Add libva to chromium third_party.

third_party/libva/va/glx/va_glx.c

+/*
+ * Copyright (C) 2009 Splitted-Desktop Systems. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include "va_glx_private.h"
+#include "va_glx_impl.h"
+
+#define INIT_CONTEXT(ctx, dpy) do {                             \
+        if (!vaDisplayIsValid(dpy))                             \
+            return VA_STATUS_ERROR_INVALID_DISPLAY;             \
+                                                                \
+        ctx = ((VADisplayContextP)(dpy))->pDriverContext;       \
+        if (!(ctx))                                             \
+            return VA_STATUS_ERROR_INVALID_DISPLAY;             \
+                                                                \
+        VAStatus status = va_glx_init_context(ctx);             \
+        if (status != VA_STATUS_SUCCESS)                        \
+            return status;                                      \
+    } while (0)
+
+#define INVOKE(ctx, func, args) do {                            \
+        VADriverVTableGLXP vtable;                              \
+        vtable = &VA_DRIVER_CONTEXT_GLX(ctx)->vtable;           \
+        if (!vtable->va##func##GLX)                             \
+            return VA_STATUS_ERROR_UNIMPLEMENTED;               \
+        status = vtable->va##func##GLX args;                    \
+    } while (0)
+
+
+// Destroy VA/GLX display context
+static void va_DisplayContextDestroy(VADisplayContextP pDisplayContext)
+{
+    VADisplayContextGLXP pDisplayContextGLX;
+    VADriverContextP     pDriverContext;
+    VADriverContextGLXP  pDriverContextGLX;
+
+    if (!pDisplayContext)
+        return;
+
+    pDriverContext     = pDisplayContext->pDriverContext;
+    pDriverContextGLX  = pDriverContext->glx;
+    if (pDriverContextGLX) {
+        free(pDriverContextGLX);
+        pDriverContext->glx = NULL;
+    }
+
+    pDisplayContextGLX = pDisplayContext->opaque;
+    if (pDisplayContextGLX) {
+        vaDestroyFunc vaDestroy = pDisplayContextGLX->vaDestroy;
+        free(pDisplayContextGLX);
+        pDisplayContext->opaque = NULL;
+        if (vaDestroy)
+            vaDestroy(pDisplayContext);
+    }
+}
+
+// Return a suitable VADisplay for VA API
+VADisplay vaGetDisplayGLX(Display *native_dpy)
+{
+    VADisplay            dpy                = NULL;
+    VADisplayContextP    pDisplayContext    = NULL;
+    VADisplayContextGLXP pDisplayContextGLX = NULL;
+    VADriverContextP     pDriverContext;
+    VADriverContextGLXP  pDriverContextGLX  = NULL;
+
+    dpy = vaGetDisplay(native_dpy);
+    if (!dpy)
+        return NULL;
+    pDisplayContext = (VADisplayContextP)dpy;
+    pDriverContext  = pDisplayContext->pDriverContext;
+
+    pDisplayContextGLX = calloc(1, sizeof(*pDisplayContextGLX));
+    if (!pDisplayContextGLX)
+        goto error;
+
+    pDriverContextGLX = calloc(1, sizeof(*pDriverContextGLX));
+    if (!pDriverContextGLX)
+        goto error;
+
+    pDisplayContextGLX->vaDestroy = pDisplayContext->vaDestroy;
+    pDisplayContext->vaDestroy    = va_DisplayContextDestroy;
+    pDisplayContext->opaque       = pDisplayContextGLX;
+    pDriverContext->glx           = pDriverContextGLX;
+    return dpy;
+
+error:
+    free(pDriverContextGLX);
+    free(pDisplayContextGLX);
+    pDisplayContext->vaDestroy(pDisplayContext);
+    return NULL;
+}
+
+// Create a surface used for display to OpenGL
+VAStatus vaCreateSurfaceGLX(
+    VADisplay dpy,
+    GLenum    target,
+    GLuint    texture,
+    void    **gl_surface
+)
+{
+    VADriverContextP ctx;
+    VAStatus status;
+
+    /* Make sure it is a valid GL texture object */
+    if (!glIsTexture(texture))
+        return VA_STATUS_ERROR_INVALID_PARAMETER;
+
+    INIT_CONTEXT(ctx, dpy);
+
+    INVOKE(ctx, CreateSurface, (ctx, target, texture, gl_surface));
+    return status;
+}
+
+// Destroy a VA/GLX surface
+VAStatus vaDestroySurfaceGLX(
+    VADisplay dpy,
+    void     *gl_surface
+)
+{
+    VADriverContextP ctx;
+    VAStatus status;
+
+    INIT_CONTEXT(ctx, dpy);
+
+    INVOKE(ctx, DestroySurface, (ctx, gl_surface));
+    return status;
+}
+
+// Copy a VA surface to a VA/GLX surface
+VAStatus vaCopySurfaceGLX(
+    VADisplay    dpy,
+    void        *gl_surface,
+    VASurfaceID  surface,
+    unsigned int flags
+)
+{
+    VADriverContextP ctx;
+    VAStatus status;
+
+    INIT_CONTEXT(ctx, dpy);
+
+    INVOKE(ctx, CopySurface, (ctx, gl_surface, surface, flags));
+    return status;
+}