533 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			V
		
	
	
			
		
		
	
	
			533 lines
		
	
	
		
			13 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_metal_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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| 	force_gles2 bool
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| }
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| 
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| pub struct C.sg_metal_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_color_state {
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| pub mut:
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| 	pixel_format PixelFormat
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| 	write_mask   ColorMask
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| 	blend        C.sg_blend_state
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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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| 	shader                    C.sg_shader
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| 	layout                    C.sg_layout_desc
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| 	depth                     C.sg_depth_state
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| 	stencil                   C.sg_stencil_state
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| 	color_count               int
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| 	colors                    [4]C.sg_color_state // C.SG_MAX_COLOR_ATTACHMENTS
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| 	primitive_type            PrimitiveType
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| 	index_type                IndexType
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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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| 	blend_color               C.sg_color
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| 	alpha_to_coverage_enabled bool
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| 	label                     &char = &char(0)
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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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| 	range := C.sg_range{
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| 		ptr: data
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| 		size: size_t(element_size * element_count)
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| 	}
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| 	C.sg_update_buffer(b.vertex_buffers[index], &range)
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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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| 	range := C.sg_range{
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| 		ptr: data
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| 		size: size_t(element_size * element_count)
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| 	}
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| 	return C.sg_append_buffer(b.vertex_buffers[index], &range)
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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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| 	range := C.sg_range{
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| 		ptr: data
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| 		size: size_t(element_size * element_count)
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| 	}
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| 	C.sg_update_buffer(b.index_buffer, &range)
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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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| 	range := C.sg_range{
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| 		ptr: data
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| 		size: size_t(element_size * element_count)
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| 	}
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| 	return C.sg_append_buffer(b.index_buffer, &range)
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| }
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| 
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| [heap]
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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         &char
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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 = &char(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 = &char(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 = &char(name.str)
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| 	desc.vs.images[index].image_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 = &char(name.str)
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| 	desc.fs.images[index].image_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 size_t) &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 size_t) &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 = &char(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 = &char(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      &char // GLSL vertex attribute name (only required for GLES2)
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| 	sem_name  &char // 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         &char
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| 	bytecode       C.sg_range
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| 	entry          &char
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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 = &char(name.str)
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| 	desc.images[index].image_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     size_t
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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        &char
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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       &char
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| 	image_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_range {
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| pub mut:
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| 	ptr  voidptr
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| 	size size_t
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| }
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| 
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| pub struct C.sg_color {
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| pub mut:
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| 	r f32
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| 	g f32
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| 	b f32
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| 	a f32
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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_pass_attachment_desc
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| 	depth_stencil_attachment C.sg_pass_attachment_desc
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| 	label                    &char
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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          size_t
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| 	@type         BufferType
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| 	usage         Usage
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| 	data          C.sg_range
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| 	label         &char
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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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| 	num_slices     int
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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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| 	data           C.sg_image_data
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| 	label          &char
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| 	// GL specific
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| 	gl_textures       [2]u32
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| 	gl_texture_target 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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| 	d3d11_shader_resource_view voidptr
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| 	// WebGPU specific
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| 	wgpu_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_data {
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| pub mut:
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| 	// subimage [C.SG_CUBEFACE_NUM][C.SG_MAX_MIPMAPS]C.sg_range
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| 	subimage [6][16]C.sg_range
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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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| 	mrt_independent_blend_state bool // multiple-render-target rendering can use per-render-target blend state
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| 	mrt_independent_write_mask  bool // multiple-render-target rendering can use per-render-target color write masks
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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_stencil_state {
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| 	enabled    bool
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| 	front      C.sg_stencil_face_state
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| 	back       C.sg_stencil_face_state
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| 	read_mask  byte
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| 	write_mask byte
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| 	ref        byte
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| }
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| 
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| pub struct C.sg_depth_state {
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| 	pixel_format     PixelFormat
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| 	compare          CompareFunc
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| 	write_enabled    bool
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| 	bias             f32
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| 	bias_slope_scale f32
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| 	bias_clamp       f32
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| }
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| 
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| pub struct C.sg_stencil_face_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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| }
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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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| 	value  C.sg_color
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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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| 	value  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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| 	value  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_pass_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
 | |
| 	// union {
 | |
| 	// face int
 | |
| 	// layer int
 | |
| 	// slice int
 | |
| 	// }
 | |
| }
 |