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This commit is contained in:
minjaesong
2019-01-15 16:10:40 +09:00
parent 17b6738308
commit 6a343ae382
7 changed files with 79 additions and 27 deletions
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46
src/com/badlogic/gdx/graphics/PixmapIO2.java
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@@ -11,33 +11,33 @@ import java.io.OutputStream;
*/
public class PixmapIO2 {
public static void writeTGAHappy(FileHandle file, Pixmap pixmap) throws IOException {
// REMEMBER: to the GL's perspective, this game's FBOs are always Y-flipped. //
public static void writeTGAHappy(FileHandle file, Pixmap pixmap, boolean flipY) throws IOException {
OutputStream output = file.write(false);
try {
_writeTGA(output, pixmap, false);
_writeTGA(output, pixmap, false, flipY);
} finally {
StreamUtils.closeQuietly(output);
}
}
public static void writeTGA(FileHandle file, Pixmap pixmap) throws IOException {
public static void writeTGA(FileHandle file, Pixmap pixmap, boolean flipY) throws IOException {
OutputStream output = file.write(false);
try {
_writeTGA(output, pixmap, true);
_writeTGA(output, pixmap, true, flipY);
} finally {
StreamUtils.closeQuietly(output);
}
}
private static void _writeTGA(OutputStream out, Pixmap pixmap, Boolean verbatim) throws IOException {
private static void _writeTGA(OutputStream out, Pixmap pixmap, boolean verbatim, boolean flipY) throws IOException {
byte[] width = toShortLittle(pixmap.getWidth());
byte[] height = toShortLittle(pixmap.getHeight());
byte[] zero = toShortLittle(0);
byte[] zeroalpha = new byte[]{0,0,0,0};
out.write(0); // ID field: empty
out.write(0); // no colour map, but should be ignored anyway as it being unmapped RGB
out.write(2); // 2 means unmapped RGB
@@ -55,16 +55,17 @@ public class PixmapIO2 {
// 1. BGRA order
// 2. Y-Flipped but not X-Flipped
for (int y = pixmap.getHeight() - 1; y >= 0; y--) {
for (int x = 0; x < pixmap.getWidth(); x++) {
int color = pixmap.getPixel(x, y);
// if alpha == 0, write special value instead
if (verbatim && (color & 0xFF) == 0) {
out.write(zeroalpha);
if (!flipY) {
for (int y = pixmap.getHeight() - 1; y >= 0; y--) {
for (int x = 0; x < pixmap.getWidth(); x++) {
writeTga(x, y, verbatim, pixmap, out);
}
else {
out.write(RGBAtoBGRA(color));
}
}
else {
for (int y = 0; y < pixmap.getHeight(); y++) {
for (int x = 0; x < pixmap.getWidth(); x++) {
writeTga(x, y, verbatim, pixmap, out);
}
}
}
@@ -84,6 +85,19 @@ public class PixmapIO2 {
out.close();
}
private static byte[] zeroalpha = new byte[]{0,0,0,0};
private static void writeTga(int x, int y, boolean verbatim, Pixmap pixmap, OutputStream out) throws IOException {
int color = pixmap.getPixel(x, y);
// if alpha == 0, write special value instead
if (verbatim && (color & 0xFF) == 0) {
out.write(zeroalpha);
}
else {
out.write(RGBAtoBGRA(color));
}
}
private static byte[] toShortLittle(int i) {
return new byte[]{
(byte) (i & 0xFF),