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-rw-r--r--src/mesa/main/texparam.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 695bff0097..41c914e5b3 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -368,6 +368,11 @@ set_tex_parameteri(GLcontext *ctx,
if (ctx->Extensions.EXT_texture_swizzle) {
const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
const GLint swz = comp_to_swizzle(params[0]);
+ if (swz < 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexParameter(swizzle 0x%x)", params[0]);
+ return;
+ }
ASSERT(comp < 4);
if (swz >= 0) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
@@ -390,8 +395,8 @@ set_tex_parameteri(GLcontext *ctx,
set_swizzle_component(&texObj->_Swizzle, comp, swz);
}
else {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",
- params[comp]);
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexParameter(swizzle 0x%x)", params[comp]);
return;
}
}