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[Android] [gui] Add initial support of Android in GGUI #3845

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merged 1 commit into from
Dec 27, 2021

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ghuau-innopeak
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Related issue = #3679

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@ghuau-innopeak
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This is an initial draft to allow using GGUI on Android, I'm not an entire fan of the changes in GGUI to run with Android but this is the simple transition I could do without impacting too much the code right now, the main issue is that GLFW code is a bit everywhere :).
Also, I'm still not 100% sure of the best solution for handling the DeviceAllocation, right now, I just added a new field in the struct as we cannot use the snode as it will require a program.

Here is a quick example on how to use it for Android as well: https://github.com/ghuau-innopeak/taichi-aot-tests/blob/main/android/app/src/main/cpp/main.cpp (it's test code... :))

@ghuau-innopeak ghuau-innopeak changed the title [Android][GUI] Add initial support of Android in GGUI [Android] [GUI] Add initial support of Android in GGUI Dec 21, 2021
@ghuau-innopeak ghuau-innopeak changed the title [Android] [GUI] Add initial support of Android in GGUI [Android] [gui] Add initial support of Android in GGUI Dec 21, 2021
@AmesingFlank
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This is amazing!
Regarding the device allocation, I'm happy with the current solution, but it's best if we add a comment to clarify when where the DeviceAllocation be used and when will the snode be used. (also, nit, I'd rename dalloc to dev_alloc)

@@ -144,7 +154,7 @@ void Renderable::create_graphics_pipeline() {
void Renderable::create_vertex_buffer() {
size_t buffer_size = sizeof(Vertex) * config_.max_vertices_count;

Device::AllocParams vb_params{buffer_size, false, false,
Device::AllocParams vb_params{buffer_size, true, true,
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May I ask why this is needed for Android?
If this is really necessary, then we should guard it with #if ANDROID so that it doesn't hurt the performance of GGUI on other platforms.

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This is not needed, this is something I forget to revert during my testing... good catch! :D, it should be fixed.

Comment on lines 9 to 18
#ifdef ANDROID
#include <android/native_window.h>
typedef ANativeWindow TaichiWindow;
#else
typedef GLFWwindow TaichiWindow;
#endif
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tiny nit, let's use using A = B instead of typedef B A, and maybe put TaichiWindow inside taichi::ui?

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Done! My habits of C developer :), I left the #include outside as well to avoid having all the functions from this header inside the Taichi namespace, I think I could have used namespace { #include <android/native_window.h> } instead to avoid the extra ifdef ANDROID but not sure what is preferred here.

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I think this is fine.

@ghuau-innopeak ghuau-innopeak force-pushed the ggui_android branch 2 times, most recently from cd66776 to c45a6fa Compare December 21, 2021 16:21
@ghuau-innopeak
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@AmesingFlank Perfect :), I added a comment in the struct to clarify the usage of both fields.

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LGTM! Looking forward to seeing a demo on Android :D

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LGTM

@k-ye k-ye merged commit d56b424 into taichi-dev:master Dec 27, 2021
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4 participants