mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-12-11 13:01:19 +00:00
322 lines
12 KiB
C++
322 lines
12 KiB
C++
/*
|
|
** DrawColumn code generation
|
|
** Copyright (c) 2016 Magnus Norddahl
|
|
**
|
|
** This software is provided 'as-is', without any express or implied
|
|
** warranty. In no event will the authors be held liable for any damages
|
|
** arising from the use of this software.
|
|
**
|
|
** Permission is granted to anyone to use this software for any purpose,
|
|
** including commercial applications, and to alter it and redistribute it
|
|
** freely, subject to the following restrictions:
|
|
**
|
|
** 1. The origin of this software must not be misrepresented; you must not
|
|
** claim that you wrote the original software. If you use this software
|
|
** in a product, an acknowledgment in the product documentation would be
|
|
** appreciated but is not required.
|
|
** 2. Altered source versions must be plainly marked as such, and must not be
|
|
** misrepresented as being the original software.
|
|
** 3. This notice may not be removed or altered from any source distribution.
|
|
**
|
|
*/
|
|
|
|
#include "precomp.h"
|
|
#include "timestamp.h"
|
|
#include "fixedfunction/drawcolumncodegen.h"
|
|
#include "ssa/ssa_function.h"
|
|
#include "ssa/ssa_scope.h"
|
|
#include "ssa/ssa_for_block.h"
|
|
#include "ssa/ssa_if_block.h"
|
|
#include "ssa/ssa_stack.h"
|
|
#include "ssa/ssa_function.h"
|
|
#include "ssa/ssa_struct_type.h"
|
|
#include "ssa/ssa_value.h"
|
|
|
|
void DrawColumnCodegen::Generate(DrawColumnVariant variant, SSAValue args, SSAValue thread_data)
|
|
{
|
|
dest = args[0][0].load(true);
|
|
source = args[0][1].load(true);
|
|
source2 = args[0][2].load(true);
|
|
colormap = args[0][3].load(true);
|
|
translation = args[0][4].load(true);
|
|
basecolors = args[0][5].load(true);
|
|
pitch = args[0][6].load(true);
|
|
count = args[0][7].load(true);
|
|
dest_y = args[0][8].load(true);
|
|
iscale = args[0][9].load(true);
|
|
texturefracx = args[0][10].load(true);
|
|
textureheight = args[0][11].load(true);
|
|
texturefrac = args[0][12].load(true);
|
|
light = args[0][13].load(true);
|
|
color = SSAVec4i::unpack(args[0][14].load(true));
|
|
srccolor = SSAVec4i::unpack(args[0][15].load(true));
|
|
srcalpha = args[0][16].load(true);
|
|
destalpha = args[0][17].load(true);
|
|
SSAShort light_alpha = args[0][18].load(true);
|
|
SSAShort light_red = args[0][19].load(true);
|
|
SSAShort light_green = args[0][20].load(true);
|
|
SSAShort light_blue = args[0][21].load(true);
|
|
SSAShort fade_alpha = args[0][22].load(true);
|
|
SSAShort fade_red = args[0][23].load(true);
|
|
SSAShort fade_green = args[0][24].load(true);
|
|
SSAShort fade_blue = args[0][25].load(true);
|
|
SSAShort desaturate = args[0][26].load(true);
|
|
SSAInt flags = args[0][27].load(true);
|
|
shade_constants.light = SSAVec4i(light_blue.zext_int(), light_green.zext_int(), light_red.zext_int(), light_alpha.zext_int());
|
|
shade_constants.fade = SSAVec4i(fade_blue.zext_int(), fade_green.zext_int(), fade_red.zext_int(), fade_alpha.zext_int());
|
|
shade_constants.desaturate = desaturate.zext_int();
|
|
|
|
thread.core = thread_data[0][0].load(true);
|
|
thread.num_cores = thread_data[0][1].load(true);
|
|
thread.pass_start_y = thread_data[0][2].load(true);
|
|
thread.pass_end_y = thread_data[0][3].load(true);
|
|
thread.temp = thread_data[0][4].load(true);
