diff options
| author | Kenneth Russel <[email protected]> | 2008-07-16 08:03:23 +0000 |
|---|---|---|
| committer | Kenneth Russel <[email protected]> | 2008-07-16 08:03:23 +0000 |
| commit | 0867db5f547bedae63ed2be34cc02d7bf39e6ec9 (patch) | |
| tree | 9f76b5101dc62c413574b5bdc27dd5cb299457f2 /src/classes/com/sun/opengl/util/texture/awt | |
| parent | 9fc74686947d23bdd715580ad2ad2d74de24c8a0 (diff) | |
Reorganized TextureIO classes to enable code sharing between desktop
and mobile platforms
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/branches/JOGL_2_SANDBOX@1723 232f8b59-042b-4e1e-8c03-345bb8c30851
Diffstat (limited to 'src/classes/com/sun/opengl/util/texture/awt')
4 files changed, 533 insertions, 2155 deletions
diff --git a/src/classes/com/sun/opengl/util/texture/awt/AWTTextureData.java b/src/classes/com/sun/opengl/util/texture/awt/AWTTextureData.java index 41895cf1a..7e275cf3d 100755 --- a/src/classes/com/sun/opengl/util/texture/awt/AWTTextureData.java +++ b/src/classes/com/sun/opengl/util/texture/awt/AWTTextureData.java @@ -45,720 +45,447 @@ import java.awt.image.*; import java.nio.*; import javax.media.opengl.*; -import javax.media.opengl.util.*; import com.sun.opengl.util.texture.*; -import com.sun.opengl.util.texture.spi.*; -/** - * Represents the data for an OpenGL texture. This is separated from - * the notion of a Texture to support things like streaming in of - * textures in a background thread without requiring an OpenGL context - * to be current on that thread. - * - * @author Chris Campbell - * @author Kenneth Russell - */ - -public class AWTTextureData implements TextureData { - private int width; - private int height; - private int border; - private int pixelFormat; - private int pixelType; - private int internalFormat; // perhaps inferred from pixelFormat? - private boolean mipmap; // indicates whether mipmaps should be generated - // (ignored if mipmaps are supplied from the file) - private boolean dataIsCompressed; - private boolean mustFlipVertically; // Must flip texture coordinates - // vertically to get OpenGL output - // to look correct - private Buffer buffer; // the actual data... - private Buffer[] mipmapData; // ...or a series of mipmaps - private Flusher flusher; - private int rowLength; - private int alignment; // 1, 2, or 4 bytes - private int estimatedMemorySize; - - // Mechanism for lazily converting input BufferedImages with custom - // ColorModels to standard ones for uploading to OpenGL, as well as - // backing off from the optimizations of hoping that either - // GL_EXT_abgr or OpenGL 1.2 are present - private BufferedImage imageForLazyCustomConversion; - private boolean expectingEXTABGR; - private boolean haveEXTABGR; - private boolean expectingGL12; - private boolean haveGL12; - - private static final ColorModel rgbaColorModel = - new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), - new int[] {8, 8, 8, 8}, true, true, - Transparency.TRANSLUCENT, - DataBuffer.TYPE_BYTE); - private static final ColorModel rgbColorModel = - new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), - new int[] {8, 8, 8, 0}, false, false, - Transparency.OPAQUE, - DataBuffer.TYPE_BYTE); - - /** - * Constructs a new AWTTextureData object with the specified parameters - * and data contained in the given Buffer. The optional Flusher can - * be used to clean up native resources associated with this - * AWTTextureData when processing is complete; for example, closing of - * memory-mapped files that might otherwise require a garbage - * collection to reclaim and close. - * - * @param internalFormat the OpenGL internal format for the - * resulting texture; must be specified, may - * not be 0 - * @param width the width in pixels of the texture - * @param height the height in pixels of the texture - * @param border the number of pixels of border this texture - * data has (0 or 1) - * @param pixelFormat the OpenGL pixel format for the - * resulting texture; must be specified, may - * not be 0 - * @param pixelType the OpenGL type of the pixels of the texture - * @param mipmap indicates whether mipmaps should be - * autogenerated (using GLU) for the resulting - * texture. Currently if mipmap is true then - * dataIsCompressed may not be true. - * @param dataIsCompressed indicates whether the texture data is in - * compressed form - * (e.g. GL_COMPRESSED_RGB_S3TC_DXT1_EXT) - * @param mustFlipVertically indicates whether the texture - * coordinates must be flipped vertically - * in order to properly display the - * texture - * @param buffer the buffer containing the texture data - * @param flusher optional flusher to perform cleanup tasks - * upon call to flush() - * - * @throws IllegalArgumentException if any parameters of the texture - * data were invalid, such as requesting mipmap generation for a - * compressed texture - */ - public AWTTextureData(int internalFormat, - int width, - int height, - int border, - int pixelFormat, - int pixelType, - boolean mipmap, - boolean dataIsCompressed, - boolean mustFlipVertically, - Buffer buffer, - Flusher flusher) throws IllegalArgumentException { - if (mipmap && dataIsCompressed) { - throw new IllegalArgumentException("Can not generate mipmaps for compressed textures"); - } - - this.width = width; - this.height = height; - this.border = border; - this.pixelFormat = pixelFormat; - this.pixelType = pixelType; - this.internalFormat = internalFormat; - this.mipmap = mipmap; - this.dataIsCompressed = dataIsCompressed; - this.mustFlipVertically = mustFlipVertically; - this.buffer = buffer; - this.flusher = flusher; - alignment = 1; // FIXME: is this correct enough in all situations? - estimatedMemorySize = estimatedMemorySize(buffer); - } - - /** - * Constructs a new AWTTextureData object with the specified parameters - * and data for multiple mipmap levels contained in the given array - * of Buffers. The optional Flusher can be used to clean up native - * resources associated with this AWTTextureData when processing is - * complete; for example, closing of memory-mapped files that might - * otherwise require a garbage collection to reclaim and close. - * - * @param internalFormat the OpenGL internal format for the - * resulting texture; must be specified, may - * not be 0 - * @param width the width in pixels of the topmost mipmap - * level of the texture - * @param height the height in pixels of the topmost mipmap - * level of the texture - * @param border the number of pixels of border this texture - * data has (0 or 1) - * @param pixelFormat the OpenGL pixel format for the - * resulting texture; must be specified, may - * not be 0 - * @param pixelType the OpenGL type of the pixels of the texture - * @param dataIsCompressed indicates whether the texture data is in - * compressed form - * (e.g. GL_COMPRESSED_RGB_S3TC_DXT1_EXT) - * @param mustFlipVertically indicates whether the texture - * coordinates must be flipped vertically - * in order to properly display the - * texture - * @param mipmapData the buffers containing all mipmap levels - * of the texture's data - * @param flusher optional flusher to perform cleanup tasks - * upon call to flush() - * - * @throws IllegalArgumentException if any parameters of the texture - * data were invalid, such as requesting mipmap generation for a - * compressed texture - */ - public AWTTextureData(int internalFormat, - int width, - int height, - int border, - int pixelFormat, - int pixelType, - boolean dataIsCompressed, - boolean mustFlipVertically, - Buffer[] mipmapData, - Flusher flusher) throws IllegalArgumentException { - this.width = width; - this.height = height; - this.border = border; - this.pixelFormat = pixelFormat; - this.pixelType = pixelType; - this.internalFormat = internalFormat; - this.dataIsCompressed = dataIsCompressed; - this.mustFlipVertically = mustFlipVertically; - this.mipmapData = (Buffer[]) mipmapData.clone(); - this.flusher = flusher; - alignment = 1; // FIXME: is this correct enough in all situations? - for (int i = 0; i < mipmapData.length; i++) { - estimatedMemorySize += estimatedMemorySize(mipmapData[i]); - } - } - - /** - * Constructs a new AWTTextureData object with the specified parameters - * and data contained in the given BufferedImage. The resulting - * AWTTextureData "wraps" the contents of the BufferedImage, so if a - * modification is made to the BufferedImage between the time the - * AWTTextureData is constructed and when a Texture is made from the - * AWTTextureData, that modification will be visible in the resulting - * Texture. - * - * @param internalFormat the OpenGL internal format for the - * resulting texture; may be 0, in which case - * it is inferred from the image's type - * @param pixelFormat the OpenGL internal format for the - * resulting texture; may be 0, in which case - * it is inferred from the image's type (note: - * this argument is currently always ignored) - * @param mipmap indicates whether mipmaps should be - * autogenerated (using GLU) for the resulting - * texture - * @param image the image containing the texture data - */ - public AWTTextureData(int internalFormat, - int pixelFormat, - boolean mipmap, - BufferedImage image) { - if (internalFormat == 0) { - this.internalFormat = image.getColorModel().hasAlpha() ? GL.GL_RGBA : GL.GL_RGB; - } else { - this.internalFormat = internalFormat; - } - createFromImage(image); - this.mipmap = mipmap; - if (buffer != null) { - estimatedMemorySize = estimatedMemorySize(buffer); - } else { - // In the lazy custom conversion case we don't yet have a buffer - if (imageForLazyCustomConversion != null) { - estimatedMemorySize = estimatedMemorySize(wrapImageDataBuffer(imageForLazyCustomConversion)); - } +public class AWTTextureData extends TextureData { + // Mechanism for lazily converting input BufferedImages with custom + // ColorModels to standard ones for uploading to OpenGL, as well as + // backing off from the optimizations of hoping that either + // GL_EXT_abgr or OpenGL 1.2 are present + private BufferedImage imageForLazyCustomConversion; + private boolean expectingEXTABGR; + private boolean expectingGL12; + + private static final ColorModel rgbaColorModel = + new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + new int[] {8, 8, 8, 8}, true, true, + Transparency.TRANSLUCENT, + DataBuffer.TYPE_BYTE); + private static final ColorModel rgbColorModel = + new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + new int[] {8, 8, 8, 0}, false, false, + Transparency.OPAQUE, + DataBuffer.TYPE_BYTE); + + + /** + * Constructs a new TextureData object with the specified parameters + * and data contained in the given BufferedImage. The resulting + * TextureData "wraps" the contents of the BufferedImage, so if a + * modification is made to the BufferedImage between the time the + * TextureData is constructed and when a Texture is made from the + * TextureData, that modification will be visible in the resulting + * Texture. + * + * @param internalFormat the OpenGL internal format for the + * resulting texture; may be 0, in which case + * it is inferred from the image's type + * @param pixelFormat the OpenGL internal format for the + * resulting texture; may be 0, in which case + * it is inferred from the image's type (note: + * this argument is currently always ignored) + * @param mipmap indicates whether mipmaps should be + * autogenerated (using GLU) for the resulting + * texture + * @param image the image containing the texture data + */ + public AWTTextureData(int internalFormat, + int pixelFormat, + boolean mipmap, + BufferedImage image) { + super(); + if (internalFormat == 0) { + this.internalFormat = image.getColorModel().hasAlpha() ? GL.GL_RGBA : GL.GL_RGB; + } else { + this.internalFormat = internalFormat; + } + createFromImage(image); + this.mipmap = mipmap; + if (buffer != null) { + estimatedMemorySize = estimatedMemorySize(buffer); + } else { + // In the lazy custom conversion case we don't yet have a buffer + if (imageForLazyCustomConversion != null) { + estimatedMemorySize = estimatedMemorySize(wrapImageDataBuffer(imageForLazyCustomConversion)); + } + } } - } - /** Returns the width in pixels of the texture data. */ - public int getWidth() { return width; } - /** Returns the height in pixels of the texture data. */ - public int getHeight() { return height; } - /** Returns the border in pixels of the texture data. */ - public int getBorder() { return border; } - /** Returns the intended OpenGL pixel format of the texture data. */ - public int getPixelFormat() { - if (imageForLazyCustomConversion != null) { - if (!