[Mesa-dev] [PATCH] mesa/main: TexImage2DMultisample needs to pass OpenGL3.3 conformance test.

[Marius Predut]

Open GL 3.3 reference document says:
samples must be in the range zero to GL_MAX_TEXTURE_SIZE - 1.
Open GL.4 clearly states:
An INVALID_VALUE error is generated if samples is zero.

Fixing the piglit test case gl-3.2-layered-rendering-framebuffertexture.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93100

Signed-off-by: Marius Predut <marius.predut at intel.com>
---
 src/mesa/main/teximage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index d9453e3..69634ff 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -5211,7 +5211,7 @@ texture_image_multisample(struct gl_context *ctx, GLuint dims,
       return;
    }
 
-   if (samples < 1) {
+   if (samples < 1 && ctx->API == API_OPENGL_CORE && ctx->Version >= 40) {
       _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples < 1)", func);
       return;
    }
-- 
1.9.1