diff options
Diffstat (limited to 'src/jogl')
| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/util/GLPixelBuffer.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/GLPixelBuffer.java b/src/jogl/classes/com/jogamp/opengl/util/GLPixelBuffer.java index 50124c349..a921a2818 100644 --- a/src/jogl/classes/com/jogamp/opengl/util/GLPixelBuffer.java +++ b/src/jogl/classes/com/jogamp/opengl/util/GLPixelBuffer.java @@ -30,11 +30,15 @@ package com.jogamp.opengl.util; import java.nio.Buffer; import java.nio.ByteBuffer; +import javax.media.nativewindow.util.PixelFormat; import javax.media.opengl.GL; +import javax.media.opengl.GL2; import javax.media.opengl.GL2ES2; import javax.media.opengl.GL2ES3; +import javax.media.opengl.GL2GL3; import javax.media.opengl.GLContext; import javax.media.opengl.GLException; +import javax.media.opengl.GLProfile; import com.jogamp.common.nio.Buffers; import com.jogamp.opengl.util.texture.TextureData; @@ -202,6 +206,56 @@ public class GLPixelBuffer { public GLPixelAttributes(int componentCount, int dataFormat, int dataType) { this(componentCount, dataFormat, dataType, true); } + + /** + * Returns the matching {@link GLPixelAttributes} for the given {@link PixelFormat} and {@link GLProfile} if exists, + * otherwise returns <code>null</code>. + */ + public static final GLPixelAttributes convert(PixelFormat pixFmt, GLProfile glp) { + int df = 0; // format + int dt = GL.GL_UNSIGNED_BYTE; // data type + switch(pixFmt) { + case LUMINANCE: + if( glp.isGL3ES3() ) { + // RED is supported on ES3 and >= GL3 [core]; ALPHA/LUMINANCE is deprecated on core + df = GL2ES2.GL_RED; + } else { + // ALPHA/LUMINANCE is supported on ES2 and GL2, i.e. <= GL3 [core] or compatibility + df = GL2ES2.GL_LUMINANCE; + } + break; + case BGR888: + if( glp.isGL2GL3() ) { + df = GL2GL3.GL_BGR; + } + break; + case RGB888: + df = GL.GL_RGB; + break; + case RGBA8888: + df = GL.GL_RGBA; + break; + case ABGR8888: + if( glp.isGL2GL3() ) { + df = GL.GL_RGBA; dt = GL2GL3.GL_UNSIGNED_INT_8_8_8_8; + } + break; + case BGRA8888: + df = GL.GL_BGRA; + break; + case ARGB8888: + if( glp.isGL2GL3() ) { + df = GL.GL_BGRA; dt = GL2GL3.GL_UNSIGNED_INT_8_8_8_8; + } + break; + default: + break; + } + if( 0 != df ) { + return new GLPixelAttributes(pixFmt.componentCount, df, dt, true); + } + return null; + } private GLPixelAttributes(int componentCount, int dataFormat, int dataType, boolean checkArgs) { this.componentCount = componentCount; this.format = dataFormat; @@ -216,6 +270,52 @@ public class GLPixelBuffer { } } } + + /** + * Returns the matching {@link PixelFormat} of this {@link GLPixelAttributes} if exists, + * otherwise returns <code>null</code>. + */ + public final PixelFormat getPixelFormat() { + final PixelFormat pixFmt; + // FIXME: Take 'type' into consideration and complete mapping! + switch(format) { + case GL.GL_ALPHA: + case GL.GL_LUMINANCE: + case GL2ES2.GL_RED: + pixFmt = PixelFormat.LUMINANCE; + break; + case GL.GL_RGB: + pixFmt = PixelFormat.RGB888; + break; + case GL.GL_RGBA: + pixFmt = PixelFormat.RGBA8888; + break; + case GL2.GL_BGR: + pixFmt = PixelFormat.BGR888; + break; + case GL.GL_BGRA: + pixFmt = PixelFormat.BGRA8888; + break; + default: + switch( bytesPerPixel ) { + case 1: + pixFmt = PixelFormat.LUMINANCE; + break; + case 3: + pixFmt = PixelFormat.RGB888; + break; + case 4: + pixFmt = PixelFormat.RGBA8888; + break; + default: + pixFmt = null; + break; + } + break; + } + return pixFmt; + } + @Override public String toString() { return "PixelAttributes[comp "+componentCount+", fmt 0x"+Integer.toHexString(format)+", type 0x"+Integer.toHexString(type)+", bytesPerPixel "+bytesPerPixel+"]"; |