((expectingEXTABGR && haveEXTABGR) || - (expectingGL12 && haveGL12))) { - revertPixelFormatAndType(); - } - } - return pixelFormat; - } - /** Returns the intended OpenGL pixel type of the texture data. */ - public int getPixelType() { - if (imageForLazyCustomConversion != null) { - if (!((expectingEXTABGR && haveEXTABGR) || - (expectingGL12 && haveGL12))) { - revertPixelFormatAndType(); - } + /** Returns the intended OpenGL pixel format of the texture data. */ + public int getPixelFormat() { + if (imageForLazyCustomConversion != null) { + if (!((expectingEXTABGR && haveEXTABGR) || + (expectingGL12 && haveGL12))) { + revertPixelFormatAndType(); + } + } + return pixelFormat; } - return pixelType; - } - /** Returns the intended OpenGL internal format of the texture data. */ - public int getInternalFormat() { return internalFormat; } - /** Returns whether mipmaps should be generated for the texture data. */ - public boolean getMipmap() { return mipmap; } - /** Indicates whether the texture data is in compressed form. */ - public boolean isDataCompressed() { return dataIsCompressed; } - /** Indicates whether the texture coordinates must be flipped - vertically for proper display. */ - public boolean getMustFlipVertically() { return mustFlipVertically; } - /** Returns the texture data, or null if it is specified as a set of mipmaps. */ - public Buffer getBuffer() { - if (imageForLazyCustomConversion != null) { - if (!((expectingEXTABGR && haveEXTABGR) || - (expectingGL12 && haveGL12))) { - revertPixelFormatAndType(); - // Must present the illusion to the end user that we are simply - // wrapping the input BufferedImage - createFromCustom(imageForLazyCustomConversion); - } + /** Returns the intended OpenGL pixel type of the texture data. */ + public int getPixelType() { + if (imageForLazyCustomConversion != null) { + if (!((expectingEXTABGR && haveEXTABGR) || + (expectingGL12 && haveGL12))) { + revertPixelFormatAndType(); + } + } + return pixelType; } - return buffer; - } - /** Returns all mipmap levels for the texture data, or null if it is - specified as a single image. */ - public Buffer[] getMipmapData() { return mipmapData; } - /** Returns the required byte alignment for the texture data. */ - public int getAlignment() { return alignment; } - /** Returns the row length needed for correct GL_UNPACK_ROW_LENGTH - specification. This is currently only supported for - non-mipmapped, non-compressed textures. */ - public int getRowLength() { return rowLength; } - /** Sets the width in pixels of the texture data. */ - public void setWidth(int width) { this.width = width; } - /** Sets the height in pixels of the texture data. */ - public void setHeight(int height) { this.height = height; } - /** Sets the border in pixels of the texture data. */ - public void setBorder(int border) { this.border = border; } - /** Sets the intended OpenGL pixel format of the texture data. */ - public void setPixelFormat(int pixelFormat) { this.pixelFormat = pixelFormat; } - /** Sets the intended OpenGL pixel type of the texture data. */ - public void setPixelType(int pixelType) { this.pixelType = pixelType; } - /** Sets the intended OpenGL internal format of the texture data. */ - public void setInternalFormat(int internalFormat) { this.internalFormat = internalFormat; } - /** Sets whether mipmaps should be generated for the texture data. */ - public void setMipmap(boolean mipmap) { this.mipmap = mipmap; } - /** Sets whether the texture data is in compressed form. */ - public void setIsDataCompressed(boolean compressed) { this.dataIsCompressed = compressed; } - /** Sets whether the texture coordinates must be flipped vertically - for proper display. */ - public void setMustFlipVertically(boolean mustFlipVertically) { this.mustFlipVertically = mustFlipVertically; } - /** Sets the texture data. */ - public void setBuffer(Buffer buffer) { - this.buffer = buffer; - estimatedMemorySize = estimatedMemorySize(buffer); - } - /** Sets the required byte alignment for the texture data. */ - public void setAlignment(int alignment) { this.alignment = alignment; } - /** Sets the row length needed for correct GL_UNPACK_ROW_LENGTH - specification. This is currently only supported for - non-mipmapped, non-compressed textures. */ - public void setRowLength(int rowLength) { this.rowLength = rowLength; } - /** Indicates to this TextureData whether the GL_EXT_abgr extension - is available. Used for optimization along some code paths to - avoid data copies. */ - public void setHaveEXTABGR(boolean haveEXTABGR) { - this.haveEXTABGR = haveEXTABGR; - } - /** Indicates to this TextureData whether OpenGL version 1.2 is - available. If not, falls back to relatively inefficient code - paths for several input data types (several kinds of packed - pixel formats, in particular). */ - public void setHaveGL12(boolean haveGL12) { - this.haveGL12 = haveGL12; - } - - /** Returns an estimate of the amount of memory in bytes this - TextureData will consume once uploaded to the graphics card. It - should only be treated as an estimate; most applications should - not need to query this but instead let the OpenGL implementation - page textures in and out as necessary. */ - public int getEstimatedMemorySize() { - return estimatedMemorySize; - } - - /** Flushes resources associated with this TextureData by calling - Flusher.flush(). */ - public void flush() { - if (flusher != null) { - flusher.flush(); - flusher = null; + /** Returns the texture data, or null if it is specified as a set of mipmaps. */ + public Buffer getBuffer() { + if (imageForLazyCustomConversion != null) { + if (!((expectingEXTABGR && haveEXTABGR) || + (expectingGL12 && haveGL12))) { + revertPixelFormatAndType(); + // Must present the illusion to the end user that we are simply + // wrapping the input BufferedImage + createFromCustom(imageForLazyCustomConversion); + } + } + return buffer; } - } - - //---------------------------------------------------------------------- - // Internals only below this point - // - private void createNIOBufferFromImage(BufferedImage image) { - buffer = wrapImageDataBuffer(image); - } + private void createFromImage(BufferedImage image) { + pixelType = 0; // Determine from image + mustFlipVertically = true; + + width = image.getWidth(); + height = image.getHeight(); + + int scanlineStride; + SampleModel sm = image.getRaster().getSampleModel(); + if (sm instanceof SinglePixelPackedSampleModel) { + scanlineStride = + ((SinglePixelPackedSampleModel)sm).getScanlineStride(); + } else if (sm instanceof MultiPixelPackedSampleModel) { + scanlineStride = + ((MultiPixelPackedSampleModel)sm).getScanlineStride(); + } else if (sm instanceof ComponentSampleModel) { + scanlineStride = + ((ComponentSampleModel)sm).getScanlineStride(); + } else { + // This will only happen for TYPE_CUSTOM anyway + setupLazyCustomConversion(image); + return; + } - private Buffer wrapImageDataBuffer(BufferedImage image) { - // - // Note: Grabbing the DataBuffer will defeat Java2D's image - // management mechanism (as of JDK 5/6, at least). This shouldn't - // be a problem for most JOGL apps, but those that try to upload - // the image into an OpenGL texture and then use the same image in - // Java2D rendering might find the 2D rendering is not as fast as - // it could be. - // + if (GLProfile.isGL2()) { + switch (image.getType()) { + case BufferedImage.TYPE_INT_RGB: + pixelFormat = GL2.GL_BGRA; + pixelType = GL2.GL_UNSIGNED_INT_8_8_8_8_REV; + rowLength = scanlineStride; + alignment = 4; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_INT_ARGB_PRE: + pixelFormat = GL2.GL_BGRA; + pixelType = GL2.GL_UNSIGNED_INT_8_8_8_8_REV; + rowLength = scanlineStride; + alignment = 4; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_INT_BGR: + pixelFormat = GL.GL_RGBA; + pixelType = GL2.GL_UNSIGNED_INT_8_8_8_8_REV; + rowLength = scanlineStride; + alignment = 4; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_3BYTE_BGR: + { + // we can pass the image data directly to OpenGL only if + // we have an integral number of pixels in each scanline + if ((scanlineStride % 3) == 0) { + pixelFormat = GL2.GL_BGR; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride / 3; + alignment = 1; + } else { + setupLazyCustomConversion(image); + return; + } + } + break; + case BufferedImage.TYPE_4BYTE_ABGR_PRE: + { + // we can pass the image data directly to OpenGL only if + // we have an integral number of pixels in each scanline + // and only if the GL_EXT_abgr extension is present + + // NOTE: disabling this code path for now as it appears it's + // buggy at least on some NVidia drivers and doesn't perform + // the necessary byte swapping (FIXME: needs more + // investigation) + if ((scanlineStride % 4) == 0 && false) { + pixelFormat = GL2.GL_ABGR_EXT; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride / 4; + alignment = 4; + + // Store a reference to the original image for later in + // case it turns out that we don't have GL_EXT_abgr at the + // time we're going to do the texture upload to OpenGL + setupLazyCustomConversion(image); + expectingEXTABGR = true; + break; + } else { + setupLazyCustomConversion(image); + return; + } + } + case BufferedImage.TYPE_USHORT_565_RGB: + pixelFormat = GL.GL_RGB; + pixelType = GL.GL_UNSIGNED_SHORT_5_6_5; + rowLength = scanlineStride; + alignment = 2; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_USHORT_555_RGB: + pixelFormat = GL2.GL_BGRA; + pixelType = GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV; + rowLength = scanlineStride; + alignment = 2; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_BYTE_GRAY: + pixelFormat = GL.GL_LUMINANCE; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride; + alignment = 1; + break; + case BufferedImage.TYPE_USHORT_GRAY: + pixelFormat = GL.GL_LUMINANCE; + pixelType = GL.GL_UNSIGNED_SHORT; + rowLength = scanlineStride; + alignment = 2; + break; + // Note: TYPE_INT_ARGB and TYPE_4BYTE_ABGR images go down the + // custom code path to satisfy the invariant that images with an + // alpha channel always go down with premultiplied alpha. + case BufferedImage.TYPE_INT_ARGB: + case BufferedImage.TYPE_4BYTE_ABGR: + case BufferedImage.TYPE_BYTE_BINARY: + case BufferedImage.TYPE_BYTE_INDEXED: + case BufferedImage.TYPE_CUSTOM: + default: + ColorModel cm = image.getColorModel(); + if (cm.equals(rgbColorModel)) { + pixelFormat = GL.GL_RGB; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride / 3; + alignment = 1; + } else if (cm.equals(rgbaColorModel)) { + pixelFormat = GL.GL_RGBA; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride / 4; // FIXME: correct? + alignment = 4; + } else { + setupLazyCustomConversion(image); + return; + } + break; + } + } else { + switch (image.getType()) { + case BufferedImage.TYPE_INT_RGB: + pixelFormat = GL.GL_RGB; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride; + alignment = 3; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_INT_ARGB_PRE: + throw new GLException("INT_ARGB_PRE n.a."); + case BufferedImage.TYPE_INT_BGR: + throw new GLException("INT_BGR n.a."); + case BufferedImage.TYPE_3BYTE_BGR: + throw new GLException("INT_BGR n.a."); + case BufferedImage.TYPE_4BYTE_ABGR_PRE: + throw new GLException("INT_BGR n.a."); + case BufferedImage.TYPE_USHORT_565_RGB: + pixelFormat = GL.GL_RGB; + pixelType = GL.GL_UNSIGNED_SHORT_5_6_5; + rowLength = scanlineStride; + alignment = 2; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_USHORT_555_RGB: + pixelFormat = GL.GL_RGBA; + pixelType = GL.GL_UNSIGNED_SHORT_5_5_5_1; + rowLength = scanlineStride; + alignment = 2; + expectingGL12 = true; + setupLazyCustomConversion(image); + break; + case BufferedImage.TYPE_BYTE_GRAY: + pixelFormat = GL.GL_LUMINANCE; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride; + alignment = 1; + break; + case BufferedImage.TYPE_USHORT_GRAY: + throw new GLException("USHORT_GRAY n.a."); + // Note: TYPE_INT_ARGB and TYPE_4BYTE_ABGR images go down the + // custom code path to satisfy the invariant that images with an + // alpha channel always go down with premultiplied alpha. + case BufferedImage.TYPE_INT_ARGB: + case BufferedImage.TYPE_4BYTE_ABGR: + case BufferedImage.TYPE_BYTE_BINARY: + case BufferedImage.TYPE_BYTE_INDEXED: + case BufferedImage.TYPE_CUSTOM: + default: + ColorModel cm = image.getColorModel(); + if (cm.equals(rgbColorModel)) { + pixelFormat = GL.GL_RGB; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride / 3; + alignment = 1; + } else if (cm.equals(rgbaColorModel)) { + pixelFormat = GL.GL_RGBA; + pixelType = GL.GL_UNSIGNED_BYTE; + rowLength = scanlineStride / 4; // FIXME: correct? + alignment = 4; + } else { + setupLazyCustomConversion(image); + return; + } + break; + } + } - DataBuffer data = image.getRaster().getDataBuffer(); - if (data instanceof DataBufferByte) { - return ByteBuffer.wrap(((DataBufferByte) data).getData()); - } else if (data instanceof DataBufferDouble) { - throw new RuntimeException("DataBufferDouble rasters not supported by OpenGL"); - } else if (data instanceof DataBufferFloat) { - return FloatBuffer.wrap(((DataBufferFloat) data).getData()); - } else if (data instanceof DataBufferInt) { - return IntBuffer.wrap(((DataBufferInt) data).getData()); - } else if (data instanceof DataBufferShort) { - return ShortBuffer.wrap(((DataBufferShort) data).getData()); - } else if (data instanceof DataBufferUShort) { - return ShortBuffer.wrap(((DataBufferUShort) data).getData()); - } else { - throw new RuntimeException("Unexpected DataBuffer type?"); + createNIOBufferFromImage(image); } - } - private void createFromImage(BufferedImage image) { - pixelType = 0; // Determine from image - mustFlipVertically = true; - - width = image.getWidth(); - height = image.getHeight(); - - int scanlineStride; - SampleModel sm = image.getRaster().getSampleModel(); - if (sm instanceof SinglePixelPackedSampleModel) { - scanlineStride = - ((SinglePixelPackedSampleModel)sm).getScanlineStride(); - } else if (sm instanceof MultiPixelPackedSampleModel) { - scanlineStride = - ((MultiPixelPackedSampleModel)sm).getScanlineStride(); - } else if (sm instanceof ComponentSampleModel) { - scanlineStride = - ((ComponentSampleModel)sm).getScanlineStride(); - } else { - // This will only happen for TYPE_CUSTOM anyway - setupLazyCustomConversion(image); - return; + private void setupLazyCustomConversion(BufferedImage image) { + imageForLazyCustomConversion = image; + boolean hasAlpha = image.getColorModel().hasAlpha(); + if (pixelFormat == 0) { + pixelFormat = hasAlpha ? GL.GL_RGBA : GL.GL_RGB; + } + alignment = 1; // FIXME: do we need better? + rowLength = width; // FIXME: correct in all cases? + + // Allow previously-selected pixelType (if any) to override that + // we can infer from the DataBuffer + DataBuffer data = image.getRaster().getDataBuffer(); + if (data instanceof DataBufferByte || isPackedInt(image)) { + // Don't use GL_UNSIGNED_INT for BufferedImage packed int images + if (pixelType == 0) pixelType = GL.GL_UNSIGNED_BYTE; + } else if (data instanceof DataBufferDouble) { + throw new RuntimeException("DataBufferDouble rasters not supported by OpenGL"); + } else if (data instanceof DataBufferFloat) { + if (pixelType == 0) pixelType = GL.GL_FLOAT; + } else if (data instanceof DataBufferInt) { + // FIXME: should we support signed ints? + if (pixelType == 0) pixelType = GL2.GL_UNSIGNED_INT; + } else if (data instanceof DataBufferShort) { + if (pixelType == 0) pixelType = GL.GL_SHORT; + } else if (data instanceof DataBufferUShort) { + if (pixelType == 0) pixelType = GL.GL_UNSIGNED_SHORT; + } else { + throw new RuntimeException("Unexpected DataBuffer type?"); + } } - if(GLProfile.isGL2()) { - switch (image.getType()) { - case BufferedImage.TYPE_INT_RGB: - pixelFormat = GL2.GL_BGRA; - pixelType = GL2.GL_UNSIGNED_INT_8_8_8_8_REV; - rowLength = scanlineStride; - alignment = 4; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_INT_ARGB_PRE: - pixelFormat = GL2.GL_BGRA; - pixelType = GL2.GL_UNSIGNED_INT_8_8_8_8_REV; - rowLength = scanlineStride; - alignment = 4; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_INT_BGR: - pixelFormat = GL.GL_RGBA; - pixelType = GL2.GL_UNSIGNED_INT_8_8_8_8_REV; - rowLength = scanlineStride; - alignment = 4; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_3BYTE_BGR: - { - // we can pass the image data directly to OpenGL only if - // we have an integral number of pixels in each scanline - if ((scanlineStride % 3) == 0) { - pixelFormat = GL2.GL_BGR; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride / 3; - alignment = 1; - } else { - setupLazyCustomConversion(image); - return; - } - } - break; - case BufferedImage.TYPE_4BYTE_ABGR_PRE: - { - // we can pass the image data directly to OpenGL only if - // we have an integral number of pixels in each scanline - // and only if the GL_EXT_abgr extension is present - - // NOTE: disabling this code path for now as it appears it's - // buggy at least on some NVidia drivers and doesn't perform - // the necessary byte swapping (FIXME: needs more - // investigation) - if ((scanlineStride % 4) == 0 && false) { - pixelFormat = GL2.GL_ABGR_EXT; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride / 4; - alignment = 4; - - // Store a reference to the original image for later in - // case it turns out that we don't have GL_EXT_abgr at the - // time we're going to do the texture upload to OpenGL - setupLazyCustomConversion(image); - expectingEXTABGR = true; - break; - } else { - setupLazyCustomConversion(image); - return; - } - } - case BufferedImage.TYPE_USHORT_565_RGB: - pixelFormat = GL.GL_RGB; - pixelType = GL.GL_UNSIGNED_SHORT_5_6_5; - rowLength = scanlineStride; - alignment = 2; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_USHORT_555_RGB: - pixelFormat = GL2.GL_BGRA; - pixelType = GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV; - rowLength = scanlineStride; - alignment = 2; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_BYTE_GRAY: - pixelFormat = GL.GL_LUMINANCE; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride; - alignment = 1; - break; - case BufferedImage.TYPE_USHORT_GRAY: - pixelFormat = GL.GL_LUMINANCE; - pixelType = GL.GL_UNSIGNED_SHORT; - rowLength = scanlineStride; - alignment = 2; - break; - // Note: TYPE_INT_ARGB and TYPE_4BYTE_ABGR images go down the - // custom code path to satisfy the invariant that images with an - // alpha channel always go down with premultiplied alpha. - case BufferedImage.TYPE_INT_ARGB: - case BufferedImage.TYPE_4BYTE_ABGR: - case BufferedImage.TYPE_BYTE_BINARY: - case BufferedImage.TYPE_BYTE_INDEXED: - case BufferedImage.TYPE_CUSTOM: - default: - ColorModel cm = image.getColorModel(); - if (cm.equals(rgbColorModel)) { - pixelFormat = GL.GL_RGB; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride / 3; - alignment = 1; - } else if (cm.equals(rgbaColorModel)) { - pixelFormat = GL.GL_RGBA; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride / 4; // FIXME: correct? - alignment = 4; - } else { - setupLazyCustomConversion(image); - return; - } - break; + private void createFromCustom(BufferedImage image) { + int width = image.getWidth(); + int height = image.getHeight(); + + // create a temporary image that is compatible with OpenGL + boolean hasAlpha = image.getColorModel().hasAlpha(); + ColorModel cm = null; + int dataBufferType = image.getRaster().getDataBuffer().getDataType(); + // Don't use integer components for packed int images + if (isPackedInt(image)) { + dataBufferType = DataBuffer.TYPE_BYTE; } - } else { - switch (image.getType()) { - case BufferedImage.TYPE_INT_RGB: - pixelFormat = GL.GL_RGB; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride; - alignment = 3; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_INT_ARGB_PRE: - throw new GLException("INT_ARGB_PRE n.a."); - case BufferedImage.TYPE_INT_BGR: - throw new GLException("INT_BGR n.a."); - case BufferedImage.TYPE_3BYTE_BGR: - throw new GLException("INT_BGR n.a."); - case BufferedImage.TYPE_4BYTE_ABGR_PRE: - throw new GLException("INT_BGR n.a."); - case BufferedImage.TYPE_USHORT_565_RGB: - pixelFormat = GL.GL_RGB; - pixelType = GL.GL_UNSIGNED_SHORT_5_6_5; - rowLength = scanlineStride; - alignment = 2; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_USHORT_555_RGB: - pixelFormat = GL.GL_RGBA; - pixelType = GL.GL_UNSIGNED_SHORT_5_5_5_1; - rowLength = scanlineStride; - alignment = 2; - expectingGL12 = true; - setupLazyCustomConversion(image); - break; - case BufferedImage.TYPE_BYTE_GRAY: - pixelFormat = GL.GL_LUMINANCE; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride; - alignment = 1; - break; - case BufferedImage.TYPE_USHORT_GRAY: - throw new GLException("USHORT_GRAY n.a."); - // Note: TYPE_INT_ARGB and TYPE_4BYTE_ABGR images go down the - // custom code path to satisfy the invariant that images with an - // alpha channel always go down with premultiplied alpha. - case BufferedImage.TYPE_INT_ARGB: - case BufferedImage.TYPE_4BYTE_ABGR: - case BufferedImage.TYPE_BYTE_BINARY: - case BufferedImage.TYPE_BYTE_INDEXED: - case BufferedImage.TYPE_CUSTOM: - default: - ColorModel cm = image.getColorModel(); - if (cm.equals(rgbColorModel)) { - pixelFormat = GL.GL_RGB; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride / 3; - alignment = 1; - } else if (cm.equals(rgbaColorModel)) { - pixelFormat = GL.GL_RGBA; - pixelType = GL.GL_UNSIGNED_BYTE; - rowLength = scanlineStride / 4; // FIXME: correct? - alignment = 4; + if (dataBufferType == DataBuffer.TYPE_BYTE) { + cm = hasAlpha ? rgbaColorModel : rgbColorModel; + } else { + if (hasAlpha) { + cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + null, true, true, + Transparency.TRANSLUCENT, + dataBufferType); } else { - setupLazyCustomConversion(image); - return; + cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + null, false, false, + Transparency.OPAQUE, + dataBufferType); } - break; } - } - createNIOBufferFromImage(image); - } + boolean premult = cm.isAlphaPremultiplied(); + WritableRaster raster = + cm.createCompatibleWritableRaster(width, height); + BufferedImage texImage = new BufferedImage(cm, raster, premult, null); - private void setupLazyCustomConversion(BufferedImage image) { - imageForLazyCustomConversion = image; - boolean hasAlpha = image.getColorModel().hasAlpha(); - if (pixelFormat == 0) { - pixelFormat = hasAlpha ? GL.GL_RGBA : GL.GL_RGB; - } - alignment = 1; // FIXME: do we need better? - rowLength = width; // FIXME: correct in all cases? + // copy the source image into the temporary image + Graphics2D g = texImage.createGraphics(); + g.setComposite(AlphaComposite.Src); + g.drawImage(image, 0, 0, null); + g.dispose(); - // Allow previously-selected pixelType (if any) to override that - // we can infer