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[GPU] Rename PrimitiveTwoFaced to PrimitivePolygonal, add rects to it and ignore fill modes for non-polygons

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Triang3l
2020-11-19 23:55:49 +03:00
parent 3ff5965133
commit 44a3f200c3
6 changed files with 38 additions and 28 deletions
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11
src/xenia/gpu/xenos.h
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@@ -64,7 +64,15 @@ enum class PrimitiveType : uint32_t {
kQuadPatch = 0x12,
};
inline bool IsPrimitiveTwoFaced(bool tessellated, PrimitiveType type) {
// Polygonal primitive types (not including points and lines) are rasterized as
// triangles, have front and back faces, and also support face culling and fill
// modes (polymode_front_ptype, polymode_back_ptype). Other primitive types are
// always "front" (but don't support front face and back face culling, according
// to OpenGL and Vulkan specifications - even if glCullFace is
// GL_FRONT_AND_BACK, points and lines are still drawn), and may in some cases
// use the "para" registers instead of "front" or "back" (for "parallelogram" -
// like poly_offset_para_enable).
constexpr bool IsPrimitivePolygonal(bool tessellated, PrimitiveType type) {
if (tessellated && (type == PrimitiveType::kTrianglePatch ||
type == PrimitiveType::kQuadPatch)) {
return true;
@@ -74,6 +82,7 @@ inline bool IsPrimitiveTwoFaced(bool tessellated, PrimitiveType type) {
case PrimitiveType::kTriangleFan:
case PrimitiveType::kTriangleStrip:
case PrimitiveType::kTriangleWithWFlags:
case PrimitiveType::kRectangleList:
case PrimitiveType::kQuadList:
case PrimitiveType::kQuadStrip:
case PrimitiveType::kPolygon: