Mesa (master): mesa: implement _mesa_GenVertexArrays() for GL_ARB_vertex_array_object
Brian Paul
brianp at kemper.freedesktop.org
Fri Jun 26 23:50:19 UTC 2009
Module: Mesa
Branch: master
Commit: 9342e6f5a94d3b884dcb98b4741295f1aa23e282
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=9342e6f5a94d3b884dcb98b4741295f1aa23e282
Author: Brian Paul <brianp at vmware.com>
Date: Fri Jun 19 18:17:25 2009 -0600
mesa: implement _mesa_GenVertexArrays() for GL_ARB_vertex_array_object
This also involves adding a gl_array_object::VBOonly field. For the
ARB extension, all arrays in the object must reside in a VBO. This flag
keeps track of that requirement.
---
src/mesa/main/arrayobj.c | 33 +++++++++++++++++++++++++++++----
src/mesa/main/arrayobj.h | 2 ++
src/mesa/main/mtypes.h | 1 +
3 files changed, 32 insertions(+), 4 deletions(-)
diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c
index ae9db21..fd35d4e 100644
--- a/src/mesa/main/arrayobj.c
+++ b/src/mesa/main/arrayobj.c
@@ -485,14 +485,14 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids)
/**
* Generate a set of unique array object IDs and store them in \c arrays.
- *
+ * Helper for _mesa_GenVertexArrays[APPLE]() functions below.
* \param n Number of IDs to generate.
* \param arrays Array of \c n locations to store the IDs.
+ * \param vboOnly Will arrays have to reside in VBOs?
*/
-void GLAPIENTRY
-_mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays)
+static void
+gen_vertex_arrays(GLcontext *ctx, GLsizei n, GLuint *arrays, GLboolean vboOnly)
{
- GET_CURRENT_CONTEXT(ctx);
GLuint first;
GLint i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -518,6 +518,7 @@ _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays)
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenVertexArraysAPPLE");
return;
}
+ obj->VBOonly = vboOnly;
save_array_object(ctx, obj);
arrays[i] = first + i;
}
@@ -525,6 +526,30 @@ _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays)
/**
+ * ARB version of glGenVertexArrays()
+ * All arrays will be required to live in VBOs.
+ */
+void GLAPIENTRY
+_mesa_GenVertexArrays(GLsizei n, GLuint *arrays)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ gen_vertex_arrays(ctx, n, arrays, GL_TRUE);
+}
+
+
+/**
+ * APPLE version of glGenVertexArraysAPPLE()
+ * Arrays may live in VBOs or ordinary memory.
+ */
+void GLAPIENTRY
+_mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ gen_vertex_arrays(ctx, n, arrays, GL_FALSE);
+}
+
+
+/**
* Determine if ID is the name of an array object.
*
* \param id ID of the potential array object.
diff --git a/src/mesa/main/arrayobj.h b/src/mesa/main/arrayobj.h
index e2f156d..8999edc 100644
--- a/src/mesa/main/arrayobj.h
+++ b/src/mesa/main/arrayobj.h
@@ -74,6 +74,8 @@ void GLAPIENTRY _mesa_BindVertexArrayAPPLE( GLuint id );
void GLAPIENTRY _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids);
+void GLAPIENTRY _mesa_GenVertexArrays(GLsizei n, GLuint *arrays);
+
void GLAPIENTRY _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *buffer);
GLboolean GLAPIENTRY _mesa_IsVertexArrayAPPLE( GLuint id );
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 69a23fe..0d082cb 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1563,6 +1563,7 @@ struct gl_array_object
GLint RefCount;
_glthread_Mutex Mutex;
+ GLboolean VBOonly; /**< require all arrays to live in VBOs? */
/** Conventional vertex arrays */
/*@{*/
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