from the DataBuffer - DataBuffer data = image.getRaster().getDataBuffer(); - if (data instanceof DataBufferByte || isPackedInt(image)) { - // Don't use GL_UNSIGNED_INT for BufferedImage packed int images - if (pixelType == 0) pixelType = GL.GL_UNSIGNED_BYTE; - } else if (data instanceof DataBufferDouble) { - throw new RuntimeException("DataBufferDouble rasters not supported by OpenGL"); - } else if (data instanceof DataBufferFloat) { - if (pixelType == 0) pixelType = GL.GL_FLOAT; - } else if ((data instanceof DataBufferInt) && GLProfile.isGL2ES2()) { - // FIXME: should we support signed ints? - if (pixelType == 0) pixelType = GL2.GL_UNSIGNED_INT; - } else if (data instanceof DataBufferShort) { - if (pixelType == 0) pixelType = GL.GL_SHORT; - } else if (data instanceof DataBufferUShort) { - if (pixelType == 0) pixelType = GL.GL_UNSIGNED_SHORT; - } else { - throw new RuntimeException("Unexpected DataBuffer type?"); + // Wrap the buffer from the temporary image + createNIOBufferFromImage(texImage); } - } - - private void createFromCustom(BufferedImage image) { - int width = image.getWidth(); - int height = image.getHeight(); - // create a temporary image that is compatible with OpenGL - boolean hasAlpha = image.getColorModel().hasAlpha(); - ColorModel cm = null; - int dataBufferType = image.getRaster().getDataBuffer().getDataType(); - // Don't use integer components for packed int images - if (isPackedInt(image)) { - dataBufferType = DataBuffer.TYPE_BYTE; - } - if (dataBufferType == DataBuffer.TYPE_BYTE) { - cm = hasAlpha ? rgbaColorModel : rgbColorModel; - } else { - if (hasAlpha) { - cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), - null, true, true, - Transparency.TRANSLUCENT, - dataBufferType); - } else { - cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), - null, false, false, - Transparency.OPAQUE, - dataBufferType); - } + private boolean isPackedInt(BufferedImage image) { + int imgType = image.getType(); + return (imgType == BufferedImage.TYPE_INT_RGB || + imgType == BufferedImage.TYPE_INT_BGR || + imgType == BufferedImage.TYPE_INT_ARGB || + imgType == BufferedImage.TYPE_INT_ARGB_PRE); } - boolean premult = cm.isAlphaPremultiplied(); - WritableRaster raster = - cm.createCompatibleWritableRaster(width, height); - BufferedImage texImage = new BufferedImage(cm, raster, premult, null); - - // copy the source image into the temporary image - Graphics2D g = texImage.createGraphics(); - g.setComposite(AlphaComposite.Src); - g.drawImage(image, 0, 0, null); - g.dispose(); - - // Wrap the buffer from the temporary image - createNIOBufferFromImage(texImage); - } - - private boolean isPackedInt(BufferedImage image) { - int imgType = image.getType(); - return (imgType == BufferedImage.TYPE_INT_RGB || - imgType == BufferedImage.TYPE_INT_BGR || - imgType == BufferedImage.TYPE_INT_ARGB || - imgType == BufferedImage.TYPE_INT_ARGB_PRE); - } - - private void revertPixelFormatAndType() { - // Knowing we don't have e.g. OpenGL 1.2 functionality available, - // and knowing we're in the process of doing the fallback code - // path, re-infer a vanilla pixel format and type compatible with - // OpenGL 1.1 - pixelFormat = 0; - pixelType = 0; - setupLazyCustomConversion(imageForLazyCustomConversion); - } + private void revertPixelFormatAndType() { + // Knowing we don't have e.g. OpenGL 1.2 functionality available, + // and knowing we're in the process of doing the fallback code + // path, re-infer a vanilla pixel format and type compatible with + // OpenGL 1.1 + pixelFormat = 0; + pixelType = 0; + setupLazyCustomConversion(imageForLazyCustomConversion); + } - private int estimatedMemorySize(Buffer buffer) { - if (buffer == null) { - return 0; + private void createNIOBufferFromImage(BufferedImage image) { + buffer = wrapImageDataBuffer(image); } - int capacity = buffer.capacity(); - if (buffer instanceof ByteBuffer) { - return capacity; - } else if (buffer instanceof IntBuffer) { - return capacity * BufferUtil.SIZEOF_INT; - } else if (buffer instanceof FloatBuffer) { - return capacity * BufferUtil.SIZEOF_FLOAT; - } else if (buffer instanceof ShortBuffer) { - return capacity * BufferUtil.SIZEOF_SHORT; - } else if (buffer instanceof LongBuffer) { - return capacity * BufferUtil.SIZEOF_LONG; - } else if (buffer instanceof DoubleBuffer) { - return capacity * BufferUtil.SIZEOF_DOUBLE; + + private Buffer wrapImageDataBuffer(BufferedImage image) { + // + // Note: Grabbing the DataBuffer will defeat Java2D's image + // management mechanism (as of JDK 5/6, at least). This shouldn't + // be a problem for most JOGL apps, but those that try to upload + // the image into an OpenGL texture and then use the same image in + // Java2D rendering might find the 2D rendering is not as fast as + // it could be. + // + + DataBuffer data = image.getRaster().getDataBuffer(); + if (data instanceof DataBufferByte) { + return ByteBuffer.wrap(((DataBufferByte) data).getData()); + } else if (data instanceof DataBufferDouble) { + throw new RuntimeException("DataBufferDouble rasters not supported by OpenGL"); + } else if (data instanceof DataBufferFloat) { + return FloatBuffer.wrap(((DataBufferFloat) data).getData()); + } else if (data instanceof DataBufferInt) { + return IntBuffer.wrap(((DataBufferInt) data).getData()); + } else if (data instanceof DataBufferShort) { + return ShortBuffer.wrap(((DataBufferShort) data).getData()); + } else if (data instanceof DataBufferUShort) { + return ShortBuffer.wrap(((DataBufferUShort) data).getData()); + } else { + throw new RuntimeException("Unexpected DataBuffer type?"); + } } - throw new RuntimeException("Unexpected buffer type " + - buffer.getClass().getName()); - } } diff --git a/src/classes/com/sun/opengl/util/texture/awt/AWTTextureIO.java b/src/classes/com/sun/opengl/util/texture/awt/AWTTextureIO.java new file mode 100644 index 000000000..490d150cc --- /dev/null +++ b/src/classes/com/sun/opengl/util/texture/awt/AWTTextureIO.java @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistribution of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistribution in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * Neither the name of Sun Microsystems, Inc. or the names of + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * This software is provided "AS IS," without a warranty of any kind. ALL + * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, + * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN + * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR + * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR + * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE + * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, + * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF + * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + * + * You acknowledge that this software is not designed or intended for use + * in the design, construction, operation or maintenance of any nuclear + * facility. + * + * Sun gratefully acknowledges that this software was originally authored + * and developed by Kenneth Bradley Russell and Christopher John Kline. + */ + +package com.sun.opengl.util.texture.awt; + +import java.awt.image.*; + +import javax.media.opengl.*; +import com.sun.opengl.util.texture.*; + +public class AWTTextureIO extends TextureIO { + /** + * Creates a TextureData from the given BufferedImage. Does no + * OpenGL work. + * + * @param image the BufferedImage containing the texture data + * @param mipmap whether mipmaps should be produced for this + * texture by autogenerating them + * @return the texture data from the image + */ + public static TextureData newTextureData(BufferedImage image, + boolean mipmap) { + return newTextureDataImpl(image, 0, 0, mipmap); + } + + /** + * Creates a TextureData from the given BufferedImage, using the + * specified OpenGL internal format and pixel format for the texture + * which will eventually result. The internalFormat and pixelFormat + * must be specified and may not be zero; to use default values, use + * the variant of this method which does not take these + * arguments. Does no OpenGL work. + * + * @param image the BufferedImage containing the texture data + * @param internalFormat the OpenGL internal format of the texture + * which will eventually result from the TextureData + * @param pixelFormat the OpenGL pixel format of the texture + * which will eventually result from the TextureData + * @param mipmap whether mipmaps should be produced for this + * texture either by autogenerating them or + * reading them from the file. Some file formats + * support multiple mipmaps in a single file in + * which case those mipmaps will be used rather + * than generating them. + * @return the texture data from the image + * @throws IllegalArgumentException if either internalFormat or + * pixelFormat was 0 + */ + public static TextureData newTextureData(BufferedImage image, + int internalFormat, + int pixelFormat, + boolean mipmap) throws IllegalArgumentException { + if ((internalFormat == 0) || (pixelFormat == 0)) { + throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); + } + + return newTextureDataImpl(image, internalFormat, pixelFormat, mipmap); + } + + /** + * Creates an OpenGL texture object from the specified BufferedImage + * using the current OpenGL context. + * + * @param image the BufferedImage from which to read the texture data + * @param mipmap whether mipmaps should be produced for this + * texture by autogenerating them + * @throws GLException if no OpenGL context is current or if an + * OpenGL error occurred + */ + public static Texture newTexture(BufferedImage image, boolean mipmap) throws GLException { + TextureData data = newTextureData(image, mipmap); + Texture texture = newTexture(data); + data.flush(); + return texture; + } + + private static TextureData newTextureDataImpl(BufferedImage image, + int internalFormat, + int pixelFormat, + boolean mipmap) { + return new AWTTextureData(internalFormat, pixelFormat, mipmap, image); + } +} diff --git a/src/classes/com/sun/opengl/util/texture/awt/AWTTextureReader.java b/src/classes/com/sun/opengl/util/texture/awt/AWTTextureReader.java deleted file mode 100755 index 13d8dac0e..000000000 --- a/src/classes/com/sun/opengl/util/texture/awt/AWTTextureReader.java +++ /dev/null @@ -1,968 +0,0 @@ -/* - * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * - Redistribution of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * - Redistribution in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * Neither the name of Sun Microsystems, Inc. or the names of - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * This software is provided "AS IS," without a warranty of any kind. ALL - * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, - * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A - * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN - * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR - * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR - * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR - * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR - * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE - * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, - * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF - * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. - * - * You acknowledge that this software is not designed or intended for use - * in the design, construction, operation or maintenance of any nuclear - * facility. - * - * Sun gratefully acknowledges that this software was originally authored - * and developed by Kenneth Bradley Russell and Christopher John Kline. - */ - -package com.sun.opengl.util.texture.awt; - -import java.awt.image.BufferedImage; - -import java.io.