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Update VR context creation

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Bastien
2018-09-21 13:20:04 +02:00
parent 50ce9dc871
commit db8564e12b
1 changed files with 44 additions and 103 deletions
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147
examples/opengl/vr_context.c
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@@ -10,114 +10,29 @@
#include <EGL/eglext.h>
#include "context.inl"
static EGLDisplay display;
static EGLSurface surface;
static EGLContext context;
static void create_vr_context(struct lvrcInstance * compositor)
static const EGLint attribs[] =
{
static const EGLint attribs[] =
{
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
//EGL_ALPHA_SIZE, 8,
//EGL_DEPTH_SIZE, 16,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
//EGL_ALPHA_SIZE, 8,
//EGL_DEPTH_SIZE, 16,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
static const EGLint context_attributes[] =
{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
//
// Get Native Display
EGLNativeDisplayType nativeDisplay = lvrcSwapChainGetNativeDisplay(compositor);
if (!nativeDisplay)
{
fprintf(stderr, "invalid native display\n");
exit(-1);
}
//
// get an EGL display connection
display = eglGetDisplay(nativeDisplay);
if (EGL_NO_DISPLAY == display)
{
fprintf(stderr, "eglGetDisplay() failed\n");
exit(-1);
}
//
// initialize the EGL display connection
EGLint major, minor;
if (!eglInitialize(display, &major, &minor))
{
fprintf(stderr, "eglInitialize() failed\n");
exit(-1);
}
//
// bind OpenGL API
eglBindAPI(EGL_OPENGL_API);
//
// get an appropriate EGL frame buffer configuration
EGLint num_config;
EGLConfig configs[128];
if (!eglChooseConfig(display, attribs, configs, 128, &num_config))
{
fprintf(stderr, "eglChooseConfig() failed\n");
exit(-1);
}
EGLConfig config = configs[0]; // FIXME
//
// create context
context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_attributes);
if (EGL_NO_CONTEXT == context)
{
fprintf(stderr, "failed to create context\n");
exit(-1);
}
//
// Get Native Window
EGLNativeWindowType nativeWindow = lvrcSwapChainGetNativeWindow(compositor);
if (!nativeWindow)
{
fprintf(stderr, "invalid native window\n");
exit(-1);
}
//
// Create Surface
surface = eglCreateWindowSurface(display, config, nativeWindow, NULL);
if (EGL_NO_SURFACE == surface)
{
fprintf(stderr, "eglCreateWindowSurface() failed\n");
exit(-1);
}
//
// Set current context
if (!eglMakeCurrent(display, surface, surface, context))
{
fprintf(stderr, "failed to make context current\n");
exit(-1);
}
}
static const EGLint context_attributes[] =
{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
GLuint left_color_tex = 0;
GLuint right_color_tex = 0;
@@ -132,7 +47,33 @@ void init_vr_context(struct lvrcInstance * compositor, dma_texture_params * left
exit(-1);
}
create_vr_context(compositor);
//
// Get Native Display
EGLNativeDisplayType nativeDisplay = lvrcSwapChainGetNativeDisplay(compositor);
if (!nativeDisplay)
{
fprintf(stderr, "invalid native display\n");
exit(-1);
}
//
// Get Native Window
EGLNativeWindowType nativeWindow = lvrcSwapChainGetNativeWindow(compositor);
if (!nativeWindow)
{
fprintf(stderr, "invalid native window\n");
exit(-1);
}
bool bContextCreated = create_context(nativeDisplay, nativeWindow, attribs, context_attributes, NULL, &display, &context, &surface);
if (!bContextCreated)
{
fprintf(stderr, "couldn't create compositor context\n");
exit(-1);
}
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) eglGetProcAddress ("glEGLImageTargetTexture2DOES");