()
| 13 | } |
| 14 | |
| 15 | func (glyph *Glyph) Texture() *sdl.Texture { |
| 16 | |
| 17 | if glyph.Image.Texture != nil { |
| 18 | return glyph.Image.Texture |
| 19 | } |
| 20 | |
| 21 | surf, err := globals.Font.RenderGlyphLCD(glyph.Rune, sdl.Color{255, 255, 255, 255}, sdl.Color{0, 0, 0, 255}) |
| 22 | |
| 23 | if err != nil { |
| 24 | // If there's an error rendering a glyph, we just assume it doesn't exist in the fontset |
| 25 | return nil |
| 26 | } |
| 27 | |
| 28 | defer surf.Destroy() |
| 29 | |
| 30 | newSurf, _ := surf.Convert(sdl.PIXELFORMAT_RGBA8888) |
| 31 | |
| 32 | defer newSurf.Destroy() |
| 33 | |
| 34 | // Here we manually draw the glyph to set the color to white, but modulate the alpha |
| 35 | // based on the color values |
| 36 | |
| 37 | // Format seems to be AGBR, not RGBA? |
| 38 | formatDetails, err := newSurf.Format.Details() |
| 39 | if err != nil { |
| 40 | panic(err) |
| 41 | } |
| 42 | |
| 43 | pixels := newSurf.Pixels() |
| 44 | |
| 45 | for y := 0; y < int(surf.H); y++ { |
| 46 | for x := 0; x < int(surf.W); x++ { |
| 47 | |
| 48 | i := int32(y)*newSurf.Pitch + int32(x)*int32(formatDetails.BytesPerPixel) |
| 49 | |
| 50 | // This would be to get the color unmodified. |
| 51 | // return color.RGBA{pixels[i+3], pixels[i+2], pixels[i+1], pixels[i]} |
| 52 | newSurf.WritePixel(int32(x), int32(y), 0xff, 0xff, 0xff, pixels[i+3]) |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | texture, err := globals.Renderer.CreateTextureFromSurface(newSurf) |
| 57 | |
| 58 | if err != nil { |
| 59 | panic(err) |
| 60 | } |
| 61 | // texture.SetScaleMode(sdl.SCALEMODE_NEAREST) |
| 62 | |
| 63 | glyph.Image.Texture = texture |
| 64 | glyph.Image.Size.X = float32(surf.W) |
| 65 | glyph.Image.Size.Y = float32(surf.H) |
| 66 | |
| 67 | return texture |
| 68 | |
| 69 | } |
| 70 | |
| 71 | func (glyph *Glyph) Width() int32 { |
| 72 | if glyph.Texture() == nil { |
no test coverage detected