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internal/graphics: refactoring

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This commit is contained in:
Hajime Hoshi 2022-04-05 11:12:25 +09:00
parent c6e5582c56
commit 32de5ec2d0
1 changed files with 8 additions and 6 deletions
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14
internal/graphics/shader.go
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@ -101,18 +101,20 @@ func imageSrc%[1]dAt(pos vec2) vec4 {
} }
`, i, pos) `, i, pos)
} }
shaderSuffix += `
var __projectionMatrix mat4
func __vertex(position vec2, texCoord vec2, color vec4) (vec4, vec2, vec4) {
return __projectionMatrix * vec4(position, 0, 1), texCoord, color
}
`
} }
func CompileShader(src []byte) (*shaderir.Program, error) { func CompileShader(src []byte) (*shaderir.Program, error) {
var buf bytes.Buffer var buf bytes.Buffer
buf.Write(src) buf.Write(src)
buf.WriteString(shaderSuffix) buf.WriteString(shaderSuffix)
buf.WriteString(`var __projectionMatrix mat4
func __vertex(position vec2, texCoord vec2, color vec4) (vec4, vec2, vec4) {
return __projectionMatrix * vec4(position, 0, 1), texCoord, color
}
`)
fs := token.NewFileSet() fs := token.NewFileSet()
f, err := parser.ParseFile(fs, "", buf.Bytes(), parser.AllErrors) f, err := parser.ParseFile(fs, "", buf.Bytes(), parser.AllErrors)