[Mesa-stable] [PATCH] mesa: Don't use memcpy() in _mesa_texstore() for depth texture data

[Anuj Phogat]

because depth texture data needs clamping to [0.0, 1.0]. Let the
_mesa_texstore() fallback to slower path.

Fixes Khronos GLES3 CTS tests:
shadow_execution_vert
shadow_execution_frag

Cc: <mesa-stable at lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
---
 src/mesa/main/texstore.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index d363f9f..4bed62a 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -3790,8 +3790,8 @@ _mesa_texstore_needs_transfer_ops(struct gl_context *ctx,
    switch (baseInternalFormat) {
    case GL_DEPTH_COMPONENT:
    case GL_DEPTH_STENCIL:
-      return ctx->Pixel.DepthScale != 1.0f ||
-             ctx->Pixel.DepthBias != 0.0f;
+      /* Depth texture data needs clamping to [0.0, 1.0]. */
+      return GL_TRUE;
 
    case GL_STENCIL_INDEX:
       return GL_FALSE;
-- 
1.9.3