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graphics: Remove commandQueue's member indexOffsetInBytes

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This commit is contained in:
Hajime Hoshi 2016-07-16 04:17:44 +09:00
parent 7a96f31b1f
commit d00eb131f4
1 changed files with 16 additions and 15 deletions
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27
internal/graphics/command.go
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@ -40,12 +40,11 @@ type Matrix interface {
}
type command interface {
Exec(context *opengl.Context) error
Exec(context *opengl.Context, indexOffsetInBytes int) error
}
type commandQueue struct {
commands []command
indexOffsetInBytes int
m sync.Mutex
}
@ -64,7 +63,6 @@ func (q *commandQueue) Flush(context *opengl.Context) error {
defer q.m.Unlock()
// glViewport must be called at least at every frame on iOS.
context.ResetViewportSize()
q.indexOffsetInBytes = 0
vertices := []int16{}
for _, c := range q.commands {
switch c := c.(type) {
@ -81,10 +79,14 @@ func (q *commandQueue) Flush(context *opengl.Context) error {
return errors.New(fmt.Sprintf("len(quads) must be equal to or less than %d", maxQuads))
}
numc := len(q.commands)
indexOffsetInBytes := 0
for _, c := range q.commands {
if err := c.Exec(context); err != nil {
if err := c.Exec(context, indexOffsetInBytes); err != nil {
return err
}
if c, ok := c.(*drawImageCommand); ok {
indexOffsetInBytes += 6 * len(c.vertices) / 16 * 2
}
}
q.commands = []command{}
if 0 < numc {
@ -103,7 +105,7 @@ type fillCommand struct {
color color.Color
}
func (c *fillCommand) Exec(context *opengl.Context) error {
func (c *fillCommand) Exec(context *opengl.Context, indexOffsetInBytes int) error {
if err := c.dst.framebuffer.setAsViewport(context); err != nil {
return err
}
@ -125,7 +127,7 @@ type drawImageCommand struct {
mode opengl.CompositeMode
}
func (c *drawImageCommand) Exec(context *opengl.Context) error {
func (c *drawImageCommand) Exec(context *opengl.Context, indexOffsetInBytes int) error {
if err := c.dst.framebuffer.setAsViewport(context); err != nil {
return err
}
@ -150,8 +152,7 @@ func (c *drawImageCommand) Exec(context *opengl.Context) error {
defer p.end()
// TODO: We should call glBindBuffer here?
// The buffer is already bound at begin() but it is counterintuitive.
context.DrawElements(opengl.Triangles, 6*n, theCommandQueue.indexOffsetInBytes)
theCommandQueue.indexOffsetInBytes += 6 * n * 2
context.DrawElements(opengl.Triangles, 6*n, indexOffsetInBytes)
return nil
}
@ -160,7 +161,7 @@ type replacePixelsCommand struct {
pixels []uint8
}
func (c *replacePixelsCommand) Exec(context *opengl.Context) error {
func (c *replacePixelsCommand) Exec(context *opengl.Context, indexOffsetInBytes int) error {
if err := c.dst.framebuffer.setAsViewport(context); err != nil {
return err
}
@ -184,7 +185,7 @@ type disposeCommand struct {
target *Image
}
func (c *disposeCommand) Exec(context *opengl.Context) error {
func (c *disposeCommand) Exec(context *opengl.Context, indexOffsetInBytes int) error {
if c.target.framebuffer != nil {
context.DeleteFramebuffer(c.target.framebuffer.native)
}
@ -222,7 +223,7 @@ func adjustImageForTexture(img *image.RGBA) *image.RGBA {
return adjustedImage
}
func (c *newImageFromImageCommand) Exec(context *opengl.Context) error {
func (c *newImageFromImageCommand) Exec(context *opengl.Context, indexOffsetInBytes int) error {
origSize := c.img.Bounds().Size()
if origSize.X < 4 {
return errors.New("graphics: width must be equal or more than 4.")
@ -253,7 +254,7 @@ type newImageCommand struct {
filter opengl.Filter
}
func (c *newImageCommand) Exec(context *opengl.Context) error {
func (c *newImageCommand) Exec(context *opengl.Context, indexOffsetInBytes int) error {
w := int(NextPowerOf2Int32(int32(c.width)))
h := int(NextPowerOf2Int32(int32(c.height)))
if w < 4 {
@ -282,7 +283,7 @@ type newScreenFramebufferImageCommand struct {
height int
}
func (c *newScreenFramebufferImageCommand) Exec(context *opengl.Context) error {
func (c *newScreenFramebufferImageCommand) Exec(context *opengl.Context, indexOffsetInBytes int) error {
if c.width < 4 {
return errors.New("graphics: width must be equal or more than 4.")
}