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-rw-r--r--src/glx/query_renderer.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/src/glx/query_renderer.c b/src/glx/query_renderer.c
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+++ b/src/glx/query_renderer.c
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+/*
+ * Copyright © 2013 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 "glxclient.h"
+#include "glx_error.h"
+
+#include <assert.h>
+
+static Bool
+__glXQueryRendererInteger(struct glx_screen *psc, int attribute,
+ unsigned int *value)
+{
+ unsigned int values_for_query = 0;
+ int buffer[32];
+ int err;
+
+ /* This probably means the caller is trying to use an extension function
+ * that isn't actually supported.
+ */
+ if (psc->vtable->query_renderer_integer == NULL)
+ return False;
+
+ switch (attribute) {
+ case GLX_RENDERER_VENDOR_ID_MESA:
+ case GLX_RENDERER_DEVICE_ID_MESA:
+ values_for_query = 1;
+ break;
+ case GLX_RENDERER_VERSION_MESA:
+ values_for_query = 3;
+ break;
+ case GLX_RENDERER_ACCELERATED_MESA:
+ case GLX_RENDERER_VIDEO_MEMORY_MESA:
+ case GLX_RENDERER_UNIFIED_MEMORY_ARCHITECTURE_MESA:
+ case GLX_RENDERER_PREFERRED_PROFILE_MESA:
+ values_for_query = 1;
+ break;
+ case GLX_RENDERER_OPENGL_CORE_PROFILE_VERSION_MESA:
+ case GLX_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION_MESA:
+ case GLX_RENDERER_OPENGL_ES_PROFILE_VERSION_MESA:
+ case GLX_RENDERER_OPENGL_ES2_PROFILE_VERSION_MESA:
+ values_for_query = 2;
+ break;
+
+ default:
+ return False;
+ }
+
+ err = psc->vtable->query_renderer_integer(psc, attribute, buffer);
+
+ /* If there was no error, copy the correct number of values from the driver
+ * out to the application.
+ */
+ if (err == 0)
+ memcpy(value, buffer, sizeof(unsigned int) * values_for_query);
+
+ return err == 0;
+}
+
+_X_HIDDEN Bool
+glXQueryRendererIntegerMESA(Display *dpy, int screen,
+ int renderer, int attribute,
+ unsigned int *value)
+{
+ struct glx_screen *psc;
+
+ if (dpy == NULL)
+ return False;
+
+ /* This probably means the caller passed the wrong display pointer or
+ * screen number.
+ */
+ psc = GetGLXScreenConfigs(dpy, screen);
+ if (psc == NULL)
+ return False;
+
+ /* Right now only a single renderer per display / screen combination is
+ * supported.
+ */
+ if (renderer != 0)
+ return False;
+
+ return __glXQueryRendererInteger(psc, attribute, value);
+}
+
+_X_HIDDEN Bool
+glXQueryCurrentRendererIntegerMESA(int attribute, unsigned int *value)
+{
+ struct glx_context *gc = __glXGetCurrentContext();
+
+ if (gc == NULL)
+ return False;
+
+ return __glXQueryRendererInteger(gc->psc, attribute, value);
+}
+
+static const char *
+__glXQueryRendererString(struct glx_screen *psc, int attribute)
+{
+ const char *value;
+ int err;
+
+ /* This probably means the caller is trying to use an extension function
+ * that isn't actually supported.
+ */
+ if (psc->vtable->query_renderer_integer == NULL)
+ return NULL;
+
+ switch (attribute) {
+ case GLX_RENDERER_VENDOR_ID_MESA:
+ case GLX_RENDERER_DEVICE_ID_MESA:
+ break;
+ default:
+ return NULL;
+ }
+
+ err = psc->vtable->query_renderer_string(psc, attribute, &value);
+ return (err == 0) ? value : NULL;
+}
+
+_X_HIDDEN const char *
+glXQueryRendererStringMESA(Display *dpy, int screen,
+ int renderer, int attribute)
+{
+ struct glx_screen *psc;
+
+ if (dpy == NULL)
+ return False;
+
+ /* This probably means the caller passed the wrong display pointer or
+ * screen number.
+ */
+ psc = GetGLXScreenConfigs(dpy, screen);
+ if (psc == NULL)
+ return False;
+
+ /* Right now only a single renderer per display / screen combination is
+ * supported.
+ */
+ if (renderer != 0)
+ return False;
+
+ return __glXQueryRendererString(psc, attribute);
+}
+
+_X_HIDDEN const char *
+glXQueryCurrentRendererStringMESA(int attribute)
+{
+ struct glx_context *gc = __glXGetCurrentContext();
+
+ if (gc == NULL)
+ return False;
+
+ return __glXQueryRendererString(gc->psc, attribute);
+}