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authorBen Skeggs <[email protected]>2008-06-23 00:01:17 +1000
committerBen Skeggs <[email protected]>2008-06-23 00:01:17 +1000
commitaa3ab377e6e2e5811cdd704d87c3e24acb5eff72 (patch)
treeab8a443a58a58a6b88f35d4b5730ed1292e44d26 /src/mesa/main/multisample.c
parent8c26a521ee80f5d8a1d0aabd0910233aad400322 (diff)
parente2c3f06e9649b5b87fc9adbca7d1f07841bba895 (diff)
Merge remote branch 'upstream/gallium-0.1' into nouveau-gallium-0.1
Conflicts: configs/default
Diffstat (limited to 'src/mesa/main/multisample.c')
-rw-r--r--src/mesa/main/multisample.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/mesa/main/multisample.c b/src/mesa/main/multisample.c
new file mode 100644
index 00000000000..e138087436e
--- /dev/null
+++ b/src/mesa/main/multisample.c
@@ -0,0 +1,66 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/macros.h"
+#include "main/multisample.h"
+
+
+/**
+ * Called via glSampleCoverageARB
+ */
+void GLAPIENTRY
+_mesa_SampleCoverageARB(GLclampf value, GLboolean invert)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (!ctx->Extensions.ARB_multisample) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glSampleCoverageARB");
+ return;
+ }
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx );
+
+ ctx->Multisample.SampleCoverageValue = (GLfloat) CLAMP(value, 0.0, 1.0);
+ ctx->Multisample.SampleCoverageInvert = invert;
+ ctx->NewState |= _NEW_MULTISAMPLE;
+}
+
+
+/**
+ * Initialize the context's multisample state.
+ * \param ctx the GL context.
+ */
+void
+_mesa_init_multisample(GLcontext *ctx)
+{
+ ctx->Multisample.Enabled = GL_FALSE;
+ ctx->Multisample.SampleAlphaToCoverage = GL_FALSE;
+ ctx->Multisample.SampleAlphaToOne = GL_FALSE;
+ ctx->Multisample.SampleCoverage = GL_FALSE;
+ ctx->Multisample.SampleCoverageValue = 1.0;
+ ctx->Multisample.SampleCoverageInvert = GL_FALSE;
+}