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miniz.h: fix PNG compression when pitch != w

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Gleb Mazovetskiy
2025-10-25 08:59:53 +01:00
committed by Sam Lantinga
parent 537e92b158
commit ac0915bdb5
1 changed files with 1 additions and 1 deletions
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src/video/miniz.h
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@@ -2987,7 +2987,7 @@ MINIZ_STATIC void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage
data_start = out_buf.m_size;
// compress image data
tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf, s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER);
for (y = 0; y < h; ++y) { tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH); tdefl_compress_buffer(pComp, (mz_uint8*)pImage + (flip ? (h - 1 - y) : y) * bpl, bpl, TDEFL_NO_FLUSH); }
for (y = 0; y < h; ++y) { tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH); tdefl_compress_buffer(pComp, (mz_uint8*)pImage + (flip ? (h - 1 - y) : y) * bpl, w * num_chans, TDEFL_NO_FLUSH); }
if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) != TDEFL_STATUS_DONE) { MZ_FREE(pComp); MZ_FREE(out_buf.m_pBuf); return NULL; }
// write IDAT size
data_size = out_buf.m_size-data_start;