Documentation
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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type BitmapTexture ¶
type BitmapTexture struct {
// contains filtered or unexported fields
}
BitmapTexture wraps an OpenGL handle for a downloaded image.
func NewBitmapTexture ¶
func NewBitmapTexture(gl opengl.OpenGL, width, height int, pixelData []byte) *BitmapTexture
NewBitmapTexture downloads the provided raw data to OpenGL and returns a BitmapTexture instance.
func (*BitmapTexture) Dispose ¶
func (tex *BitmapTexture) Dispose()
Dispose releases the OpenGL texture.
func (*BitmapTexture) Handle ¶
func (tex *BitmapTexture) Handle() uint32
Handle returns the texture handle.
func (*BitmapTexture) Size ¶
func (tex *BitmapTexture) Size() (width, height float32)
Size returns the dimensions of the bitmap, in pixels.
func (*BitmapTexture) UV ¶
func (tex *BitmapTexture) UV() (u, v float32)
UV returns the maximum U and V values for the bitmap. The bitmap will be stored in a power-of-two texture, which may be larger than the bitmap.
type PaletteCache ¶
type PaletteCache struct {
// contains filtered or unexported fields
}
PaletteCache loads palettes and provides OpenGL textures.
func NewPaletteCache ¶
func NewPaletteCache(gl opengl.OpenGL, localizer resource.Localizer) *PaletteCache
NewPaletteCache returns a new instance.
func (*PaletteCache) InvalidateResources ¶
func (cache *PaletteCache) InvalidateResources(ids []resource.ID)
InvalidateResources lets the cache remove any palette from resources that are specified in the given slice.
func (*PaletteCache) Palette ¶
func (cache *PaletteCache) Palette(index int) (*PaletteTexture, error)
Palette returns the palette with given index - if available.
type PaletteTexture ¶
type PaletteTexture struct {
// contains filtered or unexported fields
}
PaletteTexture contains a palette stored as OpenGL texture.
func NewPaletteTexture ¶
func NewPaletteTexture(gl opengl.OpenGL, palette bitmap.Palette) *PaletteTexture
NewPaletteTexture creates a new PaletteTexture instance.
func (*PaletteTexture) Dispose ¶
func (tex *PaletteTexture) Dispose()
Dispose releases the OpenGL texture.
func (*PaletteTexture) Handle ¶
func (tex *PaletteTexture) Handle() uint32
Handle returns the texture handle.
func (*PaletteTexture) Palette ¶
func (tex *PaletteTexture) Palette() bitmap.Palette
Palette returns the original palette.
func (*PaletteTexture) Update ¶
func (tex *PaletteTexture) Update(palette bitmap.Palette)
Update reloads the palette.
type TextureCache ¶
type TextureCache struct {
// contains filtered or unexported fields
}
TextureCache loads bitmaps and provides OpenGL textures.
func NewTextureCache ¶
func NewTextureCache(gl opengl.OpenGL, localizer resource.Localizer) *TextureCache
NewTextureCache returns a new instance.
func (*TextureCache) InvalidateResources ¶
func (cache *TextureCache) InvalidateResources(ids []resource.ID)
InvalidateResources lets the cache remove any textures from resources that are specified in the given slice.
func (*TextureCache) Texture ¶
func (cache *TextureCache) Texture(key resource.Key) (*BitmapTexture, error)
Texture returns the texture with given key - if available.
Source Files