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shader constant tweak vars

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This commit is contained in:
jacob 2026-01-02 01:23:32 -06:00
parent 003a77d410
commit 8aa44b5deb
6 changed files with 42 additions and 42 deletions
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2
src/base/base_shader.gh
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@ -79,7 +79,7 @@ u32 countof(T arr[N])
////////////////////////////////////////////////////////////
//~ Derivative helpers
#define fwidth_fine(v) (abs(ddx_fine((v))) + abs(ddx_fine((v))))
#define fwidth_fine(v) (abs(ddx_fine((v))) + abs(ddy_fine((v))))
////////////////////////////////////////////////////////////
//~ Color helpers

15
src/glyph_cache/glyph_cache.c
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@ -171,20 +171,7 @@ GC_Run GC_RunFromString32(Arena *arena, String32 str32, GC_FontKey font, f32 fon
GC_Glyph *glyph = ready_glyphs[glyph_idx];
GC_RunRect *rect = &result.rects[glyph_idx];
f32 advance = glyph->advance;
if (TweakBool("Ceil glyph advances", 0))
{
advance = CeilF32(advance);
}
if (TweakBool("Floor glyph advances", 0))
{
advance = FloorF32(advance);
}
if (TweakBool("Round glyph advances", 1))
{
advance = RoundF32(advance);
}
f32 advance = RoundF32(glyph->advance);
Rng2 bounds = glyph->bounds;
rect->tex = glyph->atlas->tex_ref;

7
src/gpu/gpu_dx12/gpu_dx12_core.c
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@ -1720,10 +1720,17 @@ i64 G_CommitCommandList(G_CommandListHandle cl_handle)
for (i32 i = 0; i < countof(bound_compute_constants); ++i) { bound_compute_constants[i] = U64Max; }
for (i32 i = 0; i < countof(bound_graphics_constants); ++i) { bound_graphics_constants[i] = U64Max; }
// Fill built-in constants
if (!G_IsRefNil(queue->print_buffer_ref))
{
slotted_constants[G_ShaderConst_PrintBufferRef] = queue->print_buffer_ref.v;
}
{
b32 tweak_b32 = TweakBool("GPU tweak-bool", 1);
f32 tweak_f32 = TweakFloat("GPU tweak-float", 1, 0, 1, .precision = 3);
slotted_constants[G_ShaderConst_TweakB32] = tweak_b32;
slotted_constants[G_ShaderConst_TweakF32] = *(u32 *)&tweak_f32;
}
// Rasterizer state
D3D12_VIEWPORT bound_viewport = Zi;

