norohind/kmscon
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context: first initialize EGL then find functions

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We should first create a GL context before we try to find GL functions
to avoid errors on some platforms.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This commit is contained in:
David Herrmann 2012-01-20 16:52:58 +01:00
parent 7085084b1d
commit fd390c6043
1 changed files with 45 additions and 45 deletions
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90
src/output_context.c
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@ -369,6 +369,48 @@ int kmscon_context_new(struct kmscon_context **out, void *gbm)
memset(ctx, 0, sizeof(*ctx));
ctx->display = eglGetDisplay((EGLNativeDisplayType) gbm);
if (!ctx->display) {
log_warning("context: cannot get EGL display\n");
ret = -EFAULT;
goto err_free;
}
ret = eglInitialize(ctx->display, &major, &minor);
if (!ret) {
log_warning("context: cannot initialize EGL display\n");
ret = -EFAULT;
goto err_free;
}
ext = eglQueryString(ctx->display, EGL_EXTENSIONS);
if (!ext || !strstr(ext, "EGL_KHR_surfaceless_opengl")) {
log_warning("context: surfaceless EGL not supported\n");
ret = -ENOTSUP;
goto err_display;
}
if (!eglBindAPI(EGL_OPENGL_API)) {
log_warning("context: cannot bind EGL OpenGL API\n");
ret = -EFAULT;
goto err_display;
}
ctx->context = eglCreateContext(ctx->display, NULL, EGL_NO_CONTEXT,
NULL);
if (!ctx->context) {
log_warning("context: cannot create EGL context\n");
ret = -EFAULT;
goto err_display;
}
if (!eglMakeCurrent(ctx->display, EGL_NO_SURFACE, EGL_NO_SURFACE,
ctx->context)) {
log_warning("context: cannot use EGL context\n");
ret = -EFAULT;
goto err_ctx;
}
ctx->proc_rbuf_storage = (void*)
eglGetProcAddress("glEGLImageTargetRenderbufferStorageOES");
ctx->proc_create_image =
@ -438,7 +480,7 @@ int kmscon_context_new(struct kmscon_context **out, void *gbm)
!ctx->proc_destroy_image) {
log_warning("context: KHR images not supported\n");
ret = -ENOTSUP;
goto err_free;
goto err_ctx;
} else if (!ctx->proc_gen_renderbuffers ||
!ctx->proc_bind_renderbuffer ||
!ctx->proc_delete_renderbuffers ||
@ -446,7 +488,7 @@ int kmscon_context_new(struct kmscon_context **out, void *gbm)
!ctx->proc_check_framebuffer_status) {
log_warning("context: renderbuffers not supported\n");
ret = -ENOTSUP;
goto err_free;
goto err_ctx;
} else if (!ctx->proc_create_shader ||
!ctx->proc_delete_shader ||
!ctx->proc_shader_source ||
@ -455,7 +497,7 @@ int kmscon_context_new(struct kmscon_context **out, void *gbm)
!ctx->proc_get_shader_info_log) {
log_warning("context: shaders not supported\n");
ret = -ENOTSUP;
goto err_free;
goto err_ctx;
} else if (!ctx->proc_create_program ||
!ctx->proc_delete_program ||
!ctx->proc_use_program ||
@ -472,48 +514,6 @@ int kmscon_context_new(struct kmscon_context **out, void *gbm)
!ctx->proc_draw_arrays) {
log_warning("context: shaders not supported\n");
ret = -ENOTSUP;
goto err_free;
}
ctx->display = eglGetDisplay((EGLNativeDisplayType) gbm);
if (!ctx->display) {
log_warning("context: cannot get EGL display\n");
ret = -EFAULT;
goto err_free;
}
ret = eglInitialize(ctx->display, &major, &minor);
if (!ret) {
log_warning("context: cannot initialize EGL display\n");
ret = -EFAULT;
goto err_free;
}
ext = eglQueryString(ctx->display, EGL_EXTENSIONS);
if (!ext || !strstr(ext, "EGL_KHR_surfaceless_opengl")) {
log_warning("context: surfaceless EGL not supported\n");
ret = -ENOTSUP;
goto err_display;
}
if (!eglBindAPI(EGL_OPENGL_API)) {
log_warning("context: cannot bind EGL OpenGL API\n");
ret = -EFAULT;
goto err_display;
}
ctx->context = eglCreateContext(ctx->display, NULL, EGL_NO_CONTEXT,
NULL);
if (!ctx->context) {
log_warning("context: cannot create EGL context\n");
ret = -EFAULT;
goto err_display;
}
if (!eglMakeCurrent(ctx->display, EGL_NO_SURFACE, EGL_NO_SURFACE,
ctx->context)) {
log_warning("context: cannot use EGL context\n");
ret = -EFAULT;
goto err_ctx;
}