|
|
|
|
is_simple_shade = (flags & DrawColumnArgs::simple_shade) == SSAInt(DrawColumnArgs::simple_shade);
|
|
is_nearest_filter = (flags & DrawColumnArgs::nearest_filter) == SSAInt(DrawColumnArgs::nearest_filter);
|
|
|
|
count = count_for_thread(dest_y, count, thread);
|
|
dest = dest_for_thread(dest_y, pitch, dest, thread);
|
|
pitch = pitch * thread.num_cores;
|
|
|
|
stack_frac.store(texturefrac + iscale * skipped_by_thread(dest_y, thread));
|
|
iscale = iscale * thread.num_cores;
|
|
|
|
SSAIfBlock branch;
|
|
branch.if_block(is_simple_shade);
|
|
LoopShade(variant, true);
|
|
branch.else_block();
|
|
LoopShade(variant, false);
|
|
branch.end_block();
|
|
}
|
|
|
|
void DrawColumnCodegen::LoopShade(DrawColumnVariant variant, bool isSimpleShade)
|
|
{
|
|
SSAIfBlock branch;
|
|
branch.if_block(is_nearest_filter);
|
|
Loop(variant, isSimpleShade, true);
|
|
branch.else_block();
|
|
one = (1 << 30) / textureheight;
|
|
stack_frac.store(stack_frac.load() - (one >> 1));
|
|
Loop(variant, isSimpleShade, false);
|
|
branch.end_block();
|
|
}
|
|
|
|
void DrawColumnCodegen::Loop(DrawColumnVariant variant, bool isSimpleShade, bool isNearestFilter)
|
|
{
|
|
stack_index.store(SSAInt(0));
|
|
{
|
|
SSAForBlock loop;
|
|
SSAInt index = stack_index.load();
|
|
loop.loop_block(index < count);
|
|
|
|
SSAInt sample_index, frac;
|
|
frac = stack_frac.load();
|
|
if (IsPaletteInput(variant))
|
|
sample_index = frac >> FRACBITS;
|
|
else
|
|
sample_index = frac;
|
|
|
|
SSAInt offset = index * pitch * 4;
|
|
SSAVec4i bgcolor = dest[offset].load_vec4ub(false);
|
|
|
|
SSAVec4i outcolor = ProcessPixel(sample_index, bgcolor, variant, isSimpleShade, isNearestFilter);
|
|
|
|
dest[offset].store_vec4ub(outcolor);
|
|
|
|
stack_index.store(index.add(SSAInt(1), true, true));
|
|
stack_frac.store(frac + iscale);
|
|
loop.end_block();
|
|
}
|
|
}
|
|
|
|
bool DrawColumnCodegen::IsPaletteInput(DrawColumnVariant variant)
|
|
{
|
|
switch (variant)
|
|
{
|
|
default:
|
|
case DrawColumnVariant::DrawCopy:
|
|
case DrawColumnVariant::Draw:
|
|
case DrawColumnVariant::DrawAdd:
|
|
case DrawColumnVariant::DrawAddClamp:
|
|
case DrawColumnVariant::DrawSubClamp:
|
|
case DrawColumnVariant::DrawRevSubClamp:
|
|
case DrawColumnVariant::Fill:
|
|
case DrawColumnVariant::FillAdd:
|
|
case DrawColumnVariant::FillAddClamp:
|
|
case DrawColumnVariant::FillSubClamp:
|
|
case DrawColumnVariant::FillRevSubClamp:
|
|
return false;
|
|
case DrawColumnVariant::DrawShaded:
|
|
case DrawColumnVariant::DrawTranslated:
|
|
case DrawColumnVariant::DrawTlatedAdd:
|
|
case DrawColumnVariant::DrawAddClampTranslated:
|
|
case DrawColumnVariant::DrawSubClampTranslated:
|
|
case DrawColumnVariant::DrawRevSubClampTranslated:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
SSAVec4i DrawColumnCodegen::ProcessPixel(SSAInt sample_index, SSAVec4i bgcolor, DrawColumnVariant variant, bool isSimpleShade, bool isNearestFilter)
|
|
{
|
|
SSAInt alpha, inv_alpha;
|
|
SSAVec4i fg;
|
|
switch (variant)
|
|
{
|
|
default:
|
|
case DrawColumnVariant::DrawCopy:
|
|
return blend_copy(Sample(sample_index, isNearestFilter));
|
|
case DrawColumnVariant::Draw:
|
|
return blend_copy(Shade(Sample(sample_index, isNearestFilter), isSimpleShade));
|
|
case DrawColumnVariant::DrawAdd:
|
|
case DrawColumnVariant::DrawAddClamp:
|
|
fg = Shade(Sample(sample_index, isNearestFilter), isSimpleShade);
