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Diffstat (limited to 'vendor/gioui.org/gpu/backend/backend.go')
| -rw-r--r-- | vendor/gioui.org/gpu/backend/backend.go | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/vendor/gioui.org/gpu/backend/backend.go b/vendor/gioui.org/gpu/backend/backend.go deleted file mode 100644 index 871eea4..0000000 --- a/vendor/gioui.org/gpu/backend/backend.go +++ /dev/null @@ -1,204 +0,0 @@ -// SPDX-License-Identifier: Unlicense OR MIT - -package backend - -import ( - "image" - "time" -) - -// Device represents the abstraction of underlying GPU -// APIs such as OpenGL, Direct3D useful for rendering Gio -// operations. -type Device interface { - BeginFrame() - EndFrame() - Caps() Caps - NewTimer() Timer - // IsContinuousTime reports whether all timer measurements - // are valid at the point of call. - IsTimeContinuous() bool - NewTexture(format TextureFormat, width, height int, minFilter, magFilter TextureFilter, bindings BufferBinding) (Texture, error) - CurrentFramebuffer() Framebuffer - NewFramebuffer(tex Texture, depthBits int) (Framebuffer, error) - NewImmutableBuffer(typ BufferBinding, data []byte) (Buffer, error) - NewBuffer(typ BufferBinding, size int) (Buffer, error) - NewProgram(vertexShader, fragmentShader ShaderSources) (Program, error) - NewInputLayout(vertexShader ShaderSources, layout []InputDesc) (InputLayout, error) - - DepthFunc(f DepthFunc) - ClearDepth(d float32) - Clear(r, g, b, a float32) - Viewport(x, y, width, height int) - DrawArrays(mode DrawMode, off, count int) - DrawElements(mode DrawMode, off, count int) - SetBlend(enable bool) - SetDepthTest(enable bool) - DepthMask(mask bool) - BlendFunc(sfactor, dfactor BlendFactor) - - BindInputLayout(i InputLayout) - BindProgram(p Program) - BindFramebuffer(f Framebuffer) - BindTexture(unit int, t Texture) - BindVertexBuffer(b Buffer, stride, offset int) - BindIndexBuffer(b Buffer) -} - -type ShaderSources struct { - GLSL100ES string - GLSL300ES string - GLSL130 string - GLSL150 string - HLSL []byte - Uniforms UniformsReflection - Inputs []InputLocation - Textures []TextureBinding -} - -type UniformsReflection struct { - Blocks []UniformBlock - Locations []UniformLocation - Size int -} - -type TextureBinding struct { - Name string - Binding int -} - -type UniformBlock struct { - Name string - Binding int -} - -type UniformLocation struct { - Name string - Type DataType - Size int - Offset int -} - -type InputLocation struct { - // For GLSL. - Name string - Location int - // For HLSL. - Semantic string - SemanticIndex int - - Type DataType - Size int -} - -// InputDesc describes a vertex attribute as laid out in a Buffer. -type InputDesc struct { - Type DataType - Size int - - Offset int -} - -// InputLayout is the backend specific representation of the mapping -// between Buffers and shader attributes. -type InputLayout interface { - Release() -} - -type BlendFactor uint8 - -type DrawMode uint8 - -type TextureFilter uint8 -type TextureFormat uint8 - -type BufferBinding uint8 - -type DataType uint8 - -type DepthFunc uint8 - -type Features uint - -type Caps struct { - Features Features - MaxTextureSize int -} - -type Program interface { - Release() - SetVertexUniforms(buf Buffer) - SetFragmentUniforms(buf Buffer) -} - -type Buffer interface { - Release() - Upload(data []byte) -} - -type Framebuffer interface { - Invalidate() - Release() - ReadPixels(src image.Rectangle, pixels []byte) error -} - -type Timer interface { - Begin() - End() - Duration() (time.Duration, bool) - Release() -} - -type Texture interface { - Upload(img *image.RGBA) - Release() -} - -const ( - DepthFuncGreater DepthFunc = iota - DepthFuncGreaterEqual -) - -const ( - DataTypeFloat DataType = iota - DataTypeInt - DataTypeShort -) - -const ( - BufferBindingIndices BufferBinding = 1 << iota - BufferBindingVertices - BufferBindingUniforms - BufferBindingTexture - BufferBindingFramebuffer -) - -const ( - TextureFormatSRGB TextureFormat = iota - TextureFormatFloat -) - -const ( - FilterNearest TextureFilter = iota - FilterLinear -) - -const ( - FeatureTimers Features = iota -) - -const ( - DrawModeTriangleStrip DrawMode = iota - DrawModeTriangles -) - -const ( - BlendFactorOne BlendFactor = iota - BlendFactorOneMinusSrcAlpha - BlendFactorZero - BlendFactorDstColor -) - -func (f Features) Has(feats Features) bool { - return f&feats == feats -} |