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graphics: Rename elements -> indices

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This commit is contained in:
Hajime Hoshi 2018-06-10 17:06:40 +09:00
parent 8a268e871f
commit 4e21bfd005
1 changed files with 43 additions and 43 deletions
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84
internal/graphics/command.go
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@ -31,9 +31,9 @@ import (
type command interface {
Exec(indexOffsetInBytes int) error
NumVertices() int
NumElements() int
NumIndices() int
AddNumVertices(n int)
AddNumElements(n int)
AddNumIndices(n int)
CanMerge(dst, src *Image, color *affine.ColorM, mode opengl.CompositeMode, filter Filter) bool
}
@ -50,10 +50,10 @@ type commandQueue struct {
// vertices is never shrunk since re-extending a vertices buffer is heavy.
nvertices int
elements []uint16
nelements int
indices []uint16
nindices int
tmpNumElements int
tmpNumIndices int
nextIndex int
}
@ -74,25 +74,25 @@ func (q *commandQueue) appendVertices(vertices []float32) {
q.nvertices += len(vertices)
}
func (q *commandQueue) appendElements(indices []uint16, offset uint16) {
if len(q.elements) < q.nelements+len(indices) {
n := q.nelements + len(indices) - len(q.elements)
q.elements = append(q.elements, make([]uint16, n)...)
func (q *commandQueue) appendIndices(indices []uint16, offset uint16) {
if len(q.indices) < q.nindices+len(indices) {
n := q.nindices + len(indices) - len(q.indices)
q.indices = append(q.indices, make([]uint16, n)...)
}
for i := range indices {
q.elements[q.nelements+i] = indices[i] + offset
q.indices[q.nindices+i] = indices[i] + offset
}
q.nelements += len(indices)
q.nindices += len(indices)
}
func (q *commandQueue) doEnqueueDrawImageCommand(dst, src *Image, nvertices, nelements int, color *affine.ColorM, mode opengl.CompositeMode, filter Filter, forceNewCommand bool) {
if nelements > indicesNum {
panic("not implemented for too many elements")
func (q *commandQueue) doEnqueueDrawImageCommand(dst, src *Image, nvertices, nindices int, color *affine.ColorM, mode opengl.CompositeMode, filter Filter, forceNewCommand bool) {
if nindices > indicesNum {
panic("not implemented for too many indices")
}
if !forceNewCommand && 0 < len(q.commands) {
if last := q.commands[len(q.commands)-1]; last.CanMerge(dst, src, color, mode, filter) {
last.AddNumVertices(nvertices)
last.AddNumElements(nelements)
last.AddNumIndices(nindices)
return
}
}
@ -100,7 +100,7 @@ func (q *commandQueue) doEnqueueDrawImageCommand(dst, src *Image, nvertices, nel
dst: dst,
src: src,
nvertices: nvertices,
nelements: nelements,
nindices: nindices,
color: color,
mode: mode,
filter: filter,
@ -115,16 +115,16 @@ func (q *commandQueue) EnqueueDrawImageCommand(dst, src *Image, vertices []float
}
split := false
if q.tmpNumElements+len(indices) > indicesNum {
q.tmpNumElements = 0
if q.tmpNumIndices+len(indices) > indicesNum {
q.tmpNumIndices = 0
q.nextIndex = 0
split = true
}
q.appendVertices(vertices)
q.appendElements(indices, uint16(q.nextIndex))
q.appendIndices(indices, uint16(q.nextIndex))
q.nextIndex += len(vertices) * opengl.Float.SizeInBytes() / theArrayBufferLayout.totalBytes()
q.tmpNumElements += len(indices)
q.tmpNumIndices += len(indices)
q.doEnqueueDrawImageCommand(dst, src, len(vertices), len(indices), color, mode, filter, split)
}
@ -140,21 +140,21 @@ func (q *commandQueue) Enqueue(command command) {
func (q *commandQueue) Flush() error {
// glViewport must be called at least at every frame on iOS.
opengl.GetContext().ResetViewportSize()
es := q.elements
es := q.indices
vs := q.vertices
for len(q.commands) > 0 {
nv := 0
ne := 0
nc := 0
for _, c := range q.commands {
if c.NumElements() > indicesNum {
if c.NumIndices() > indicesNum {
panic("not reached")
}
if ne+c.NumElements() > indicesNum {
if ne+c.NumIndices() > indicesNum {
break
}
nv += c.NumVertices()
ne += c.NumElements()
ne += c.NumIndices()
nc++
}
if 0 < ne {
@ -174,7 +174,7 @@ func (q *commandQueue) Flush() error {
// TODO: indexOffsetInBytes should be reset if the command type is different
// from the previous one. This fix is needed when another drawing command is
// introduced than drawImageCommand.
indexOffsetInBytes += c.NumElements() * 2 // 2 is uint16 size in bytes
indexOffsetInBytes += c.NumIndices() * 2 // 2 is uint16 size in bytes
}
if 0 < nc {
// Call glFlush to prevent black flicking (especially on Android (#226) and iOS).
