geometer/geometer.h at master · azmr/geometer

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#ifndef GEOMETER_H

#define BASIS_DEFAULT_ZOOM 0.1f

#define BASIS State->Basis

#define pBASIS State->pBasis

#define POINTS(i) Pull(State->maPoints, i)

#define POINTSTATUS(i) Pull(State->maPointStatus, i)

#define POINTS_OS(i) Pull(State->maPointsOnScreen, i)

#define POINTLAYER(i) Pull(State->maPointLayer, i)

#define SHAPES(i) Pull(State->maShapes, i)

#define ACTIONS(i) Pull(State->maActions, i)

#define DEBUG_LOG_ACTIONS 0

#def 8000 ine DEFAULT_LENGTH 20.f

#define cSTART_POINTS 32

#define BASIS_ANIMATION_SPEED 8.f

#define MOUSE_ANIMATION_SPEED 30.f

#define DRAWER_ANIMATION_SPEED 10.f

#define MAX_LAYERS 5

#define POINT_RADIUS 4.f

#define ACTIVE_POINT_RADIUS 6.f

#include <types.h>

/* #include "geometer_config.h" */

// TODO: DEBUG_TYPE_MEMBERS

#define DEBUG_TYPES \

DEBUG_TYPE(b32, "%d") \

DEBUG_TYPE(int, "%d") \

DEBUG_TYPE(char, "%c") \

DEBUG_TYPE(uint, "%u") \

DEBUG_TYPE(f32, "%ff") \

DEBUG_TYPE_STRUCT(v2, "{ %ff, %ff }", DEBUG_TYPE_MEMBER(v2, X), DEBUG_TYPE_MEMBER(v2, Y)) \

#include "geometer_live.h"

#define DEBUG_HIERARCHY_KINDS \

DEBUG_HIERARCHY_KIND(debug_variable, Live) \

DEBUG_HIERARCHY_KIND(debug_variable, Observed) \

DEBUG_HIERARCHY_KIND(debug_record, Profiling)

#define DEBUG_HIERARCHY_MULTIPLE 4

#include <live_edit/hierarchy.h>

// minimal prefix to prevent collision with stdio

#define STB_SPRINTF_DECORATE(fn) s##fn

#include <stb_sprintf.h>

#include <maths.h>

#include <intrinsics.h>

#define LOGGING 0

#include <debug.h>

#include "geometry.h"

#include <platform.h>

#include <memory.h>

#include "gfx.h"

#include <fonts.h>

#include <input.h>

#include <misc.h>

#define DEBUG_TWEAK_IMPLEMENTATION

#include <live_edit/live_variable.h>

#define POINT_EPSILON 0.02f

#include "geometer_filetype.h"

typedef action_v2 action;

typedef basis_v2 basis;

typedef shape_v1 shape; shape gZeroShape;

typedef arena_type(shape); typedef union shape_arena shape_arena;

typedef arena_type(v2); typedef union v2_arena v2_arena; // repeated from macro - just for syntax highlighting

typedef arena_type(u8); typedef union u8_arena u8_arena; // repeated from macro - just for syntax highlighting

typedef arena_type(uint); typedef union uint_arena uint_arena; // repeated from macro - just for syntax highlighting

typedef arena_type(action); typedef union action_arena action_arena;

typedef enum file_action

{

FILE_None = 0,

FILE_Save,

FILE_Open,

FILE_New,

// TODO (feature): FILE_ExportPNG,

FILE_ExportSVG,

FILE_Close

} file_action;

typedef struct platform_request

{

b32 NewWindow;

file_action Action;

b32 Pan;

} platform_request;

#define INITIAL_ZOOM 0.1f

#define DefaultBasis (basis){ (v2){1.f, 0.f}, (v2){0.f, 0.f}, INITIAL_ZOOM }

typedef enum input_mode

{

MODE_Normal = 0,

MODE_SetBasis,

MODE_SetLength,

MODE_QuickPtOrSeg,

MODE_Draw,

MODE_ExtendArc,

MODE_ExtendSeg,

MODE_SetPerp,

MODE_BoxSelect,

MODE_Selected,

MODE_AddToSelection,

MODE_DragMove,

MODE_RmFromSelection,

MODE_Count,

/* MODE_START_Select = MODE_DragSelect, */

/* MODE_END_Select = MODE_RmFromSelection, */

/* MODE_START_Draw = MODE_QuickPtOrSeg, */

/* MODE_END_Draw = MODE_SetPerp, */

} input_mode;

char *InputModeText[] =

{

"MODE_Normal",

"MODE_SetBasis",

"MODE_SetLength",

"MODE_BoxSelect",

"MODE_Selected",

"MODE_AddToSelection",

"MODE_DragMove",

"MODE_RmFromSelection",

"MODE_QuickPtOrSeg",

"MODE_Draw",

"MODE_ExtendArc",

"MODE_ExtendSeg",

"MODE_SetPerp",

};

internal inline b32

ShapeEq(shape S1, shape S2)

{

b32 Result = S1.Kind == S2.Kind &&

S1.P[0] == S2.P[0] &&

S1.P[1] == S2.P[1] &&

S1.P[2] == S2.P[2];

return Result;

