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internal/graphicscommand: Refactoring: Use type assesion instead of interface

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This was an optimization in GopherJS era. This change removes this
to simplify the implementation.
This commit is contained in:
Hajime Hoshi 2021-07-05 21:16:01 +09:00
parent b2d4521e22
commit 92b3dab33c
1 changed files with 22 additions and 147 deletions
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169
internal/graphicscommand/command.go
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@ -51,11 +51,6 @@ type command interface {
fmt.Stringer
Exec(indexOffset int) error
NumVertices() int
NumIndices() int
AddNumVertices(n int)
AddNumIndices(n int)
CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, evenOdd bool) bool
}
type size struct {
@ -167,10 +162,12 @@ func (q *commandQueue) EnqueueDrawTrianglesCommand(dst *Image, srcs [graphics.Sh
// TODO: If dst is the screen, reorder the command to be the last.
if !split && 0 < len(q.commands) {
// TODO: Pass offsets and uniforms when merging considers the shader.
if last := q.commands[len(q.commands)-1]; last.CanMergeWithDrawTrianglesCommand(dst, srcs, color, mode, filter, address, dstRegion, srcRegion, shader, evenOdd) {
last.AddNumVertices(len(vertices))
last.AddNumIndices(len(indices))
return
if last, ok := q.commands[len(q.commands)-1].(*drawTrianglesCommand); ok {
if last.CanMergeWithDrawTrianglesCommand(dst, srcs, color, mode, filter, address, dstRegion, srcRegion, shader, evenOdd) {
last.addNumVertices(len(vertices))
last.addNumIndices(len(indices))
return
}
}
}
@ -263,14 +260,16 @@ func (q *commandQueue) flush() error {
ne := 0
nc := 0
for _, c := range cs {
if c.NumIndices() > graphics.IndicesNum {
panic(fmt.Sprintf("graphicscommand: c.NumIndices() must be <= graphics.IndicesNum but not at Flush: c.NumIndices(): %d, graphics.IndicesNum: %d", c.NumIndices(), graphics.IndicesNum))
if dtc, ok := c.(*drawTrianglesCommand); ok {
if dtc.numIndices() > graphics.IndicesNum {
panic(fmt.Sprintf("graphicscommand: dtc.NumIndices() must be <= graphics.IndicesNum but not at Flush: dtc.NumIndices(): %d, graphics.IndicesNum: %d", dtc.numIndices(), graphics.IndicesNum))
}
if ne+dtc.numIndices() > graphics.IndicesNum {
break
}
nv += dtc.numVertices()
ne += dtc.numIndices()
}
if ne+c.NumIndices() > graphics.IndicesNum {
break
}
nv += c.NumVertices()
ne += c.NumIndices()
nc++
}
if 0 < ne {
@ -287,7 +286,9 @@ func (q *commandQueue) flush() error {
// TODO: indexOffset should be reset if the command type is different
// from the previous one. This fix is needed when another drawing command is
// introduced than drawTrianglesCommand.
indexOffset += c.NumIndices()
if dtc, ok := c.(*drawTrianglesCommand); ok {
indexOffset += dtc.numIndices()
}
}
cs = cs[nc:]
}
@ -433,19 +434,19 @@ func (c *drawTrianglesCommand) Exec(indexOffset int) error {
return theGraphicsDriver.DrawTriangles(c.dst.image.ID(), imgs, c.offsets, shaderID, c.nindices, indexOffset, c.mode, c.color, c.filter, c.address, c.dstRegion, c.srcRegion, c.uniforms, c.evenOdd)
}
func (c *drawTrianglesCommand) NumVertices() int {
func (c *drawTrianglesCommand) numVertices() int {
return c.nvertices
}
func (c *drawTrianglesCommand) NumIndices() int {
func (c *drawTrianglesCommand) numIndices() int {
return c.nindices
}
func (c *drawTrianglesCommand) AddNumVertices(n int) {
func (c *drawTrianglesCommand) addNumVertices(n int) {
c.nvertices += n
}
func (c *drawTrianglesCommand) AddNumIndices(n int) {
func (c *drawTrianglesCommand) addNumIndices(n int) {
c.nindices += n
}
@ -504,24 +505,6 @@ func (c *replacePixelsCommand) Exec(indexOffset int) error {
return nil
}
func (c *replacePixelsCommand) NumVertices() int {
return 0
}
func (c *replacePixelsCommand) NumIndices() int {
return 0
}
func (c *replacePixelsCommand) AddNumVertices(n int) {
}
func (c *replacePixelsCommand) AddNumIndices(n int) {
}
func (c *replacePixelsCommand) CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, evenOdd bool) bool {
return false
}
type pixelsCommand struct {
result []byte
img *Image
@ -541,24 +524,6 @@ func (c *pixelsCommand) String() string {
return fmt.Sprintf("pixels: image: %d", c.img.id)
}
func (c *pixelsCommand) NumVertices() int {
return 0
}
func (c *pixelsCommand) NumIndices() int {
return 0
}
func (c *pixelsCommand) AddNumVertices(n int) {
}
func (c *pixelsCommand) AddNumIndices(n int) {
}
func (c *pixelsCommand) CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, evenOdd bool) bool {
return false
}
// disposeImageCommand represents a command to dispose an image.
