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avcodec/hapdec : use gray8 for HapAlphaOnly decoding instead of RGB0

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This commit is contained in:
Martin Vignali 2017-11-25 19:46:48 +01:00
parent 07e427aa56
commit 21c06c4095
2 changed files with 7 additions and 4 deletions
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1
libavcodec/hap.h
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@ -84,6 +84,7 @@ typedef struct HapContext {
int texture_count; /* 2 for HAQA, 1 for other version */
int texture_section_size; /* size of the part of the texture section (for HAPQA) */
int uncompress_pix_size; /* nb of byte / pixel for the target picture */
/* Pointer to the selected compress or decompress function */
int (*tex_fun)(uint8_t *dst, ptrdiff_t stride, const uint8_t *block);

10
libavcodec/hapdec.c
View File

@ -300,10 +300,10 @@ static int decompress_texture_thread_internal(AVCodecContext *avctx, void *arg,
int off = y * w_block;
for (x = 0; x < w_block; x++) {
if (texture_num == 0) {
ctx->tex_fun(p + x * 16, frame->linesize[0],
ctx->tex_fun(p + x * 4 * ctx->uncompress_pix_size, frame->linesize[0],
d + (off + x) * ctx->tex_rat);
} else {
ctx->tex_fun2(p + x * 16, frame->linesize[0],
ctx->tex_fun2(p + x * 4 * ctx->uncompress_pix_size, frame->linesize[0],
d + (off + x) * ctx->tex_rat2);
}
}
@ -438,6 +438,7 @@ static av_cold int hap_init(AVCodecContext *avctx)
ff_texturedsp_init(&ctx->dxtc);
ctx->texture_count = 1;
ctx->uncompress_pix_size = 4;
switch (avctx->codec_tag) {
case MKTAG('H','a','p','1'):
@ -461,8 +462,9 @@ static av_cold int hap_init(AVCodecContext *avctx)
case MKTAG('H','a','p','A'):
texture_name = "RGTC1";
ctx->tex_rat = 8;
ctx->tex_fun = ctx->dxtc.rgtc1u_block;
avctx->pix_fmt = AV_PIX_FMT_RGB0;
ctx->tex_fun = ctx->dxtc.rgtc1u_gray_block;
avctx->pix_fmt = AV_PIX_FMT_GRAY8;
ctx->uncompress_pix_size = 1;
break;
case MKTAG('H','a','p','M'):
texture_name = "DXT5-YCoCg-scaled / RGTC1";