From 135e5659bd882dc2a65f6cf58515c3c71d0515ed Mon Sep 17 00:00:00 2001
From: Timothy Arceri <tarceri@itsqueeze.com>
Date: Mon, 22 May 2017 15:46:57 +1000
Subject: [PATCH] mesa: split bind_buffer_range_shader_storage_buffer() in two
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This will help us implement KHR_no_error support.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
---
 src/mesa/main/bufferobj.c | 36 +++++++++++++++++++++++-------------
 1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 2c5d56b..132391b 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -3160,6 +3160,22 @@ bind_buffer_range_uniform_buffer_err(struct gl_context *ctx, GLuint index,
    bind_buffer_range_uniform_buffer(ctx, index, bufObj, offset, size);
 }
 
+static void
+bind_buffer_range_shader_storage_buffer(struct gl_context *ctx,
+                                        GLuint index,
+                                        struct gl_buffer_object *bufObj,
+                                        GLintptr offset,
+                                        GLsizeiptr size)
+{
+   if (bufObj == ctx->Shared->NullBufferObj) {
+      offset = -1;
+      size = -1;
+   }
+
+   _mesa_reference_buffer_object(ctx, &ctx->ShaderStorageBuffer, bufObj);
+   bind_shader_storage_buffer(ctx, index, bufObj, offset, size, GL_FALSE);
+}
+
 /**
  * Bind a region of a buffer object to a shader storage block binding point.
  * \param index  the shader storage buffer binding point index
@@ -3168,11 +3184,10 @@ bind_buffer_range_uniform_buffer_err(struct gl_context *ctx, GLuint index,
  * \param size  size of the buffer object region
  */
 static void
-bind_buffer_range_shader_storage_buffer(struct gl_context *ctx,
-                                        GLuint index,
-                                        struct gl_buffer_object *bufObj,
-                                        GLintptr offset,
-                                        GLsizeiptr size)
+bind_buffer_range_shader_storage_buffer_err(struct gl_context *ctx,
+                                            GLuint index,
+                                            struct gl_buffer_object *bufObj,
+                                            GLintptr offset, GLsizeiptr size)
 {
    if (index >= ctx->Const.MaxShaderStorageBufferBindings) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(index=%d)", index);
@@ -3186,13 +3201,7 @@ bind_buffer_range_shader_storage_buffer(struct gl_context *ctx,
       return;
    }
 
-   if (bufObj == ctx->Shared->NullBufferObj) {
-      offset = -1;
-      size = -1;
-   }
-
-   _mesa_reference_buffer_object(ctx, &ctx->ShaderStorageBuffer, bufObj);
-   bind_shader_storage_buffer(ctx, index, bufObj, offset, size, GL_FALSE);
+   bind_buffer_range_shader_storage_buffer(ctx, index, bufObj, offset, size);
 }
 
 /**
@@ -4025,7 +4034,8 @@ _mesa_BindBufferRange(GLenum target, GLuint index,
       bind_buffer_range_uniform_buffer_err(ctx, index, bufObj, offset, size);
       return;
    case GL_SHADER_STORAGE_BUFFER:
-      bind_buffer_range_shader_storage_buffer(ctx, index, bufObj, offset, size);
+      bind_buffer_range_shader_storage_buffer_err(ctx, index, bufObj, offset,
+                                                  size);
       return;
    case GL_ATOMIC_COUNTER_BUFFER:
       bind_atomic_buffer(ctx, index, bufObj, offset, size,
-- 
2.7.4