type disposeImageCommand struct {
target *Image
@ -574,24 +539,6 @@ func (c *disposeImageCommand) Exec(indexOffset int) error {
return nil
}
func (c *disposeImageCommand) NumVertices() int {
return 0
}
func (c *disposeImageCommand) NumIndices() int {
return 0
}
func (c *disposeImageCommand) AddNumVertices(n int) {
}
func (c *disposeImageCommand) AddNumIndices(n int) {
}
func (c *disposeImageCommand) CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, evenOdd bool) bool {
return false
}
// disposeShaderCommand represents a command to dispose a shader.
type disposeShaderCommand struct {
target *Shader
@ -607,24 +554,6 @@ func (c *disposeShaderCommand) Exec(indexOffset int) error {
return nil
}
func (c *disposeShaderCommand) NumVertices() int {
return 0
}
func (c *disposeShaderCommand) NumIndices() int {
return 0
}
func (c *disposeShaderCommand) AddNumVertices(n int) {
}
func (c *disposeShaderCommand) AddNumIndices(n int) {
}
func (c *disposeShaderCommand) CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, evenOdd bool) bool {
return false
}
// newImageCommand represents a command to create an empty image with given width and height.
type newImageCommand struct {
result *Image
@ -646,24 +575,6 @@ func (c *newImageCommand) Exec(indexOffset int) error {
return nil
}
func (c *newImageCommand) NumVertices() int {
return 0
}
func (c *newImageCommand) NumIndices() int {
return 0
}
func (c *newImageCommand) AddNumVertices(n int) {
}
func (c *newImageCommand) AddNumIndices(n int) {
}
func (c *newImageCommand) CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, evenOdd bool) bool {
return false
}
// newScreenFramebufferImageCommand is a command to create a special image for the screen.
type newScreenFramebufferImageCommand struct {
result *Image
@ -682,24 +593,6 @@ func (c *newScreenFramebufferImageCommand) Exec(indexOffset int) error {
return err
}
func (c *newScreenFramebufferImageCommand) NumVertices() int {
return 0
}
func (c *newScreenFramebufferImageCommand) NumIndices() int {
return 0
}
func (c *newScreenFramebufferImageCommand) AddNumVertices(n int) {
}
func (c *newScreenFramebufferImageCommand) AddNumIndices(n int) {
}
func (c *newScreenFramebufferImageCommand) CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, copmlex bool) bool {
return false
}
// newShaderCommand is a command to create a shader.
type newShaderCommand struct {
result *Shader
@ -717,24 +610,6 @@ func (c *newShaderCommand) Exec(indexOffset int) error {
return err
}
func (c *newShaderCommand) NumVertices() int {
return 0
}
func (c *newShaderCommand) NumIndices() int {
return 0
}
func (c *newShaderCommand) AddNumVertices(n int) {
}
func (c *newShaderCommand) AddNumIndices(n int) {
}
func (c *newShaderCommand) CanMergeWithDrawTrianglesCommand(dst *Image, src [graphics.ShaderImageNum]*Image, color *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, dstRegion, srcRegion driver.Region, shader *Shader, evenOdd bool) bool {
return false
}
// ResetGraphicsDriverState resets or initializes the current graphics driver state.
func ResetGraphicsDriverState() error {
return runOnMainThread(func() error {