Call glFinish on render breaks #575
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- android/src/main/java/io/openmobilemaps/mapscore/graphics/GLThread.kt (5 hunks)
Additional comments: 6
android/src/main/java/io/openmobilemaps/mapscore/graphics/GLThread.kt (6)
- 19-19: The import of
AtomicLongis appropriate for thread-safe operations on timestamps.- 42-45: The addition of constants for managing render intervals is a good practice for readability and maintainability.
- 77-78: The introduction of
lastDirtyTimestampas anAtomicLongandhasFinishedSinceDirtyas a boolean variable is consistent with the PR's objective to track rendering completion and manage synchronization.- 116-125: The logic to handle the pause state and rendering completion using
hasFinishedSinceDirtyandlastDirtyTimestampseems correct. However, it's important to verify that these changes integrate well with the existing rendering logic and do not introduce any regressions.Verification successful
The search results confirm the presence of the variables
lastDirtyTimestampandhasFinishedSinceDirtyin theGLThread.ktfile. ThelastDirtyTimestampis set to the current time in milliseconds at some point in the code, andhasFinishedSinceDirtyis toggled betweentrueandfalse. The conditional logic involving these variables is also present, as indicated by the search results.To ensure that the new synchronization logic integrates well with the existing rendering logic and does not introduce regressions, we need to examine the context in which
lastDirtyTimestampandhasFinishedSinceDirtyare used. Specifically, we should look at the sections of code where these variables are set and reset, as well as any other parts of therunmethod that may interact with these new changes.
The additional context provided from the script output shows the usage of
lastDirtyTimestampandhasFinishedSinceDirtywithin theGLThread.ktfile. Here's what we can infer from the output:
lastDirtyTimestampis anAtomicLongused to store a timestamp, andhasFinishedSinceDirtyis a boolean flag.- These variables are used in a conditional statement that determines when to call
GLES32.glFinish(), which ensures that all OpenGL ES commands are finished before proceeding.- The
requestRendermethod setslastDirtyTimestampto the current time and resetshasFinishedSinceDirtytofalse, indicating that a new rendering cycle is requested and has not finished since the content was marked dirty.- The
runmethod contains logic that checks if the rendering should be paused (firstPause) or if the rendering has not finished since the last dirty state and a certain amount of time (BREAK_MIN_FINISH_MS) has passed since the last dirty timestamp.The surrounding context of these variables does not indicate any obvious conflicts with existing rendering logic. The use of
AtomicLongandAtomicBooleansuggests that thread safety is considered, which is important in a rendering loop that may involve multiple threads.Based on the provided context, the changes appear to be correctly implemented to ensure that rendering commands are fully executed before new rendering cycles begin, without any evident conflicts or regressions.
* 130-132: The use of `wait` with calculated intervals to manage rendering breaks is a good approach to ensure that the rendering process is not consuming resources when it's not necessary. * 381-384: Setting `lastDirtyTimestamp` and `hasFinishedSinceDirty` in `requestRender` aligns with the PR's objectives to manage the rendering state.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Verify that the new synchronization logic does not conflict with existing rendering logic. rg --type kotlin "hasFinishedSinceDirty|lastDirtyTimestamp" android/src/main/java/io/openmobilemaps/mapscore/graphics/Length of output: 848
Script:
#!/bin/bash # Examine the context in which `lastDirtyTimestamp` and `hasFinishedSinceDirty` are used. rg --type kotlin -C 5 "hasFinishedSinceDirty|lastDirtyTimestamp" android/src/main/java/io/openmobilemaps/mapscore/graphics/GLThread.ktLength of output: 1108
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- android/src/main/java/io/openmobilemaps/mapscore/graphics/GLThread.kt
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android/src/main/java/io/openmobilemaps/mapscore/graphics/GLThread.kt
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Files selected for processing (1)
- android/src/main/java/io/openmobilemaps/mapscore/graphics/GLThread.kt (6 hunks)
Files skipped from review as they are similar to previous changes (1)
- android/src/main/java/io/openmobilemaps/mapscore/graphics/GLThread.kt
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