*; -import java.net.*; -import java.nio.*; -import java.util.*; -import javax.imageio.*; - -import javax.media.opengl.*; -import javax.media.opengl.glu.*; -import com.sun.opengl.impl.Debug; -import com.sun.opengl.util.io.*; -import com.sun.opengl.util.texture.*; -import com.sun.opengl.util.texture.spi.*; - -/** <P> Provides input and output facilities for both loading OpenGL - textures from disk and streams as well as writing textures already - in memory back to disk. </P> - - <P> The TextureIO class supports an arbitrary number of plug-in - readers and writers via TextureProviders and TextureWriters. - TextureProviders know how to produce TextureData objects from - files, InputStreams and URLs. TextureWriters know how to write - TextureData objects to disk in various file formats. The - TextureData class represents the raw data of the texture before it - has been converted to an OpenGL texture object. The Texture class - represents the OpenGL texture object and provides easy facilities - for using the texture. </P> - - <P> There are several built-in TextureProviders and TextureWriters - supplied with the TextureIO implementation. The most basic - provider uses the platform's Image I/O facilities to read in a - BufferedImage and convert it to a texture. This is the baseline - provider and is registered so that it is the last one consulted. - All others are asked first to open a given file. </P> - - <P> There are three other providers registered by default as of - the time of this writing. One handles SGI RGB (".sgi", ".rgb") - images from both files and streams. One handles DirectDraw Surface - (".dds") images read from files, though can not read these images - from streams. One handles Targa (".tga") images read from both - files and streams. These providers are executed in an arbitrary - order. Some of these providers require the file's suffix to either - be specified via the newTextureData methods or for the file to be - named with the appropriate suffix. In general a file suffix should - be provided to the newTexture and newTextureData methods if at all - possible. </P> - - <P> Note that additional TextureProviders, if reading images from - InputStreams, must use the mark()/reset() methods on InputStream - when probing for e.g. magic numbers at the head of the file to - make sure not to disturb the state of the InputStream for - downstream TextureProviders. </P> - - <P> There are analogous TextureWriters provided for writing - textures back to disk if desired. As of this writing, there are - four TextureWriters registered by default: one for Targa files, - one for SGI RGB files, one for DirectDraw surface (.dds) files, - and one for ImageIO-supplied formats such as .jpg and .png. Some - of these writers have certain limitations such as only being able - to write out textures stored in GL_RGB or GL_RGBA format. The DDS - writer supports fetching and writing to disk of texture data in - DXTn compressed format. Whether this will occur is dependent on - whether the texture's internal format is one of the DXTn - compressed formats and whether the target file is .dds format. -*/ - -public class AWTTextureReader { - private static final boolean DEBUG = Debug.debug("TextureReader"); - - // For manually disabling the use of the texture rectangle - // extensions so you know the texture target is GL_TEXTURE_2D; this - // is useful for shader writers (thanks to Chris Campbell for this - // observation) - private static boolean texRectEnabled = true; - - //---------------------------------------------------------------------- - // methods that *do not* require a current context - // These methods assume RGB or RGBA textures. - // Some texture providers may not recognize the file format unless - // the fileSuffix is specified, so it is strongly recommended to - // specify it wherever it is known. - // Some texture providers may also only support one kind of input, - // i.e., reading from a file as opposed to a stream. - - /** - * Creates a TextureData from the given file. Does no OpenGL work. - * - * @param file the file from which to read the texture data - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @return the texture data from the file, or null if none of the - * registered texture providers could read the file - * @throws IOException if an error occurred while reading the file - */ - public static TextureData newTextureData(File file, - boolean mipmap, - String fileSuffix) throws IOException { - if (fileSuffix == null) { - fileSuffix = FileUtil.getFileSuffix(file); - } - return newTextureDataImpl(file, 0, 0, mipmap, fileSuffix); - } - - /** - * Creates a TextureData from the given stream. Does no OpenGL work. - * - * @param stream the stream from which to read the texture data - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @return the texture data from the stream, or null if none of the - * registered texture providers could read the stream - * @throws IOException if an error occurred while reading the stream - */ - public static TextureData newTextureData(InputStream stream, - boolean mipmap, - String fileSuffix) throws IOException { - return newTextureDataImpl(stream, 0, 0, mipmap, fileSuffix); - } - - /** - * Creates a TextureData from the given URL. Does no OpenGL work. - * - * @param url the URL from which to read the texture data - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @return the texture data from the URL, or null if none of the - * registered texture providers could read the URL - * @throws IOException if an error occurred while reading the URL - */ - public static TextureData newTextureData(URL url, - boolean mipmap, - String fileSuffix) throws IOException { - if (fileSuffix == null) { - fileSuffix = FileUtil.getFileSuffix(url.getPath()); - } - return newTextureDataImpl(url, 0, 0, mipmap, fileSuffix); - } - - /** - * Creates a TextureData from the given BufferedImage. Does no - * OpenGL work. - * - * @param image the BufferedImage containing the texture data - * @param mipmap whether mipmaps should be produced for this - * texture by autogenerating them - * @return the texture data from the image - */ - public static TextureData newTextureData(BufferedImage image, - boolean mipmap) { - return newTextureDataImpl(image, 0, 0, mipmap); - } - - //---------------------------------------------------------------------- - // These methods make no assumption about the OpenGL internal format - // or pixel format of the texture; they must be specified by the - // user. It is not allowed to supply 0 (indicating no preference) - // for either the internalFormat or the pixelFormat; - // IllegalArgumentException will be thrown in this case. - - /** - * Creates a TextureData from the given file, using the specified - * OpenGL internal format and pixel format for the texture which - * will eventually result. The internalFormat and pixelFormat must - * be specified and may not be zero; to use default values, use the - * variant of this method which does not take these arguments. Does - * no OpenGL work. - * - * @param file the file from which to read the texture data - * @param internalFormat the OpenGL internal format of the texture - * which will eventually result from the TextureData - * @param pixelFormat the OpenGL pixel format of the texture - * which will eventually result from the TextureData - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @return the texture data from the file, or null if none of the - * registered texture providers could read the file - * @throws IllegalArgumentException if either internalFormat or - * pixelFormat was 0 - * @throws IOException if an error occurred while reading the file - */ - public static TextureData newTextureData(File file, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException, IllegalArgumentException { - if ((internalFormat == 0) || (pixelFormat == 0)) { - throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); - } - - if (fileSuffix == null) { - fileSuffix = FileUtil.getFileSuffix(file); - } - - return newTextureDataImpl(file, internalFormat, pixelFormat, mipmap, fileSuffix); - } - - /** - * Creates a TextureData from the given stream, using the specified - * OpenGL internal format and pixel format for the texture which - * will eventually result. The internalFormat and pixelFormat must - * be specified and may not be zero; to use default values, use the - * variant of this method which does not take these arguments. Does - * no OpenGL work. - * - * @param stream the stream from which to read the texture data - * @param internalFormat the OpenGL internal format of the texture - * which will eventually result from the TextureData - * @param pixelFormat the OpenGL pixel format of the texture - * which will eventually result from the TextureData - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @return the texture data from the stream, or null if none of the - * registered texture providers could read the stream - * @throws IllegalArgumentException if either internalFormat or - * pixelFormat was 0 - * @throws IOException if an error occurred while reading the stream - */ - public static TextureData newTextureData(InputStream stream, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException, IllegalArgumentException { - if ((internalFormat == 0) || (pixelFormat == 0)) { - throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); - } - - return newTextureDataImpl(stream, internalFormat, pixelFormat, mipmap, fileSuffix); - } - - /** - * Creates a TextureData from the given URL, using the specified - * OpenGL internal format and pixel format for the texture which - * will eventually result. The internalFormat and pixelFormat must - * be specified and may not be zero; to use default values, use the - * variant of this method which does not take these arguments. Does - * no OpenGL work. - * - * @param url the URL from which to read the texture data - * @param internalFormat the OpenGL internal format of the texture - * which will eventually result from the TextureData - * @param pixelFormat the OpenGL pixel format of the texture - * which will eventually result from the TextureData - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @return the texture data from the URL, or null if none of the - * registered texture providers could read the URL - * @throws IllegalArgumentException if either internalFormat or - * pixelFormat was 0 - * @throws IOException if an error occurred while reading the URL - */ - public static TextureData newTextureData(URL url, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException, IllegalArgumentException { - if ((internalFormat == 0) || (pixelFormat == 0)) { - throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); - } - - if (fileSuffix == null) { - fileSuffix = FileUtil.getFileSuffix(url.getPath()); - } - - return newTextureDataImpl(url, internalFormat, pixelFormat, mipmap, fileSuffix); - } - - /** - * Creates a TextureData from the given BufferedImage, using the - * specified OpenGL internal format and pixel format for the texture - * which will eventually result. The internalFormat and pixelFormat - * must be specified and may not be zero; to use default values, use - * the variant of this method which does not take these - * arguments. Does no OpenGL work. - * - * @param image the BufferedImage containing the texture data - * @param internalFormat the OpenGL internal format of the texture - * which will eventually result from the TextureData - * @param pixelFormat the OpenGL pixel format of the texture - * which will eventually result from the TextureData - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @return the texture data from the image - * @throws IllegalArgumentException if either