Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/opensubdiv/osd/hlslPatchShaderSource.cpp

@@ -0,0 +1,152 @@
+//
+//   Copyright 2015 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#include "../osd/hlslPatchShaderSource.h"
+#include "../far/error.h"
+
+#include <sstream>
+#include <string>
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+namespace Osd {
+
+static const char *commonShaderSource =
+#include "hlslPatchCommon.gen.h"
+;
+static const char *commonTessShaderSource =
+#include "hlslPatchCommonTess.gen.h"
+;
+static const char *patchLegacyShaderSource =
+#include "hlslPatchLegacy.gen.h"
+;
+static const char *patchBasisTypesShaderSource =
+#include "patchBasisTypes.gen.h"
+;
+static const char *patchBasisShaderSource =
+#include "patchBasis.gen.h"
+;
+static const char *boxSplineTriangleShaderSource =
+#include "hlslPatchBoxSplineTriangle.gen.h"
+;
+static const char *bsplineShaderSource =
+#include "hlslPatchBSpline.gen.h"
+;
+static const char *gregoryShaderSource =
+#include "hlslPatchGregory.gen.h"
+;
+static const char *gregoryBasisShaderSource =
+#include "hlslPatchGregoryBasis.gen.h"
+;
+static const char *gregoryTriangleShaderSource =
+#include "hlslPatchGregoryTriangle.gen.h"
+;
+
+/*static*/
+std::string
+HLSLPatchShaderSource::GetPatchDrawingShaderSource() {
+    std::stringstream ss;
+    ss << std::string(commonShaderSource);
+    ss << std::string(commonTessShaderSource);
+    return ss.str();
+}
+
+/*static*/
+std::string
+HLSLPatchShaderSource::GetCommonShaderSource() {
+    std::stringstream ss;
+    ss << GetPatchDrawingShaderSource();
+    ss << std::string(patchLegacyShaderSource);
+    return ss.str();
+}
+
+/*static*/
+std::string
+HLSLPatchShaderSource::GetPatchBasisShaderSource() {
+    std::stringstream ss;
+#if defined(OPENSUBDIV_GREGORY_EVAL_TRUE_DERIVATIVES)
+    ss << "#define OPENSUBDIV_GREGORY_EVAL_TRUE_DERIVATIVES\n";
+#endif
+    ss << std::string(patchBasisTypesShaderSource);
+    ss << std::string(patchBasisShaderSource);
+    return ss.str();
+}
+
+/*static*/
+std::string
+HLSLPatchShaderSource::GetVertexShaderSource(Far::PatchDescriptor::Type type) {
+    switch (type) {
+    case Far::PatchDescriptor::REGULAR:
+        return bsplineShaderSource;
+    case Far::PatchDescriptor::LOOP:
+        return boxSplineTriangleShaderSource;
+    case Far::PatchDescriptor::GREGORY:
+        return gregoryShaderSource;
+    case Far::PatchDescriptor::GREGORY_BOUNDARY:
+        return std::string("#define OSD_PATCH_GREGORY_BOUNDRY\n")
+             + std::string(gregoryShaderSource);
+    case Far::PatchDescriptor::GREGORY_BASIS:
+        return gregoryBasisShaderSource;
+    case Far::PatchDescriptor::GREGORY_TRIANGLE:
+        return gregoryTriangleShaderSource;
+    default:
+        break;  // returns empty (points, lines, quads, ...)
+    }
+    return std::string();
+}
+
+/*static*/
+std::string
+HLSLPatchShaderSource::GetHullShaderSource(Far::PatchDescriptor::Type type) {
+    switch (type) {
+    case Far::PatchDescriptor::REGULAR:
+        return bsplineShaderSource;
+    case Far::PatchDescriptor::LOOP:
+        return boxSplineTriangleShaderSource;
+    case Far::PatchDescriptor::GREGORY:
+        return gregoryShaderSource;
+    case Far::PatchDescriptor::GREGORY_BOUNDARY:
+        return std::string("#define OSD_PATCH_GREGORY_BOUNDRY\n")
+             + std::string(gregoryShaderSource);
+    case Far::PatchDescriptor::GREGORY_BASIS:
+        return gregoryBasisShaderSource;
+    case Far::PatchDescriptor::GREGORY_TRIANGLE:
+        return gregoryTriangleShaderSource;
+    default:
+        break;  // returns empty (points, lines, quads, ...)
+    }
+    return std::string();
+}
+
+/*static*/
+std::string
+HLSLPatchShaderSource::GetDomainShaderSource(Far::PatchDescriptor::Type type) {
+    switch (type) {
+    case Far::PatchDescriptor::REGULAR:
+        return bsplineShaderSource;
+    case Far::PatchDescriptor::LOOP:
+        return boxSplineTriangleShaderSource;
+    case Far::PatchDescriptor::GREGORY:
+        return gregoryShaderSource;
+    case Far::PatchDescriptor::GREGORY_BOUNDARY:
+        return std::string("#define OSD_PATCH_GREGORY_BOUNDRY\n")
+             + std::string(gregoryShaderSource);
+    case Far::PatchDescriptor::GREGORY_BASIS:
+        return gregoryBasisShaderSource;
+    case Far::PatchDescriptor::GREGORY_TRIANGLE:
+        return gregoryTriangleShaderSource;
+    default:
+        break;  // returns empty (points, lines, quads, ...)
+    }
+    return std::string();
+}
+
+}  // end namespace Osd
+
+}  // end namespace OPENSUBDIV_VERSION
+} // end namespace OpenSubdiv