(svn r26214) -Add: specialised animated SSE4 blitter (MJP)

With 32bpp base set about 15-20% faster in the Draw function (slower with 8bpp base set). Overall, with 32bpp base set, about 5% faster.

1 files changed, 47 insertions, 0 deletions

diff --git a/src/blitter/32bpp_anim_sse4.hpp b/src/blitter/32bpp_anim_sse4.hpp
new file mode 100644
index 000000000..90aec22d8
--- /dev/null
+++ b/src/blitter/32bpp_anim_sse4.hpp
@@ -0,0 +1,47 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file 32bpp_sse4_anim.hpp A SSE4 32 bpp blitter with animation support. */
+
+#ifndef BLITTER_32BPP_SSE4_ANIM_HPP
+#define BLITTER_32BPP_SSE4_ANIM_HPP
+
+#ifdef WITH_SSE
+
+#include "32bpp_anim.hpp"
+#include "32bpp_sse4.hpp"
+
+#undef MARGIN_THRESHOLD
+#define MARGIN_THRESHOLD 4
+
+/** The SSE4 32 bpp blitter with palette animation. */
+class Blitter_32bppSSE4_Anim FINAL : public Blitter_32bppAnim, public Blitter_32bppSSE_Base {
+private:
+
+public:
+	template <BlitterMode mode, Blitter_32bppSSE_Base::ReadMode read_mode, Blitter_32bppSSE_Base::BlockType bt_last>
+	/* virtual */ void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom);
+	/* virtual */ void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom);
+	/* virtual */ Colour AdjustBrightness(Colour colour, uint8 brightness);
+	/* virtual */ Sprite *Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator) {
+		return Blitter_32bppSSE_Base::Encode(sprite, allocator);
+	}
+
+	/* virtual */ const char *GetName() { return "32bpp-sse4-anim"; }
+};
+
+/** Factory for the SSE4 32 bpp blitter (with palette animation). */
+class FBlitter_32bppSSE4_Anim: public BlitterFactory {
+public:
+	FBlitter_32bppSSE4_Anim() : BlitterFactory("32bpp-sse4-anim", "SSE4 Blitter (palette animation)", HasCPUIDFlag(1, 2, 19)) {}
+	/* virtual */ Blitter *CreateInstance() { return new Blitter_32bppSSE4_Anim(); }
+};
+
+#endif /* WITH_SSE */
+#endif /* BLITTER_32BPP_SSE4_ANIM_HPP */