internalFormat or - * pixelFormat was 0 - */ - public static TextureData newTextureData(BufferedImage image, - int internalFormat, - int pixelFormat, - boolean mipmap) throws IllegalArgumentException { - if ((internalFormat == 0) || (pixelFormat == 0)) { - throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); - } - - return newTextureDataImpl(image, internalFormat, pixelFormat, mipmap); - } - - //---------------------------------------------------------------------- - // methods that *do* require a current context - // - - /** - * Creates an OpenGL texture object from the specified TextureData - * using the current OpenGL context. - * - * @param data the texture data to turn into an OpenGL texture - * @throws GLException if no OpenGL context is current or if an - * OpenGL error occurred - * @throws IllegalArgumentException if the passed TextureData was null - */ - public static Texture newTexture(TextureData data) throws GLException, IllegalArgumentException { - if (data == null) { - throw new IllegalArgumentException("Null TextureData"); - } - return new Texture(data); - } - - /** - * Creates an OpenGL texture object from the specified file using - * the current OpenGL context. - * - * @param file the file from which to read the texture data - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @throws IOException if an error occurred while reading the file - * @throws GLException if no OpenGL context is current or if an - * OpenGL error occurred - */ - public static Texture newTexture(File file, boolean mipmap) throws IOException, GLException { - TextureData data = newTextureData(file, mipmap, FileUtil.getFileSuffix(file)); - Texture texture = newTexture(data); - data.flush(); - return texture; - } - - /** - * Creates an OpenGL texture object from the specified stream using - * the current OpenGL context. - * - * @param stream the stream from which to read the texture data - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @throws IOException if an error occurred while reading the stream - * @throws GLException if no OpenGL context is current or if an - * OpenGL error occurred - */ - public static Texture newTexture(InputStream stream, boolean mipmap, String fileSuffix) throws IOException, GLException { - TextureData data = newTextureData(stream, mipmap, fileSuffix); - Texture texture = newTexture(data); - data.flush(); - return texture; - } - - /** - * Creates an OpenGL texture object from the specified URL using the - * current OpenGL context. - * - * @param url the URL from which to read the texture data - * @param mipmap whether mipmaps should be produced for this - * texture either by autogenerating them or - * reading them from the file. Some file formats - * support multiple mipmaps in a single file in - * which case those mipmaps will be used rather - * than generating them. - * @param fileSuffix the suffix of the file name to be used as a - * hint of the file format to the underlying - * texture provider, or null if none and should be - * auto-detected (some texture providers do not - * support this) - * @throws IOException if an error occurred while reading the URL - * @throws GLException if no OpenGL context is current or if an - * OpenGL error occurred - */ - public static Texture newTexture(URL url, boolean mipmap, String fileSuffix) throws IOException, GLException { - if (fileSuffix == null) { - fileSuffix = FileUtil.getFileSuffix(url.getPath()); - } - TextureData data = newTextureData(url, mipmap, fileSuffix); - Texture texture = newTexture(data); - data.flush(); - return texture; - } - - /** - * Creates an OpenGL texture object from the specified BufferedImage - * using the current OpenGL context. - * - * @param image the BufferedImage from which to read the texture data - * @param mipmap whether mipmaps should be produced for this - * texture by autogenerating them - * @throws GLException if no OpenGL context is current or if an - * OpenGL error occurred - */ - public static Texture newTexture(BufferedImage image, boolean mipmap) throws GLException { - TextureData data = newTextureData(image, mipmap); - Texture texture = newTexture(data); - data.flush(); - return texture; - } - - /** - * Creates an OpenGL texture object associated with the given OpenGL - * texture target using the current OpenGL context. The texture has - * no initial data. This is used, for example, to construct cube - * maps out of multiple TextureData objects. - * - * @throws GLException if no OpenGL context is current or if an - * OpenGL error occurred - */ - public static Texture newTexture(int target) throws GLException { - return new Texture(target); - } - - //---------------------------------------------------------------------- - // SPI support - // - - /** Adds a TextureProvider to support reading of a new file - format. */ - public static void addTextureProvider(TextureProvider provider) { - // Must always add at the front so the ImageIO provider is last, - // so we don't accidentally use it instead of a user's possibly - // more optimal provider - textureProviders.add(0, provider); - } - - //--------------------------------------------------------------------------- - // Global disabling of texture rectangle extension - // - - /** Toggles the use of the GL_ARB_texture_rectangle extension by the - TextureIO classes. By default, on hardware supporting this - extension, the TextureIO classes may use the - GL_ARB_texture_rectangle extension for non-power-of-two - textures. (If the hardware supports the - GL_ARB_texture_non_power_of_two extension, that one is - preferred.) In some situations, for example when writing - shaders, it is advantageous to force the texture target to - always be GL_TEXTURE_2D in order to have one version of the - shader, even at the expense of texture memory in the case where - NPOT textures are not supported. This method allows the use of - the GL_ARB_texture_rectangle extension to be turned off globally - for this purpose. The default is that the use of the extension - is enabled. */ - public static void setTexRectEnabled(boolean enabled) { - texRectEnabled = enabled; - } - - /** Indicates whether the GL_ARB_texture_rectangle extension is - allowed to be used for non-power-of-two textures; see {@link - #setTexRectEnabled setTexRectEnabled}. */ - public static boolean isTexRectEnabled() { - return texRectEnabled; - } - - //---------------------------------------------------------------------- - // Internals only below this point - // - - private static List/*<TextureProvider>*/ textureProviders = new ArrayList/*<TextureProvider>*/(); - private static List/*<TextureWriter>*/ textureWriters = new ArrayList/*<TextureWriter>*/(); - - static { - // ImageIO provider, the fall-back, must be the first one added - addTextureProvider(new IIOTextureProvider()); - - // Other special-case providers - addTextureProvider(new DDSTextureProvider()); - addTextureProvider(new SGITextureProvider()); - addTextureProvider(new TGATextureProvider()); - } - - // Implementation methods - private static TextureData newTextureDataImpl(File file, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - if (file == null) { - throw new IOException("File was null"); - } - - fileSuffix = toLowerCase(fileSuffix); - - for (Iterator iter = textureProviders.iterator(); iter.hasNext(); ) { - TextureProvider provider = (TextureProvider) iter.next(); - TextureData data = provider.newTextureData(file, - internalFormat, - pixelFormat, - mipmap, - fileSuffix); - if (data != null) { - return data; - } - } - - throw new IOException("No suitable reader for given file"); - } - - private static TextureData newTextureDataImpl(InputStream stream, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - if (stream == null) { - throw new IOException("Stream was null"); - } - - fileSuffix = toLowerCase(fileSuffix); - - // Note: use of BufferedInputStream works around 4764639/4892246 - if (!(stream instanceof BufferedInputStream)) { - stream = new BufferedInputStream(stream); - } - - for (Iterator iter = textureProviders.iterator(); iter.hasNext(); ) { - TextureProvider provider = (TextureProvider) iter.next(); - TextureData data = provider.newTextureData(stream, - internalFormat, - pixelFormat, - mipmap, - fileSuffix); - if (data != null) { - return data; - } - } - - throw new IOException("No suitable reader for given stream"); - } - - private static TextureData newTextureDataImpl(URL url, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - if (url == null) { - throw new IOException("URL was null"); - } - - fileSuffix = toLowerCase(fileSuffix); - - for (Iterator iter = textureProviders.iterator(); iter.hasNext(); ) { - TextureProvider provider = (TextureProvider) iter.next(); - TextureData data = provider.newTextureData(url, - internalFormat, - pixelFormat, - mipmap, - fileSuffix); - if (data != null) { - return data; - } - } - - throw new IOException("No suitable reader for given URL"); - } - - private static TextureData newTextureDataImpl(BufferedImage image, - int internalFormat, - int pixelFormat, - boolean mipmap) { - return new AWTTextureData(internalFormat, pixelFormat, mipmap, image); - } - - //---------------------------------------------------------------------- - // Base provider - used last - static class IIOTextureProvider implements TextureProvider { - public TextureData newTextureData(File file, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - BufferedImage img = ImageIO.read(file); - if (img == null) { - return null; - } - if (DEBUG) { - System.out.println("TextureIO.newTextureData(): BufferedImage type for " + file + " = " + - img.getType()); - } - return new AWTTextureData(internalFormat, pixelFormat, mipmap, img); - } - - public TextureData newTextureData(InputStream stream, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - BufferedImage img = ImageIO.read(stream); - if (img == null) { - return null; - } - if (DEBUG) { - System.out.println("TextureIO.newTextureData(): BufferedImage type for stream = " + - img.getType()); - } - return new AWTTextureData(internalFormat, pixelFormat, mipmap, img); - } - - public TextureData newTextureData(URL url, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - InputStream stream = url.openStream(); - try { - return newTextureData(stream, internalFormat, pixelFormat, mipmap, fileSuffix); - } finally { - stream.close(); - } - } - } - - //---------------------------------------------------------------------- - // DDS provider -- supports files only for now - static class DDSTextureProvider implements TextureProvider { - public TextureData newTextureData(File file, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - if (TextureUtil.DDS.equals(fileSuffix) || - TextureUtil.DDS.equals(FileUtil.getFileSuffix(file))) { - DDSImage image = DDSImage.read(file); - return newTextureData(image, internalFormat, pixelFormat, mipmap); - } - - return null; - } - - public TextureData newTextureData(InputStream stream, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - if (TextureUtil.DDS.equals(fileSuffix) || - DDSImage.isDDSImage(stream)) { - byte[] data = StreamUtil.readAll(stream); - ByteBuffer buf = ByteBuffer.wrap(data); - DDSImage image = DDSImage.read(buf); - return newTextureData(image, internalFormat, pixelFormat, mipmap); - } - - return null; - } - - public TextureData newTextureData(URL url, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - InputStream stream = new BufferedInputStream(url.openStream()); - try { - return newTextureData(stream, internalFormat, pixelFormat, mipmap, fileSuffix); - } finally { - stream.close(); - } - } - - private TextureData newTextureData(final DDSImage image, - int internalFormat, - int pixelFormat, - boolean mipmap) { - DDSImage.ImageInfo info = image.getMipMap(0); - if (pixelFormat == 0) { - switch (image.getPixelFormat()) { - case DDSImage.D3DFMT_R8G8B8: - pixelFormat = GL.GL_RGB; - break; - default: - pixelFormat = GL.GL_RGBA; - break; - } - } - if (info.isCompressed()) { - switch (info.getCompressionFormat()) { - case DDSImage.D3DFMT_DXT1: - internalFormat = GL.GL_COMPRESSED_RGB_S3TC_DXT1_EXT; - break; - case DDSImage.D3DFMT_DXT3: - internalFormat = GL.