OrdinaryMagician/vkdoom_m
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Add support for repeating skies in the TC sky drawer

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This commit is contained in:
Magnus Norddahl 2017-01-19 00:12:54 +01:00
commit 111b5c5469
5 changed files with 29 additions and 6 deletions
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23
tools/drawergen/fixedfunction/drawskycodegen.cpp
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@ -47,12 +47,15 @@ void DrawSkyCodegen::Generate(DrawSkyVariant variant, SSAValue args, SSAValue th
maxtextureheight1 = textureheight1 - 1;
top_color = SSAVec4i::unpack(args[0][22].load(true));
bottom_color = SSAVec4i::unpack(args[0][23].load(true));
SSAInt flags = args[0][24].load(true);
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);
is_fade_sky = (flags & DrawSkyArgs::fade_sky) == SSAInt(DrawSkyArgs::fade_sky);
count = count_for_thread(dest_y, count, thread);
dest = dest_for_thread(dest_y, pitch, dest, thread);
@ -61,10 +64,15 @@ void DrawSkyCodegen::Generate(DrawSkyVariant variant, SSAValue args, SSAValue th
stack_frac.store(texturefrac + iscale * skipped_by_thread(dest_y, thread));
fracstep = iscale * thread.num_cores;
Loop(variant);
SSAIfBlock branch;
branch.if_block(is_fade_sky);
Loop(variant, true);
branch.else_block();
Loop(variant, false);
branch.end_block();
}
void DrawSkyCodegen::Loop(DrawSkyVariant variant)
void DrawSkyCodegen::Loop(DrawSkyVariant variant, bool fade_sky)
{
stack_index.store(SSAInt(0));
{
@ -76,8 +84,15 @@ void DrawSkyCodegen::Loop(DrawSkyVariant variant)
SSAInt offset = index * pitch * 4;
SSAVec4i color = FadeOut(frac, Sample(frac, variant));
dest[offset].store_vec4ub(color);
if (fade_sky)
{
SSAVec4i color = FadeOut(frac, Sample(frac, variant));
dest[offset].store_vec4ub(color);
}
else
{
dest[offset].store_vec4ub(Sample(frac, variant));
}
stack_index.store(index.add(SSAInt(1), true, true));
stack_frac.store(frac + fracstep);