[MESA]

[reactos.git] / reactos / dll / opengl / mesa / vbo / vbo.h

diff --git a/reactos/dll/opengl/mesa/vbo/vbo.h b/reactos/dll/opengl/mesa/vbo/vbo.h
new file mode 100644 (file)
index 0000000..ed2c9f1
--- /dev/null
+++ b/reactos/dll/opengl/mesa/vbo/vbo.h
@@ -0,0 +1,143 @@
+/*
+ * mesa 3-D graphics library
+ * Version:  6.5
+ *
+ * Copyright (C) 1999-2006  Brian Paul   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 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
+ * BRIAN PAUL 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.
+ */
+
+/**
+ * \file vbo_context.h
+ * \brief VBO builder module datatypes and definitions.
+ * \author Keith Whitwell
+ */
+
+
+#ifndef _VBO_H
+#define _VBO_H
+
+#include "main/glheader.h"
+
+struct gl_client_array;
+struct gl_context;
+struct gl_transform_feedback_object;
+
+struct _mesa_prim {
+   GLuint mode:8;    /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
+   GLuint indexed:1;
+   GLuint begin:1;
+   GLuint end:1;
+   GLuint weak:1;
+   GLuint no_current_update:1;
+   GLuint pad:19;
+
+   GLuint start;
+   GLuint count;
+   GLsizei num_instances;
+};
+
+/* Would like to call this a "vbo_index_buffer", but this would be
+ * confusing as the indices are not neccessarily yet in a non-null
+ * buffer object.
+ */
+struct _mesa_index_buffer {
+   GLuint count;
+   GLenum type;
+   struct gl_buffer_object *obj;
+   const void *ptr;
+};
+
+
+
+GLboolean _vbo_CreateContext( struct gl_context *ctx );
+void _vbo_DestroyContext( struct gl_context *ctx );
+void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state );
+
+
+typedef void (*vbo_draw_func)( struct gl_context *ctx,
+                              const struct gl_client_array **arrays,
+                              const struct _mesa_prim *prims,
+                              GLuint nr_prims,
+                              const struct _mesa_index_buffer *ib,
+                              GLboolean index_bounds_valid,
+                              GLuint min_index,
+                              GLuint max_index);
+
+
+
+
+/* Utility function to cope with various constraints on tnl modules or
+ * hardware.  This can be used to split an incoming set of arrays and
+ * primitives against the following constraints:
+ *    - Maximum number of indices in index buffer.
+ *    - Maximum number of vertices referenced by index buffer.
+ *    - Maximum hardware vertex buffer size.
+ */
+struct split_limits {
+   GLuint max_verts;
+   GLuint max_indices;
+   GLuint max_vb_size;         /* bytes */
+};
+
+
+void vbo_split_prims( struct gl_context *ctx,
+                     const struct gl_client_array *arrays[],
+                     const struct _mesa_prim *prim,
+                     GLuint nr_prims,
+                     const struct _mesa_index_buffer *ib,
+                     GLuint min_index,
+                     GLuint max_index,
+                     vbo_draw_func draw,
+                     const struct split_limits *limits );
+
+
+/* Helpers for dealing translating away non-zero min_index.
+ */
+
+void vbo_rebase_prims( struct gl_context *ctx,
+                      const struct gl_client_array *arrays[],
+                      const struct _mesa_prim *prim,
+                      GLuint nr_prims,
+                      const struct _mesa_index_buffer *ib,
+                      GLuint min_index,
+                      GLuint max_index,
+                      vbo_draw_func draw );
+
+int
+vbo_sizeof_ib_type(GLenum type);
+
+void
+vbo_get_minmax_index(struct gl_context *ctx, const struct _mesa_prim *prim,
+                    const struct _mesa_index_buffer *ib,
+                    GLuint *min_index, GLuint *max_index);
+
+void vbo_use_buffer_objects(struct gl_context *ctx);
+
+void vbo_always_unmap_buffers(struct gl_context *ctx);
+
+void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func);
+
+void vbo_check_buffers_are_unmapped(struct gl_context *ctx);
+
+void vbo_bind_arrays(struct gl_context *ctx);
+
+size_t
+count_tessellated_primitives(const struct _mesa_prim *prim);
+
+#endif