|
|
return blend_add(fg, bgcolor, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
case DrawColumnVariant::DrawShaded:
|
|
alpha = SSAInt::MAX(SSAInt::MIN(ColormapSample(sample_index), SSAInt(64)), SSAInt(0)) * 4;
|
|
inv_alpha = 256 - alpha;
|
|
return blend_add(color, bgcolor, alpha, inv_alpha);
|
|
case DrawColumnVariant::DrawSubClamp:
|
|
fg = Shade(Sample(sample_index, isNearestFilter), isSimpleShade);
|
|
return blend_sub(fg, bgcolor, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
case DrawColumnVariant::DrawRevSubClamp:
|
|
fg = Shade(Sample(sample_index, isNearestFilter), isSimpleShade);
|
|
return blend_revsub(fg, bgcolor, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
case DrawColumnVariant::DrawTranslated:
|
|
return blend_copy(Shade(TranslateSample(sample_index), isSimpleShade));
|
|
case DrawColumnVariant::DrawTlatedAdd:
|
|
case DrawColumnVariant::DrawAddClampTranslated:
|
|
fg = Shade(TranslateSample(sample_index), isSimpleShade);
|
|
return blend_add(fg, bgcolor, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
case DrawColumnVariant::DrawSubClampTranslated:
|
|
fg = Shade(TranslateSample(sample_index), isSimpleShade);
|
|
return blend_sub(fg, bgcolor, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
case DrawColumnVariant::DrawRevSubClampTranslated:
|
|
fg = Shade(TranslateSample(sample_index), isSimpleShade);
|
|
return blend_revsub(fg, bgcolor, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
case DrawColumnVariant::Fill:
|
|
return blend_copy(color);
|
|
case DrawColumnVariant::FillAdd:
|
|
alpha = srccolor[3];
|
|
alpha = alpha + (alpha >> 7);
|
|
inv_alpha = 256 - alpha;
|
|
return blend_add(srccolor, bgcolor, alpha, inv_alpha);
|
|
case DrawColumnVariant::FillAddClamp:
|
|
return blend_add(srccolor, bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::FillSubClamp:
|
|
return blend_sub(srccolor, bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::FillRevSubClamp:
|
|
return blend_revsub(srccolor, bgcolor, srcalpha, destalpha);
|
|
}
|
|
}
|
|
|
|
SSAVec4i DrawColumnCodegen::ProcessPixelPal(SSAInt sample_index, SSAVec4i bgcolor, DrawColumnVariant variant, bool isSimpleShade)
|
|
{
|
|
SSAInt alpha, inv_alpha;
|
|
switch (variant)
|
|
{
|
|
default:
|
|
case DrawColumnVariant::DrawCopy:
|
|
return blend_copy(basecolors[ColormapSample(sample_index) * 4].load_vec4ub(true));
|
|
case DrawColumnVariant::Draw:
|
|
return blend_copy(ShadePal(ColormapSample(sample_index), isSimpleShade));
|
|
case DrawColumnVariant::DrawAdd:
|
|
case DrawColumnVariant::DrawAddClamp:
|
|
return blend_add(ShadePal(ColormapSample(sample_index), isSimpleShade), bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::DrawShaded:
|
|
alpha = SSAInt::MAX(SSAInt::MIN(ColormapSample(sample_index), SSAInt(64)), SSAInt(0)) * 4;
|
|
inv_alpha = 256 - alpha;
|
|
return blend_add(color, bgcolor, alpha, inv_alpha);
|
|
case DrawColumnVariant::DrawSubClamp:
|
|
return blend_sub(ShadePal(ColormapSample(sample_index), isSimpleShade), bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::DrawRevSubClamp:
|
|
return blend_revsub(ShadePal(ColormapSample(sample_index), isSimpleShade), bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::DrawTranslated:
|
|
return blend_copy(ShadePal(TranslateSamplePal(sample_index), isSimpleShade));
|
|
case DrawColumnVariant::DrawTlatedAdd:
|
|
case DrawColumnVariant::DrawAddClampTranslated:
