AuroraMiddleware/skia2
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11 Commits

Author SHA1 Message Date
mtklein
785a5b941a Clean up SkFloatBits 
- remove dead code
- rewrite float -> int converters

The strategy for the new converters is:
   - convert input to double
   - floor/ceil/round in double space
   - pin that double to [SK_MinS32, SK_MaxS32]
   - truncate that double to int32_t

This simpler strategy does not work:
   - floor/ceil/round in float space
   - pin that float to [SK_MinS32, SK_MaxS32]
   - truncate that float to int32_t

SK_MinS32 and SK_MaxS32 are not representable as floats:
they round to the nearest float, ±2^31, which makes the
pin insufficient for floats near SK_MinS32 (-2^31+1) or
SK_MaxS32 (+2^31-1).

float only has 24 bits of precision, and we need 31.
double can represent all integers up to 50-something bits.

An alternative is to pin in float to ±2147483520, the last
exactly representable float before SK_MaxS32 (127 too small).

Our tests test that we round as floor(x+0.5), which can
return different numbers than round(x) for negative x.
So this CL explicitly uses floor(x+0.5).

I've updated the tests with ±inf and ±NaN, and tried to
make them a little clearer, especially using SK_MinS32
instead of -SK_MaxS32.

I have not timed anything here.  I have never seen any of these
methods in a profile.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2012333003

Review-Url: https://codereview.chromium.org/2012333003
 2016-05-27 10:47:32 -07:00
caryclark
952538ed50 fix undefined signed shifts 
The expression (1 << 31) is technically undefined.

Fixed the undefined shift referenced by this bug and
a few friends.

R=reed@google.com
BUG=skia:2285
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1737363002

Review URL: https://codereview.chromium.org/1737363002
 2016-02-26 05:01:42 -08:00
reed
95dd17737d Revert[8] "move some public headers into private" 
This reverts commit fb28cd2b13.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1298833002
 2015-08-17 18:29:48 -07:00
reed
fb28cd2b13 Revert[7] "move some public headers into private" 
This reverts commit e02716908f.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1300523002
 2015-08-15 08:46:27 -07:00
reed
e02716908f Revert[6] "move some public headers into private" 
This reverts commit cc1229c9d5.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1295003002
 2015-08-15 07:28:34 -07:00
reed
cc1229c9d5 Revert "Revert[4] "move some public headers into private"" 
This reverts commit 33e00db73d.

BUG=skia:
TBR=
NOTREECHECKS=True

FAILED: /b/build/goma/gomacc ../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/components/user_manager/user_manager_test_support.fake_user_manager.o.d -DV8_DEPRECATION_WARNINGS -DCLD_VERSION=2 -D_FILE_OFFSET_BITS=64 -DCHROMIUM_BUILD -DCR_CLANG_REVISION=242792-1 -DCOMPONENT_BUILD -DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_ASH=1 -DUSE_PANGO=1 -DUSE_CAIRO=1 -DUSE_DEFAULT_RENDER_THEME=1 -DUSE_LIBJPEG_TURBO=1 -DUSE_X11=1 -DIMAGE_LOADER_EXTENSION=1 -DENABLE_WEBRTC=1 -DENABLE_MEDIA_ROUTER=1 -DUSE_PROPRIETARY_CODECS -DENABLE_PEPPER_CDMS -DENABLE_CONFIGURATION_POLICY -DENABLE_NOTIFICATIONS -DENABLE_HIDPI=1 -DENABLE_TOPCHROME_MD=1 -DUSE_UDEV -DDONT_EMBED_BUILD_METADATA -DDCHECK_ALWAYS_ON=1 -DFIELDTRIAL_TESTING_ENABLED -DENABLE_TASK_MANAGER=1 -DENABLE_EXTENSIONS=1 -DENABLE_PLUGINS=1 -DENABLE_SESSION_SERVICE=1 -DENABLE_THEMES=1 -DENABLE_AUTOFILL_DIALOG=1 -DENABLE_BACKGROUND=1 -DENABLE_GOOGLE_NOW=1 -DENABLE_PRINTING=1 -DENABLE_PRINT_PREVIEW=1 -DENABLE_SPELLCHECK=1 -DENABLE_CAPTIVE_PORTAL_DETECTION=1 -DENABLE_APP_LIST=1 -DENABLE_SUPERVISED_USERS=1 -DENABLE_MDNS=1 -DENABLE_SERVICE_DISCOVERY=1 -DV8_USE_EXTERNAL_STARTUP_DATA -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DSAFE_BROWSING_SERVICE -DGTEST_HAS_POSIX_RE=0 -DGTEST_LANG_CXX11=0 -DUNIT_TEST -DGTEST_HAS_RTTI=0 -DUSE_LIBPCI=1 -DUSE_OPENSSL=1 -DUSE_GLIB=1 -DUSE_NSS_CERTS=1 -DOS_CHROMEOS=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DWTF_USE_DYNAMIC_ANNOTATIONS=1 -D_DEBUG -D_GLIBCXX_DEBUG=1 -Igen -I../.. -I../../skia/config -I../../testing/gmock/include -I../../testing/gtest/include -Werror -pthread -fno-strict-aliasing -Wall -Wno-unused-parameter -Wno-missing-field-initializers -fvisibility=hidden -pipe -fPIC -Wno-reserved-user-defined-literal -Xclang -load -Xclang /b/build/slave/linux_chromeos/build/src/third_party/llvm-build/Release+Asserts/lib/libFindBadConstructs.so -Xclang -add-plugin -Xclang find-bad-constructs -Xclang -plugin-arg-find-bad-constructs -Xclang check-templates -fcolor-diagnostics -B/b/build/slave/linux_chromeos/build/src/third_party/binutils/Linux_x64/Release/bin -Wheader-hygiene -Wno-char-subscripts -Wno-unneeded-internal-declaration -Wno-covered-switch-default -Wstring-conversion -Wno-c++11-narrowing -Wno-deprecated-register -Wno-inconsistent-missing-override -Wno-shift-negative-value -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -m64 -march=x86-64 -O0 -g -funwind-tables -gsplit-dwarf -Wno-undefined-bool-conversion -Wno-tautological-undefined-compare -g0 -fno-exceptions -fno-rtti -fno-threadsafe-statics -fvisibility-inlines-hidden -Wsign-compare -std=gnu++11  -c ../../components/user_manager/fake_user_manager.cc -o obj/components/user_manager/user_manager_test_support.fake_user_manager.o
In file included from ../../components/user_manager/fake_user_manager.cc:5:
In file included from ../../components/user_manager/fake_user_manager.h:12:
In file included from ../../components/user_manager/user.h:14:
In file included from ../../components/user_manager/user_image/user_image.h:12:
In file included from ../../ui/gfx/image/image_skia.h:15:
In file included from ../../ui/gfx/image/image_skia_rep.h:8:
In file included from ../../third_party/skia/include/core/SkBitmap.h:11:
In file included from ../../third_party/skia/include/core/SkColor.h:11:
In file included from ../../third_party/skia/include/core/SkScalar.h:12:
../../third_party/skia/include/core/../private/SkFloatingPoint.h:13:10: fatal error: 'SkTypes.h' file not found
#include "SkTypes.h"

