type cleanup

formats/dc6/dc6.go

@@ -4,6 +4,7 @@ import (
 	"encoding/binary"
 	"io"
 
+	"github.com/FooSoft/lazarus/math"
 	"github.com/FooSoft/lazarus/streaming"
 )
 
@@ -32,10 +33,8 @@ type Direction struct {
 }
 
 type Frame struct {
-	Width   int
+	Size   math.Vec2i
-	Height  int
+	Offset math.Vec2i
-	OffsetX int
-	OffsetY int
 	Data   []byte
 }
 
@@ -79,15 +78,13 @@ func NewFromReader(reader io.ReadSeeker) (*Sprite, error) {
 			return nil, err
 		}
 
-		frame := Frame{
+		var (
-			int(frameHead.Width),
+			size      = math.Vec2i{X: int(frameHead.Width), Y: int(frameHead.Height)}
-			int(frameHead.Height),
+			offset    = math.Vec2i{X: int(frameHead.OffsetX), Y: int(frameHead.OffsetY)}
-			int(frameHead.OffsetX),
+			frame     = Frame{size, offset, data}
-			int(frameHead.OffsetY),
+			direction = &sprite.Directions[i/int(fileHead.FramesPerDir)]
-			data,
+		)
-		}
 
-		direction := &sprite.Directions[i/int(fileHead.FramesPerDir)]
 		direction.Frames = append(direction.Frames, frame)
 	}
 

math/math.go

@@ -16,3 +16,10 @@ type Rect4i struct {
 	W int
 	H int
 }
+
+type Color4b struct {
+	R byte
+	G byte
+	B byte
+	A byte
+}

platform/texture.go

@@ -10,27 +10,27 @@ import (
 
 type Texture struct {
 	size      math.Vec2i
-	glHandle uint32
+	glTexture uint32
 }
 
-func newTextureFromRgba(colors []color.RGBA, width, height int) (*Texture, error) {
+func newTextureFromRgba(colors []color.RGBA, size math.Vec2i) (*Texture, error) {
-	var glHandleLast int32
+	var glLastTexture int32
-	gl.GetIntegerv(gl.TEXTURE_BINDING_2D, &glHandleLast)
+	gl.GetIntegerv(gl.TEXTURE_BINDING_2D, &glLastTexture)
 
-	var glHandle uint32
+	var glTexture uint32
-	gl.GenTextures(1, &glHandle)
+	gl.GenTextures(1, &glTexture)
-	gl.BindTexture(gl.TEXTURE_2D, glHandle)
+	gl.BindTexture(gl.TEXTURE_2D, glTexture)
 	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
 	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
 	gl.PixelStorei(gl.UNPACK_ROW_LENGTH, 0)
-	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, int32(width), int32(height), 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&colors[0]))
+	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, int32(size.X), int32(size.Y), 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&colors[0]))
 
-	gl.BindTexture(gl.TEXTURE_2D, uint32(glHandleLast))
+	gl.BindTexture(gl.TEXTURE_2D, uint32(glLastTexture))
-	return &Texture{size: math.Vec2i{X: width, Y: height}, glHandle: glHandle}, nil
+	return &Texture{size, glTexture}, nil
 }
 
 func (t *Texture) Handle() Handle {
-	return Handle(t.glHandle)
+	return Handle(t.glTexture)
 }
 
 func (t *Texture) Size() math.Vec2i {
@@ -38,10 +38,12 @@ func (t *Texture) Size() math.Vec2i {
 }
 
 func (t *Texture) Destroy() error {
-	if t.glHandle != 0 {
+	if t == nil || t.glTexture == 0 {
-		gl.DeleteTextures(1, &t.glHandle)
+		return nil
-		t.glHandle = 0
 	}
 
+	gl.DeleteTextures(1, &t.glTexture)
+	t.glTexture = 0
+
 	return nil
 }

platform/window.go

@@ -69,8 +69,8 @@ func (w *Window) Destroy() error {
 	return nil
 }
 
-func (w *Window) CreateTextureRgba(colors []color.RGBA, width, height int) (*Texture, error) {
+func (w *Window) CreateTextureRgba(colors []color.RGBA, size math.Vec2i) (*Texture, error) {
-	return newTextureFromRgba(colors, width, height)
+	return newTextureFromRgba(colors, size)
 }
 
 func (w *Window) RenderTexture(texture *Texture, position math.Vec2i) {

tools/viewer/main.go

@@ -74,8 +74,8 @@ func (s *scene) Advance(window *platform.Window) error {
 	}
 	frame := direction.Frames[frameIndex]
 	imgui.SliderInt("Frame", &frameIndex, 0, int32(len(direction.Frames))-1)
-	imgui.Text(fmt.Sprintf("Size: %dx%d", frame.Width, frame.Height))
+	imgui.Text(fmt.Sprintf("Size: %+v", frame.Size))
-	imgui.Text(fmt.Sprintf("Offset: %dx%d", frame.OffsetX, frame.OffsetY))
+	imgui.Text(fmt.Sprintf("Offset: %+v", frame.Offset))
 
 	if directionIndex != s.directionIndex || frameIndex != s.frameIndex {
 		s.directionIndex = directionIndex
@@ -89,10 +89,10 @@ func (s *scene) Advance(window *platform.Window) error {
 
 func (s *scene) updateTexture(window *platform.Window) error {
 	frame := s.sprite.Directions[s.directionIndex].Frames[s.frameIndex]
-	colors := make([]color.RGBA, frame.Width*frame.Height)
+	colors := make([]color.RGBA, frame.Size.X*frame.Size.Y)
-	for y := 0; y < frame.Height; y++ {
+	for y := 0; y < frame.Size.Y; y++ {
-		for x := 0; x < frame.Width; x++ {
+		for x := 0; x < frame.Size.X; x++ {
-			colors[y*frame.Width+x] = s.palette.Colors[frame.Data[y*frame.Width+x]]
+			colors[y*frame.Size.X+x] = s.palette.Colors[frame.Data[y*frame.Size.X+x]]
 		}
 	}
 
@@ -103,7 +103,7 @@ func (s *scene) updateTexture(window *platform.Window) error {
 	}
 
 	var err error
-	s.texture, err = window.CreateTextureRgba(colors, frame.Width, frame.Height)
+	s.texture, err = window.CreateTextureRgba(colors, frame.Size)
 	if err != nil {
 		return err
 	}