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; - break; - case DDSImage.D3DFMT_DXT5: - internalFormat = GL.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; - break; - default: - throw new RuntimeException("Unsupported DDS compression format \"" + - DDSImage.getCompressionFormatName(info.getCompressionFormat()) + "\""); - } - } - if (internalFormat == 0) { - switch (image.getPixelFormat()) { - case DDSImage.D3DFMT_R8G8B8: - pixelFormat = GL.GL_RGB; - break; - default: - pixelFormat = GL.GL_RGBA; - break; - } - } - TextureData.Flusher flusher = new TextureData.Flusher() { - public void flush() { - image.close(); - } - }; - TextureData data; - if (mipmap && image.getNumMipMaps() > 0) { - Buffer[] mipmapData = new Buffer[image.getNumMipMaps()]; - for (int i = 0; i < image.getNumMipMaps(); i++) { - mipmapData[i] = image.getMipMap(i).getData(); - } - data = new AWTTextureData(internalFormat, - info.getWidth(), - info.getHeight(), - 0, - pixelFormat, - GL.GL_UNSIGNED_BYTE, - info.isCompressed(), - true, - mipmapData, - flusher); - } else { - // Fix this up for the end user because we can't generate - // mipmaps for compressed textures - mipmap = false; - data = new AWTTextureData(internalFormat, - info.getWidth(), - info.getHeight(), - 0, - pixelFormat, - GL.GL_UNSIGNED_BYTE, - mipmap, - info.isCompressed(), - true, - info.getData(), - flusher); - } - return data; - } - } - - //---------------------------------------------------------------------- - // Base class for SGI RGB and TGA image providers - static abstract class StreamBasedTextureProvider implements TextureProvider { - public TextureData newTextureData(File file, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - InputStream inStream = new BufferedInputStream(new FileInputStream(file)); - try { - // The SGIImage and TGAImage implementations use InputStreams - // anyway so there isn't much point in having a separate code - // path for files - return newTextureData(inStream, - internalFormat, - pixelFormat, - mipmap, - ((fileSuffix != null) ? fileSuffix : FileUtil.getFileSuffix(file))); - } finally { - inStream.close(); - } - } - - public TextureData newTextureData(URL url, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - InputStream stream = new BufferedInputStream(url.openStream()); - try { - return newTextureData(stream, internalFormat, pixelFormat, mipmap, fileSuffix); - } finally { - stream.close(); - } - } - } - - //---------------------------------------------------------------------- - // SGI RGB image provider - static class SGITextureProvider extends StreamBasedTextureProvider { - public TextureData newTextureData(InputStream stream, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - if (TextureUtil.SGI.equals(fileSuffix) || - TextureUtil.SGI_RGB.equals(fileSuffix) || - SGIImage.isSGIImage(stream)) { - SGIImage image = SGIImage.read(stream); - if (pixelFormat == 0) { - pixelFormat = image.getFormat(); - } - if (internalFormat == 0) { - internalFormat = image.getFormat(); - } - return new AWTTextureData(internalFormat, - image.getWidth(), - image.getHeight(), - 0, - pixelFormat, - GL.GL_UNSIGNED_BYTE, - mipmap, - false, - false, - ByteBuffer.wrap(image.getData()), - null); - } - - return null; - } - } - - //---------------------------------------------------------------------- - // TGA (Targa) image provider - static class TGATextureProvider extends StreamBasedTextureProvider { - public TextureData newTextureData(InputStream stream, - int internalFormat, - int pixelFormat, - boolean mipmap, - String fileSuffix) throws IOException { - if (TextureUtil.TGA.equals(fileSuffix)) { - TGAImage image = TGAImage.read(stream); - if (pixelFormat == 0) { - pixelFormat = image.getGLFormat(); - } - if (internalFormat == 0) { - internalFormat = GL.GL_RGBA8; - } - return new AWTTextureData(internalFormat, - image.getWidth(), - image.getHeight(), - 0, - pixelFormat, - GL.GL_UNSIGNED_BYTE, - mipmap, - false, - false, - image.getData(), - null); - } - - return null; - } - } - //---------------------------------------------------------------------- - // Helper routines - // - - private static String toLowerCase(String arg) { - if (arg == null) { - return null; - } - - return arg.toLowerCase(); - } -} diff --git a/src/classes/com/sun/opengl/util/texture/awt/AWTTextureWriter.java b/src/classes/com/sun/opengl/util/texture/awt/AWTTextureWriter.java deleted file mode 100755 index 29082c27c..000000000 --- a/src/classes/com/sun/opengl/util/texture/awt/AWTTextureWriter.java +++ /dev/null @@ -1,500 +0,0 @@ -/* - * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * - Redistribution of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * - Redistribution in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * Neither the name of Sun Microsystems, Inc. or the names of - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * This software is provided "AS IS," without a warranty of any kind. ALL - * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, - * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A - * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN - * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR - * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR - * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR - * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR - * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE - * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, - * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF - * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. - * - * You acknowledge that this software is not designed or intended for use - * in the design, construction, operation or maintenance of any nuclear - * facility. - * - * Sun gratefully acknowledges that this software was originally authored - * and developed by Kenneth Bradley Russell and Christopher John Kline. - */ - -package com.sun.opengl.util.texture.awt; - -import java.awt.Graphics; -import java.awt.image.*; -import java.io.*; -import java.net.*; -import java.nio.*; -import java.util.*; -import javax.imageio.*; - -import javax.media.opengl.*; -import javax.media.opengl.glu.*; -import com.sun.opengl.impl.Debug; -import com.sun.opengl.util.awt.*; -import com.sun.opengl.util.io.*; -import com.sun.opengl.util.texture.*; -import com.sun.opengl.util.texture.spi.*; - -/** <P> Provides input and output facilities for both loading OpenGL - textures from disk and streams as well as writing textures already - in memory back to disk. </P> - - <P> The TextureIO class supports an arbitrary number of plug-in - readers and writers via TextureProviders and TextureWriters. - TextureProviders know how to produce TextureData objects from - files, InputStreams and URLs. TextureWriters know how to write - TextureData objects to disk in various file formats. The - TextureData class represents the raw data of the texture before it - has been converted to an OpenGL texture object. The Texture class - represents the OpenGL texture object and provides easy facilities - for using the texture. </P> - - <P> There are several built-in TextureProviders and TextureWriters - supplied with the TextureIO implementation. The most basic - provider uses the platform's Image I/O facilities to read in a - BufferedImage and convert it to a texture. This is the baseline - provider and is registered so that it is the last one consulted. - All others are asked first to open a given file. </P> - - <P> There are three other providers registered by default as of - the time of this writing. One handles SGI RGB (".sgi", ".rgb") - images from both files and streams. One handles DirectDraw Surface - (".dds") images read from files, though can not read these images - from streams. One handles Targa (".tga") images read from both - files and streams. These providers are executed in an arbitrary - order. Some of these providers require the file's suffix to either - be specified via the newTextureData methods or for the file to be - named with the appropriate suffix. In general a file suffix should - be provided to the newTexture and newTextureData methods if at all - possible. </P> - - <P> Note that additional TextureProviders, if reading images from - InputStreams, must use the mark()/reset() methods on InputStream - when probing for e.g. magic numbers at the head of the file to - make sure not to disturb the state of the InputStream for - downstream TextureProviders. </P> - - <P> There are analogous TextureWriters provided for writing - textures back to disk if desired. As of this writing, there are - four TextureWriters registered by default: one for Targa files, - one for SGI RGB files, one for DirectDraw surface (.dds) files, - and one for ImageIO-supplied formats such as .jpg and .png. Some - of these writers have certain limitations such as only being able - to write out textures stored in GL_RGB or GL_RGBA format. The DDS - writer supports fetching and writing to disk of texture data in - DXTn compressed format. Whether this will occur is dependent on - whether the texture's internal format is one of the DXTn - compressed formats and whether the target file is .dds format. -*/ - -public class AWTTextureWriter { - private static final boolean DEBUG = Debug.debug("TextureReader"); - - //---------------------------------------------------------------------- - // methods that *do not* require a current context - // These methods assume RGB or RGBA textures. - // Some texture providers may not recognize the file format unless - // the fileSuffix is specified, so it is strongly recommended to - // specify it wherever it is known. - // Some texture providers may also only support one kind of input, - // i.e., reading from a file as opposed to a stream. - - /** - * Writes the given texture to a file. The type of the file is - * inferred from its suffix. An OpenGL context must be current in - * order to fetch the texture data back from the OpenGL pipeline. - * This method causes the specified Texture to be bound to the - * GL_TEXTURE_2D state. If no suitable writer for the requested file - * format was found, throws an IOException. <P> - * - * Reasonable attempts are made to produce good results in the - * resulting images. The Targa, SGI and ImageIO writers produce - * results in the correct vertical orientation for those file - * formats. The DDS writer performs no vertical flip of the data, - * even in uncompressed mode. (It is impossible to perform such a - * vertical flip with compressed data.) Applications should keep - * this in mind when using this routine to save textures to disk for - * later re-loading. <P> - * - * Any mipmaps for the specified texture are currently discarded - * when it is written to disk, regardless of whether the underlying - * file format supports multiple mipmaps in a given file. - * - * @throws IOException if an error occurred during writing or no - * suitable writer was found - * @throws GLException if no OpenGL context was current or an - * OpenGL-related error occurred - */ - public static void write(Texture texture, File file) throws IOException, GLException { - if (texture.getTarget() != GL.GL_TEXTURE_2D) { - throw new GLException("Only GL_TEXTURE_2D textures are supported"); - } - - // First fetch the texture data - GL _gl = GLU.getCurrentGL(); - if(!