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Merge branch 'PHP-8.3'

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* PHP-8.3:
  Fix GH-10614: imagerotate will turn the picture all black, when rotated 90
This commit is contained in:
Niels Dossche 2024-01-26 18:16:29 +01:00
commit b06fedb41d
3 changed files with 96 additions and 3 deletions
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6
ext/gd/libgd/gd_rotate.c
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@ -216,7 +216,7 @@ gdImagePtr gdImageRotate90 (gdImagePtr src, int ignoretransparent)
if (dst != NULL) {
int old_blendmode = dst->alphaBlendingFlag;
dst->alphaBlendingFlag = 0;
dst->saveAlphaFlag = 1;
dst->transparent = src->transparent;
gdImagePaletteCopy (dst, src);
@ -263,7 +263,7 @@ gdImagePtr gdImageRotate180 (gdImagePtr src, int ignoretransparent)
if (dst != NULL) {
int old_blendmode = dst->alphaBlendingFlag;
dst->alphaBlendingFlag = 0;
dst->saveAlphaFlag = 1;
dst->transparent = src->transparent;
gdImagePaletteCopy (dst, src);
@ -311,7 +311,7 @@ gdImagePtr gdImageRotate270 (gdImagePtr src, int ignoretransparent)
if (dst != NULL) {
int old_blendmode = dst->alphaBlendingFlag;
dst->alphaBlendingFlag = 0;
dst->saveAlphaFlag = 1;
dst->transparent = src->transparent;
gdImagePaletteCopy (dst, src);

93
ext/gd/tests/gh10614.phpt Normal file
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@ -0,0 +1,93 @@
--TEST--
GH-10614 (imagerotate will turn the picture all black, when rotated 90)
--EXTENSIONS--
gd
--SKIPIF--
<?php
if (!GD_BUNDLED && version_compare(GD_VERSION, '2.3.4', '>=')) die("skip test requires GD 2.3.4 or older");
?>
--FILE--
<?php
$input = imagecreatefrompng(__DIR__ . '/gh10614.png');
for ($angle = 0; $angle <= 270; $angle += 90) {
echo "--- Angle $angle ---\n";
$output = imagerotate($input, $angle, 0);
for ($i = 0; $i < 4; $i++) {
for ($j = 0; $j < 4; $j++) {
var_dump(dechex(imagecolorat($output, $i, $j)));
}
}
}
?>
--EXPECT--
--- Angle 0 ---
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
--- Angle 90 ---
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
--- Angle 180 ---
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
string(1) "0"
--- Angle 270 ---
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"
string(1) "0"
string(1) "0"
string(8) "7f000000"
string(8) "7f000000"

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