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internal/ui: refactoring: simplify ConvertUniforms

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This commit is contained in:
Hajime Hoshi 2022-12-03 18:15:02 +09:00
parent 724516a0e0
commit 9d74784723
1 changed files with 22 additions and 36 deletions
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52
internal/ui/shader.go
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@ -18,8 +18,8 @@ import (
"fmt"
"math"
"reflect"
"strings"
"github.com/hajimehoshi/ebiten/v2/internal/graphics"
"github.com/hajimehoshi/ebiten/v2/internal/mipmap"
"github.com/hajimehoshi/ebiten/v2/internal/shaderir"
)
@ -29,8 +29,6 @@ type Shader struct {
uniformNames []string
uniformTypes []shaderir.Type
uniformNameToIndex map[string]int
uniformNameToType map[string]shaderir.Type
}
func NewShader(ir *shaderir.Program) *Shader {
@ -47,17 +45,23 @@ func (s *Shader) MarkDisposed() {
}
func (s *Shader) ConvertUniforms(uniforms map[string]any) [][]uint32 {
nameToU32s := map[string][]uint32{}
for name, v := range uniforms {
v := reflect.ValueOf(v)
idxToU32s := make([][]uint32, len(s.uniformNames))
for idx, name := range s.uniformNames[graphics.PreservedUniformVariablesCount:] {
uv, ok := uniforms[name]
if !ok {
// TODO: Panic if uniforms include an invalid name
continue
}
v := reflect.ValueOf(uv)
t := v.Type()
switch t.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
nameToU32s[name] = []uint32{uint32(v.Int())}
idxToU32s[idx] = []uint32{uint32(v.Int())}
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
nameToU32s[name] = []uint32{uint32(v.Uint())}
idxToU32s[idx] = []uint32{uint32(v.Uint())}
case reflect.Float32, reflect.Float64:
nameToU32s[name] = []uint32{math.Float32bits(float32(v.Float()))}
idxToU32s[idx] = []uint32{math.Float32bits(float32(v.Float()))}
case reflect.Slice, reflect.Array:
u32s := make([]uint32, v.Len())
switch t.Elem().Kind() {
@ -76,38 +80,20 @@ func (s *Shader) ConvertUniforms(uniforms map[string]any) [][]uint32 {
default:
panic(fmt.Sprintf("ebiten: unexpected uniform value type: %s (%s)", name, v.Kind().String()))
}
nameToU32s[name] = u32s
idxToU32s[idx] = u32s
default:
panic(fmt.Sprintf("ebiten: unexpected uniform value type: %s (%s)", name, v.Kind().String()))
}
}
if s.uniformNameToIndex == nil {
s.uniformNameToIndex = map[string]int{}
s.uniformNameToType = map[string]shaderir.Type{}
var idx int
for i, n := range s.uniformNames {
if strings.HasPrefix(n, "__") {
continue
us := make([][]uint32, len(s.uniformTypes)-graphics.PreservedUniformVariablesCount)
for idx, typ := range s.uniformTypes[graphics.PreservedUniformVariablesCount:] {
v := idxToU32s[idx]
if v == nil {
v = make([]uint32, typ.Uint32Count())
}
s.uniformNameToIndex[n] = idx
s.uniformNameToType[n] = s.uniformTypes[i]
idx++
}
}
us := make([][]uint32, len(s.uniformNameToIndex))
for name, idx := range s.uniformNameToIndex {
if v, ok := nameToU32s[name]; ok {
us[idx] = v
continue
}
t := s.uniformNameToType[name]
us[idx] = make([]uint32, t.Uint32Count())
}
// TODO: Panic if uniforms include an invalid name
return us
}