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-rw-r--r--src/mesa/main/blit.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/src/mesa/main/blit.c b/src/mesa/main/blit.c
index abc553966e9..5729e601c12 100644
--- a/src/mesa/main/blit.c
+++ b/src/mesa/main/blit.c
@@ -286,8 +286,17 @@ _mesa_blit_framebuffer(struct gl_context *ctx,
}
/* extra checks for multisample copies... */
if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
- /* color formats must match */
- if (!compatible_resolve_formats(colorReadRb, colorDrawRb)) {
+ /* color formats must match on GLES. This isn't checked on
+ * desktop GL because the GL 4.4 spec was changed to allow it.
+ * In the section entitled “Changes in the released
+ * Specification of July 22, 2013” it says:
+ *
+ * “Relax BlitFramebuffer in section 18.3.1 so that format
+ * conversion can take place during multisample blits, since
+ * drivers already allow this and some apps depend on it.”
+ */
+ if (_mesa_is_gles(ctx) &&
+ !compatible_resolve_formats(colorReadRb, colorDrawRb)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(bad src/dst multisample pixel formats)", func);
return;