mesa: add KHR_no_error support for glBufferSubData()

Reviewed-by: Nicolai Hähnle <[email protected]>

2 files changed, 20 insertions, 3 deletions

diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 3e903cb3c29..461d69779a1 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -1872,9 +1872,14 @@ buffer_sub_data(GLenum target, GLuint buffer, GLintptr offset,
             return;
       }
    } else {
-      bufObj = get_buffer(ctx, func, target, GL_INVALID_OPERATION);
-      if (!bufObj)
-         return;
+      if (no_error) {
+         struct gl_buffer_object **bufObjPtr = get_buffer_target(ctx, target);
+         bufObj = *bufObjPtr;
+      } else {
+         bufObj = get_buffer(ctx, func, target, GL_INVALID_OPERATION);
+         if (!bufObj)
+            return;
+      }
    }
 
    if (no_error || validate_buffer_sub_data(ctx, bufObj, offset, size, func))
@@ -1883,6 +1888,15 @@ buffer_sub_data(GLenum target, GLuint buffer, GLintptr offset,
 
 
 void GLAPIENTRY
+_mesa_BufferSubData_no_error(GLenum target, GLintptr offset,
+                             GLsizeiptr size, const GLvoid *data)
+{
+   buffer_sub_data(target, 0, offset, size, data, false, true,
+                   "glBufferSubData");
+}
+
+
+void GLAPIENTRY
 _mesa_BufferSubData(GLenum target, GLintptr offset,
                     GLsizeiptr size, const GLvoid *data)
 {
diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index b3cfcc0a4a3..f652ec30d05 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -193,6 +193,9 @@ _mesa_NamedBufferData(GLuint buffer, GLsizeiptr size,
                       const GLvoid *data, GLenum usage);
 
 void GLAPIENTRY
+_mesa_BufferSubData_no_error(GLenum target, GLintptr offset,
+                             GLsizeiptr size, const GLvoid *data);
+void GLAPIENTRY
 _mesa_BufferSubData(GLenum target, GLintptr offset,
                     GLsizeiptr size, const GLvoid *data);