Mesa (master): mesa: Make back_to_front_if_single_buffered non-static

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Module: Mesa
Branch: master
Commit: c512eca4daf75185db6f5d95b845d99bdc428950
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c512eca4daf75185db6f5d95b845d99bdc428950

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Mon Oct 14 10:07:11 2019 -0700

mesa: Make back_to_front_if_single_buffered non-static

So I can use it in fbobject.c in the next commit.

Reviewed-by: Kristian H. Kristensen <hoegsberg at google.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>

---

 src/mesa/main/buffers.c | 10 +++++-----
 src/mesa/main/buffers.h |  4 ++++
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c
index f6a347911c7..5dc00116ead 100644
--- a/src/mesa/main/buffers.c
+++ b/src/mesa/main/buffers.c
@@ -85,9 +85,9 @@ supported_buffer_bitmask(const struct gl_context *ctx,
    return mask;
 }
 
-static GLenum
-back_to_front_if_single_buffered(const struct gl_framebuffer *fb,
-                                 GLenum buffer)
+GLenum
+_mesa_back_to_front_if_single_buffered(const struct gl_framebuffer *fb,
+                                       GLenum buffer)
 {
    /* If the front buffer is the only buffer, GL_BACK and all other flags
     * that include BACK select the front buffer for drawing. There are
@@ -136,7 +136,7 @@ back_to_front_if_single_buffered(const struct gl_framebuffer *fb,
 static GLbitfield
 draw_buffer_enum_to_bitmask(const struct gl_context *ctx, GLenum buffer)
 {
-   buffer = back_to_front_if_single_buffered(ctx->DrawBuffer, buffer);
+   buffer = _mesa_back_to_front_if_single_buffered(ctx->DrawBuffer, buffer);
 
    switch (buffer) {
       case GL_NONE:
@@ -201,7 +201,7 @@ draw_buffer_enum_to_bitmask(const struct gl_context *ctx, GLenum buffer)
 static gl_buffer_index
 read_buffer_enum_to_index(const struct gl_context *ctx, GLenum buffer)
 {
-   buffer = back_to_front_if_single_buffered(ctx->ReadBuffer, buffer);
+   buffer = _mesa_back_to_front_if_single_buffered(ctx->ReadBuffer, buffer);
 
    switch (buffer) {
       case GL_FRONT:
diff --git a/src/mesa/main/buffers.h b/src/mesa/main/buffers.h
index c24b636e19d..28e26b57558 100644
--- a/src/mesa/main/buffers.h
+++ b/src/mesa/main/buffers.h
@@ -78,6 +78,10 @@ _mesa_readbuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
 extern void
 _mesa_update_draw_buffers(struct gl_context *ctx);
 
+extern GLenum
+_mesa_back_to_front_if_single_buffered(const struct gl_framebuffer *fb,
+                                       GLenum buffer);
+
 void GLAPIENTRY
 _mesa_ReadBuffer_no_error(GLenum mode);