mirror of https://github.com/OpenTTD/OpenTTD.git
107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
/*
|
|
* 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_sse2.hpp SSE2 32 bpp blitter. */
|
|
|
|
#ifndef BLITTER_32BPP_SSE2_HPP
|
|
#define BLITTER_32BPP_SSE2_HPP
|
|
|
|
#ifdef WITH_SSE
|
|
|
|
#ifndef SSE_VERSION
|
|
#define SSE_VERSION 2
|
|
#endif
|
|
|
|
#ifndef SSE_TARGET
|
|
#define SSE_TARGET "sse2"
|
|
#endif
|
|
|
|
#ifndef FULL_ANIMATION
|
|
#define FULL_ANIMATION 0
|
|
#endif
|
|
|
|
#include "32bpp_sse_type.h"
|
|
|
|
/** Base methods for 32bpp SSE blitters. */
|
|
class Blitter_32bppSSE_Base {
|
|
public:
|
|
virtual ~Blitter_32bppSSE_Base() = default;
|
|
|
|
struct MapValue {
|
|
uint8_t m;
|
|
uint8_t v;
|
|
};
|
|
static_assert(sizeof(MapValue) == 2);
|
|
|
|
/** Helper for creating specialised functions for specific optimisations. */
|
|
enum ReadMode {
|
|
RM_WITH_SKIP, ///< Use normal code for skipping empty pixels.
|
|
RM_WITH_MARGIN, ///< Use cached number of empty pixels at begin and end of line to reduce work.
|
|
RM_NONE, ///< No specialisation.
|
|
};
|
|
|
|
/** Helper for creating specialised functions for the case where the sprite width is odd or even. */
|
|
enum BlockType {
|
|
BT_EVEN, ///< An even number of pixels in the width; no need for a special case for the last pixel.
|
|
BT_ODD, ///< An odd number of pixels in the width; special case for the last pixel.
|
|
BT_NONE, ///< No specialisation for either case.
|
|
};
|
|
|
|
/** Helper for using specialised functions designed to prevent whenever it's possible things like:
|
|
* - IO (reading video buffer),
|
|
* - calculations (alpha blending),
|
|
* - heavy branching (remap lookups and animation buffer handling).
|
|
*/
|
|
enum SpriteFlags {
|
|
SF_NONE = 0,
|
|
SF_TRANSLUCENT = 1 << 1, ///< The sprite has at least 1 translucent pixel.
|
|
SF_NO_REMAP = 1 << 2, ///< The sprite has no remappable colour pixel.
|
|
SF_NO_ANIM = 1 << 3, ///< The sprite has no palette animated pixel.
|
|
};
|
|
|
|
/** Data stored about a (single) sprite. */
|
|
struct SpriteInfo {
|
|
uint32_t sprite_offset; ///< The offset to the sprite data.
|
|
uint32_t mv_offset; ///< The offset to the map value data.
|
|
uint16_t sprite_line_size; ///< The size of a single line (pitch).
|
|
uint16_t sprite_width; ///< The width of the sprite.
|
|
};
|
|
struct SpriteData {
|
|
SpriteFlags flags;
|
|
SpriteInfo infos[ZOOM_LVL_END];
|
|
uint8_t data[]; ///< Data, all zoomlevels.
|
|
};
|
|
|
|
Sprite *Encode(const SpriteLoader::SpriteCollection &sprite, AllocatorProc *allocator);
|
|
};
|
|
|
|
DECLARE_ENUM_AS_BIT_SET(Blitter_32bppSSE_Base::SpriteFlags);
|
|
|
|
/** The SSE2 32 bpp blitter (without palette animation). */
|
|
class Blitter_32bppSSE2 : public Blitter_32bppSimple, public Blitter_32bppSSE_Base {
|
|
public:
|
|
void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override;
|
|
template <BlitterMode mode, Blitter_32bppSSE_Base::ReadMode read_mode, Blitter_32bppSSE_Base::BlockType bt_last, bool translucent>
|
|
void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom);
|
|
|
|
Sprite *Encode(const SpriteLoader::SpriteCollection &sprite, AllocatorProc *allocator) override {
|
|
return Blitter_32bppSSE_Base::Encode(sprite, allocator);
|
|
}
|
|
|
|
const char *GetName() override { return "32bpp-sse2"; }
|
|
};
|
|
|
|
/** Factory for the SSE2 32 bpp blitter (without palette animation). */
|
|
class FBlitter_32bppSSE2 : public BlitterFactory {
|
|
public:
|
|
FBlitter_32bppSSE2() : BlitterFactory("32bpp-sse2", "32bpp SSE2 Blitter (no palette animation)", HasCPUIDFlag(1, 3, 26)) {}
|
|
Blitter *CreateInstance() override { return new Blitter_32bppSSE2(); }
|
|
};
|
|
|
|
#endif /* WITH_SSE */
|
|
#endif /* BLITTER_32BPP_SSE2_HPP */
|