@ -184,8 +184,8 @@ func (q *commandQueue) Flush() error {
}
q.commands = nil
q.nvertices = 0
q.nelements = 0
q.tmpNumElements = 0
q.nindices = 0
q.tmpNumIndices = 0
q.nextIndex = 0
return nil
}
@ -200,7 +200,7 @@ type drawImageCommand struct {
dst *Image
src *Image
nvertices int
nelements int
nindices int
color *affine.ColorM
mode opengl.CompositeMode
filter Filter
@ -221,12 +221,12 @@ func (c *drawImageCommand) Exec(indexOffsetInBytes int) error {
opengl.GetContext().BlendFunc(c.mode)
if c.nelements == 0 {
if c.nindices == 0 {
return nil
}
proj := f.projectionMatrix()
theOpenGLState.useProgram(proj, c.src.texture.native, c.dst, c.src, c.color, c.filter)
opengl.GetContext().DrawElements(opengl.Triangles, c.nelements, indexOffsetInBytes)
opengl.GetContext().DrawElements(opengl.Triangles, c.nindices, indexOffsetInBytes)
// glFlush() might be necessary at least on MacBook Pro (a smilar problem at #419),
// but basically this pass the tests (esp. TestImageTooManyFill).
@ -239,16 +239,16 @@ func (c *drawImageCommand) NumVertices() int {
return c.nvertices
}
func (c *drawImageCommand) NumElements() int {
return c.nelements
func (c *drawImageCommand) NumIndices() int {
return c.nindices
}
func (c *drawImageCommand) AddNumVertices(n int) {
c.nvertices += n
}
func (c *drawImageCommand) AddNumElements(n int) {
c.nelements += n
func (c *drawImageCommand) AddNumIndices(n int) {
c.nindices += n
}
// CanMerge returns a boolean value indicating whether the other drawImageCommand can be merged
@ -296,14 +296,14 @@ func (c *replacePixelsCommand) NumVertices() int {
return 0
}
func (c *replacePixelsCommand) NumElements() int {
func (c *replacePixelsCommand) NumIndices() int {
return 0
}
func (c *replacePixelsCommand) AddNumVertices(n int) {
}
func (c *replacePixelsCommand) AddNumElements(n int) {
func (c *replacePixelsCommand) AddNumIndices(n int) {
}
func (c *replacePixelsCommand) CanMerge(dst, src *Image, color *affine.ColorM, mode opengl.CompositeMode, filter Filter) bool {
@ -331,14 +331,14 @@ func (c *disposeCommand) NumVertices() int {
return 0
}
func (c *disposeCommand) NumElements() int {
func (c *disposeCommand) NumIndices() int {
return 0
}
func (c *disposeCommand) AddNumVertices(n int) {
}
func (c *disposeCommand) AddNumElements(n int) {
func (c *disposeCommand) AddNumIndices(n int) {
}
func (c *disposeCommand) CanMerge(dst, src *Image, color *affine.ColorM, mode opengl.CompositeMode, filter Filter) bool {
@ -387,14 +387,14 @@ func (c *newImageCommand) NumVertices() int {
return 0
}
func (c *newImageCommand) NumElements() int {
func (c *newImageCommand) NumIndices() int {
return 0
}
func (c *newImageCommand) AddNumVertices(n int) {
}
func (c *newImageCommand) AddNumElements(n int) {
func (c *newImageCommand) AddNumIndices(n int) {
}
func (c *newImageCommand) CanMerge(dst, src *Image, color *affine.ColorM, mode opengl.CompositeMode, filter Filter) bool {
@ -422,14 +422,14 @@ func (c *newScreenFramebufferImageCommand) NumVertices() int {
return 0
}
func (c *newScreenFramebufferImageCommand) NumElements() int {
func (c *newScreenFramebufferImageCommand) NumIndices() int {
return 0
}
func (c *newScreenFramebufferImageCommand) AddNumVertices(n int) {
}
func (c *newScreenFramebufferImageCommand) AddNumElements(n int) {
func (c *newScreenFramebufferImageCommand) AddNumIndices(n int) {
}
func (c *newScreenFramebufferImageCommand) CanMerge(dst, src *Image, color *affine.ColorM, mode opengl.CompositeMode, filter Filter) bool {