51
src/gpu/gpu_shader_core.cgh
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@ -35,11 +35,11 @@ Struct(G_SamplerStateRef) { u32 v; };
//
// D3D12 exposes 64 root constants and Vulkan exposes 32 push constants.
// Supposedly amd hardware will spill constants to scratch memory once there
// are more than 13: https://gpuopen.com/learn/rdna-performance-guide/
// Supposedly amd hardware will start spilling constants once there
// are more than 12: https://gpuopen.com/learn/rdna-performance-guide/
//
#define G_NumGeneralPurposeConstants (8) // Constants available for any usage
#define G_NumReservedConstants (1) // Constants reserved for usage by the GPU layer
#define G_NumReservedConstants (4) // Constants reserved for internal usage by the GPU layer
#define G_NumConstants (G_NumGeneralPurposeConstants + G_NumReservedConstants)
#if IsLanguageC
@ -55,6 +55,22 @@ Struct(G_SamplerStateRef) { u32 v; };
#define G_DeclConstant(type, name, slot) G_ForceDeclConstant(type, name, slot)
#endif
////////////////////////////////////////////////////////////
//~ Reserved constants
// The constants declared below assume this configuration is accurate for slot usage
StaticAssert(G_NumGeneralPurposeConstants == 8);
StaticAssert(G_NumReservedConstants >= 3);
G_ForceDeclConstant(G_RWByteAddressBufferRef, G_ShaderConst_PrintBufferRef, 8);
G_ForceDeclConstant(b32, G_ShaderConst_TweakB32, 9);
G_ForceDeclConstant(f32, G_ShaderConst_TweakF32, 10);
#if IsLanguageG
#define G_TweakBool G_ShaderConst_TweakB32
#define G_TweakFloat G_ShaderConst_TweakF32
#endif
////////////////////////////////////////////////////////////
//~ Resource dereference
@ -83,27 +99,18 @@ Struct(G_SamplerStateRef) { u32 v; };
//~ Size helpers
#if IsLanguageG
template<typename T> u32 countof(StructuredBuffer<T> buff) { u32 result; buff.GetDimensions(result); return result; }
template<typename T> u32 countof(RWStructuredBuffer<T> buff) { u32 result; buff.GetDimensions(result); return result; }
u32 countof(ByteAddressBuffer buff) { u32 result; buff.GetDimensions(result); return result; }
u32 countof(RWByteAddressBuffer buff) { u32 result; buff.GetDimensions(result); return result; }
u32 countof(Texture1D tex) { u32 result; tex.GetDimensions(result); return result; }
template<typename T> u32 countof(RWTexture1D<T> tex) { u32 result; tex.GetDimensions(result); return result; }
Vec2U32 countof(Texture2D tex) { Vec2U32 result; tex.GetDimensions(result.x, result.y); return result; }
template<typename T> Vec2U32 countof(RWTexture2D<T> tex) { Vec2U32 result; tex.GetDimensions(result.x, result.y); return result; }
Vec3U32 countof(Texture3D tex) { Vec3U32 result; tex.GetDimensions(result.x, result.y, result.z); return result; }
template<typename T> Vec3U32 countof(RWTexture3D<T> tex) { Vec3U32 result; tex.GetDimensions(result.x, result.y, result.z); return result; }
template<typename T> u32 countof(StructuredBuffer<T> buff) { u32 result; buff.GetDimensions(result); return result; }
template<typename T> u32 countof(RWStructuredBuffer<T> buff) { u32 result; buff.GetDimensions(result); return result; }
u32 countof(ByteAddressBuffer buff) { u32 result; buff.GetDimensions(result); return result; }
u32 countof(RWByteAddressBuffer buff) { u32 result; buff.GetDimensions(result); return result; }
u32 countof(Texture1D tex) { u32 result; tex.GetDimensions(result); return result; }
template<typename T> u32 countof(RWTexture1D<T> tex) { u32 result; tex.GetDimensions(result); return result; }
Vec2U32 countof(Texture2D tex) { Vec2U32 result; tex.GetDimensions(result.x, result.y); return result; }
template<typename T> Vec2U32 countof(RWTexture2D<T> tex) { Vec2U32 result; tex.GetDimensions(result.x, result.y); return result; }
Vec3U32 countof(Texture3D tex) { Vec3U32 result; tex.GetDimensions(result.x, result.y, result.z); return result; }
template<typename T> Vec3U32 countof(RWTexture3D<T> tex) { Vec3U32 result; tex.GetDimensions(result.x, result.y, result.z); return result; }
#endif
////////////////////////////////////////////////////////////
//~ Reserved constants
// The constants declared below assume this configuration is accurate for slot usage
StaticAssert(G_NumGeneralPurposeConstants == 8);
StaticAssert(G_NumReservedConstants == 1);
G_ForceDeclConstant(G_RWByteAddressBufferRef, G_ShaderConst_PrintBufferRef, 8);
////////////////////////////////////////////////////////////
//~ Debug printf

7
src/pp/pp_vis/pp_vis_core.c
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@ -1298,7 +1298,7 @@ void V_TickForever(WaveLaneCtx *lane)
V_Palette *palette = &frame->palette;
{
f32 palette_ease = TweakFloat("Command palette ease", 30, 1, 100) * frame->dt;
f32 palette_ease = TweakFloat("Debug palette ease", 30, 1, 100) * frame->dt;
palette->show = LerpF32(palette->show, palette->pref_show, palette_ease);
}
if (palette->show > 0.001)
@ -1330,8 +1330,7 @@ void V_TickForever(WaveLaneCtx *lane)
UI_Push(BackgroundColor, window_background_color);
UI_Push(BorderColor, window_border_color);
UI_Push(BorderSize, theme.window_bd_sz);
// UI_Push(Rounding, UI_RPIX(15 * theme.rounding));
UI_Push(Rounding, UI_RGROW(0.075 * theme.rounding));
UI_Push(Rounding, UI_RGROW(0.095 * theme.rounding));
UI_Push(Width, UI_FNT(40, 0));
UI_Push(Height, UI_SHRINK(0, 0));
UI_Push(ChildLayoutAxis, Axis_Y);
@ -1362,7 +1361,7 @@ void V_TickForever(WaveLaneCtx *lane)
UI_SetNext(FontSize, UI_Top(FontSize) * theme.h2);
UI_SetNext(ChildAlignment, UI_Region_Center);
UI_SetNext(Width, UI_SHRINK(0, 1));
UI_SetNext(Text, Lit("Command Palette"));
UI_SetNext(Text, Lit("Debug Palette"));
UI_SetNext(Flags, UI_BoxFlag_DrawText);
UI_BuildBox();

2
src/ui/ui_shaders.g
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@ -98,7 +98,7 @@ PixelShader(UI_DRectPS, UI_DRectPSOutput, UI_DRectPSInput input)
// Border color
{
f32 half_border_dist_fwidth = fwidth_fine(border_dist) * 0.5;
f32 half_border_dist_fwidth = fwidth(border_dist) * 0.5;
f32 border_alpha = smoothstep(half_border_dist_fwidth, -half_border_dist_fwidth, border_dist);
final_color = lerp(final_color, border_color, border_alpha);
}