Add Chromium-only Blender WebEngine parity work

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

@@ -0,0 +1,206 @@
+//
+//   Copyright 2015 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#include "../osd/glslPatchShaderSource.h"
+#include <sstream>
+#include <string>
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+namespace Osd {
+
+static const char *commonShaderSource =
+#include "glslPatchCommon.gen.h"
+;
+static const char *commonTessShaderSource =
+#include "glslPatchCommonTess.gen.h"
+;
+static const char *patchLegacyShaderSource =
+#include "glslPatchLegacy.gen.h"
+;
+static const char *patchBasisTypesShaderSource =
+#include "patchBasisTypes.gen.h"
+;
+static const char *patchBasisShaderSource =
+#include "patchBasis.gen.h"
+;
+static const char *boxSplineTriangleShaderSource =
+#include "glslPatchBoxSplineTriangle.gen.h"
+;
+static const char *bsplineShaderSource =
+#include "glslPatchBSpline.gen.h"
+;
+static const char *gregoryShaderSource =
+#include "glslPatchGregory.gen.h"
+;
+static const char *gregoryBasisShaderSource =
+#include "glslPatchGregoryBasis.gen.h"
+;
+static const char *gregoryTriangleShaderSource =
+#include "glslPatchGregoryTriangle.gen.h"
+;
+
+/*static*/
+std::string
+GLSLPatchShaderSource::GetPatchDrawingShaderSource() {
+    std::stringstream ss;
+    ss << std::string(commonShaderSource);
+    ss << std::string(commonTessShaderSource);
+    return ss.str();
+}
+
+/*static*/
+std::string
+GLSLPatchShaderSource::GetCommonShaderSource() {
+    std::stringstream ss;
+    ss << GetPatchDrawingShaderSource();
+    ss << std::string(patchLegacyShaderSource);
+    return ss.str();
+}
+
+/*static*/
+std::string
+GLSLPatchShaderSource::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
+GLSLPatchShaderSource::GetVertexShaderSource(Far::PatchDescriptor::Type type) {
+    std::stringstream ss;
+    switch (type) {
+    case Far::PatchDescriptor::REGULAR:
+        ss << "#define OSD_PATCH_BSPLINE\n"
+           << "#define OSD_PATCH_VERTEX_BSPLINE_SHADER\n"
+           << bsplineShaderSource;
+        break;
+    case Far::PatchDescriptor::LOOP:
+        ss << "#define OSD_PATCH_BOX_SPLINE_TRIANGLE\n"
+           << "#define OSD_PATCH_VERTEX_BOX_SPLINE_TRIANGLE_SHADER\n"
+           << boxSplineTriangleShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY:
+        ss << "#define OSD_PATCH_GREGORY\n"
+           << "#define OSD_PATCH_VERTEX_GREGORY_SHADER\n"
+           << gregoryShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_BOUNDARY:
+        ss << "#define OSD_PATCH_GREGORY_BOUNDARY\n"
+           << "#define OSD_PATCH_VERTEX_GREGORY_SHADER\n"
+           << gregoryShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_BASIS:
+        ss << "#define OSD_PATCH_GREGORY_BASIS\n"
+           << "#define OSD_PATCH_VERTEX_GREGORY_BASIS_SHADER\n"
+           << gregoryBasisShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_TRIANGLE:
+        ss << "#define OSD_PATCH_GREGORY_TRIANGLE\n"
+           << "#define OSD_PATCH_VERTEX_GREGORY_TRIANGLE_SHADER\n"
+           << gregoryTriangleShaderSource;
+        break;
+    default:
+        break;  // returns empty (points, lines, quads, ...)
+    }
+    return ss.str();
+}
+
+/*static*/
+std::string
+GLSLPatchShaderSource::GetTessControlShaderSource(
+    Far::PatchDescriptor::Type type) {
+    std::stringstream ss;
+    switch (type) {
+    case Far::PatchDescriptor::REGULAR:
+        ss << "#define OSD_PATCH_BSPLINE\n"
+           << "#define OSD_PATCH_TESS_CONTROL_BSPLINE_SHADER\n"
+           << bsplineShaderSource;
+        break;
+    case Far::PatchDescriptor::LOOP:
+        ss << "#define OSD_PATCH_BOX_SPLINE_TRIANGLE\n"
+           << "#define OSD_PATCH_TESS_CONTROL_BOX_SPLINE_TRIANGLE_SHADER\n"
+           << boxSplineTriangleShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY:
+        ss << "#define OSD_PATCH_GREGORY\n"
+           << "#define OSD_PATCH_TESS_CONTROL_GREGORY_SHADER\n"
+           << gregoryShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_BOUNDARY:
+        ss << "#define OSD_PATCH_GREGORY_BOUNDARY\n"
+           << "#define OSD_PATCH_TESS_CONTROL_GREGORY_SHADER\n"
+           << gregoryShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_BASIS:
+        ss << "#define OSD_PATCH_GREGORY_BASIS\n"
+           << "#define OSD_PATCH_TESS_CONTROL_GREGORY_BASIS_SHADER\n"
+           << gregoryBasisShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_TRIANGLE:
+        ss << "#define OSD_PATCH_GREGORY_TRIANGLE\n"
+           << "#define OSD_PATCH_TESS_CONTROL_GREGORY_TRIANGLE_SHADER\n"
+           << gregoryTriangleShaderSource;
+        break;
+    default:
+        break;  // returns empty (points, lines, quads, ...)
+    }
+    return ss.str();
+}
+
+/*static*/
+std::string
+GLSLPatchShaderSource::GetTessEvalShaderSource(
+    Far::PatchDescriptor::Type type) {
+    std::stringstream ss;
+    switch (type) {
+    case Far::PatchDescriptor::REGULAR:
+        ss << "#define OSD_PATCH_BSPLINE\n"
+           << "#define OSD_PATCH_TESS_EVAL_BSPLINE_SHADER\n"
+           << bsplineShaderSource;
+        break;
+    case Far::PatchDescriptor::LOOP:
+        ss << "#define OSD_PATCH_BOX_SPLINE_TRIANGLE\n"
+           << "#define OSD_PATCH_TESS_EVAL_BOX_SPLINE_TRIANGLE_SHADER\n"
+           << boxSplineTriangleShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY:
+        ss << "#define OSD_PATCH_GREGORY\n"
+           << "#define OSD_PATCH_TESS_EVAL_GREGORY_SHADER\n"
+           << gregoryShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_BOUNDARY:
+        ss << "#define OSD_PATCH_GREGORY_BOUNDARY\n"
+           << "#define OSD_PATCH_TESS_EVAL_GREGORY_SHADER\n"
+           << gregoryShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_BASIS:
+        ss << "#define OSD_PATCH_GREGORY_BASIS\n"
+           << "#define OSD_PATCH_TESS_EVAL_GREGORY_BASIS_SHADER\n"
+           << gregoryBasisShaderSource;
+        break;
+    case Far::PatchDescriptor::GREGORY_TRIANGLE:
+        ss << "#define OSD_PATCH_GREGORY_TRIANGLE\n"
+           << "#define OSD_PATCH_TESS_EVAL_GREGORY_TRIANGLE_SHADER\n"
+           << gregoryTriangleShaderSource;
+        break;
+    default:
+        break;  // returns empty (points, lines, quads, ...)
+    }
+    return ss.str();
+}
+
+}  // end namespace Osd
+
+}  // end namespace OPENSUBDIV_VERSION
+} // end namespace OpenSubdiv