Rooba
/
oss-fuzz
mirror of https://github.com/google/oss-fuzz.git
1
1
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[qcms] pre-cache skipping (#1443)

This commit is contained in:
pdknsk 2018-05-25 05:29:04 +02:00 committed by Max Moroz
parent 13aca53072
commit 68960585b3
1 changed files with 10 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
projects/qcms/fuzz.cc
View File

@ -3,23 +3,26 @@
#include "qcms.h"
static void transform(qcms_profile* src_profile, qcms_profile* dst_profile,
int alpha) {
size_t size) {
// qcms supports GRAY and RGB profiles as input, and RGB as output.
uint32_t src_color_space = qcms_profile_get_color_space(src_profile);
qcms_data_type src_type = alpha & 1 ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
qcms_data_type src_type = size & 1 ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
if (src_color_space == icSigGrayData)
src_type = alpha & 1 ? QCMS_DATA_GRAYA_8 : QCMS_DATA_GRAY_8;
src_type = size & 1 ? QCMS_DATA_GRAYA_8 : QCMS_DATA_GRAY_8;
else if (src_color_space != icSigRgbData)
return;
uint32_t dst_color_space = qcms_profile_get_color_space(dst_profile);
if (dst_color_space != icSigRgbData)
return;
qcms_data_type dst_type = alpha & 2 ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
qcms_data_type dst_type = size & 2 ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
qcms_intent intent = qcms_profile_get_rendering_intent(src_profile);
qcms_profile_precache_output_transform(dst_profile);
// Firefox calls this on the display profile to increase performance.
// Skip with low probability to increase coverage.
if (size % 0x10)
qcms_profile_precache_output_transform(dst_profile);
qcms_transform* transform = qcms_transform_create(
src_profile, src_type, dst_profile, dst_type, intent);
@ -61,8 +64,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
return 0;
}
transform(profile, srgb_profile, size & 3);
transform(srgb_profile, profile, size & 3);
transform(profile, srgb_profile, size);
transform(srgb_profile, profile, size);
qcms_profile_release(profile);
qcms_profile_release(srgb_profile);