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-rwxr-xr-xsrc/classes/com/sun/opengl/util/texture/Texture.java9
-rwxr-xr-xsrc/classes/com/sun/opengl/util/texture/TextureData.java79
2 files changed, 73 insertions, 15 deletions
diff --git a/src/classes/com/sun/opengl/util/texture/Texture.java b/src/classes/com/sun/opengl/util/texture/Texture.java
index 4339de6bf..a9511dc49 100755
--- a/src/classes/com/sun/opengl/util/texture/Texture.java
+++ b/src/classes/com/sun/opengl/util/texture/Texture.java
@@ -394,6 +394,10 @@ public class Texture {
(gl.isExtensionAvailable("GL_VERSION_1_4") ||
gl.isExtensionAvailable("GL_SGIS_generate_mipmap"));
+ // Indicate to the TextureData what functionality is available
+ data.setHaveEXTABGR(gl.isExtensionAvailable("GL_EXT_abgr"));
+ data.setHaveGL12(gl.isExtensionAvailable("GL_VERSION_1_2"));
+
// Note that automatic mipmap generation doesn't work for
// GL_ARB_texture_rectangle
if ((!isPowerOfTwo(imgWidth) || !isPowerOfTwo(imgHeight)) &&
@@ -813,9 +817,8 @@ public class Texture {
int dstx, int dsty,
int srcx, int srcy, int width, int height) throws GLException {
GL gl = GLU.getCurrentGL();
- if (gl.isExtensionAvailable("GL_EXT_abgr")) {
- data.setHaveEXTABGR(true);
- }
+ data.setHaveEXTABGR(gl.isExtensionAvailable("GL_EXT_abgr"));
+ data.setHaveGL12(gl.isExtensionAvailable("GL_VERSION_1_2"));
Buffer buffer = data.getBuffer();
if (buffer == null && data.getMipmapData() == null) {
diff --git a/src/classes/com/sun/opengl/util/texture/TextureData.java b/src/classes/com/sun/opengl/util/texture/TextureData.java
index 7a00cd71a..263cb2721 100755
--- a/src/classes/com/sun/opengl/util/texture/TextureData.java
+++ b/src/classes/com/sun/opengl/util/texture/TextureData.java
@@ -79,11 +79,13 @@ public class TextureData {
// Mechanism for lazily converting input BufferedImages with custom
// ColorModels to standard ones for uploading to OpenGL, as well as
- // backing off from the optimization of hoping that GL_EXT_abgr is
- // present
+ // 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),
@@ -269,9 +271,25 @@ public class TextureData {
/** 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() { return pixelFormat; }
+ 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() { return pixelType; }
+ public int getPixelType() {
+ if (imageForLazyCustomConversion != null) {
+ if (!((expectingEXTABGR && haveEXTABGR) ||
+ (expectingGL12 && haveGL12))) {
+ revertPixelFormatAndType();
+ }
+ }
+ 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. */
@@ -284,8 +302,9 @@ public class TextureData {
/** Returns the texture data, or null if it is specified as a set of mipmaps. */
public Buffer getBuffer() {
if (imageForLazyCustomConversion != null) {
- if (!expectingEXTABGR ||
- (expectingEXTABGR && !haveEXTABGR)) {
+ if (!((expectingEXTABGR && haveEXTABGR) ||
+ (expectingGL12 && haveGL12))) {
+ revertPixelFormatAndType();
// Must present the illusion to the end user that we are simply
// wrapping the input BufferedImage
createFromCustom(imageForLazyCustomConversion);
@@ -336,6 +355,13 @@ public class TextureData {
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
@@ -426,18 +452,24 @@ public class TextureData {
pixelType = GL.GL_UNSIGNED_INT_8_8_8_8_REV;
rowLength = scanlineStride;
alignment = 4;
+ expectingGL12 = true;
+ setupLazyCustomConversion(image);
break;
case BufferedImage.TYPE_INT_ARGB_PRE:
pixelFormat = GL.GL_BGRA;
pixelType = GL.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 = GL.GL_UNSIGNED_INT_8_8_8_8_REV;
rowLength = scanlineStride;
alignment = 4;
+ expectingGL12 = true;
+ setupLazyCustomConversion(image);
break;
case BufferedImage.TYPE_3BYTE_BGR:
{
@@ -486,12 +518,16 @@ public class TextureData {
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_BGRA;
pixelType = GL.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;
@@ -538,16 +574,17 @@ public class TextureData {
private void setupLazyCustomConversion(BufferedImage image) {
imageForLazyCustomConversion = image;
boolean hasAlpha = image.getColorModel().hasAlpha();
- pixelFormat = hasAlpha ? GL.GL_RGBA : GL.GL_RGB;
+ 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?
- // Don't use GL_UNSIGNED_INT for TYPE_INT_ARGB images
- boolean isIntRGBA = (image.getType() == BufferedImage.TYPE_INT_ARGB);
// Allow previously-selected pixelType (if any) to override that
// we can infer from the DataBuffer
DataBuffer data = image.getRaster().getDataBuffer();
- if (data instanceof DataBufferByte || isIntRGBA) {
+ 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");
@@ -573,8 +610,8 @@ public class TextureData {
boolean hasAlpha = image.getColorModel().hasAlpha();
ColorModel cm = null;
int dataBufferType = image.getRaster().getDataBuffer().getDataType();
- // Don't use integer components for TYPE_INT_ARGB images
- if (image.getType() == BufferedImage.TYPE_INT_ARGB) {
+ // Don't use integer components for packed int images
+ if (isPackedInt(image)) {
dataBufferType = DataBuffer.TYPE_BYTE;
}
if (dataBufferType == DataBuffer.TYPE_BYTE) {
@@ -608,6 +645,24 @@ public class TextureData {
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 int estimatedMemorySize(Buffer buffer) {
if (buffer == null) {
return 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 23:19:20 +0000