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restorable: Specify indices from restorable package

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This commit is contained in:
Hajime Hoshi 2018-06-10 18:17:58 +09:00
parent 2853895e6b
commit c782380a1c
3 changed files with 10 additions and 26 deletions
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2
internal/graphics/command.go
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@ -126,7 +126,7 @@ func (q *commandQueue) EnqueueDrawImageCommand(dst, src *Image, vertices []float
q.appendVertices(vertices)
q.appendIndices(indices, uint16(q.nextIndex))
q.nextIndex += len(vertices) * opengl.Float.SizeInBytes() / theArrayBufferLayout.totalBytes()
q.nextIndex += len(vertices) * opengl.Float.SizeInBytes() / VertexSizeInBytes()
q.tmpNumIndices += len(indices)
q.doEnqueueDrawImageCommand(dst, src, len(vertices), len(indices), color, mode, filter, split)

22
internal/graphics/image.go
View File

@ -86,28 +86,8 @@ func (i *Image) Size() (int, int) {
return i.width, i.height
}
func (i *Image) DrawImage(src *Image, vertices []float32, clr *affine.ColorM, mode opengl.CompositeMode, filter Filter) {
for len(vertices) > 0 {
var next []float32
nq := len(vertices) * opengl.Float.SizeInBytes() / VertexSizeInBytes() / 4
if nq > maxQuads {
nq = maxQuads
i := 4 * nq * VertexSizeInBytes() / opengl.Float.SizeInBytes()
next = vertices[i:]
vertices = vertices[:i]
}
indices := make([]uint16, 6*nq)
for i := 0; i < nq; i++ {
indices[6*i+0] = uint16(4*i + 0)
indices[6*i+1] = uint16(4*i + 1)
indices[6*i+2] = uint16(4*i + 2)
indices[6*i+3] = uint16(4*i + 1)
indices[6*i+4] = uint16(4*i + 2)
indices[6*i+5] = uint16(4*i + 3)
}
func (i *Image) DrawImage(src *Image, vertices []float32, indices []uint16, clr *affine.ColorM, mode opengl.CompositeMode, filter Filter) {
theCommandQueue.EnqueueDrawImageCommand(i, src, vertices, indices, clr, mode, filter)
vertices = next
}
}
func (i *Image) Pixels() ([]byte, error) {

10
internal/restorable/image.go
View File

@ -134,6 +134,10 @@ func (i *Image) makeStale() {
// the former image can be restored from the latest state of the latter image.
}
var (
quadIndices = []uint16{0, 1, 2, 1, 2, 3}
)
// ReplacePixels replaces the image pixels with the given pixels slice.
//
// If pixels is nil, ReplacePixels clears the specified reagion.
@ -162,7 +166,7 @@ func (i *Image) ReplacePixels(pixels []byte, x, y, width, height int) {
geom = geom.Translate(float64(x), float64(y))
colorm := (*affine.ColorM)(nil).Scale(0, 0, 0, 0)
vs := vertices(w, h, 0, 0, w, h, geom)
i.image.DrawImage(dummyImage.image, vs, colorm, opengl.CompositeModeCopy, graphics.FilterNearest)
i.image.DrawImage(dummyImage.image, vs, quadIndices, colorm, opengl.CompositeModeCopy, graphics.FilterNearest)
}
if x == 0 && y == 0 && width == w && height == h {
@ -212,7 +216,7 @@ func (i *Image) DrawImage(img *Image, sx0, sy0, sx1, sy1 int, geom *affine.GeoM,
} else {
i.appendDrawImageHistory(img, vs, colorm, mode, filter)
}
i.image.DrawImage(img.image, vs, colorm, mode, filter)
i.image.DrawImage(img.image, vs, quadIndices, colorm, mode, filter)
}
// appendDrawImageHistory appends a draw-image history item to the image.
@ -375,7 +379,7 @@ func (i *Image) restore() error {
for _, v := range c.vertices {
vs = append(vs, v...)
}
gimg.DrawImage(c.image.image, vs, c.colorm, c.mode, c.filter)
gimg.DrawImage(c.image.image, vs, quadIndices, c.colorm, c.mode, c.filter)
}
i.image = gimg