atlas

package
v2.7.1 Latest Latest
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Published: Apr 7, 2024 License: Apache-2.0 Imports: 14 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BeginFrame

func BeginFrame(graphicsDriver graphicsdriver.Graphics) error

func DumpImages

func DumpImages(graphicsDriver graphicsdriver.Graphics, dir string) (string, error)

func EndFrame

func EndFrame() error

func SwapBuffers added in v2.7.0

func SwapBuffers(graphicsDriver graphicsdriver.Graphics) error

Types

type Image

type Image struct {
	// contains filtered or unexported fields
}

Image is a rectangle pixel set that might be on an atlas.

func NewImage

func NewImage(width, height int, imageType ImageType) *Image

func (*Image) Deallocate added in v2.7.0

func (i *Image) Deallocate()

Deallocate deallocates the internal state. Even after this call, the image is still available as a new cleared image.

func (*Image) DrawTriangles

func (i *Image) DrawTriangles(srcs [graphics.ShaderImageCount]*Image, vertices []float32, indices []uint32, blend graphicsdriver.Blend, dstRegion image.Rectangle, srcRegions [graphics.ShaderImageCount]image.Rectangle, shader *Shader, uniforms []uint32, fillRule graphicsdriver.FillRule)

DrawTriangles draws triangles with the given image.

The vertex floats are:

0: Destination X in pixels
1: Destination Y in pixels
2: Source X in pixels (the upper-left is (0, 0))
3: Source Y in pixels
4: Color R [0.0-1.0]
5: Color G
6: Color B
7: Color Y

func (*Image) DumpScreenshot added in v2.1.4

func (i *Image) DumpScreenshot(graphicsDriver graphicsdriver.Graphics, path string, blackbg bool) (string, error)

func (*Image) ReadPixels added in v2.4.0

func (i *Image) ReadPixels(graphicsDriver graphicsdriver.Graphics, pixels []byte, region image.Rectangle) (ok bool, err error)

func (*Image) WritePixels added in v2.4.0

func (i *Image) WritePixels(pix []byte, region image.Rectangle)

WritePixels replaces the pixels on the image.

type ImageType added in v2.4.0

type ImageType int
const (
	ImageTypeRegular ImageType = iota
	ImageTypeScreen
	ImageTypeVolatile
	ImageTypeUnmanaged
)

type Shader

type Shader struct {
	// contains filtered or unexported fields
}
var (
	NearestFilterShader *Shader
	LinearFilterShader  *Shader
)

func NewShader

func NewShader(ir *shaderir.Program) *Shader

func (*Shader) Deallocate added in v2.7.0

func (s *Shader) Deallocate()

Deallocate deallocates the internal state.

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