draw2d.c

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#include <math.h>
 
#include <draw.h>
#include <draw2d.h>
#include <draw3d.h>
 
#include <gif_tags.h>
 
#include <gs_gp.h>
 
// Normal offset
#define OFFSET 2048.0f
 
// Leftmost/Topmost offset (2048.0f - 0.4375f + 1)
#define START_OFFSET 2047.5625f
 
// Bottommost/Rightmost offset (2048.0f + 0.5625f + 1)
#define END_OFFSET 2048.5625f
 
#define DRAW_POINT_NREG 4
#define DRAW_POINT_REGLIST \
                ((u64)GIF_REG_PRIM)  <<  0 | \
                ((u64)GIF_REG_RGBAQ) <<  4 | \
                ((u64)GIF_REG_XYZ2)  <<  8 | \
                ((u64)GIF_REG_NOP)   << 12
 
static char blending = 0;
 
void draw_enable_blending()
{
        blending = 1;
}
 
void draw_disable_blending()
{
        blending = 0;
}
 
qword_t *draw_point(qword_t *q, int context, point_t *point)
{
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_REGLIST,DRAW_POINT_NREG),DRAW_POINT_REGLIST);
        q++;
 
        q->dw[0] = GIF_SET_PRIM(PRIM_POINT,0,0,0,blending,0,0,context,0);
        q->dw[1] = point->color.rgbaq;
        q++;
 
        q->dw[0] = GIF_SET_XYZ(ftoi4(point->v0.x + OFFSET),ftoi4(point->v0.y + OFFSET),point->v0.z);
        q->dw[1] = 0;
        q++;
 
        return q;
 
}
 
#define DRAW_LINE_NREG 4
#define DRAW_LINE_REGLIST \
                ((u64)GIF_REG_PRIM)  <<  0 | \
                ((u64)GIF_REG_RGBAQ) <<  4 | \
                ((u64)GIF_REG_XYZ2)  <<  8 | \
                ((u64)GIF_REG_XYZ2)  << 12
 
qword_t *draw_line(qword_t *q, int context, line_t *line)
{
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_REGLIST,DRAW_LINE_NREG),DRAW_LINE_REGLIST);
        q++;
 
        q->dw[0] = GIF_SET_PRIM(PRIM_LINE,0,0,0,blending,0,0,context,0);
        q->dw[1] = line->color.rgbaq;
        q++;
 
        q->dw[0] = GIF_SET_XYZ(ftoi4(line->v0.x + START_OFFSET),ftoi4(line->v0.y + START_OFFSET),line->v0.z);
        q->dw[1] = GIF_SET_XYZ(ftoi4(line->v1.x + END_OFFSET),ftoi4(line->v1.y + END_OFFSET),line->v0.z);
        q++;
 
        return q;
 
}
 
#define DRAW_TRIANGLE_OUT_NREG 6
#define DRAW_TRIANGLE_OUT_REGLIST \
                ((u64)GIF_REG_PRIM)  <<  0 | \
                ((u64)GIF_REG_RGBAQ) <<  4 | \
                ((u64)GIF_REG_XYZ2)  <<  8 | \
                ((u64)GIF_REG_XYZ2)  << 12 | \
                ((u64)GIF_REG_XYZ2)  << 16 | \
                ((u64)GIF_REG_XYZ2)  << 20
 
qword_t *draw_triangle_outline(qword_t *q, int context, triangle_t *triangle)
{
 
        int __xi0 = ftoi4(triangle->v0.x + OFFSET);
        int __yi0 = ftoi4(triangle->v0.y + OFFSET);
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_REGLIST,DRAW_TRIANGLE_OUT_NREG),DRAW_TRIANGLE_OUT_REGLIST);
        q++;
 
        q->dw[0] = GIF_SET_PRIM(PRIM_LINE_STRIP,0,0,0,blending,0,0,context,0);
        q->dw[1] = triangle->color.rgbaq;
        q++;
 
        q->dw[0] = GIF_SET_XYZ(__xi0,__yi0,triangle->v0.z);
        q->dw[1] = GIF_SET_XYZ(ftoi4(triangle->v1.x + OFFSET),ftoi4(triangle->v1.y + OFFSET),triangle->v0.z);
        q++;
 
        q->dw[0] = GIF_SET_XYZ(ftoi4(triangle->v2.x + OFFSET),ftoi4(triangle->v2.y + OFFSET),triangle->v0.z);
        q->dw[1] = GIF_SET_XYZ(__xi0,__yi0,triangle->v0.z);
        q++;
 
 
        return q;
 
