mesa/st: enable carry/borrow lowering pass

[mesa.git] / src / mesa / main / varray.h

diff --git a/src/mesa/main/varray.h b/src/mesa/main/varray.h
index a75cb7db8ea38e9a64b6c29869f4869129d6512b..f94ebac992033b556524377ce4253d050a8dacb0 100644 (file)
--- a/src/mesa/main/varray.h
+++ b/src/mesa/main/varray.h
@@ -51,8 +51,10 @@ _mesa_update_array_max_element(struct gl_client_array *array)
       GLsizeiptrARB bufSize = (GLsizeiptrARB) array->BufferObj->Size;
 
       if (offset < bufSize) {
-        array->_MaxElement = (bufSize - offset + array->StrideB
-                               - array->_ElementSize) / array->StrideB;
+         const GLuint stride = array->StrideB ?
+                                 array->StrideB : array->_ElementSize;
+         array->_MaxElement = (bufSize - offset + stride
+                                  - array->_ElementSize) / stride;
       }
       else {
         array->_MaxElement = 0;
@@ -71,12 +73,13 @@ _mesa_update_array_max_element(struct gl_client_array *array)
  * a vertex buffer.
  */
 static inline const GLubyte *
-_mesa_vertex_attrib_address(struct gl_vertex_attrib_array *array,
-                            struct gl_vertex_buffer_binding *binding)
+_mesa_vertex_attrib_address(const struct gl_vertex_attrib_array *array,
+                            const struct gl_vertex_buffer_binding *binding)
 {
-   return (binding->BufferObj->Name == 0 ?
-           array->Ptr :
-           (const GLubyte *)(binding->Offset + array->RelativeOffset));
+   if (_mesa_is_bufferobj(binding->BufferObj))
+      return (const GLubyte *) (binding->Offset + array->RelativeOffset);
+   else
+      return array->Ptr;       
 }
 
 /**
@@ -86,8 +89,8 @@ _mesa_vertex_attrib_address(struct gl_vertex_attrib_array *array,
 static inline void
 _mesa_update_client_array(struct gl_context *ctx,
                           struct gl_client_array *dst,
-                          struct gl_vertex_attrib_array *src,
-                          struct gl_vertex_buffer_binding *binding)
+                          const struct gl_vertex_attrib_array *src,
+                          const struct gl_vertex_buffer_binding *binding)
 {
    dst->Size = src->Size;
    dst->Type = src->Type;
@@ -103,16 +106,26 @@ _mesa_update_client_array(struct gl_context *ctx,
    _mesa_reference_buffer_object(ctx, &dst->BufferObj, binding->BufferObj);
 }
 
+static inline bool
+_mesa_attr_zero_aliases_vertex(struct gl_context *ctx)
+{
+   const bool is_forward_compatible_context =
+      ctx->Const.ContextFlags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
+
+   /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
+    * 2.0.  Note that we cannot just check for API_OPENGL_COMPAT here because
+    * that will erroneously allow this usage in a 3.0 forward-compatible
+    * context too.
+    */
+   return (ctx->API == API_OPENGLES
+           || (ctx->API == API_OPENGL_COMPAT
+               && !is_forward_compatible_context));
+}
+
 extern void GLAPIENTRY
 _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride,
                     const GLvoid *ptr);
 
-extern void GLAPIENTRY
-_mesa_UnlockArraysEXT( void );
-
-extern void GLAPIENTRY
-_mesa_LockArraysEXT(GLint first, GLsizei count);
-
 
 extern void GLAPIENTRY
 _mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr);
@@ -293,6 +306,10 @@ extern void GLAPIENTRY
 _mesa_BindVertexBuffer(GLuint bindingIndex, GLuint buffer, GLintptr offset,
                        GLsizei stride);
 
+extern void GLAPIENTRY
+_mesa_BindVertexBuffers(GLuint first, GLsizei count, const GLuint *buffers,
+                        const GLintptr *offsets, const GLsizei *strides);
+
 extern void GLAPIENTRY
 _mesa_VertexAttribFormat(GLuint attribIndex, GLint size, GLenum type,
                          GLboolean normalized, GLuint relativeOffset);