impl super::AdapterShared { pub(super) fn describe_texture_format( &self, texture_format: wgt::TextureFormat, ) -> super::TextureFormatDesc { use wgt::TextureFormat as Tf; use wgt::{AstcBlock, AstcChannel}; let (internal, external, data_type) = match texture_format { Tf::R8Unorm => (glow::R8, glow::RED, glow::UNSIGNED_BYTE), Tf::R8Snorm => (glow::R8_SNORM, glow::RED, glow::BYTE), Tf::R8Uint => (glow::R8UI, glow::RED_INTEGER, glow::UNSIGNED_BYTE), Tf::R8Sint => (glow::R8I, glow::RED_INTEGER, glow::BYTE), Tf::R16Uint => (glow::R16UI, glow::RED_INTEGER, glow::UNSIGNED_SHORT), Tf::R16Sint => (glow::R16I, glow::RED_INTEGER, glow::SHORT), Tf::R16Unorm => (glow::R16, glow::RED, glow::UNSIGNED_SHORT), Tf::R16Snorm => (glow::R16_SNORM, glow::RED, glow::SHORT), Tf::R16Float => (glow::R16F, glow::RED, glow::HALF_FLOAT), Tf::Rg8Unorm => (glow::RG8, glow::RG, glow::UNSIGNED_BYTE), Tf::Rg8Snorm => (glow::RG8_SNORM, glow::RG, glow::BYTE), Tf::Rg8Uint => (glow::RG8UI, glow::RG_INTEGER, glow::UNSIGNED_BYTE), Tf::Rg8Sint => (glow::RG8I, glow::RG_INTEGER, glow::BYTE), Tf::R32Uint => (glow::R32UI, glow::RED_INTEGER, glow::UNSIGNED_INT), Tf::R32Sint => (glow::R32I, glow::RED_INTEGER, glow::INT), Tf::R32Float => (glow::R32F, glow::RED, glow::FLOAT), Tf::Rg16Uint => (glow::RG16UI, glow::RG_INTEGER, glow::UNSIGNED_SHORT), Tf::Rg16Sint => (glow::RG16I, glow::RG_INTEGER, glow::SHORT), Tf::Rg16Unorm => (glow::RG16, glow::RG, glow::UNSIGNED_SHORT), Tf::Rg16Snorm => (glow::RG16_SNORM, glow::RG, glow::SHORT), Tf::Rg16Float => (glow::RG16F, glow::RG, glow::HALF_FLOAT), Tf::Rgba8Unorm => (glow::RGBA8, glow::RGBA, glow::UNSIGNED_BYTE), Tf::Rgba8UnormSrgb => (glow::SRGB8_ALPHA8, glow::RGBA, glow::UNSIGNED_BYTE), Tf::Bgra8UnormSrgb => (glow::SRGB8_ALPHA8, glow::BGRA, glow::UNSIGNED_BYTE), //TODO? Tf::Rgba8Snorm => (glow::RGBA8_SNORM, glow::RGBA, glow::BYTE), Tf::Bgra8Unorm => (glow::RGBA8, glow::BGRA, glow::UNSIGNED_BYTE), //TODO? Tf::Rgba8Uint => (glow::RGBA8UI, glow::RGBA_INTEGER, glow::UNSIGNED_BYTE), Tf::Rgba8Sint => (glow::RGBA8I, glow::RGBA_INTEGER, glow::BYTE), Tf::Rgb10a2Unorm => ( glow::RGB10_A2, glow::RGBA, glow::UNSIGNED_INT_2_10_10_10_REV, ), Tf::Rg11b10Float => ( glow::R11F_G11F_B10F, glow::RGB, glow::UNSIGNED_INT_10F_11F_11F_REV, ), Tf::Rg32Uint => (glow::RG32UI, glow::RG_INTEGER, glow::UNSIGNED_INT), Tf::Rg32Sint => (glow::RG32I, glow::RG_INTEGER, glow::INT), Tf::Rg32Float => (glow::RG32F, glow::RG, glow::FLOAT), Tf::Rgba16Uint => (glow::RGBA16UI, glow::RGBA_INTEGER, glow::UNSIGNED_SHORT), Tf::Rgba16Sint => (glow::RGBA16I, glow::RGBA_INTEGER, glow::SHORT), Tf::Rgba16Unorm => (glow::RGBA16, glow::RGBA, glow::UNSIGNED_SHORT), Tf::Rgba16Snorm => (glow::RGBA16_SNORM, glow::RGBA, glow::SHORT), Tf::Rgba16Float => (glow::RGBA16F, glow::RGBA, glow::HALF_FLOAT), Tf::Rgba32Uint => (glow::RGBA32UI, glow::RGBA_INTEGER, glow::UNSIGNED_INT), Tf::Rgba32Sint => (glow::RGBA32I, glow::RGBA_INTEGER, glow::INT), Tf::Rgba32Float => (glow::RGBA32F, glow::RGBA, glow::FLOAT), Tf::Stencil8 => ( glow::STENCIL_INDEX8, glow::STENCIL_INDEX, glow::UNSIGNED_BYTE, ), Tf::Depth16Unorm => ( glow::DEPTH_COMPONENT16, glow::DEPTH_COMPONENT, glow::UNSIGNED_SHORT, ), Tf::Depth32Float => (glow::DEPTH_COMPONENT32F, glow::DEPTH_COMPONENT, glow::FLOAT), Tf::Depth32FloatStencil8 => ( glow::DEPTH32F_STENCIL8, glow::DEPTH_STENCIL, glow::FLOAT_32_UNSIGNED_INT_24_8_REV, ), Tf::Depth24Plus => ( glow::DEPTH_COMPONENT24, glow::DEPTH_COMPONENT, glow::UNSIGNED_INT, ), Tf::Depth24PlusStencil8 => ( glow::DEPTH24_STENCIL8, glow::DEPTH_STENCIL, glow::UNSIGNED_INT_24_8, ), Tf::Rgb9e5Ufloat => (glow::RGB9_E5, glow::RGB, glow::UNSIGNED_INT_5_9_9_9_REV), Tf::Bc1RgbaUnorm => (glow::COMPRESSED_RGBA_S3TC_DXT1_EXT, glow::RGBA, 0), Tf::Bc1RgbaUnormSrgb => (glow::COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, glow::RGBA, 0), Tf::Bc2RgbaUnorm => (glow::COMPRESSED_RGBA_S3TC_DXT3_EXT, glow::RGBA, 0), Tf::Bc2RgbaUnormSrgb => (glow::COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, glow::RGBA, 0), Tf::Bc3RgbaUnorm => (glow::COMPRESSED_RGBA_S3TC_DXT5_EXT, glow::RGBA, 0), Tf::Bc3RgbaUnormSrgb => (glow::COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, glow::RGBA, 0), Tf::Bc4RUnorm => (glow::COMPRESSED_RED_RGTC1, glow::RED, 0), Tf::Bc4RSnorm => (glow::COMPRESSED_SIGNED_RED_RGTC1, glow::RED, 0), Tf::Bc5RgUnorm => (glow::COMPRESSED_RG_RGTC2, glow::RG, 0), Tf::Bc5RgSnorm => (glow::COMPRESSED_SIGNED_RG_RGTC2, glow::RG, 0), Tf::Bc6hRgbUfloat => (glow::COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT, glow::RGB, 0), Tf::Bc6hRgbFloat => (glow::COMPRESSED_RGB_BPTC_SIGNED_FLOAT, glow::RGB, 0), Tf::Bc7RgbaUnorm => (glow::COMPRESSED_RGBA_BPTC_UNORM, glow::RGBA, 0), Tf::Bc7RgbaUnormSrgb => (glow::COMPRESSED_SRGB_ALPHA_BPTC_UNORM, glow::RGBA, 0), Tf::Etc2Rgb8Unorm => (glow::COMPRESSED_RGB8_ETC2, glow::RGB, 0), Tf::Etc2Rgb8UnormSrgb => (glow::COMPRESSED_SRGB8_ETC2, glow::RGB, 0), Tf::Etc2Rgb8A1Unorm => ( glow::COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, glow::RGBA, 0, ), Tf::Etc2Rgb8A1UnormSrgb => ( glow::COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, glow::RGBA, 0, ), Tf::Etc2Rgba8Unorm => ( //TODO: this is a lie, it's not sRGB glow::COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, glow::RGBA, 0, ), Tf::Etc2Rgba8UnormSrgb => (glow::COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, glow::RGBA, 0), Tf::EacR11Unorm => (glow::COMPRESSED_R11_EAC, glow::RED, 0), Tf::EacR11Snorm => (glow::COMPRESSED_SIGNED_R11_EAC, glow::RED, 0), Tf::EacRg11Unorm => (glow::COMPRESSED_RG11_EAC, glow::RG, 0), Tf::EacRg11Snorm => (glow::COMPRESSED_SIGNED_RG11_EAC, glow::RG, 0), Tf::Astc { block, channel } => match channel { AstcChannel::Unorm | AstcChannel::Hdr => match block { AstcBlock::B4x4 => (glow::COMPRESSED_RGBA_ASTC_4x4_KHR, glow::RGBA, 0), AstcBlock::B5x4 => (glow::COMPRESSED_RGBA_ASTC_5x4_KHR, glow::RGBA, 0), AstcBlock::B5x5 => (glow::COMPRESSED_RGBA_ASTC_5x5_KHR, glow::RGBA, 0), AstcBlock::B6x5 => (glow::COMPRESSED_RGBA_ASTC_6x5_KHR, glow::RGBA, 0), AstcBlock::B6x6 => (glow::COMPRESSED_RGBA_ASTC_6x6_KHR, glow::RGBA, 0), AstcBlock::B8x5 => (glow::COMPRESSED_RGBA_ASTC_8x5_KHR, glow::RGBA, 0), AstcBlock::B8x6 => (glow::COMPRESSED_RGBA_ASTC_8x6_KHR, glow::RGBA, 0), AstcBlock::B8x8 => (glow::COMPRESSED_RGBA_ASTC_8x8_KHR, glow::RGBA, 0), AstcBlock::B10x5 => (glow::COMPRESSED_RGBA_ASTC_10x5_KHR, glow::RGBA, 0), AstcBlock::B10x6 => (glow::COMPRESSED_RGBA_ASTC_10x6_KHR, glow::RGBA, 0), AstcBlock::B10x8 => (glow::COMPRESSED_RGBA_ASTC_10x8_KHR, glow::RGBA, 0), AstcBlock::B10x10 => (glow::COMPRESSED_RGBA_ASTC_10x10_KHR, glow::RGBA, 0), AstcBlock::B12x10 => (glow::COMPRESSED_RGBA_ASTC_12x10_KHR, glow::RGBA, 0), AstcBlock::B12x12 => (glow::COMPRESSED_RGBA_ASTC_12x12_KHR, glow::RGBA, 0), }, AstcChannel::UnormSrgb => match block { AstcBlock::B4x4 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, glow::RGBA, 0), AstcBlock::B5x4 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, glow::RGBA, 0), AstcBlock::B5x5 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, glow::RGBA, 0), AstcBlock::B6x5 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, glow::RGBA, 0), AstcBlock::B6x6 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, glow::RGBA, 0), AstcBlock::B8x5 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, glow::RGBA, 0), AstcBlock::B8x6 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, glow::RGBA, 0), AstcBlock::B8x8 => (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, glow::RGBA, 0), AstcBlock::B10x5 => { (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, glow::RGBA, 0) } AstcBlock::B10x6 => { (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, glow::RGBA, 0) } AstcBlock::B10x8 => { (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, glow::RGBA, 0) } AstcBlock::B10x10 => { (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, glow::RGBA, 0) } AstcBlock::B12x10 => { (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, glow::RGBA, 0) } AstcBlock::B12x12 => { (glow::COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, glow::RGBA, 0) } }, }, }; super::TextureFormatDesc { internal, external, data_type, } } } pub(super) fn describe_vertex_format(vertex_format: wgt::VertexFormat) -> super::VertexFormatDesc { use super::VertexAttribKind as Vak; use wgt::VertexFormat as Vf; let (element_count, element_format, attrib_kind) = match vertex_format { Vf::Unorm8x2 => (2, glow::UNSIGNED_BYTE, Vak::Float), Vf::Snorm8x2 => (2, glow::BYTE, Vak::Float), Vf::Uint8x2 => (2, glow::UNSIGNED_BYTE, Vak::Integer), Vf::Sint8x2 => (2, glow::BYTE, Vak::Integer), Vf::Unorm8x4 => (4, glow::UNSIGNED_BYTE, Vak::Float), Vf::Snorm8x4 => (4, glow::BYTE, Vak::Float), Vf::Uint8x4 => (4, glow::UNSIGNED_BYTE, Vak::Integer), Vf::Sint8x4 => (4, glow::BYTE, Vak::Integer), Vf::Unorm16x2 => (2, glow::UNSIGNED_SHORT, Vak::Float), Vf::Snorm16x2 => (2, glow::SHORT, Vak::Float), Vf::Uint16x2 => (2, glow::UNSIGNED_SHORT, Vak::Integer), Vf::Sint16x2 => (2, glow::SHORT, Vak::Integer), Vf::Float16x2 => (2, glow::HALF_FLOAT, Vak::Float), Vf::Unorm16x4 => (4, glow::UNSIGNED_SHORT, Vak::Float), Vf::Snorm16x4 => (4, glow::SHORT, Vak::Float), Vf::Uint16x4 => (4, glow::UNSIGNED_SHORT, Vak::Integer), Vf::Sint16x4 => (4, glow::SHORT, Vak::Integer), Vf::Float16x4 => (4, glow::HALF_FLOAT, Vak::Float), Vf::Uint32 => (1, glow::UNSIGNED_INT, Vak::Integer), Vf::Sint32 => (1, glow::INT, Vak::Integer), Vf::Float32 => (1, glow::FLOAT, Vak::Float), Vf::Uint32x2 => (2, glow::UNSIGNED_INT, Vak::Integer), Vf::Sint32x2 => (2, glow::INT, Vak::Integer), Vf::Float32x2 => (2, glow::FLOAT, Vak::Float), Vf::Uint32x3 => (3, glow::UNSIGNED_INT, Vak::Integer), Vf::Sint32x3 => (3, glow::INT, Vak::Integer), Vf::Float32x3 => (3, glow::FLOAT, Vak::Float), Vf::Uint32x4 => (4, glow::UNSIGNED_INT, Vak::Integer), Vf::Sint32x4 => (4, glow::INT, Vak::Integer), Vf::Float32x4 => (4, glow::FLOAT, Vak::Float), Vf::Float64 | Vf::Float64x2 | Vf::Float64x3 | Vf::Float64x4 => unimplemented!(), }; super::VertexFormatDesc { element_count, element_format, attrib_kind, } } pub fn map_filter_modes( min: wgt::FilterMode, mag: wgt::FilterMode, mip: wgt::FilterMode, ) -> (u32, u32) { use wgt::FilterMode as Fm; let mag_filter = match mag { Fm::Nearest => glow::NEAREST, Fm::Linear => glow::LINEAR, }; let min_filter = match (min, mip) { (Fm::Nearest, Fm::Nearest) => glow::NEAREST_MIPMAP_NEAREST, (Fm::Nearest, Fm::Linear) => glow::NEAREST_MIPMAP_LINEAR, (Fm::Linear, Fm::Nearest) => glow::LINEAR_MIPMAP_NEAREST, (Fm::Linear, Fm::Linear) => glow::LINEAR_MIPMAP_LINEAR, }; (min_filter, mag_filter) } pub fn map_address_mode(mode: wgt::AddressMode) -> u32 { match mode { wgt::AddressMode::Repeat => glow::REPEAT, wgt::AddressMode::MirrorRepeat => glow::MIRRORED_REPEAT, wgt::AddressMode::ClampToEdge => glow::CLAMP_TO_EDGE, wgt::AddressMode::ClampToBorder => glow::CLAMP_TO_BORDER, //wgt::AddressMode::MirrorClamp => glow::MIRROR_CLAMP_TO_EDGE, } } pub fn map_compare_func(fun: wgt::CompareFunction) -> u32 { use wgt::CompareFunction as Cf; match fun { Cf::Never => glow::NEVER, Cf::Less => glow::LESS, Cf::LessEqual => glow::LEQUAL, Cf::Equal => glow::EQUAL, Cf::GreaterEqual => glow::GEQUAL, Cf::Greater => glow::GREATER, Cf::NotEqual => glow::NOTEQUAL, Cf::Always => glow::ALWAYS, } } pub fn map_primitive_topology(topology: wgt::PrimitiveTopology) -> u32 { use wgt::PrimitiveTopology as Pt; match topology { Pt::PointList => glow::POINTS, Pt::LineList => glow::LINES, Pt::LineStrip => glow::LINE_STRIP, Pt::TriangleList => glow::TRIANGLES, Pt::TriangleStrip => glow::TRIANGLE_STRIP, } } pub(super) fn map_primitive_state(state: &wgt::PrimitiveState) -> super::PrimitiveState { //Note: state.polygon_mode is not supported, see `Features::POLYGON_MODE_LINE` and //`Features::POLYGON_MODE_POINT` super::PrimitiveState { //Note: we are flipping the front face, so that // the Y-flip in the generated GLSL keeps the same visibility. // See `naga::back::glsl::WriterFlags::ADJUST_COORDINATE_SPACE`. front_face: match state.front_face { wgt::FrontFace::Cw => glow::CCW, wgt::FrontFace::Ccw => glow::CW, }, cull_face: match