radeon: add VBO support (not enabled yet)

3 files changed, 271 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/r300/Makefile b/src/mesa/drivers/dri/r300/Makefile
index 95c6765bc4..2390d1896a 100644
--- a/src/mesa/drivers/dri/r300/Makefile
+++ b/src/mesa/drivers/dri/r300/Makefile
@@ -36,7 +36,8 @@ RADEON_COMMON_SOURCES = \
 	radeon_cs_legacy.c \
 	radeon_mipmap_tree.c \
 	radeon_span.c \
-	radeon_fbo.c
+	radeon_fbo.c \
+	radeon_buffer_objects.c
 
 DRIVER_SOURCES = \
 		 radeon_screen.c \
diff --git a/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c
new file mode 100644
index 0000000000..1420636863
--- /dev/null
+++ b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.c
@@ -0,0 +1,217 @@
+/*
+ * Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
+ *
+ * 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, 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 COPYRIGHT OWNER(S) 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 "radeon_buffer_objects.h"
+
+#include "main/imports.h"
+#include "main/mtypes.h"
+#include "main/bufferobj.h"
+
+#include "radeon_common.h"
+
+struct radeon_buffer_object *
+get_radeon_buffer_object(struct gl_buffer_object *obj)
+{
+    return (struct radeon_buffer_object *) obj;
+}
+
+static struct gl_buffer_object *
+radeonNewBufferObject(GLcontext * ctx,
+                      GLuint name,
+                      GLenum target)
+{
+    struct radeon_buffer_object *obj = CALLOC_STRUCT(radeon_buffer_object);
+
+    _mesa_initialize_buffer_object(&obj->Base, name, target);
+
+    obj->bo = NULL;
+
+    return &obj->Base;
+}
+
+/**
+ * Called via glDeleteBuffersARB().
+ */
+static void
+radeonDeleteBufferObject(GLcontext * ctx,
+                         struct gl_buffer_object *obj)
+{
+    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
+
+    if (obj->Pointer) {
+        radeon_bo_unmap(radeon_obj->bo);
+    }
+
+    if (radeon_obj->bo) {
+        radeon_bo_unref(radeon_obj->bo);
+    }
+
+    _mesa_free(radeon_obj);
+}
+
+
+/**
+ * Allocate space for and store data in a buffer object.  Any data that was
+ * previously stored in the buffer object is lost.  If data is NULL,
+ * memory will be allocated, but no copy will occur.
+ * Called via glBufferDataARB().
+ */
+static void
+radeonBufferData(GLcontext * ctx,
+                 GLenum target,
+                 GLsizeiptrARB size,
+                 const GLvoid * data,
+                 GLenum usage,
+                 struct gl_buffer_object *obj)
+{
+    radeonContextPtr radeon = RADEON_CONTEXT(ctx);
+    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
+
+    radeon_obj->Base.Size = size;
+    radeon_obj->Base.Usage = usage;
+
+    if (radeon_obj->bo != NULL) {
+        radeon_bo_unref(radeon_obj->bo);
+        radeon_obj->bo = NULL;
+    }
+
+    if (size != 0) {
+        radeon_obj->bo = radeon_bo_open(radeon->radeonScreen->bom,
+                                        0,
+                                        size,
+                                        32,
+                                        RADEON_GEM_DOMAIN_GTT,
+                                        0);
+
+        if (data != NULL) {
+            radeon_bo_map(radeon_obj->bo, GL_TRUE);
+
+            _mesa_memcpy(radeon_obj->bo->ptr, data, size);
+
+            radeon_bo_unmap(radeon_obj->bo);
+        }
+    }
+}
+
+/**
+ * Replace data in a subrange of buffer object.  If the data range
+ * specified by size + offset extends beyond the end of the buffer or
+ * if data is NULL, no copy is performed.
+ * Called via glBufferSubDataARB().
+ */
+static void
+radeonBufferSubData(GLcontext * ctx,
+                    GLenum target,
+                    GLintptrARB offset,
+                    GLsizeiptrARB size,
+                    const GLvoid * data,
+                    struct gl_buffer_object *obj)
+{
+    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
+
+    radeon_bo_map(radeon_obj->bo, GL_TRUE);
+
+    _mesa_memcpy(radeon_obj->bo->ptr + offset, data, size);
+
+    radeon_bo_unmap(radeon_obj->bo);
+}
+
+/**
+ * Called via glGetBufferSubDataARB()
+ */
+static void
+radeonGetBufferSubData(GLcontext * ctx,
+                       GLenum target,
+                       GLintptrARB offset,
+                       GLsizeiptrARB size,
+                       GLvoid * data,
+                       struct gl_buffer_object *obj)
+{
+    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
+
+    radeon_bo_map(radeon_obj->bo, GL_FALSE);
+
+    _mesa_memcpy(data, radeon_obj->bo->ptr + offset, size);
+
+    radeon_bo_unmap(radeon_obj->bo);
+}
+
+/**
+ * Called via glMapBufferARB()
+ */
+static void *
+radeonMapBuffer(GLcontext * ctx,
+                GLenum target,
+                GLenum access,
+                struct gl_buffer_object *obj)
+{
+    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
+
+    if (access == GL_WRITE_ONLY_ARB) {
+        radeonFlush(ctx);
+    }
+
+    if (radeon_obj->bo == NULL) {
+        obj->Pointer = NULL;
+        return NULL;
+    }
+
+    radeon_bo_map(radeon_obj->bo, access == GL_WRITE_ONLY_ARB);
+
+    return obj->Pointer = radeon_obj->bo->ptr;
+}
+
+
+/**
+ * Called via glUnmapBufferARB()
+ */
+static GLboolean
+radeonUnmapBuffer(GLcontext * ctx,
+                  GLenum target,
+                  struct gl_buffer_object *obj)
+{
+    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);
+
+    if (radeon_obj->bo != NULL) {
+        radeon_bo_unmap(radeon_obj->bo);
+        obj->Pointer = NULL;
+    }
+
+    return GL_TRUE;
+}
+
+void
+radeonInitBufferObjectFuncs(struct dd_function_table *functions)
+{
+    functions->NewBufferObject = radeonNewBufferObject;
+    functions->DeleteBuffer = radeonDeleteBufferObject;
+    functions->BufferData = radeonBufferData;
+    functions->BufferSubData = radeonBufferSubData;
+    functions->GetBufferSubData = radeonGetBufferSubData;
+    functions->MapBuffer = radeonMapBuffer;
+    functions->UnmapBuffer = radeonUnmapBuffer;
+}
diff --git a/src/mesa/drivers/dri/radeon/radeon_buffer_objects.h b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.h
new file mode 100644
index 0000000000..d681960825
--- /dev/null
+++ b/src/mesa/drivers/dri/radeon/radeon_buffer_objects.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
+ *
+ * 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, 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 COPYRIGHT OWNER(S) 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.
+ *
+ */
+
+#ifndef RADEON_BUFFER_OBJECTS_H
+#define RADEON_BUFFER_OBJECTS_H
+
+#include "main/mtypes.h"
+
+struct radeon_bo;
+
+/**
+ * Radeon vertex/pixel buffer object, derived from Mesa's gl_buffer_object.
+ */
+struct radeon_buffer_object
+{
+   struct gl_buffer_object Base;
+   struct radeon_bo *bo;
+};
+
+struct radeon_buffer_object *
+get_radeon_buffer_object(struct gl_buffer_object *obj);
+
+/**
+ * Hook the bufferobject implementation into mesa:
+ */
+void radeonInitBufferObjectFuncs(struct dd_function_table *functions);
+
+#endif