137 lines
4.1 KiB
Go
137 lines
4.1 KiB
Go
package rl
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const (
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// Texture parameters (equivalent to OpenGL defines)
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TextureWrapS = 0x2802 // GL_TEXTURE_WRAP_S
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TextureWrapT = 0x2803 // GL_TEXTURE_WRAP_T
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TextureMagFilter = 0x2800 // GL_TEXTURE_MAG_FILTER
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TextureMinFilter = 0x2801 // GL_TEXTURE_MIN_FILTER
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TextureFilterNearest = 0x2600 // GL_NEAREST
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TextureFilterLinear = 0x2601 // GL_LINEAR
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TextureFilterMipNearest = 0x2700 // GL_NEAREST_MIPMAP_NEAREST
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TextureFilterNearestMipLinear = 0x2702 // GL_NEAREST_MIPMAP_LINEAR
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TextureFilterLinearMipNearest = 0x2701 // GL_LINEAR_MIPMAP_NEAREST
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TextureFilterMipLinear = 0x2703 // GL_LINEAR_MIPMAP_LINEAR
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TextureFilterAnisotropic = 0x3000 // Anisotropic filter (custom identifier)
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TextureMipmapBiasRatio = 0x4000 // Texture mipmap bias, percentage ratio (custom identifier)
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TextureWrapRepeat = 0x2901 // GL_REPEAT
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TextureWrapClamp = 0x812F // GL_CLAMP_TO_EDGE
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TextureWrapMirrorRepeat = 0x8370 // GL_MIRRORED_REPEAT
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TextureWrapMirrorClamp = 0x8742 // GL_MIRROR_CLAMP_EXT
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// Matrix modes (equivalent to OpenGL)
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Modelview = 0x1700 // GL_MODELVIEW
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Projection = 0x1701 // GL_PROJECTION
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Texture = 0x1702 // GL_TEXTURE
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// Primitive assembly draw modes
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Lines = 0x0001 // GL_LINES
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Triangles = 0x0004 // GL_TRIANGLES
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Quads = 0x0007 // GL_QUADS
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// GL equivalent data types
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UnsignedByte = 0x1401 // GL_UNSIGNED_BYTE
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Float = 0x1406 // GL_FLOAT
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// Buffer usage hint
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StreamDraw = 0x88E0 // GL_STREAM_DRAW
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StreamRead = 0x88E1 // GL_STREAM_READ
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StreamCopy = 0x88E2 // GL_STREAM_COPY
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StaticDraw = 0x88E4 // GL_STATIC_DRAW
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StaticRead = 0x88E5 // GL_STATIC_READ
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StaticCopy = 0x88E6 // GL_STATIC_COPY
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DynamicDraw = 0x88E8 // GL_DYNAMIC_DRAW
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DynamicRead = 0x88E9 // GL_DYNAMIC_READ
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DynamicCopy = 0x88EA // GL_DYNAMIC_COPY
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// GL Shader type
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FragmentShader = 0x8B30 // GL_FRAGMENT_SHADER
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VertexShader = 0x8B31 // GL_VERTEX_SHADER
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ComputeShader = 0x91B9 // GL_COMPUTE_SHADER
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)
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// rlVertexBuffer - Dynamic vertex buffers (position + texcoords + colors + indices arrays)
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type rlVertexBuffer struct {
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elementCount int32
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vertices []float32
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texcoords []float32
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colors []uint8
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indices []uint32
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vaoId uint32
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vboId [4]uint32
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}
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// rlDrawCall - Draw call type
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// NOTE: Only texture changes register a new draw, other state-change-related elements are not
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// used at this moment (vaoId, shaderId, matrices), raylib just forces a batch draw call if any
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// of those state-change happens (this is done in core module)
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type rlDrawCall struct {
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mode int32
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vertexCount int32
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vertexAlignment int32
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textureId uint32
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}
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// rlRenderBatch type
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type rlRenderBatch struct {
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bufferCount int32
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currentBuffer int32
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vertexBuffer []rlVertexBuffer
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draws []rlDrawCall
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drawCounter int32
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currentDepth float32
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}
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// OpenGL version
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const (
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Opengl11 int32 = 1
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Opengl21 int32 = 2
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Opengl33 int32 = 3
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Opengl43 int32 = 4
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OpenglEs20 int32 = 5
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)
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type rlGlVersion = int32
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// Shader attribute data types
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const (
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ShaderAttribFloat int32 = 0
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ShaderAttribVec2 int32 = 1
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ShaderAttribVec3 int32 = 2
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ShaderAttribVec4 int32 = 3
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)
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type rlShaderAttributeDataType = int32
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// Framebuffer attachment type
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// NOTE: By default up to 8 color channels defined but it can be more
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const (
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AttachmentColorChannel0 int32 = 0
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AttachmentColorChannel1 int32 = 1
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AttachmentColorChannel2 int32 = 2
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AttachmentColorChannel3 int32 = 3
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AttachmentColorChannel4 int32 = 4
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AttachmentColorChannel5 int32 = 5
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AttachmentColorChannel6 int32 = 6
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AttachmentColorChannel7 int32 = 7
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AttachmentDepth int32 = 100
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AttachmentStencil int32 = 200
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)
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type rlFramebufferAttachType = int32
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// Framebuffer texture attachment type
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const (
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AttachmentCubemapPositiveX int32 = 0
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AttachmentCubemapNegativeX int32 = 1
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AttachmentCubemapPositiveY int32 = 2
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AttachmentCubemapNegativeY int32 = 3
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AttachmentCubemapPositiveZ int32 = 4
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AttachmentCubemapNegativeZ int32 = 5
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AttachmentTexture2d int32 = 100
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AttachmentRenderbuffer int32 = 200
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)
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type rlFramebufferAttachTextureType = int32
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