}
 
#define DRAW_TRIANGLE_NREG 6
#define DRAW_TRIANGLE_REGLIST \
                ((u64)GIF_REG_PRIM)  <<  0 | \
                ((u64)GIF_REG_RGBAQ) <<  4 | \
                ((u64)GIF_REG_XYZ2)  <<  8 | \
                ((u64)GIF_REG_XYZ2)  << 12 | \
                ((u64)GIF_REG_XYZ2)  << 16 | \
                ((u64)GIF_REG_NOP)   << 20
 
qword_t *draw_triangle_filled(qword_t *q, int context,triangle_t *triangle)
{
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_REGLIST,DRAW_TRIANGLE_NREG),DRAW_TRIANGLE_REGLIST);
        q++;
 
        q->dw[0] = GIF_SET_PRIM(PRIM_TRIANGLE,0,0,0,blending,0,0,context,0);
        q->dw[1] = triangle->color.rgbaq;
        q++;
 
        q->dw[0] = GIF_SET_XYZ(ftoi4(triangle->v0.x + OFFSET),ftoi4(triangle->v0.y + OFFSET),triangle->v0.z);
        q->dw[1] = GIF_SET_XYZ(ftoi4(triangle->v1.x + OFFSET ),ftoi4(triangle->v1.y + OFFSET),triangle->v0.z);
        q++;
 
        q->dw[0] = GIF_SET_XYZ(ftoi4(triangle->v2.x + OFFSET),ftoi4(triangle->v2.y + OFFSET),triangle->v0.z);
        q->dw[1] = 0;
        q++;
 
        return q;
 
}
 
#define DRAW_RECT_OUT_NREG 8
#define DRAW_RECT_OUT_REGLIST \
                ((u64)GIF_REG_PRIM)  <<  0 | \
                ((u64)GIF_REG_RGBAQ) <<  4 | \
                ((u64)GIF_REG_XYZ2)  <<  8 | \
                ((u64)GIF_REG_XYZ2)  << 12 | \
                ((u64)GIF_REG_XYZ2)  << 16 | \
                ((u64)GIF_REG_XYZ2)  << 20 | \
                ((u64)GIF_REG_XYZ2)  << 24 | \
                ((u64)GIF_REG_NOP)   << 28
 
qword_t *draw_rect_outline(qword_t *q, int context, rect_t *rect)
{
 
        int __xi0 = ftoi4(rect->v0.x + START_OFFSET);
        int __yi0 = ftoi4(rect->v0.y + START_OFFSET);
        int __xi1 = ftoi4(rect->v1.x + END_OFFSET);
        int __yi1 = ftoi4(rect->v1.y + END_OFFSET);
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_REGLIST,DRAW_RECT_OUT_NREG),DRAW_RECT_OUT_REGLIST);
        q++;
 
        q->dw[0] = GIF_SET_PRIM(PRIM_LINE_STRIP,0,0,0,blending,0,0,context,0);
        q->dw[1] = rect->color.rgbaq;
        q++;
 
        q->dw[0] = GIF_SET_XYZ(__xi0,__yi0,rect->v0.z);
        q->dw[1] = GIF_SET_XYZ(__xi1,__yi0,rect->v0.z);
        q++;
 
        q->dw[0] = GIF_SET_XYZ(__xi1,__yi1,rect->v0.z);
        q->dw[1] = GIF_SET_XYZ(__xi0,__yi1,rect->v0.z);
        q++;
 
        q->dw[0] = GIF_SET_XYZ(__xi0,__yi0,rect->v0.z);
        q->dw[1] = 0;
        q++;
 
        return q;
 