state.cull_mode { Some(wgt::Face::Front) => glow::FRONT, Some(wgt::Face::Back) => glow::BACK, None => 0, }, unclipped_depth: state.unclipped_depth, } } pub fn _map_view_dimension(dim: wgt::TextureViewDimension) -> u32 { use wgt::TextureViewDimension as Tvd; match dim { Tvd::D1 | Tvd::D2 => glow::TEXTURE_2D, Tvd::D2Array => glow::TEXTURE_2D_ARRAY, Tvd::Cube => glow::TEXTURE_CUBE_MAP, Tvd::CubeArray => glow::TEXTURE_CUBE_MAP_ARRAY, Tvd::D3 => glow::TEXTURE_3D, } } fn map_stencil_op(operation: wgt::StencilOperation) -> u32 { use wgt::StencilOperation as So; match operation { So::Keep => glow::KEEP, So::Zero => glow::ZERO, So::Replace => glow::REPLACE, So::Invert => glow::INVERT, So::IncrementClamp => glow::INCR, So::DecrementClamp => glow::DECR, So::IncrementWrap => glow::INCR_WRAP, So::DecrementWrap => glow::DECR_WRAP, } } fn map_stencil_ops(face: &wgt::StencilFaceState) -> super::StencilOps { super::StencilOps { pass: map_stencil_op(face.pass_op), fail: map_stencil_op(face.fail_op), depth_fail: map_stencil_op(face.depth_fail_op), } } pub(super) fn map_stencil(state: &wgt::StencilState) -> super::StencilState { super::StencilState { front: super::StencilSide { function: map_compare_func(state.front.compare), mask_read: state.read_mask, mask_write: state.write_mask, reference: 0, ops: map_stencil_ops(&state.front), }, back: super::StencilSide { function: map_compare_func(state.back.compare), mask_read: state.read_mask, mask_write: state.write_mask, reference: 0, ops: map_stencil_ops(&state.back), }, } } fn map_blend_factor(factor: wgt::BlendFactor) -> u32 { use wgt::BlendFactor as Bf; match factor { Bf::Zero => glow::ZERO, Bf::One => glow::ONE, Bf::Src => glow::SRC_COLOR, Bf::OneMinusSrc => glow::ONE_MINUS_SRC_COLOR, Bf::Dst => glow::DST_COLOR, Bf::OneMinusDst => glow::ONE_MINUS_DST_COLOR, Bf::SrcAlpha => glow::SRC_ALPHA, Bf::OneMinusSrcAlpha => glow::ONE_MINUS_SRC_ALPHA, Bf::DstAlpha => glow::DST_ALPHA, Bf::OneMinusDstAlpha => glow::ONE_MINUS_DST_ALPHA, Bf::Constant => glow::CONSTANT_COLOR, Bf::OneMinusConstant => glow::ONE_MINUS_CONSTANT_COLOR, Bf::SrcAlphaSaturated => glow::SRC_ALPHA_SATURATE, } } fn map_blend_component(component: &wgt::BlendComponent) -> super::BlendComponent { super::BlendComponent { src: map_blend_factor(component.src_factor), dst: map_blend_factor(component.dst_factor), equation: match component.operation { wgt::BlendOperation::Add => glow::FUNC_ADD, wgt::BlendOperation::Subtract => glow::FUNC_SUBTRACT, wgt::BlendOperation::ReverseSubtract => glow::FUNC_REVERSE_SUBTRACT, wgt::BlendOperation::Min => glow::MIN, wgt::BlendOperation::Max => glow::MAX, }, } } pub(super) fn map_blend(blend: &wgt::BlendState) -> super::BlendDesc { super::BlendDesc { color: map_blend_component(&blend.color), alpha: map_blend_component(&blend.alpha), } } pub(super) fn map_storage_access(access: wgt::StorageTextureAccess) -> u32 { match access { wgt::StorageTextureAccess::ReadOnly => glow::READ_ONLY, wgt::StorageTextureAccess::WriteOnly => glow::WRITE_ONLY, wgt::StorageTextureAccess::ReadWrite => glow::READ_WRITE, } } pub(super) fn is_sampler(glsl_uniform_type: u32) -> bool { match glsl_uniform_type { glow::INT_SAMPLER_1D | glow::INT_SAMPLER_1D_ARRAY | glow::INT_SAMPLER_2D | glow::INT_SAMPLER_2D_ARRAY | glow::INT_SAMPLER_2D_MULTISAMPLE | glow::INT_SAMPLER_2D_MULTISAMPLE_ARRAY | glow::INT_SAMPLER_2D_RECT | glow::INT_SAMPLER_3D | glow::INT_SAMPLER_CUBE | glow::INT_SAMPLER_CUBE_MAP_ARRAY | glow::UNSIGNED_INT_SAMPLER_1D | glow::UNSIGNED_INT_SAMPLER_1D_ARRAY | glow::UNSIGNED_INT_SAMPLER_2D | glow::UNSIGNED_INT_SAMPLER_2D_ARRAY | glow::UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE | glow::UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY | glow::UNSIGNED_INT_SAMPLER_2D_RECT | glow::UNSIGNED_INT_SAMPLER_3D | glow::UNSIGNED_INT_SAMPLER_CUBE | glow::UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY | glow::SAMPLER_1D | glow::SAMPLER_1D_SHADOW | glow::SAMPLER_1D_ARRAY | glow::SAMPLER_1D_ARRAY_SHADOW | glow::SAMPLER_2D | glow::SAMPLER_2D_SHADOW | glow::SAMPLER_2D_ARRAY | glow::SAMPLER_2D_ARRAY_SHADOW | glow::SAMPLER_2D_MULTISAMPLE | glow::SAMPLER_2D_MULTISAMPLE_ARRAY | glow::SAMPLER_2D_RECT | glow::SAMPLER_2D_RECT_SHADOW | glow::SAMPLER_3D | glow::SAMPLER_CUBE | glow::SAMPLER_CUBE_MAP_ARRAY | glow::SAMPLER_CUBE_MAP_ARRAY_SHADOW | glow::SAMPLER_CUBE_SHADOW => true, _ => false, } } pub(super) fn is_image(glsl_uniform_type: u32) -> bool { match glsl_uniform_type { glow::INT_IMAGE_1D | glow::INT_IMAGE_1D_ARRAY | glow::INT_IMAGE_2D | glow::INT_IMAGE_2D_ARRAY | glow::INT_IMAGE_2D_MULTISAMPLE | glow::INT_IMAGE_2D_MULTISAMPLE_ARRAY | glow::INT_IMAGE_2D_RECT | glow::INT_IMAGE_3D | glow::INT_IMAGE_CUBE | glow::INT_IMAGE_CUBE_MAP_ARRAY | glow::UNSIGNED_INT_IMAGE_1D | glow::UNSIGNED_INT_IMAGE_1D_ARRAY | glow::UNSIGNED_INT_IMAGE_2D | glow::UNSIGNED_INT_IMAGE_2D_ARRAY | glow::UNSIGNED_INT_IMAGE_2D_MULTISAMPLE | glow::UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY | glow::UNSIGNED_INT_IMAGE_2D_RECT | glow::UNSIGNED_INT_IMAGE_3D | glow::UNSIGNED_INT_IMAGE_CUBE | glow::UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY | glow::IMAGE_1D | glow::IMAGE_1D_ARRAY | glow::IMAGE_2D | glow::IMAGE_2D_ARRAY | glow::IMAGE_2D_MULTISAMPLE | glow::IMAGE_2D_MULTISAMPLE_ARRAY | glow::IMAGE_2D_RECT | glow::IMAGE_3D | glow::IMAGE_CUBE | glow::IMAGE_CUBE_MAP_ARRAY => true, _ => false, } } pub(super) fn is_atomic_counter(glsl_uniform_type: u32) -> bool { glsl_uniform_type == glow::UNSIGNED_INT_ATOMIC_COUNTER } pub(super) fn is_opaque_type(glsl_uniform_type: u32) -> bool { is_sampler(glsl_uniform_type) || is_image(glsl_uniform_type) || is_atomic_counter(glsl_uniform_type) } pub(super) fn uniform_byte_size(glsl_uniform_type: u32) -> u32 { match glsl_uniform_type { glow::FLOAT | glow::INT => 4, glow::FLOAT_VEC2 | glow::INT_VEC2 => 8, glow::FLOAT_VEC3 | glow::INT_VEC3 => 12, glow::FLOAT_VEC4 | glow::INT_VEC4 => 16, glow::FLOAT_MAT2 => 16, glow::FLOAT_MAT3 => 36, glow::FLOAT_MAT4 => 64, _ => panic!("Unsupported uniform datatype! {glsl_uniform_type:#X}"), } }