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annotate src/zamikongine/glsl_helpers.nim @ 493:680c4b8ca28a

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add: working implementation of uniforms
author Sam <sam@basx.dev>
date Sat, 14 Jan 2023 23:34:50 +0700
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493
680c4b8ca28a add: working implementation of uniforms
Sam <sam@basx.dev>
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1 import ./math/vector
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2 import ./math/matrix
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3
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4 func getGLSLType*[T](): string =
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5 # todo: likely not correct as we would need to enable some
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6 # extensions somewhere (Vulkan/GLSL compiler?) to have
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7 # everything work as intended. Or maybe the GPU driver does
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8 # some automagic conversion stuf..
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9 when T is uint8: "uint"
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10 elif T is int8: "int"
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11 elif T is uint16: "uint"
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12 elif T is int16: "int"
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13 elif T is uint32: "uint"
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14 elif T is int32: "int"
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15 elif T is uint64: "uint"
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16 elif T is int64: "int"
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17 elif T is float32: "float"
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18 elif T is float64: "double"
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19
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20 elif T is Vec2[uint8]: "uvec2"
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21 elif T is Vec2[int8]: "ivec2"
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22 elif T is Vec2[uint16]: "uvec2"
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23 elif T is Vec2[int16]: "ivec2"
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24 elif T is Vec2[uint32]: "uvec2"
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25 elif T is Vec2[int32]: "ivec2"
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26 elif T is Vec2[uint64]: "uvec2"
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27 elif T is Vec2[int64]: "ivec2"
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28 elif T is Vec2[float32]: "vec2"
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29 elif T is Vec2[float64]: "dvec2"
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30
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31 elif T is Vec3[uint8]: "uvec3"
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32 elif T is Vec3[int8]: "ivec3"
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33 elif T is Vec3[uint16]: "uvec3"
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34 elif T is Vec3[int16]: "ivec3"
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35 elif T is Vec3[uint32]: "uvec3"
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36 elif T is Vec3[int32]: "ivec3"
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37 elif T is Vec3[uint64]: "uvec3"
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38 elif T is Vec3[int64]: "ivec3"
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39 elif T is Vec3[float32]: "vec3"
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40 elif T is Vec3[float64]: "dvec3"
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41
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42 elif T is Vec4[uint8]: "uvec4"
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43 elif T is Vec4[int8]: "ivec4"
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44 elif T is Vec4[uint16]: "uvec4"
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45 elif T is Vec4[int16]: "ivec4"
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46 elif T is Vec4[uint32]: "uvec4"
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47 elif T is Vec4[int32]: "ivec4"
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48 elif T is Vec4[uint64]: "uvec4"
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49 elif T is Vec4[int64]: "ivec4"
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50 elif T is Vec4[float32]: "vec4"
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51 elif T is Vec4[float64]: "dvec4"
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52
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53 elif T is Mat22[float32]: "mat2"
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54 elif T is Mat23[float32]: "mat32"
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55 elif T is Mat32[float32]: "mat23"
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56 elif T is Mat33[float32]: "mat3"
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57 elif T is Mat34[float32]: "mat43"
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58 elif T is Mat43[float32]: "mat34"
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59 elif T is Mat44[float32]: "mat4"
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60
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61 elif T is Mat22[float64]: "dmat2"
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62 elif T is Mat23[float64]: "dmat32"
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63 elif T is Mat32[float64]: "dmat23"
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64 elif T is Mat33[float64]: "dmat3"
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65 elif T is Mat34[float64]: "dmat43"
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66 elif T is Mat43[float64]: "dmat34"
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67 elif T is Mat44[float64]: "dmat4"