|
|
return blend_add(ShadePal(TranslateSamplePal(sample_index), isSimpleShade), bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::DrawSubClampTranslated:
|
|
return blend_sub(ShadePal(TranslateSamplePal(sample_index), isSimpleShade), bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::DrawRevSubClampTranslated:
|
|
return blend_revsub(ShadePal(TranslateSamplePal(sample_index), isSimpleShade), bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::Fill:
|
|
return blend_copy(color);
|
|
case DrawColumnVariant::FillAdd:
|
|
alpha = srccolor[3];
|
|
alpha = alpha + (alpha >> 7);
|
|
inv_alpha = 256 - alpha;
|
|
return blend_add(srccolor, bgcolor, alpha, inv_alpha);
|
|
case DrawColumnVariant::FillAddClamp:
|
|
return blend_add(srccolor, bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::FillSubClamp:
|
|
return blend_sub(srccolor, bgcolor, srcalpha, destalpha);
|
|
case DrawColumnVariant::FillRevSubClamp:
|
|
return blend_revsub(srccolor, bgcolor, srcalpha, destalpha);
|
|
}
|
|
}
|
|
|
|
SSAVec4i DrawColumnCodegen::Sample(SSAInt frac, bool isNearestFilter)
|
|
{
|
|
if (isNearestFilter)
|
|
{
|
|
SSAInt sample_index = (((frac << 2) >> FRACBITS) * textureheight) >> FRACBITS;
|
|
return source[sample_index * 4].load_vec4ub(false);
|
|
}
|
|
else
|
|
{
|
|
return SampleLinear(source, source2, texturefracx, frac, one, textureheight);
|
|
}
|
|
}
|
|
|
|
SSAVec4i DrawColumnCodegen::SampleLinear(SSAUBytePtr col0, SSAUBytePtr col1, SSAInt texturefracx, SSAInt texturefracy, SSAInt one, SSAInt height)
|
|
{
|
|
// Clamp to edge
|
|
SSAInt frac_y0 = (SSAInt::MAX(SSAInt::MIN(texturefracy, SSAInt((1 << 30) - 1)), SSAInt(0)) >> (FRACBITS - 2)) * height;
|
|
SSAInt frac_y1 = (SSAInt::MAX(SSAInt::MIN(texturefracy + one, SSAInt((1 << 30) - 1)), SSAInt(0)) >> (FRACBITS - 2)) * height;
|
|
SSAInt y0 = frac_y0 >> FRACBITS;
|
|
SSAInt y1 = frac_y1 >> FRACBITS;
|
|
|
|
SSAVec4i p00 = col0[y0 * 4].load_vec4ub(true);
|
|
SSAVec4i p01 = col0[y1 * 4].load_vec4ub(true);
|
|
SSAVec4i p10 = col1[y0 * 4].load_vec4ub(true);
|
|
SSAVec4i p11 = col1[y1 * 4].load_vec4ub(true);
|
|
|
|
SSAInt inv_b = texturefracx;
|
|
SSAInt inv_a = (frac_y1 >> (FRACBITS - 4)) & 15;
|
|
SSAInt a = 16 - inv_a;
|
|
SSAInt b = 16 - inv_b;
|
|
|
|
return (p00 * (a * b) + p01 * (inv_a * b) + p10 * (a * inv_b) + p11 * (inv_a * inv_b) + 127) >> 8;
|
|
}
|
|
|
|
SSAInt DrawColumnCodegen::ColormapSample(SSAInt sample_index)
|
|
{
|
|
return colormap[source[sample_index].load(true).zext_int()].load(true).zext_int();
|
|
}
|
|
|
|
SSAVec4i DrawColumnCodegen::TranslateSample(SSAInt sample_index)
|
|
{
|
|
return translation[source[sample_index].load(true).zext_int() * 4].load_vec4ub(true);
|
|
}
|
|
|
|
SSAInt DrawColumnCodegen::TranslateSamplePal(SSAInt sample_index)
|
|
{
|
|
return translation[source[sample_index].load(true).zext_int()].load(true).zext_int();
|
|
}
|
|
|
|
SSAVec4i DrawColumnCodegen::Shade(SSAVec4i fg, bool isSimpleShade)
|
|
{
|
|
if (isSimpleShade)
|
|
return shade_bgra_simple(fg, light);
|
|
else
|
|
return shade_bgra_advanced(fg, light, shade_constants);
|
|
}
|
|
|
|
SSAVec4i DrawColumnCodegen::ShadePal(SSAInt palIndex, bool isSimpleShade)
|
|
{
|
|
if (isSimpleShade)
|
|
return shade_pal_index_simple(palIndex, light, basecolors);
|
|
else
|
|
return shade_pal_index_advanced(palIndex, light, shade_constants, basecolors);
|
|
}
|