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shaderir: Add Return

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This commit is contained in:
Hajime Hoshi 2020-05-14 03:14:39 +09:00
parent d932787e36
commit 32a88b3b03
2 changed files with 7 additions and 1 deletions
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7
internal/shaderir/glsl.go
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@ -132,6 +132,7 @@ func (p *Program) glslBlock(b *Block, f *Func, level int) []string {
case Binary:
return fmt.Sprintf("(%s) %s (%s)", glslExpr(&e.Exprs[0]), e.Op, glslExpr(&e.Exprs[1]))
case Call:
// TODO: Take multiple args
return fmt.Sprintf("(%s).(%s)", glslExpr(&e.Exprs[0]), glslExpr(&e.Exprs[1]))
case Selector:
return fmt.Sprintf("(%s).%s", glslExpr(&e.Exprs[0]), glslExpr(&e.Exprs[1]))
@ -145,7 +146,7 @@ func (p *Program) glslBlock(b *Block, f *Func, level int) []string {
for _, s := range b.Stmts {
switch s.Type {
case ExprStmt:
panic("not implemented")
lines = append(lines, fmt.Sprintf("%s%s;", idt, glslExpr(&s.Exprs[0])))
case BlockStmt:
lines = append(lines, idt+"{")
lines = append(lines, p.glslBlock(s.Block, f, level+1)...)
@ -160,6 +161,8 @@ func (p *Program) glslBlock(b *Block, f *Func, level int) []string {
lines = append(lines, idt+"continue;")
case Break:
lines = append(lines, idt+"break;")
case Return:
lines = append(lines, idt+"return;")
case Discard:
lines = append(lines, idt+"discard;")
default:
@ -169,3 +172,5 @@ func (p *Program) glslBlock(b *Block, f *Func, level int) []string {
return lines
}
// TODO: Distinguish regular functions, vertex functions and fragment functions. e.g., Treat gl_Position correctly.

1
internal/shaderir/program.go
View File

@ -64,6 +64,7 @@ const (
For
Continue
Break
Return
Discard
)