}
 
#define DRAW_SPRITE_NREG 4
#define DRAW_SPRITE_REGLIST \
                ((u64)GIF_REG_PRIM)  <<  0 | \
                ((u64)GIF_REG_RGBAQ) <<  4 | \
                ((u64)GIF_REG_XYZ2)  <<  8 | \
                ((u64)GIF_REG_XYZ2)  << 12
 
qword_t *draw_rect_filled(qword_t *q, int context, rect_t *rect)
{
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_REGLIST,DRAW_SPRITE_NREG),DRAW_SPRITE_REGLIST);
        q++;
 
        q->dw[0] = GIF_SET_PRIM(PRIM_SPRITE,0,0,0,blending,0,0,context,0);
        q->dw[1] = rect->color.rgbaq;
        q++;
 
        q->dw[0] = GIF_SET_XYZ(ftoi4(rect->v0.x + START_OFFSET),ftoi4(rect->v0.y + START_OFFSET),rect->v0.z);
        q->dw[1] = GIF_SET_XYZ(ftoi4(rect->v1.x + END_OFFSET),ftoi4(rect->v1.y + END_OFFSET),rect->v0.z);
        q++;
 
        return q;
 
}
 
#define DRAW_SPRITE_TEX_NREG 6
#define DRAW_SPRITE_TEX_REGLIST \
                ((u64)GIF_REG_PRIM)  <<  0 | \
                ((u64)GIF_REG_RGBAQ) <<  4 | \
                ((u64)GIF_REG_UV)    <<  8 | \
                ((u64)GIF_REG_XYZ2)  << 12 | \
                ((u64)GIF_REG_UV)    << 16 | \
                ((u64)GIF_REG_XYZ2)  << 20
 
qword_t *draw_rect_textured(qword_t *q, int context, texrect_t *rect)
{
 
        // Start primitive
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_REGLIST,DRAW_SPRITE_TEX_NREG),DRAW_SPRITE_TEX_REGLIST);
        q++;
 
        // Fill vertex information
        q->dw[0] = GIF_SET_PRIM(PRIM_SPRITE,0,DRAW_ENABLE,0,blending,0,PRIM_MAP_UV,context,0);
        q->dw[1] = rect->color.rgbaq;
        q++;
 
        q->dw[0] = GIF_SET_UV(ftoi4(rect->t0.u),ftoi4(rect->t0.v));
        q->dw[1] = GIF_SET_XYZ(ftoi4(rect->v0.x + START_OFFSET),ftoi4(rect->v0.y + START_OFFSET),rect->v0.z);
        q++;
 
        q->dw[0] = GIF_SET_UV(ftoi4(rect->t1.u),ftoi4(rect->t1.v));
        q->dw[1] = GIF_SET_XYZ(ftoi4(rect->v1.x + END_OFFSET),ftoi4(rect->v1.y + END_OFFSET),rect->v0.z);
        q++;
 
        return q;
 
}
 
qword_t *draw_rect_filled_strips(qword_t *q, int context, rect_t *rect)
{
 
        qword_t *giftag;
 
        int __xi0 = ftoi4(rect->v0.x);
        int __yi0 = ftoi4(rect->v0.y + START_OFFSET);
 
        int __xi1 = ftoi4(rect->v1.x);
        int __yi1 = ftoi4(rect->v1.y + END_OFFSET);
 
        // Start primitive
        PACK_GIFTAG(q,GIF_SET_TAG(2,0,0,0,GIF_FLG_PACKED,1),GIF_REG_AD);
        q++;
 
        PACK_GIFTAG(q,GIF_SET_PRIM(PRIM_SPRITE,0,0,0,blending,0,0,context,0),GIF_REG_PRIM);
        q++;
 
        PACK_GIFTAG(q,rect->color.rgbaq,GIF_REG_RGBAQ);
        q++;
 
        giftag = q;
        q++;
 
        // Fill vertex information in 32 pixel wide strips
        while(__xi0 < __xi1)
        {
 
                //q->dw[0] = GIF_SET_XYZ(ftoi4(__xf0 + START_OFFSET),__yi0,rect->v0.z);
                q->dw[0] = GIF_SET_XYZ(__xi0 + ftoi4(START_OFFSET),__yi0,rect->v0.z);
 