_gl.isGL2()) { - throw new GLException("Only GL2 supports fetching compressed images, GL: "+_gl); - } - GL2 gl = _gl.getGL2(); - - texture.bind(); - int internalFormat = glGetTexLevelParameteri(gl, GL.GL_TEXTURE_2D, 0, GL2.GL_TEXTURE_INTERNAL_FORMAT); - int width = glGetTexLevelParameteri(gl, GL.GL_TEXTURE_2D, 0, GL2.GL_TEXTURE_WIDTH); - int height = glGetTexLevelParameteri(gl, GL.GL_TEXTURE_2D, 0, GL2.GL_TEXTURE_HEIGHT); - int border = glGetTexLevelParameteri(gl, GL.GL_TEXTURE_2D, 0, GL2.GL_TEXTURE_BORDER); - TextureData data = null; - if (internalFormat == GL.GL_COMPRESSED_RGB_S3TC_DXT1_EXT || - internalFormat == GL.GL_COMPRESSED_RGBA_S3TC_DXT1_EXT || - internalFormat == GL.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT || - internalFormat == GL.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT) { - // Fetch using glGetCompressedTexImage - int size = glGetTexLevelParameteri(gl, GL.GL_TEXTURE_2D, 0, GL2.GL_TEXTURE_COMPRESSED_IMAGE_SIZE); - ByteBuffer res = ByteBuffer.allocate(size); - gl.glGetCompressedTexImage(GL.GL_TEXTURE_2D, 0, res); - data = new AWTTextureData(internalFormat, width, height, border, internalFormat, GL.GL_UNSIGNED_BYTE, - false, true, true, res, null); - } else { - int bytesPerPixel = 0; - int fetchedFormat = 0; - switch (internalFormat) { - case GL.GL_RGB: - case GL2.GL_BGR: - case GL.GL_RGB8: - bytesPerPixel = 3; - fetchedFormat = GL.GL_RGB; - break; - case GL.GL_RGBA: - case GL2.GL_BGRA: - case GL2.GL_ABGR_EXT: - case GL.GL_RGBA8: - bytesPerPixel = 4; - fetchedFormat = GL.GL_RGBA; - break; - default: - throw new IOException("Unsupported texture internal format 0x" + Integer.toHexString(internalFormat)); - } - - // Fetch using glGetTexImage - int packAlignment = glGetInteger(GL.GL_PACK_ALIGNMENT); - int packRowLength = glGetInteger(GL2.GL_PACK_ROW_LENGTH); - int packSkipRows = glGetInteger(GL2.GL_PACK_SKIP_ROWS); - int packSkipPixels = glGetInteger(GL2.GL_PACK_SKIP_PIXELS); - int packSwapBytes = glGetInteger(GL2.GL_PACK_SWAP_BYTES); - - gl.glPixelStorei(GL.GL_PACK_ALIGNMENT, 1); - gl.glPixelStorei(GL2.GL_PACK_ROW_LENGTH, 0); - gl.glPixelStorei(GL2.GL_PACK_SKIP_ROWS, 0); - gl.glPixelStorei(GL2.GL_PACK_SKIP_PIXELS, 0); - gl.glPixelStorei(GL2.GL_PACK_SWAP_BYTES, 0); - - ByteBuffer res = ByteBuffer.allocate((width + (2 * border)) * - (height + (2 * border)) * - bytesPerPixel); - if (DEBUG) { - System.out.println("Allocated buffer of size " + res.remaining() + " for fetched image (" + - ((fetchedFormat == GL.GL_RGB) ? "GL_RGB" : "GL_RGBA") + ")"); - } - gl.glGetTexImage(GL.GL_TEXTURE_2D, 0, fetchedFormat, GL.GL_UNSIGNED_BYTE, res); - - gl.glPixelStorei(GL.GL_PACK_ALIGNMENT, packAlignment); - gl.glPixelStorei(GL2.GL_PACK_ROW_LENGTH, packRowLength); - gl.glPixelStorei(GL2.GL_PACK_SKIP_ROWS, packSkipRows); - gl.glPixelStorei(GL2.GL_PACK_SKIP_PIXELS, packSkipPixels); - gl.glPixelStorei(GL2.GL_PACK_SWAP_BYTES, packSwapBytes); - - data = new AWTTextureData(internalFormat, width, height, border, fetchedFormat, GL.GL_UNSIGNED_BYTE, - false, false, false, res, null); - - if (DEBUG) { - System.out.println("data.getPixelFormat() = " + - ((data.getPixelFormat() == GL.GL_RGB) ? "GL_RGB" : "GL_RGBA")); - } - } - - for (Iterator iter = textureWriters.iterator(); iter.hasNext(); ) { - TextureWriter writer = (TextureWriter) iter.next(); - if (writer.write(file, data)) { - return; - } - } - - throw new IOException("No suitable texture writer found"); - } - - //---------------------------------------------------------------------- - // SPI support - // - - /** Adds a TextureWriter to support writing of a new file - format. */ - public static void addTextureWriter(TextureWriter writer) { - // Must always add at the front so the ImageIO writer is last, - // so we don't accidentally use it instead of a user's possibly - // more optimal writer - textureWriters.add(0, writer); - } - - //--------------------------------------------------------------------------- - // Global disabling of texture rectangle extension - // - - //---------------------------------------------------------------------- - // Internals only below this point - // - - private static List/*<TextureWriter>*/ textureWriters = new ArrayList/*<TextureWriter>*/(); - - static { - // ImageIO writer, the fall-back, must be the first one added - textureWriters.add(new IIOTextureWriter()); - - // Other special-case writers - addTextureWriter(new DDSTextureWriter()); - addTextureWriter(new SGITextureWriter()); - addTextureWriter(new TGATextureWriter()); - } - - //---------------------------------------------------------------------- - // ImageIO texture writer - // - static class IIOTextureWriter implements TextureWriter { - public boolean write(File file, - TextureData data) throws IOException { - int pixelFormat = data.getPixelFormat(); - int pixelType = data.getPixelType(); - if ((pixelFormat == GL.GL_RGB || - pixelFormat == GL.GL_RGBA) && - (pixelType == GL.GL_BYTE || - pixelType == GL.GL_UNSIGNED_BYTE)) { - // Convert TextureData to appropriate BufferedImage - // FIXME: almost certainly not obeying correct pixel order - BufferedImage image = new BufferedImage(data.getWidth(), data.getHeight(), - (pixelFormat == GL.GL_RGB) ? - BufferedImage.TYPE_3BYTE_BGR : - BufferedImage.TYPE_4BYTE_ABGR); - byte[] imageData = ((DataBufferByte) image.getRaster().getDataBuffer()).getData(); - ByteBuffer buf = (ByteBuffer) data.getBuffer(); - if (buf == null) { - buf = (ByteBuffer) data.getMipmapData()[0]; - } - buf.rewind(); - buf.get(imageData); - buf.rewind(); - - // Swizzle image components to be correct - if (pixelFormat == GL.GL_RGB) { - for (int i = 0; i < imageData.length; i += 3) { - byte red = imageData[i + 0]; - byte blue = imageData[i + 2]; - imageData[i + 0] = blue; - imageData[i + 2] = red; - } - } else { - for (int i = 0; i < imageData.length; i += 4) { - byte red = imageData[i + 0]; - byte green = imageData[i + 1]; - byte blue = imageData[i + 2]; - byte alpha = imageData[i + 3]; - imageData[i + 0] = alpha; - imageData[i + 1] = blue; - imageData[i + 2] = green; - imageData[i + 3] = red; - } - } - - // Flip image vertically for the user's convenience - ImageUtil.flipImageVertically(image); - - // Happened to notice that writing RGBA images to JPEGS is broken - if (TextureUtil.JPG.equals(FileUtil.getFileSuffix(file)) && - image.getType() == BufferedImage.TYPE_4BYTE_ABGR) { - BufferedImage tmpImage = new BufferedImage(image.getWidth(), image.getHeight(), - BufferedImage.TYPE_3BYTE_BGR); - Graphics g = tmpImage.getGraphics(); - g.drawImage(image, 0, 0, null); - g.dispose(); - image = tmpImage; - } - - return ImageIO.write(image, FileUtil.getFileSuffix(file), file); - } - - throw new IOException("ImageIO writer doesn't support this pixel format / type (only GL_RGB/A + bytes)"); - } - } - - //---------------------------------------------------------------------- - // DDS texture writer - // - static class DDSTextureWriter implements TextureWriter { - public boolean write(File file, - TextureData data) throws IOException { - if (TextureUtil.DDS.equals(FileUtil.getFileSuffix(file))) { - // See whether the DDS writer can handle this TextureData - int pixelFormat = data.getPixelFormat(); - int pixelType = data.getPixelType(); - if (pixelType != GL.GL_BYTE && - pixelType != GL.GL_UNSIGNED_BYTE) { - throw new IOException("DDS writer only supports byte / unsigned byte textures"); - } - - int d3dFormat = 0; - // FIXME: some of these are probably not completely correct and would require swizzling - switch (pixelFormat) { - case GL.GL_RGB: d3dFormat = DDSImage.D3DFMT_R8G8B8; break; - case GL.GL_RGBA: d3dFormat = DDSImage.D3DFMT_A8R8G8B8; break; - case GL.GL_COMPRESSED_RGB_S3TC_DXT1_EXT: d3dFormat = DDSImage.D3DFMT_DXT1; break; - case GL.GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: throw new IOException("RGBA DXT1 not yet supported"); - case GL.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: d3dFormat = DDSImage.D3DFMT_DXT3; break; - case GL.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: d3dFormat = DDSImage.D3DFMT_DXT5; break; - default: throw new IOException("Unsupported pixel format 0x" + Integer.toHexString(pixelFormat) + " by DDS writer"); - } - - ByteBuffer[] mipmaps = null; - if (data.getMipmapData() != null) { - mipmaps = new ByteBuffer[data.getMipmapData().length]; - for (int i = 0; i < mipmaps.length; i++) { - mipmaps[i] = (ByteBuffer) data.getMipmapData()[i]; - } - } else { - mipmaps = new ByteBuffer[] { (ByteBuffer) data.getBuffer() }; - } - - DDSImage image = DDSImage.createFromData(d3dFormat, - data.getWidth(), - data.getHeight(), - mipmaps); - image.write(file); - return true; - } - - return false; - } - } - - //---------------------------------------------------------------------- - // SGI (rgb) texture writer - // - static class SGITextureWriter implements TextureWriter { - public boolean write(File file, - TextureData data) throws IOException { - String fileSuffix = FileUtil.getFileSuffix(file); - if (TextureUtil.SGI.equals(fileSuffix) || - TextureUtil.SGI_RGB.equals(fileSuffix)) { - // See whether the SGI writer can handle this TextureData - int pixelFormat = data.getPixelFormat(); - int pixelType = data.getPixelType(); - if ((pixelFormat == GL.GL_RGB || - pixelFormat == GL.GL_RGBA) && - (pixelType == GL.GL_BYTE || - pixelType == GL.GL_UNSIGNED_BYTE)) { - ByteBuffer buf = ((data.getBuffer() != null) ? - (ByteBuffer) data.getBuffer() : - (ByteBuffer) data.getMipmapData()[0]); - byte[] bytes; - if (buf.hasArray()) { - bytes = buf.array(); - } else { - buf.rewind(); - bytes = new byte[buf.remaining()]; - buf.get(bytes); - buf.rewind(); - } - - SGIImage image = SGIImage.createFromData(data.getWidth(), - data.getHeight(), - (pixelFormat == GL.GL_RGBA), - bytes); - image.write(file, false); - return true; - } - - throw new IOException("SGI writer doesn't support this pixel format / type (only GL_RGB/A + bytes)"); - } - - return false; - } - } - - //---------------------------------------------------------------------- - // TGA (Targa) texture writer - - static class TGATextureWriter implements TextureWriter { - public boolean write(File file, - TextureData data) throws IOException { - if (TextureUtil.TGA.equals(FileUtil.getFileSuffix(file))) { - // See whether the TGA writer can handle this TextureData - int pixelFormat = data.getPixelFormat(); - int pixelType = data.getPixelType(); - if ((pixelFormat == GL.GL_RGB || - pixelFormat == GL.GL_RGBA) && - (pixelType == GL.GL_BYTE || - pixelType == GL.GL_UNSIGNED_BYTE)) { - ByteBuffer buf = ((data.getBuffer() != null) ? - (ByteBuffer) data.getBuffer() : - (ByteBuffer) data.getMipmapData()[0]); - // Must reverse order of red and blue channels to get correct results - int skip = ((pixelFormat == GL.GL_RGB) ? 3 : 4); - for (int i = 0; i < buf.remaining(); i += skip) { - byte red = buf.get(i + 0); - byte blue = buf.get(i + 2); - buf.put(i + 0, blue); - buf.put(i + 2, red); - } - - TGAImage image = TGAImage.createFromData(data.getWidth(), - data.getHeight(), - (pixelFormat == GL.GL_RGBA), - false, - ((data.getBuffer() != null) ? - (ByteBuffer) data.getBuffer() : - (ByteBuffer) data.getMipmapData()[0])); - image.write(file); - return true; - } - - throw new IOException("TGA writer doesn't support this pixel format / type (only GL_RGB/A + bytes)"); - } - - return false; - } - } - - //---------------------------------------------------------------------- - // Helper routines - // - - private static int glGetInteger(int pname) { - int[] tmp = new int[1]; - GL gl = GLU.getCurrentGL(); - gl.glGetIntegerv(pname, tmp, 0); - return tmp[0]; - } - - private static int glGetTexLevelParameteri(GL2 gl, int target, int level, int pname) { - int[] tmp = new int[1]; - gl.glGetTexLevelParameteriv(target, 0, pname, tmp, 0); - return tmp[0]; - } - -} |