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Use LLVM to JIT the code for one of the drawer functions

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This commit is contained in:
Magnus Norddahl 2016-09-26 09:00:19 +02:00
commit 3dd8b593b6
52 changed files with 4705 additions and 0 deletions
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66
src/r_draw_rgba.cpp
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@ -38,6 +38,7 @@
#include "r_data/colormaps.h"
#include "r_plane.h"
#include "r_draw_rgba.h"
#include "r_compiler/fixedfunction/fixedfunction.h"
#include "gi.h"
#include "stats.h"
@ -299,6 +300,68 @@ void DrawerCommandQueue::StopThreads()
/////////////////////////////////////////////////////////////////////////////
class DrawSpanFFCommand : public DrawerCommand
{
fixed_t _xfrac;
fixed_t _yfrac;
fixed_t _xstep;
fixed_t _ystep;
int _x1;
int _x2;
int _y;
int _xbits;
int _ybits;
BYTE * RESTRICT _destorg;
const uint32_t * RESTRICT _source;
uint32_t _light;
ShadeConstants _shade_constants;
bool _nearest_filter;
uint32_t _srcalpha;
uint32_t _destalpha;
FixedFunction *_ff;
public:
DrawSpanFFCommand()
{
_xfrac = ds_xfrac;
_yfrac = ds_yfrac;
_xstep = ds_xstep;
_ystep = ds_ystep;
_x1 = ds_x1;
_x2 = ds_x2;
_y = ds_y;
_xbits = ds_xbits;
_ybits = ds_ybits;
_destorg = dc_destorg;
_source = (const uint32_t*)ds_source;
_light = LightBgra::calc_light_multiplier(ds_light);
_shade_constants = ds_shade_constants;
_nearest_filter = !SampleBgra::span_sampler_setup(_source, _xbits, _ybits, _xstep, _ystep, ds_source_mipmapped);
_srcalpha = dc_srcalpha >> (FRACBITS - 8);
_destalpha = dc_destalpha >> (FRACBITS - 8);
static FixedFunction ff;
_ff = &ff;
}
void Execute(DrawerThread *thread) override
{
if (thread->skipped_by_thread(_y))
return;
uint32_t *dest = ylookup[_y] + _x1 + (uint32_t*)_destorg;
int count = _x2 - _x1 + 1;
_ff->DrawSpan(count, dest);
}
};
/////////////////////////////////////////////////////////////////////////////
class DrawerColumnCommand : public DrawerCommand
{
public:
@ -2700,11 +2763,14 @@ void R_DrawRevSubClampTranslatedColumn_rgba()
void R_DrawSpan_rgba()
{
DrawerCommandQueue::QueueCommand<DrawSpanFFCommand>();
/*
#ifdef NO_SSE
DrawerCommandQueue::QueueCommand<DrawSpanRGBACommand>();
#else
DrawerCommandQueue::QueueCommand<DrawSpanRGBA_SSE_Command>();
#endif
*/
}
void R_DrawSpanMasked_rgba()