diff options
Diffstat (limited to 'source/pdf/pdf-function.c')
| -rw-r--r-- | source/pdf/pdf-function.c | 25 |
1 files changed, 4 insertions, 21 deletions
diff --git a/source/pdf/pdf-function.c b/source/pdf/pdf-function.c index 1969cbba..b182a85e 100644 --- a/source/pdf/pdf-function.c +++ b/source/pdf/pdf-function.c @@ -992,7 +992,6 @@ load_sample_func(fz_context *ctx, pdf_document *doc, pdf_function *func, pdf_obj /* read samples */ for (i = 0; i < samplecount; i++) { - unsigned int x; float s; if (fz_is_eof_bits(ctx, stream)) @@ -1005,26 +1004,10 @@ load_sample_func(fz_context *ctx, pdf_document *doc, pdf_function *func, pdf_obj case 4: s = fz_read_bits(ctx, stream, 4) / 15.0f; break; case 8: s = fz_read_byte(ctx, stream) / 255.0f; break; case 12: s = fz_read_bits(ctx, stream, 12) / 4095.0f; break; - case 16: - x = fz_read_byte(ctx, stream) << 8; - x |= fz_read_byte(ctx, stream); - s = x / 65535.0f; - break; - case 24: - x = fz_read_byte(ctx, stream) << 16; - x |= fz_read_byte(ctx, stream) << 8; - x |= fz_read_byte(ctx, stream); - s = x / 16777215.0f; - break; - case 32: - x = fz_read_byte(ctx, stream) << 24; - x |= fz_read_byte(ctx, stream) << 16; - x |= fz_read_byte(ctx, stream) << 8; - x |= fz_read_byte(ctx, stream); - s = x / 4294967295.0f; - break; - default: - fz_throw(ctx, FZ_ERROR_GENERIC, "sample stream bit depth %d unsupported", bps); + case 16: s = fz_read_uint16(ctx, stream) / 65535.0f; break; + case 24: s = fz_read_uint24(ctx, stream) / 16777215.0f; break; + case 32: s = fz_read_uint32(ctx, stream) / 4294967295.0f; break; + default: fz_throw(ctx, FZ_ERROR_GENERIC, "sample stream bit depth %d unsupported", bps); } func->u.sa.samples[i] = s; |