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[[QuartzCore.framework|QuartzCore]], also known as '''Core Animation''', is an Objective-C framework that to declaratively build an animatable scene graph. CoreAnimation uses a unique rendering model where the graphics operations are run in a separate process. | |||
For an example of using it, see [[Page Flip]]. | For an example of using it, see [[Page Flip]]. | ||
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! Flag | ! Flag | ||
! Environment variable | ! Environment variable | ||
! Meaning | |||
|- | |- | ||
| 1 || CA_COLOR_FLUSH<ref name="qdl">http://lists.apple.com/archives/Quartz-dev/2008/Oct/msg00048.html</ref> | | 1 || CA_COLOR_FLUSH<ref name="qdl">http://lists.apple.com/archives/Quartz-dev/2008/Oct/msg00048.html</ref> | ||
|- | |- | ||
| 2 || CA_COLOR_COPY | | 2 || CA_COLOR_COPY || Color Copied Images | ||
|- | |- | ||
| 4 || CA_COLOR_OPAQUE<ref name="qdl"/><ref name="darknoon">Darknoon Blog » Core Animation debug mode: http://darknoon.com/blog/2009/06/29/core-animation-debug-mode/</ref> | | 4 || CA_COLOR_OPAQUE<ref name="qdl"/><ref name="darknoon">Darknoon Blog » Core Animation debug mode: http://darknoon.com/blog/2009/06/29/core-animation-debug-mode/</ref> || Color Blended Layers: Shows opaque vs non-opaque regions in green and red | ||
|- | |- | ||
| 8 || CA_COLOR_NO_WAIT<ref name="qdl"/> | | 8 || CA_COLOR_NO_WAIT<ref name="qdl"/> || Color Immediately: Like the "no delay after flash" option in Quartz Debug | ||
|- | |- | ||
| 16 || CA_AUTO_FLUSH | | 16 || CA_AUTO_FLUSH | ||
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| 64 || CA_PRINT_OBJECTS | | 64 || CA_PRINT_OBJECTS | ||
|- | |- | ||
| 128 || CA_LOG_IMPLICIT_TRANSACTIONS | | 128 || CA_LOG_IMPLICIT_TRANSACTIONS || Logs all implicitly created transactions: "Started implicit transaction for thread 0x7fff7be65300" | ||
|- | |- | ||
| 256 || CA_LOG_MEMORY_USAGE | | 256 || CA_LOG_MEMORY_USAGE || When there's some CA activity, periodically prints lines like these: "CoreAnimation buffers: currently 0.0522MB; maximum 0.1MB" | ||
|- | |- | ||
| 512 || CA_LOG_IMAGE_COPIES | | 512 || CA_LOG_IMAGE_COPIES || "CoreAnimation: copied CGImageRef 0x6200001a0380 - RGB mask (bug!)" | ||
|- | |- | ||
| 1024 || CA_PRINT_PERF | | 1024 || CA_PRINT_PERF || When there's some CA activity, periodically prints number of transactions since last time | ||
|- | |- | ||
| 2048 || CA_DISABLE_OCCLUSION_CULLING | | 2048 || CA_DISABLE_OCCLUSION_CULLING |
Latest revision as of 14:53, 15 March 2015
QuartzCore.framework | |
Public Framework | |
---|---|
Availabile | 2.0 – present |
Class Prefix | CA |
Headers | [headers.cynder.me] |
QuartzCore, also known as Core Animation, is an Objective-C framework that to declaratively build an animatable scene graph. CoreAnimation uses a unique rendering model where the graphics operations are run in a separate process.
For an example of using it, see Page Flip.
Debugging
Signature | unsigned CAGetDebugFlags(); |
---|---|
Available in | 2.0 – |
Signature | void CASetDebugFlags(unsigned flags); |
---|---|
Available in | 2.0 – |
Applications linked with QuartzCore will recognize the following debugging (boolean) environment variables:
Flag | Environment variable | Meaning |
---|---|---|
1 | CA_COLOR_FLUSH[1] | |
2 | CA_COLOR_COPY | Color Copied Images |
4 | CA_COLOR_OPAQUE[1][2] | Color Blended Layers: Shows opaque vs non-opaque regions in green and red |
8 | CA_COLOR_NO_WAIT[1] | Color Immediately: Like the "no delay after flash" option in Quartz Debug |
16 | CA_AUTO_FLUSH | |
32 | CA_PRINT_TREE[1] | |
64 | CA_PRINT_OBJECTS | |
128 | CA_LOG_IMPLICIT_TRANSACTIONS | Logs all implicitly created transactions: "Started implicit transaction for thread 0x7fff7be65300" |
256 | CA_LOG_MEMORY_USAGE | When there's some CA activity, periodically prints lines like these: "CoreAnimation buffers: currently 0.0522MB; maximum 0.1MB" |
512 | CA_LOG_IMAGE_COPIES | "CoreAnimation: copied CGImageRef 0x6200001a0380 - RGB mask (bug!)" |
1024 | CA_PRINT_PERF | When there's some CA activity, periodically prints number of transactions since last time |
2048 | CA_DISABLE_OCCLUSION_CULLING | |
4096 | CA_DISABLE_DIRTY_REGIONS | |
8192 | CA_LOG_TRIPLE_BUFFERING | |
16384 | CA_COLOR_SUBPIXEL | |
32768 | CA_DISABLE_RENDER | |
65536 | CA_ALWAYS_RENDER | |
131072 | CA_COLOR_OFFSCREEN | |
262144 | CA_COLOR_DETACHED | |
524288 | CA_COLOR_CACHED | |
1048576 | CA_DISABLE_DETACHED |
Alternatively, you can use the CASetDebugFlags() to update the flags in runtime.
Other environment variables
Additionally, the following environment variables not governed by CASetDebugFlags() also exist:
Environment variable | Default | Meaning |
---|---|---|
CA_BENCHMARK LK_BENCHMARK |
false | - |
CA_LOG_IMAGE_QUEUE_FRAMES | false | - |
CA_PRINT_SHADERS | false | Log the vertex and fragment shader codes when creating them. |
CA_DISABLED_EXTENSIONS | NULL | A space-delimited list of the following OpenGL extensions that should be disabled: |
CA_DISABLE_WORKAROUNDS | false | - |
CA_MAX_TEXTURE_UNITS | ? | - |
CA_MAX_TEXTURE_SIZE | ? | - |
CA_ENABLE_OGL | true | - |
CA_ENABLE_TILING | true | - |
CA_RESIZE_YUV_SCALE | 0.8 | - |
MBX2D_OFFSCREEN MBX2D_PAGE_FLIP |
true | - |
CA_CLONE_OVERSCAN_AMOUNT | 0.0? | - |
CA_CLONE_DISPLAY | false | - |
Versions
Firmware | 2.0 | 2.1 | 2.2 | 3.0 | 3.1 | 3.2 |
---|---|---|---|---|---|---|
SourceCache version | N/A | |||||
dylib version | 1.6 |
References
- ↑ 1.0 1.1 1.2 1.3 http://lists.apple.com/archives/Quartz-dev/2008/Oct/msg00048.html
- ↑ Darknoon Blog » Core Animation debug mode: http://darknoon.com/blog/2009/06/29/core-animation-debug-mode/
- Official reference: http://developer.apple.com/iPhone/library/documentation/GraphicsImaging/Reference/QuartzCoreRefCollection/index.html
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