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grpahics: Move DrawTriangles implementation to mipmap

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This commit is contained in:
Hajime Hoshi 2019-09-19 11:15:14 +09:00
parent 504a433540
commit e585fda253
2 changed files with 14 additions and 11 deletions
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12
image.go
View File

@ -477,17 +477,7 @@ func (i *Image) DrawTriangles(vertices []Vertex, indices []uint16, img *Image, o
filter = driver.Filter(img.filter)
}
vs := vertexSlice(len(vertices))
src := img.mipmap.original()
r := img.Bounds()
for idx, v := range vertices {
src.PutVertex(vs[idx*graphics.VertexFloatNum:(idx+1)*graphics.VertexFloatNum],
float32(v.DstX), float32(v.DstY), v.SrcX, v.SrcY,
float32(r.Min.X), float32(r.Min.Y), float32(r.Max.X), float32(r.Max.Y),
v.ColorR, v.ColorG, v.ColorB, v.ColorA)
}
i.mipmap.original().DrawTriangles(src, vs, indices, options.ColorM.impl, mode, filter, driver.Address(options.Address))
i.disposeMipmaps()
i.mipmap.drawTriangles(img.mipmap, img.Bounds(), vertices, indices, options.ColorM.impl, mode, filter, driver.Address(options.Address))
}
// SubImage returns an image representing the portion of the image p visible through r. The returned value shares pixels with the original image.

13
mipmap.go
View File

@ -20,6 +20,7 @@ import (
"image/color"
"math"
"github.com/hajimehoshi/ebiten/internal/affine"
"github.com/hajimehoshi/ebiten/internal/driver"
"github.com/hajimehoshi/ebiten/internal/graphics"
"github.com/hajimehoshi/ebiten/internal/shareable"
@ -78,6 +79,18 @@ func (m *mipmap) at(x, y int) (r, g, b, a byte) {
return m.orig.At(x, y)
}
func (m *mipmap) drawTriangles(src *mipmap, bounds image.Rectangle, vertices []Vertex, indices []uint16, clr *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address) {
vs := vertexSlice(len(vertices))
for idx, v := range vertices {
src.orig.PutVertex(vs[idx*graphics.VertexFloatNum:(idx+1)*graphics.VertexFloatNum],
float32(v.DstX), float32(v.DstY), v.SrcX, v.SrcY,
float32(bounds.Min.X), float32(bounds.Min.Y), float32(bounds.Max.X), float32(bounds.Max.Y),
v.ColorR, v.ColorG, v.ColorB, v.ColorA)
}
m.orig.DrawTriangles(src.orig, vs, indices, clr, mode, filter, address)
m.disposeMipmaps()
}
func (m *mipmap) level(r image.Rectangle, level int) *shareable.Image {
if level == 0 {
panic("ebiten: level must be non-zero at level")