+static struct glx_context *
+dri2_create_context_attribs(struct glx_screen *base,
+ struct glx_config *config_base,
+ struct glx_context *shareList,
+ unsigned num_attribs,
+ const uint32_t *attribs,
+ unsigned *error)
+{
+ struct dri2_context *pcp = NULL;
+ struct dri2_context *pcp_shared = NULL;
+ struct dri2_screen *psc = (struct dri2_screen *) base;
+ __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base;
+ __DRIcontext *shared = NULL;
+
+ uint32_t minor_ver;
+ uint32_t major_ver;
+ uint32_t renderType;
+ uint32_t flags;
+ unsigned api;
+ int reset;
+ int release;
+ uint32_t ctx_attribs[2 * 6];
+ unsigned num_ctx_attribs = 0;
+
+ if (psc->dri2->base.version < 3) {
+ *error = __DRI_CTX_ERROR_NO_MEMORY;
+ goto error_exit;
+ }
+
+ /* Remap the GLX tokens to DRI2 tokens.
+ */
+ if (!dri2_convert_glx_attribs(num_attribs, attribs,
+ &major_ver, &minor_ver, &renderType, &flags,
+ &api, &reset, &release, error))
+ goto error_exit;
+
+ /* Check the renderType value */
+ if (!validate_renderType_against_config(config_base, renderType))
+ goto error_exit;
+
+ if (shareList) {
+ pcp_shared = (struct dri2_context *) shareList;
+ shared = pcp_shared->driContext;
+ }
+
+ pcp = calloc(1, sizeof *pcp);
+ if (pcp == NULL) {
+ *error = __DRI_CTX_ERROR_NO_MEMORY;
+ goto error_exit;
+ }
+
+ if (!glx_context_init(&pcp->base, &psc->base, config_base))
+ goto error_exit;
+
+ ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
+ ctx_attribs[num_ctx_attribs++] = major_ver;
+ ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
+ ctx_attribs[num_ctx_attribs++] = minor_ver;
+
+ /* Only send a value when the non-default value is requested. By doing
+ * this we don't have to check the driver's DRI2 version before sending the
+ * default value.
+ */
+ if (reset != __DRI_CTX_RESET_NO_NOTIFICATION) {
+ ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
+ ctx_attribs[num_ctx_attribs++] = reset;
+ }
+
+ if (release != __DRI_CTX_RELEASE_BEHAVIOR_FLUSH) {
+ ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR;
+ ctx_attribs[num_ctx_attribs++] = release;
+ }
+
+ if (flags != 0) {
+ ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
+
+ /* The current __DRI_CTX_FLAG_* values are identical to the
+ * GLX_CONTEXT_*_BIT values.
+ */
+ ctx_attribs[num_ctx_attribs++] = flags;
+ }
+
+ /* The renderType is retrieved from attribs, or set to default
+ * of GLX_RGBA_TYPE.
+ */
+ pcp->base.renderType = renderType;
+
+ pcp->driContext =
+ (*psc->dri2->createContextAttribs) (psc->driScreen,
+ api,
+ config ? config->driConfig : NULL,
+ shared,
+ num_ctx_attribs / 2,
+ ctx_attribs,
+ error,
+ pcp);
+
+ if (pcp->driContext == NULL)
+ goto error_exit;
+
+ pcp->base.vtable = &dri2_context_vtable;
+
+ return &pcp->base;
+
+error_exit:
+ free(pcp);
+
+ return NULL;
+}
+