egl: Reintroduce eglGetRenderBufferANDROID

eglGetRenderBufferANDROID was removed as it had no users. This commit
reintroduces this extensions as it's used by Qualcomm graphics HAL.

Change-Id: I493306830a0d4f8722a42bcc84fb49236afdabeb

diff --git a/opengl/include/EGL/eglext.h b/opengl/include/EGL/eglext.h
index 2d41aa7..540a547 100644 (file)
--- a/opengl/include/EGL/eglext.h
+++ b/opengl/include/EGL/eglext.h
@@ -213,6 +213,7 @@ typedef EGLBoolean (EGLAPIENTRYP PFNEGLFENCENVPROC) (EGLSyncNV sync);
 typedef EGLint (EGLAPIENTRYP PFNEGLCLIENTWAITSYNCNVPROC) (EGLSyncNV sync, EGLint flags, EGLTimeNV timeout);
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSIGNALSYNCNVPROC) (EGLSyncNV sync, EGLenum mode);
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETSYNCATTRIBNVPROC) (EGLSyncNV sync, EGLint attribute, EGLint *value);
+typedef EGLClientBuffer (EGLAPIENTRYP PFNEGLGETRENDERBUFFERANDROIDPROC) (EGLDisplay dpy, EGLSurface draw);
 #endif
 
 #ifndef EGL_KHR_fence_sync
@@ -262,6 +263,15 @@ typedef void (EGLAPIENTRYP PFNEGLSETBLOBCACHEFUNCSANDROIDPROC) (EGLDisplay dpy,
         EGLSetBlobFuncANDROID set, EGLGetBlobFuncANDROID get);
 #endif
 
+/* EGL_ANDROID_get_render_buffer
+ */
+#ifndef EGL_ANDROID_get_render_buffer
+#define EGL_ANDROID_get_render_buffer 1
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLClientBuffer EGLAPIENTRY eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw);
+#endif
+#endif
+
 /* EGL_IMG_hibernate_process
  */
 #ifndef EGL_IMG_hibernate_process

diff --git a/opengl/libagl/egl.cpp b/opengl/libagl/egl.cpp
index c31aebf..232c84f 100644 (file)
--- a/opengl/libagl/egl.cpp
+++ b/opengl/libagl/egl.cpp
@@ -165,6 +165,7 @@ struct egl_surface_t
     virtual     EGLint      getSwapBehavior() const;
     virtual     EGLBoolean  swapBuffers();
     virtual     EGLBoolean  setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
+    virtual     EGLClientBuffer getRenderBuffer() const;
 protected:
     GGLSurface              depth;
 };
@@ -208,6 +209,9 @@ EGLBoolean egl_surface_t::setSwapRectangle(
 {
     return EGL_FALSE;
 }
+EGLClientBuffer egl_surface_t::getRenderBuffer() const {
+    return 0;
+}
 
 // ----------------------------------------------------------------------------
 
@@ -233,6 +237,7 @@ struct egl_window_surface_v2_t : public egl_surface_t
     virtual     EGLint      getRefreshRate() const;
     virtual     EGLint      getSwapBehavior() const;
     virtual     EGLBoolean  setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h);
+    virtual     EGLClientBuffer  getRenderBuffer() const;
     
 private:
     status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr);
@@ -571,6 +576,11 @@ EGLBoolean egl_window_surface_v2_t::setSwapRectangle(
     return EGL_TRUE;
 }
 
+EGLClientBuffer egl_window_surface_v2_t::getRenderBuffer() const
+{
+    return buffer;
+}
+
 EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl)
 {
     GGLSurface buffer;
@@ -801,6 +811,7 @@ static char const * const gExtensionsString =
         // "KHR_image_pixmap "
         "EGL_ANDROID_image_native_buffer "
         "EGL_ANDROID_swap_rectangle "
+        "EGL_ANDROID_get_render_buffer "
         ;
 
 // ----------------------------------------------------------------------------
@@ -861,6 +872,8 @@ static const extention_map_t gExtentionMap[] = {
             (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR },
     { "eglSetSwapRectangleANDROID", 
             (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 
+    { "eglGetRenderBufferANDROID",
+        (__eglMustCastToProperFunctionPointerType)&eglGetRenderBufferANDROID },
 };
 
 /*
@@ -2154,3 +2167,18 @@ EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
 
     return EGL_TRUE;
 }
+
+EGLClientBuffer eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw)
+{
+    if (egl_display_t::is_valid(dpy) == EGL_FALSE)
+        return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0);
+
+    egl_surface_t* d = static_cast<egl_surface_t*>(draw);
+    if (!d->isValid())
+        return setError(EGL_BAD_SURFACE, (EGLClientBuffer)0);
+    if (d->dpy != dpy)
+        return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0);
+
+    // post the surface
+    return d->getRenderBuffer();
+}

diff --git a/opengl/libs/EGL/eglApi.cpp b/opengl/libs/EGL/eglApi.cpp
index 1bc4eb7..de6c2c9 100644 (file)
--- a/opengl/libs/EGL/eglApi.cpp
+++ b/opengl/libs/EGL/eglApi.cpp
@@ -70,6 +70,8 @@ static const extention_map_t sExtentionMap[] = {
             (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
     { "eglDestroyImageKHR",
             (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
+    { "eglGetRenderBufferANDROID",
+        (__eglMustCastToProperFunctionPointerType)&eglGetRenderBufferANDROID },
     { "eglGetSystemTimeFrequencyNV",
             (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeFrequencyNV },
     { "eglGetSystemTimeNV",
@@ -1190,7 +1192,21 @@ EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync,
 // ANDROID extensions
 // ----------------------------------------------------------------------------
 
-/* ANDROID extensions entry-point go here */
+EGLClientBuffer eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw)
+{
+    clearError();
+
+    const egl_display_ptr dp = validate_display(dpy);
+    if (!dp) return EGL_FALSE;
+
+    egl_surface_t const * const s = get_surface(draw);
+
+    egl_connection_t* const cnx = &gEGLImpl;
+    if (cnx->dso && cnx->egl.eglGetRenderBufferANDROID) {
+        return cnx->egl.eglGetRenderBufferANDROID(dp->disp.dpy, s->surface);
+    }
+    return setError(EGL_BAD_DISPLAY, (EGLClientBuffer*)0);
+}
 
 // ----------------------------------------------------------------------------
 // NVIDIA extensions