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Diffstat (limited to 'src/mesa/main/dd.h')
-rw-r--r--src/mesa/main/dd.h35
1 files changed, 32 insertions, 3 deletions
diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
index 411b6a7b21..d994401e55 100644
--- a/src/mesa/main/dd.h
+++ b/src/mesa/main/dd.h
@@ -36,6 +36,22 @@
struct gl_pixelstore_attrib;
struct gl_display_list;
+#if FEATURE_ARB_vertex_buffer_object
+/* Modifies GL_MAP_UNSYNCHRONIZED_BIT to allow driver to fail (return
+ * NULL) if buffer is unavailable for immediate mapping.
+ *
+ * Does GL_MAP_INVALIDATE_RANGE_BIT do this? It seems so, but it
+ * would require more book-keeping in the driver than seems necessary
+ * at this point.
+ *
+ * Does GL_MAP_INVALDIATE_BUFFER_BIT do this? Not really -- we don't
+ * want to provoke the driver to throw away the old storage, we will
+ * respect the contents of already referenced data.
+ */
+#define MESA_MAP_NOWAIT_BIT 0x0040
+#endif
+
+
/**
* Device driver function table.
* Core Mesa uses these function pointers to call into device drivers.
@@ -586,9 +602,6 @@ struct dd_function_table {
/** Notify driver that a program string has been specified. */
void (*ProgramStringNotify)(GLcontext *ctx, GLenum target,
struct gl_program *prog);
- /** Get value of a program register during program execution. */
- void (*GetProgramRegister)(GLcontext *ctx, enum register_file file,
- GLuint index, GLfloat val[4]);
/** Query if program can be loaded onto hardware */
GLboolean (*IsProgramNative)(GLcontext *ctx, GLenum target,
@@ -785,6 +798,16 @@ struct dd_function_table {
void * (*MapBuffer)( GLcontext *ctx, GLenum target, GLenum access,
struct gl_buffer_object *obj );
+ /* May return NULL if MESA_MAP_NOWAIT_BIT is set in access:
+ */
+ void * (*MapBufferRange)( GLcontext *ctx, GLenum target,
+ GLintptr offset, GLsizeiptr length, GLbitfield access,
+ struct gl_buffer_object *obj);
+
+ void (*FlushMappedBufferRange) (GLcontext *ctx, GLenum target,
+ GLintptr offset, GLsizeiptr length,
+ struct gl_buffer_object *obj);
+
GLboolean (*UnmapBuffer)( GLcontext *ctx, GLenum target,
struct gl_buffer_object *obj );
/*@}*/
@@ -954,6 +977,12 @@ struct dd_function_table {
GLuint NeedFlush;
GLuint SaveNeedFlush;
+
+ /* Called prior to any of the GLvertexformat functions being
+ * called. Paired with Driver.FlushVertices().
+ */
+ void (*BeginVertices)( GLcontext *ctx );
+
/**
* If inside glBegin()/glEnd(), it should ASSERT(0). Otherwise, if
* FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered