| 	num_slots       int // number of renaming-slots for dynamically updated images
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| 	active_slot     int // currently active write-slot for dynamically updated images
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| }
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| 
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| pub struct C.sg_image {
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| pub:
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| 	id u32
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| }
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| 
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| pub fn (i C.sg_image) free() {
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| 	C.sg_destroy_image(i)
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| }
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| 
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| pub struct C.sg_image_content {
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| pub mut:
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| 	subimage [6][16]C.sg_subimage_content
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| }
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| 
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| pub struct C.sg_subimage_content {
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| pub mut:
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| 	ptr  voidptr // pointer to subimage data
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| 	size int // size in bytes of pointed-to subimage data
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| }
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| 
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| pub struct C.sg_features {
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| pub:
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| 	instancing              bool // hardware instancing supported
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| 	origin_top_left         bool // framebuffer and texture origin is in top left corner
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| 	multiple_render_targets bool // offscreen render passes can have multiple render targets attached
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| 	msaa_render_targets     bool // offscreen render passes support MSAA antialiasing
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| 	imagetype_3d            bool // creation of SG_IMAGETYPE_3D images is supported
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| 	imagetype_array         bool // creation of SG_IMAGETYPE_ARRAY images is supported
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| 	image_clamp_to_border   bool // border color and clamp-to-border UV-wrap mode is supported
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| }
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| 
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| pub struct C.sg_limits {
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| pub:
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| 	max_image_size_2d      u32 // max width/height of SG_IMAGETYPE_2D images
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| 	max_image_size_cube    u32 // max width/height of SG_IMAGETYPE_CUBE images
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| 	max_image_size_3d      u32 // max width/height/depth of SG_IMAGETYPE_3D images
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| 	max_image_size_array   u32 // max width/height pf SG_IMAGETYPE_ARRAY images
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| 	max_image_array_layers u32 // max number of layers in SG_IMAGETYPE_ARRAY images
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| 	max_vertex_attrs       u32 // <= SG_MAX_VERTEX_ATTRIBUTES (only on some GLES2 impls)
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| }
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| 
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| pub struct C.sg_layout_desc {
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| pub mut:
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| 	buffers [8]C.sg_buffer_layout_desc
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| 	attrs   [16]C.sg_vertex_attr_desc
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| }
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| 
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| pub struct C.sg_buffer_layout_desc {
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| pub mut:
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| 	stride    int
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| 	step_func VertexStep
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| 	step_rate int
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| }
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| 
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| pub struct C.sg_vertex_attr_desc {
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| pub mut:
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| 	buffer_index int
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| 	offset       int
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| 	format       VertexFormat
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| }
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| 
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| pub struct C.sg_depth_stencil_state {
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| 	stencil_front       C.sg_stencil_state
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| 	stencil_back        C.sg_stencil_state
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| 	depth_compare_func  CompareFunc
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| 	depth_write_enabled bool
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| 	stencil_enabled     bool
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| 	stencil_read_mask   byte
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| 	stencil_write_mask  byte
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| 	stencil_ref         byte
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| }
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| 
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| pub struct C.sg_stencil_state {
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| 	fail_op       StencilOp
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| 	depth_fail_op StencilOp
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| 	pass_op       StencilOp
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| 	compare_func  CompareFunc
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| }
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| 
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| pub struct C.sg_blend_state {
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| pub mut:
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| 	enabled                bool
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| 	src_factor_rgb         BlendFactor
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| 	dst_factor_rgb         BlendFactor
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| 	op_rgb                 BlendOp
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| 	src_factor_alpha       BlendFactor
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| 	dst_factor_alpha       BlendFactor
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| 	op_alpha               BlendOp
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| 	color_write_mask       byte
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| 	color_attachment_count int
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| 	color_format           PixelFormat
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| 	depth_format           PixelFormat
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| 	blend_color            [4]f32
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| }
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| 
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| pub struct C.sg_rasterizer_state {
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| pub mut:
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| 	alpha_to_coverage_enabled bool
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| 	cull_mode                 CullMode
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| 	face_winding              FaceWinding
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| 	sample_count              int
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| 	depth_bias                f32
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| 	depth_bias_slope_scale    f32
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| 	depth_bias_clamp          f32
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| }
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| 
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| pub struct C.sg_color_attachment_action {
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| pub mut:
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| 	action Action
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| 	val    [4]f32
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| }
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| 
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| /*
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| pub fn (mut action C.sg_color_attachment_action) set_color_values(r, g, b, a f32) {
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|     action.val[0] = r
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|     action.val[1] = g
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|     action.val[2] = b
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|     action.val[3] = a
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| }
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| */
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| pub struct C.sg_depth_attachment_action {
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| pub mut:
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| 	action Action
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| 	val    f32
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| }
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| 
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| pub struct C.sg_stencil_attachment_action {
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| pub mut:
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| 	action Action
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| 	val    byte
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| }
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| 
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| pub struct C.sg_pixelformat_info {
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| pub:
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| 	sample bool // pixel format can be sampled in shaders
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| 	filter bool // pixel format can be sampled with filtering
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| 	render bool // pixel format can be used as render target
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| 	blend  bool // alpha-blending is supported
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| 	msaa   bool // pixel format can be used as MSAA render target
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| 	depth  bool // pixel format is a depth format
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| }
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| 
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| pub struct C.sg_attachment_desc {
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| pub mut:
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| 	image     C.sg_image
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| 	mip_level int
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| 	face      int
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| 	// image sg_image
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| 	// mip_level int
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| 	// union {
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| 	// face int
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| 	// layer int
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| 	// slice int
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| 	// }
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| }
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