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graphics: use dummy GLESv1 by default

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Newer Ubuntu systems tend to not provide a libGLESv1_CM.so.1 anymore. As
we're not required to have a GLESv1 implementation (only a few older
Android apps are using GLESv1) we can as easy fix avoid loading a real
GLESv1 implementation and assign dummy functions instead to all relevant
GLESv1 API calls. In the future we want to switch to a GLESv1->GLESv2
translator as the Android emulator does.
This commit is contained in:
Simon Fels 2018-05-15 08:53:21 +02:00
commit 01ef1d23de
2 changed files with 33 additions and 24 deletions
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14
src/anbox/graphics/emugl/RenderApi.cpp
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@ -40,10 +40,6 @@ namespace emugl {
std::vector<GLLibrary> default_gl_libraries() {
return std::vector<GLLibrary>{
{GLLibrary::Type::EGL, default_egl_lib},
// If environment doesn't provide a GLESv1 .so file we use the GLESv2
// implementation instead. If our stack allows it we can try to get
// rid of GLESv1 completely at a later point.
{GLLibrary::Type::GLESv1, default_glesv1_lib},
{GLLibrary::Type::GLESv2, default_glesv2_lib},
};
}
@ -75,7 +71,15 @@ bool initialize(const std::vector<GLLibrary> &libs, emugl_logger_struct *log_fun
}
}
if (!s_egl.initialized || !s_gles1.initialized || !s_gles2.initialized)
// If we are not provided with a link to a OpenGL ES v1 implementation
// we assign dummy functions to all of the functions we would call.
// This allows us to still manage the major chunk of Android applications
// which are all >= GLESv2 until we have a proper GLESv1->GLESv2
// translation mechanism in place.
if (!s_gles1.initialized)
gles1_dispatch_init(nullptr, &s_gles1);
if (!s_egl.initialized || !s_gles2.initialized)
return false;
return true;