ninja -w dupbuild=err -C /b/build/slave/linux_chromeos/build/src/out/Debug accessibility_unittests accessibility_unittests_run app_list_unittests app_list_unittests_run app_shell_unittests app_shell_unittests_run ash_unittests ash_unittests_run aura_builder aura_unittests aura_unittests_run base_unittests base_unittests_run browser_tests browser_tests_run cacheinvalidation_unittests cacheinvalidation_unittests_run chromeos_unittests chromeos_unittests_run components_unittests components_unittests_run compositor_unittests compositor_unittests_run content_browsertests content_browsertests_run content_unittests content_unittests_run crypto_unittests crypto_unittests_run dbus_unittests device_unittests device_unittests_run display_unittests display_unittests_run events_unittests events_unittests_run extensions_browsertests extensions_browsertests_run extensions_unittests extensions_unittests_run gcm_unit_tests gcm_unit_tests_run gfx_unittests gfx_unittests_run google_apis_unittests google_apis_unittests_run gpu_unittests gpu_unittests_run interactive_ui_tests interactive_ui_tests_run ipc_tests ipc_tests_run jingle_unittests jingle_unittests_run media_unittests media_unittests_run message_center_unittests message_center_unittests_run midi_unittests midi_unittests_run nacl_helper_nonsfi_unittests nacl_loader_unittests nacl_loader_unittests_run net_unittests net_unittests_run ppapi_unittests printing_unittests printing_unittests_run remoting_unittests remoting_unittests_run sandbox_linux_unittests sandbox_linux_unittests_run skia_unittests skia_unittests_run sql_unittests sql_unittests_run sync_unit_tests sync_unit_tests_run ui_base_unittests ui_base_unittests_run ui_chromeos_unittests ui_touch_selection_unittests ui_touch_selection_unittests_run unit_tests unit_tests_run url_unittests url_unittests_run views_unittests wm_unittests wm_unittests_run -j50
ninja: Entering directory `/b/build/slave/linux_chromeos/build/src/out/Debug'

Review URL: https://codereview.chromium.org/1288863002
 2015-08-12 18:58:52 -07:00
reed
33e00db73d Revert[4] "move some public headers into private" 
This reverts commit 9cdcabefa3.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1291613007
 2015-08-12 12:53:10 -07:00
reed
9cdcabefa3 Revert[3] "move some public headers into private" 
This reverts commit 9d20ee57d7.

BUG=skia:
TBR=

failures here: https://codereview.chromium.org/1286103004

Review URL: https://codereview.chromium.org/1290733002
 2015-08-12 05:33:12 -07:00
reed
9d20ee57d7 Revert[2] "move some public headers into private" 
This reverts commit 4cf9e7e147.

BUG=skia:
TBR=
NOTRY=True

Review URL: https://codereview.chromium.org/1284173002
 2015-08-12 04:42:08 -07:00
reed
4cf9e7e147 Revert "move some public headers into private" 
This reverts commit eedf0fb204.

BUG=skia:
TBR=
NOTRY=True

Review URL: https://codereview.chromium.org/1270313005
 2015-08-11 08:39:18 -07:00
reed
eedf0fb204 move some public headers into private 
BUG=skia:

Review URL: https://codereview.chromium.org/1289483002
 2015-08-11 07:15:00 -07:00