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lodepng.c: applied patch from mainstream PR/170

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marks lodepng_convert_rgb() static and only available if
LODEPNG_COMPILE_ANCILLARY_CHUNKS is set.
This commit is contained in:
Ozkan Sezer 2022-07-20 23:24:24 +03:00
parent ec57aa9731
commit 22b9b3474c
1 changed files with 5 additions and 2 deletions
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7
Quake/lodepng.c
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@ -3595,6 +3595,9 @@ unsigned lodepng_convert(unsigned char* out, const unsigned char* in,
return error; return error;
} }
#ifdef LODEPNG_COMPILE_ENCODER
#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
/* Converts a single rgb color without alpha from one type to another, color bits truncated to /* Converts a single rgb color without alpha from one type to another, color bits truncated to
their bitdepth. In case of single channel (gray or palette), only the r channel is used. Slow their bitdepth. In case of single channel (gray or palette), only the r channel is used. Slow
@ -3602,7 +3605,7 @@ function, do not use to process all pixels of an image. Alpha channel not suppor
this is for bKGD, supporting alpha may prevent it from finding a color in the palette, from the this is for bKGD, supporting alpha may prevent it from finding a color in the palette, from the
specification it looks like bKGD should ignore the alpha values of the palette since it can use specification it looks like bKGD should ignore the alpha values of the palette since it can use
any palette index but doesn't have an alpha channel. Idem with ignoring color key. */ any palette index but doesn't have an alpha channel. Idem with ignoring color key. */
unsigned lodepng_convert_rgb( static unsigned lodepng_convert_rgb(
unsigned* r_out, unsigned* g_out, unsigned* b_out, unsigned* r_out, unsigned* g_out, unsigned* b_out,
unsigned r_in, unsigned g_in, unsigned b_in, unsigned r_in, unsigned g_in, unsigned b_in,
const LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in) { const LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in) {
@ -3652,7 +3655,7 @@ unsigned lodepng_convert_rgb(
return 0; return 0;
} }
#ifdef LODEPNG_COMPILE_ENCODER #endif /* LODEPNG_COMPILE_ANCILLARY_CHUNKS */
void lodepng_color_stats_init(LodePNGColorStats* stats) { void lodepng_color_stats_init(LodePNGColorStats* stats) {
/*stats*/ /*stats*/