}

// TODO: other smears

#define FN_CIRCLE(name) void name(struct draw_buffer *Draw, v2 Centre, f32 Rad 8000 ius, colour Colour)

#define FN_2VEC(name, v_1, v_2) void name(struct draw_buffer *Draw, v2 v_1, v2 v_2, colour Colour)

struct draw_buffer;

#define FN_DrawSeg( name) FN_2VEC(name, Point1, Point2)

#define FN_DrawLine( name) FN_2VEC(name, P, Dir)

#define FN_DrawCircleFill(name) FN_CIRCLE(name)

#define FN_DrawCircleLine(name) FN_CIRCLE(name)

#define FN_DrawRectFill( name) FN_2VEC(name, vMin, vMax)

#define FN_DrawRectLine( name) FN_2VEC(name, vMin, vMax)

#define FN_DrawArcLine( name) void name(struct draw_buffer *Draw, v2 Centre, f32 Radius, v2 A, v2 B, colour Colour)

#define FN_ClearBuffer( name) void name(image_buffer Buffer)

#define FN_ClipBuffer( name) image_buffer name(image_buffer Buffer, v2 Offset, v2 Size)

#define FN_DrawCircleLineSmear(name) FN_CIRCLE(name)

#define FN(prefix, fn) FN_##fn (prefix ## fn)

#define DRAW_FNS \

DRAW_FN(DrawSeg) \

DRAW_FN(DrawLine) \

DRAW_FN(DrawCircleFill) \

DRAW_FN(DrawCircleLine) \

DRAW_FN(DrawCircleLineSmear) \

DRAW_FN(DrawArcLine) \

DRAW_FN(DrawRectFill) \

DRAW_FN(DrawRectLine) \

DRAW_FN(ClearBuffer) \

DRAW_FN(ClipBuffer) \

#define DRAW_FN(name)\

typedef FN_## name (fn_## name);

DRAW_FNS

#undef DRAW_FN

typedef struct draw_buffer

{

enum {

DRAW_Software,

DRAW_Hardware,

} Kind;

// TODO: unions etc

image_buffer Buffer;

f32 StrokeWidth;

v2 Smear;

#define DRAW_FN(name)\

fn_##name *name;

DRAW_FNS

#undef DRAW_FN

// TODO: String

} draw_buffer;

typedef void drawstring(image_buffer *ImgBuffer, font *Font, char *Str, f32 SizeInEms, f32 XOffset, f32 YOffset, b32 InvDirection, colour Colour);

typedef struct debug

{

image_buffer Buffer;

drawstring *Print;

font Font;

v2 P;

f32 FontSize;

} debug;

global_variable debug Debug;

#define DebugPrint() Debug.Print(&Debug.Buffer, &Debug.Font, DebugText.Text, Debug.FontSize, Debug.P.X, Debug.P.Y, 0, BLACK)

typedef enum {

FX_Smear,

FX_COUNT,

} fx;

// TODO: add prev valid shape snap point for when cursor is at circle centre

typedef struct state

{

// TODO (opt): PointStatus now just a marker for free points...

// could use bit vector? NaN in the point values?

v2_arena maPoints;

v2_arena maIntersects;

// Could optimize by keeping sorted

v2_arena maPointsOnScreen;

uint_arena maSelectedPoints;

shape_arena maShapesNearScreen;

shape_arena maShapes;

u8_arena maPointStatus;

uint_arena maPointLayer;

action_arena maActions;

basis Basis;

basis pBasis;

f32 tBasis;

uint iCurrentLayer;

uint iSaveAction;

uint iCurrentAction;

uint iLastAction;

uint iLastPoint;

uint iLastShape;

u64 FrameCount;

f32 dt;

f32 dtWork;

f32 Length;

f32 pLength;

f32 LengthStores[26];

font DefaultFont;

uint cchFilePath;

char *FilePath; // allocc'd

// TODO: turn bools into flags?

b32 ShowHelpInfo;

b32 ArcSwapDirection;

b32 ShowLayerDrawer; // somewhat redundant with t

f32 tLayerDrawer;

input_mode InputMode;

// TODO: Consolidate to 2 points used as determined by flags

uint ipoDrag; // TODO: consolidate into ipoSelect

v2 poArcStart;

v2 poSelect;

v2 poSaved;

v2 PerpDir;

v2 pSnapMouseP; // TODO (opt): remove?

f32 tSnapMouseP;

b8 FX[FX_COUNT];

u8 SavedStatus[2];

// NOTE: woefully underspecced:

u64 OverflowTest;

} state;

#include "geometer_core.c"

#define UPDATE_AND_RENDER(name) platform_request name(draw_buffer *Draw, memory *Memory, input Input)

DECLARE_DEBUG_FUNCTION;

#define TEST_INPUT() DrawRectangleFilled(ScreenBuffer, Origin, ScreenSize, RED)

#define TEST_INPUT2() DrawRectangleFilled(ScreenBuffer, Origin, ScreenSize, GREEN)

#define TEST_INPUT3() DrawRectangleFilled(ScreenBuffer, Origin, ScreenSize, BLUE)

#define GEOMETER_H

#endif

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