mth/ebiten
1
0
Fork 0
mirror of https://github.com/hajimehoshi/ebiten.git synced 2024-12-25 03:08:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

Remove RenderTarget.SetAsViewport

Browse Source
This commit is contained in:
Hajime Hoshi 2013-10-27 23:55:44 +09:00
parent d97b7a2999
commit df50171c1f
2 changed files with 20 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
graphics/opengl/context.go
View File

@ -114,7 +114,7 @@ func (context *Context) SetOffscreen(renderTargetId graphics.RenderTargetId) {
func (context *Context) setOffscreen(rt *grendertarget.RenderTarget) {
C.glFlush()
rt.SetAsOffscreen(func(framebuffer interface{}) {
rt.SetAsOffscreen(func(framebuffer interface{}, x, y, width, height int) {
f := framebuffer.(rendertarget.Framebuffer)
C.glBindFramebuffer(C.GL_FRAMEBUFFER, C.GLuint(f))
err := C.glCheckFramebufferStatus(C.GL_FRAMEBUFFER)
@ -125,39 +125,24 @@ func (context *Context) setOffscreen(rt *grendertarget.RenderTarget) {
C.glBlendFuncSeparate(C.GL_SRC_ALPHA, C.GL_ONE_MINUS_SRC_ALPHA,
C.GL_ZERO, C.GL_ONE)
isUsingMainFramebuffer := rt == context.mainFramebufferTexture
setter := &viewportSetter{
isUsingMainFramebuffer,
context.screenHeight * context.screenScale,
context,
C.glViewport(C.GLint(x), C.GLint(y), C.GLsizei(width), C.GLsizei(height))
matrix := graphics.OrthoProjectionMatrix(x, width, y, height)
if rt == context.mainFramebufferTexture {
actualScreenHeight := context.screenHeight * context.screenScale
// Flip Y and move to fit with the top of the window.
matrix[1][1] *= -1
matrix[1][3] += float64(actualScreenHeight) / float64(height) * 2
}
for j := 0; j < 4; j++ {
for i := 0; i < 4; i++ {
context.projectionMatrix[i+j*4] = float32(matrix[i][j])
}
}
rt.SetAsViewport(setter.Set)
})
}
type viewportSetter struct {
isUsingMainFramebuffer bool
actualScreenHeight int
context *Context
}
func (v *viewportSetter) Set(x, y, width, height int) {
C.glViewport(C.GLint(x), C.GLint(y), C.GLsizei(width), C.GLsizei(height))
matrix := graphics.OrthoProjectionMatrix(x, width, y, height)
if v.isUsingMainFramebuffer {
// Flip Y and move to fit with the top of the window.
matrix[1][1] *= -1
matrix[1][3] += float64(v.actualScreenHeight) / float64(height) * 2
}
for j := 0; j < 4; j++ {
for i := 0; i < 4; i++ {
v.context.projectionMatrix[i+j*4] = float32(matrix[i][j])
}
}
}
func (context *Context) setMainFramebufferOffscreen() {
context.setOffscreen(context.mainFramebufferTexture)
}

11
graphics/rendertarget/render_target.go
View File

@ -16,10 +16,9 @@ func NewWithFramebuffer(texture *texture.Texture, framebuffer interface{}) *Rend
}
}
func (renderTarget *RenderTarget) SetAsViewport(setter func(x, y, width, height int)) {
renderTarget.texture.SetAsViewport(setter)
}
func (renderTarget *RenderTarget) SetAsOffscreen(setter func(framebuffer interface{})) {
setter(renderTarget.framebuffer)
func (renderTarget *RenderTarget) SetAsOffscreen(
setter func(framebuffer interface{}, x, y, width, height int)) {
renderTarget.texture.SetAsViewport(func(x, y, width, height int) {
setter(renderTarget.framebuffer, x, y, width, height)
})
}