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Hide some functions of RenderTarget

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This commit is contained in:
Hajime Hoshi 2014-01-11 09:03:00 +09:00
parent 1b6bc12ead
commit 96c53234e5
1 changed files with 12 additions and 15 deletions
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27
graphics/opengl/rendertarget/render_target.go
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@ -64,6 +64,12 @@ func CreateFromTexture(native NativeTexture, width, height int) *RenderTarget {
} }
func (r *RenderTarget) setAsViewport() { func (r *RenderTarget) setAsViewport() {
current := C.GLint(0)
C.glGetIntegerv(C.GL_FRAMEBUFFER_BINDING, &current)
if C.GLuint(current) == r.framebuffer {
return
}
C.glFlush() C.glFlush()
C.glBindFramebuffer(C.GL_FRAMEBUFFER, C.GLuint(r.framebuffer)) C.glBindFramebuffer(C.GL_FRAMEBUFFER, C.GLuint(r.framebuffer))
@ -80,16 +86,7 @@ func (r *RenderTarget) setAsViewport() {
C.glViewport(0, 0, C.GLsizei(width), C.GLsizei(height)) C.glViewport(0, 0, C.GLsizei(width), C.GLsizei(height))
} }
func (r *RenderTarget) SetAsViewport() { func (r *RenderTarget) projectionMatrix() [4][4]float64 {
current := C.GLint(0)
C.glGetIntegerv(C.GL_FRAMEBUFFER_BINDING, &current)
if C.GLuint(current) == r.framebuffer {
return
}
r.setAsViewport()
}
func (r *RenderTarget) ProjectionMatrix() [4][4]float64 {
width := graphics.AdjustSizeForTexture(r.width) width := graphics.AdjustSizeForTexture(r.width)
height := graphics.AdjustSizeForTexture(r.height) height := graphics.AdjustSizeForTexture(r.height)
matrix := graphics.OrthoProjectionMatrix(0, width, 0, height) matrix := graphics.OrthoProjectionMatrix(0, width, 0, height)
@ -106,7 +103,7 @@ func (r *RenderTarget) Dispose() {
} }
func (r *RenderTarget) Fill(red, green, blue uint8) { func (r *RenderTarget) Fill(red, green, blue uint8) {
r.SetAsViewport() r.setAsViewport()
const max = float64(math.MaxUint8) const max = float64(math.MaxUint8)
C.glClearColor( C.glClearColor(
C.GLclampf(float64(red)/max), C.GLclampf(float64(red)/max),
@ -118,15 +115,15 @@ func (r *RenderTarget) Fill(red, green, blue uint8) {
func (r *RenderTarget) DrawTexture(texture Texture, func (r *RenderTarget) DrawTexture(texture Texture,
geometryMatrix matrix.Geometry, colorMatrix matrix.Color) { geometryMatrix matrix.Geometry, colorMatrix matrix.Color) {
r.SetAsViewport() r.setAsViewport()
projectionMatrix := r.ProjectionMatrix() projectionMatrix := r.projectionMatrix()
texture.Draw(projectionMatrix, geometryMatrix, colorMatrix) texture.Draw(projectionMatrix, geometryMatrix, colorMatrix)
} }
func (r *RenderTarget) DrawTextureParts(texture Texture, func (r *RenderTarget) DrawTextureParts(texture Texture,
parts []graphics.TexturePart, parts []graphics.TexturePart,
geometryMatrix matrix.Geometry, colorMatrix matrix.Color) { geometryMatrix matrix.Geometry, colorMatrix matrix.Color) {
r.SetAsViewport() r.setAsViewport()
projectionMatrix := r.ProjectionMatrix() projectionMatrix := r.projectionMatrix()
texture.DrawParts(parts, projectionMatrix, geometryMatrix, colorMatrix) texture.DrawParts(parts, projectionMatrix, geometryMatrix, colorMatrix)
} }