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testing: Refactoring

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This commit is contained in:
Hajime Hoshi 2020-05-24 22:15:50 +09:00
parent 155c63ec76
commit fc50f9b0be
1 changed files with 59 additions and 47 deletions
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88
internal/testing/shader.go
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@ -18,8 +18,8 @@ import (
"github.com/hajimehoshi/ebiten/internal/shaderir"
)
func ShaderProgramFill(r, g, b, a byte) shaderir.Program {
mat := shaderir.Expr{
var (
projectionMatrix = shaderir.Expr{
Type: shaderir.Call,
Exprs: []shaderir.Expr{
{
@ -130,7 +130,7 @@ func ShaderProgramFill(r, g, b, a byte) shaderir.Program {
},
},
}
pos := shaderir.Expr{
vertexPosition = shaderir.Expr{
Type: shaderir.Call,
Exprs: []shaderir.Expr{
{
@ -151,6 +151,49 @@ func ShaderProgramFill(r, g, b, a byte) shaderir.Program {
},
},
}
defaultVertexFunc = shaderir.VertexFunc{
Block: shaderir.Block{
Stmts: []shaderir.Stmt{
{
Type: shaderir.Assign,
Exprs: []shaderir.Expr{
{
Type: shaderir.LocalVariable,
Index: 4,
},
{
Type: shaderir.Binary,
Op: shaderir.Mul,
Exprs: []shaderir.Expr{
projectionMatrix,
vertexPosition,
},
},
},
},
},
},
}
defaultProgram = shaderir.Program{
Uniforms: []shaderir.Type{
{Main: shaderir.Vec2},
},
Attributes: []shaderir.Type{
{Main: shaderir.Vec2},
{Main: shaderir.Vec2},
{Main: shaderir.Vec4},
{Main: shaderir.Vec4},
},
VertexFunc: defaultVertexFunc,
}
)
// ShaderProgramFill returns a shader intermediate representation to fill the frambuffer.
//
// Uniform variables:
//
// 0. the framebuffer size (vec2)
func ShaderProgramFill(r, g, b, a byte) shaderir.Program {
clr := shaderir.Expr{
Type: shaderir.Call,
Exprs: []shaderir.Expr{
@ -177,40 +220,8 @@ func ShaderProgramFill(r, g, b, a byte) shaderir.Program {
},
}
return shaderir.Program{
Uniforms: []shaderir.Type{
{Main: shaderir.Vec2},
},
Attributes: []shaderir.Type{
{Main: shaderir.Vec2},
{Main: shaderir.Vec2},
{Main: shaderir.Vec4},
{Main: shaderir.Vec4},
},
VertexFunc: shaderir.VertexFunc{
Block: shaderir.Block{
Stmts: []shaderir.Stmt{
{
Type: shaderir.Assign,
Exprs: []shaderir.Expr{
{
Type: shaderir.LocalVariable,
Index: 4,
},
{
Type: shaderir.Binary,
Op: shaderir.Mul,
Exprs: []shaderir.Expr{
mat,
pos,
},
},
},
},
},
},
},
FragmentFunc: shaderir.FragmentFunc{
p := defaultProgram
p.FragmentFunc = shaderir.FragmentFunc{
Block: shaderir.Block{
Stmts: []shaderir.Stmt{
{
@ -225,6 +236,7 @@ func ShaderProgramFill(r, g, b, a byte) shaderir.Program {
},
},
},
},
}
return p
}