1 files changed, 95 insertions, 0 deletions
diff --git a/gfx/qcms/fuzz/fuzz_targets/fuzz_target_qcms.rs b/gfx/qcms/fuzz/fuzz_targets/fuzz_target_qcms.rs
new file mode 100644
index 0000000000..57cd0e2dd8
--- /dev/null
+++ b/gfx/qcms/fuzz/fuzz_targets/fuzz_target_qcms.rs
@@ -0,0 +1,95 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+extern crate qcms;
+extern crate libc;
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use qcms::c_bindings::{qcms_profile, icSigRgbData, icSigCmykData, icSigGrayData, qcms_profile_is_bogus};
+use qcms::c_bindings::{qcms_profile_get_color_space, qcms_profile_get_rendering_intent, qcms_profile_from_memory, qcms_profile_release, qcms_profile_sRGB, qcms_transform_create};
+use qcms::c_bindings::{qcms_profile_precache_output_transform, qcms_transform_data, qcms_transform_release, qcms_enable_iccv4};
+
+use qcms::DataType::*;
+
+ unsafe fn transform(src_profile: *const qcms_profile, dst_profile: *mut qcms_profile, size: usize)
+ {
+   // qcms supports GRAY and RGB profiles as input, and RGB as output.
+ 
+   let src_color_space = qcms_profile_get_color_space(&*src_profile);
+   let mut src_type = if (size & 1) != 0 { RGBA8 } else { RGB8 };
+   if src_color_space == icSigGrayData {
+     src_type = if (size & 1) != 0 { GrayA8 } else { Gray8 };
+   } else if src_color_space == icSigCmykData {
+     src_type = CMYK;
+   } else if src_color_space != icSigRgbData {
+     return;
+   }
+ 
+   let dst_color_space = qcms_profile_get_color_space(&*dst_profile);
+   if dst_color_space != icSigRgbData {
+     return;
+   }
+   let dst_type = if (size & 2) != 0 { RGBA8 } else { RGB8 };
+ 
+   let intent = qcms_profile_get_rendering_intent(&*src_profile);
+   // Firefox calls this on the display profile to increase performance.
+   // Skip with low probability to increase coverage.
+   if (size % 15) != 0 {
+     qcms_profile_precache_output_transform(&mut *dst_profile);
+   }
+ 
+   let transform =
+     qcms_transform_create(&*src_profile, src_type, &*dst_profile, dst_type, intent);
+   if transform == std::ptr::null_mut() {
+     return;
+   }
+ 
+   const SRC_SIZE: usize = 36;
+   let src:[u8; SRC_SIZE] = [
+     0x7F, 0x7F, 0x7F, 0x00, 0x00, 0x7F, 0x7F, 0xFF, 0x7F, 0x10, 0x20, 0x30,
+     0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xB0, 0xBF, 0xEF, 0x6F,
+     0x3F, 0xC0, 0x9F, 0xE0, 0x90, 0xCF, 0x40, 0xAF, 0x0F, 0x01, 0x60, 0xF0,
+   ];
+   let mut dst: [u8; 36 * 4] = [0; 144]; // 4x in case of GRAY to RGBA
+ 
+   qcms_transform_data(&*transform, src.as_ptr() as *const libc::c_void, dst.as_mut_ptr() as *mut libc::c_void, (SRC_SIZE / src_type.bytes_per_pixel()) as usize);
+   qcms_transform_release(transform);
+ }
+ 
+ unsafe fn do_fuzz(data: &[u8])
+ {
+   let size = data.len();
+   qcms_enable_iccv4();
+ 
+   let profile = qcms_profile_from_memory(data.as_ptr() as *const libc::c_void, size);
+   if profile == std::ptr::null_mut() {
+     return;
+   }
+ 
+   let srgb_profile = qcms_profile_sRGB();
+   if srgb_profile == std::ptr::null_mut() {
+     qcms_profile_release(profile);
+     return;
+   }
+ 
+   transform(profile, srgb_profile, size);
+ 
+   // Firefox only checks the display (destination) profile.
+   if !qcms_profile_is_bogus(&mut *profile) {
+ 
+     transform(srgb_profile, profile, size);
+     let identity = qcms::Profile::new_XYZD50();
+     transform(&*identity, profile, size);
+   }
+   qcms_profile_release(profile);
+   qcms_profile_release(srgb_profile);
+ 
+   return;
+ }
+ 
+ 
+
+fuzz_target!(|data: &[u8]| {
+    unsafe { do_fuzz(data) }
+});