Import a classic DRI driver for nv0x-nv2x.

1 files changed, 172 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_bufferobj.c b/src/mesa/drivers/dri/nouveau/nouveau_bufferobj.c
new file mode 100644
index 0000000000..1118b96de1
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_bufferobj.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * 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 "nouveau_driver.h"
+#include "nouveau_bufferobj.h"
+#include "nouveau_context.h"
+
+#include "main/bufferobj.h"
+
+static struct gl_buffer_object *
+nouveau_bufferobj_new(GLcontext *ctx, GLuint buffer, GLenum target)
+{
+	struct nouveau_bufferobj *nbo;
+
+	nbo = CALLOC_STRUCT(nouveau_bufferobj);
+	if (!nbo)
+		return NULL;
+
+	_mesa_initialize_buffer_object(&nbo->base, buffer, target);
+
+	return &nbo->base;
+}
+
+static void
+nouveau_bufferobj_del(GLcontext *ctx, struct gl_buffer_object *obj)
+{
+	struct nouveau_bufferobj *nbo = to_nouveau_bufferobj(obj);
+
+	nouveau_bo_ref(NULL, &nbo->bo);
+	FREE(nbo);
+}
+
+static GLboolean
+nouveau_bufferobj_data(GLcontext *ctx, GLenum target, GLsizeiptrARB size,
+		       const GLvoid *data, GLenum usage,
+		       struct gl_buffer_object *obj)
+{
+	struct nouveau_bufferobj *nbo = to_nouveau_bufferobj(obj);
+	int ret;
+
+	obj->Size = size;
+	obj->Usage = usage;
+
+	nouveau_bo_ref(NULL, &nbo->bo);
+	ret = nouveau_bo_new(context_dev(ctx),
+			     NOUVEAU_BO_GART | NOUVEAU_BO_MAP, 0,
+			     size, &nbo->bo);
+	assert(!ret);
+
+	if (data) {
+		nouveau_bo_map(nbo->bo, NOUVEAU_BO_WR);
+		_mesa_memcpy(nbo->bo->map, data, size);
+		nouveau_bo_unmap(nbo->bo);
+	}
+
+	return GL_TRUE;
+}
+
+static void
+nouveau_bufferobj_subdata(GLcontext *ctx, GLenum target, GLintptrARB offset,
+			  GLsizeiptrARB size, const GLvoid *data,
+			  struct gl_buffer_object *obj)
+{
+	struct nouveau_bufferobj *nbo = to_nouveau_bufferobj(obj);
+
+	nouveau_bo_map(nbo->bo, NOUVEAU_BO_WR);
+	_mesa_memcpy(nbo->bo->map + offset, data, size);
+	nouveau_bo_unmap(nbo->bo);
+}
+
+static void
+nouveau_bufferobj_get_subdata(GLcontext *ctx, GLenum target, GLintptrARB offset,
+			   GLsizeiptrARB size, GLvoid *data,
+			   struct gl_buffer_object *obj)
+{
+	struct nouveau_bufferobj *nbo = to_nouveau_bufferobj(obj);
+
+	nouveau_bo_map(nbo->bo, NOUVEAU_BO_RD);
+	_mesa_memcpy(data, nbo->bo->map + offset, size);
+	nouveau_bo_unmap(nbo->bo);
+}
+
+static void *
+nouveau_bufferobj_map(GLcontext *ctx, GLenum target, GLenum access,
+		   struct gl_buffer_object *obj)
+{
+	return ctx->Driver.MapBufferRange(ctx, target, 0, obj->Size, access,
+					  obj);
+}
+
+static void *
+nouveau_bufferobj_map_range(GLcontext *ctx, GLenum target, GLintptr offset,
+			    GLsizeiptr length, GLenum access,
+			    struct gl_buffer_object *obj)
+{
+	struct nouveau_bufferobj *nbo = to_nouveau_bufferobj(obj);
+	uint32_t flags = 0;
+
+	assert(!obj->Pointer);
+
+	if (!nbo->bo)
+		return NULL;
+
+	if (access == GL_READ_ONLY_ARB ||
+	    access == GL_READ_WRITE_ARB)
+		flags |= NOUVEAU_BO_RD;
+	if (access == GL_WRITE_ONLY_ARB ||
+	    access == GL_READ_WRITE_ARB)
+		flags |= NOUVEAU_BO_WR;
+
+	nouveau_bo_map_range(nbo->bo, offset, length, flags);
+
+	obj->Pointer = nbo->bo->map;
+	obj->Offset = offset;
+	obj->Length = length;
+	obj->AccessFlags = access;
+
+	return obj->Pointer;
+}
+
+static GLboolean
+nouveau_bufferobj_unmap(GLcontext *ctx, GLenum target, struct gl_buffer_object *obj)
+{
+	struct nouveau_bufferobj *nbo = to_nouveau_bufferobj(obj);
+
+	assert(obj->Pointer);
+
+	nouveau_bo_unmap(nbo->bo);
+
+	obj->Pointer = NULL;
+	obj->Offset = 0;
+	obj->Length = 0;
+	obj->AccessFlags = 0;
+
+	return GL_TRUE;
+}
+
+void
+nouveau_bufferobj_functions_init(struct dd_function_table *functions)
+{
+	functions->NewBufferObject = nouveau_bufferobj_new;
+	functions->DeleteBuffer	= nouveau_bufferobj_del;
+	functions->BufferData = nouveau_bufferobj_data;
+	functions->BufferSubData = nouveau_bufferobj_subdata;
+	functions->GetBufferSubData = nouveau_bufferobj_get_subdata;
+	functions->MapBuffer = nouveau_bufferobj_map;
+	functions->MapBufferRange = nouveau_bufferobj_map_range;
+	functions->UnmapBuffer = nouveau_bufferobj_unmap;
+}