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| author | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
| commit | 807c6931fe683fd844ceec1b023232181e6aae03 (patch) | |
| tree | 1a131ed95fe2200d0ad33da8f7755a7ed2364adc /mesalib/src/mesa/state_tracker/st_cb_xformfb.c | |
| parent | 973099dda7e49e5abe29819a7124b3b1e7bd8b92 (diff) | |
| download | vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.gz vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.bz2 vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.zip | |
xserver and mesa git update 28-12-2010
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_xformfb.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_xformfb.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_xformfb.c b/mesalib/src/mesa/state_tracker/st_cb_xformfb.c new file mode 100644 index 000000000..f4440a5f5 --- /dev/null +++ b/mesalib/src/mesa/state_tracker/st_cb_xformfb.c @@ -0,0 +1,133 @@ +/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc.
+ * 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 THE AUTHORS 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.
+ *
+ **************************************************************************/
+
+
+/**
+ * Transform feedback functions.
+ *
+ * \author Brian Paul
+ */
+
+
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/transformfeedback.h"
+
+#include "st_cb_xformfb.h"
+
+
+#if FEATURE_EXT_transform_feedback
+
+#if 0
+static struct gl_transform_feedback_object *
+st_new_transform_feedback(struct gl_context *ctx, GLuint name)
+{
+ struct gl_transform_feedback_object *obj;
+ obj = CALLOC_STRUCT(gl_transform_feedback_object);
+ if (obj) {
+ obj->Name = name;
+ obj->RefCount = 1;
+ }
+ return obj;
+}
+#endif
+
+#if 0
+static void
+st_delete_transform_feedback(struct gl_context *ctx,
+ struct gl_transform_feedback_object *obj)
+{
+ GLuint i;
+
+ for (i = 0; i < Elements(obj->Buffers); i++) {
+ _mesa_reference_buffer_object(ctx, &obj->Buffers[i], NULL);
+ }
+
+ free(obj);
+}
+#endif
+
+
+static void
+st_begin_transform_feedback(struct gl_context *ctx, GLenum mode,
+ struct gl_transform_feedback_object *obj)
+{
+ /* to-do */
+}
+
+
+static void
+st_end_transform_feedback(struct gl_context *ctx,
+ struct gl_transform_feedback_object *obj)
+{
+ /* to-do */
+}
+
+
+static void
+st_pause_transform_feedback(struct gl_context *ctx,
+ struct gl_transform_feedback_object *obj)
+{
+ /* to-do */
+}
+
+
+static void
+st_resume_transform_feedback(struct gl_context *ctx,
+ struct gl_transform_feedback_object *obj)
+{
+ /* to-do */
+}
+
+
+static void
+st_draw_transform_feedback(struct gl_context *ctx, GLenum mode,
+ struct gl_transform_feedback_object *obj)
+{
+ /* XXX to do */
+ /*
+ * Get number of vertices in obj's feedback buffer.
+ * Call ctx->Exec.DrawArrays(mode, 0, count);
+ */
+}
+
+
+void
+st_init_xformfb_functions(struct dd_function_table *functions)
+{
+ /* let core Mesa plug in its functions */
+ _mesa_init_transform_feedback_functions(functions);
+
+ /* then override a few: */
+ functions->BeginTransformFeedback = st_begin_transform_feedback;
+ functions->EndTransformFeedback = st_end_transform_feedback;
+ functions->PauseTransformFeedback = st_pause_transform_feedback;
+ functions->ResumeTransformFeedback = st_resume_transform_feedback;
+ functions->DrawTransformFeedback = st_draw_transform_feedback;
+}
+
+#endif /* FEATURE_EXT_transform_feedback */
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