                // 31<<4
                __xi0 += 496;
 
                // Uneven...
                if (__xi0 >= __xi1)
                {
                        __xi0 = __xi1;
                }
 
                q->dw[1] = GIF_SET_XYZ(__xi0 + ftoi4(END_OFFSET),__yi1,rect->v0.z);
 
                // 1<<4
                __xi0 += 16;
 
                q++;
 
        }
 
        PACK_GIFTAG(giftag,GIF_SET_TAG(q-giftag-1,0,0,0,GIF_FLG_REGLIST,2),DRAW_XYZ_REGLIST);
 
        return q;
 
}
 
qword_t *draw_rect_textured_strips(qword_t *q, int context, texrect_t *rect)
{
 
        qword_t *giftag;
 
        // Texel coordinates
        float __uf0 = rect->t0.u;
        int __vi0 = ftoi4(rect->t0.v);
        int __vi1 = ftoi4(rect->t1.v);
 
        // Primitive coordinates
        int __xi0 = ftoi4(rect->v0.x);
        int __yi0 = ftoi4(rect->v0.y + START_OFFSET);
 
        int __xi1 = ftoi4(rect->v1.x);
        int __yi1 = ftoi4(rect->v1.y + END_OFFSET);
        float strip = 0.0f;
 
        // Start primitive
        PACK_GIFTAG(q,GIF_SET_TAG(2,0,0,0,GIF_FLG_PACKED,1),GIF_REG_AD);
        q++;
 
        PACK_GIFTAG(q,GIF_SET_PRIM(PRIM_SPRITE,0,DRAW_ENABLE,0,blending,0,PRIM_MAP_UV,context,0),GIF_REG_PRIM);
        q++;
 
        PACK_GIFTAG(q,rect->color.rgbaq,GIF_REG_RGBAQ);
        q++;
 
        giftag = q;
        q++;
 
        // Fill vertex information in 32 pixel wide strips along with texel information
        while(__xi0 < __xi1)
        {
 
                q->dw[0] = GIF_SET_UV(ftoi4(__uf0),__vi0);
                q->dw[1] = GIF_SET_XYZ(__xi0 + ftoi4(START_OFFSET),__yi0,rect->v0.z);
                q++;
 
                // Due to the GS DDA, 0-32 only draws pixels 0-31
                // Due to the above, texels 0.5 - 30.5 will map 0-31
 
                strip += 32.0f;
 
                __xi0 += 496;
 
                if (__xi0 >= __xi1)
                {
                        __xi0 = __xi1;
                }
 
                __uf0 = rect->t0.u + (strip - 1.5f);
 
                q->dw[0] = GIF_SET_UV(ftoi4(__uf0),__vi1);
                q->dw[1] = GIF_SET_XYZ(__xi0 + ftoi4(END_OFFSET),__yi1,rect->v0.z);
 
                __xi0 += 16;
                q++;
 
        }
 
        PACK_GIFTAG(giftag,GIF_SET_TAG(q-giftag-1,0,0,0,GIF_FLG_REGLIST,2),DRAW_UV_REGLIST);
 
        return q;
 
}
 
qword_t *draw_arc_outline(qword_t *q, int context, point_t *center, float radius, float angle_start, float angle_end)
{
 
        qword_t *giftag;
 
        u64 *dw;
        u64 pdw;
 
        int __xi0 = ftoi4(center->v0.x + OFFSET);
        int __yi0 = ftoi4(center->v0.y + OFFSET);
        int __xi1;
        int __yi1;
        float __arc_radians;
 
        // Start primitive
        PACK_GIFTAG(q,GIF_SET_TAG(2,0,0,0,GIF_FLG_PACKED,1),GIF_REG_AD);
        q++;
 
        PACK_GIFTAG(q,GIF_SET_PRIM(PRIM_LINE_STRIP,0,0,0,blending,0,0,context,0),GIF_REG_PRIM);
        q++;
 
        PACK_GIFTAG(q,center->color.rgbaq,GIF_REG_RGBAQ);
        q++;
 
        giftag = q;
        q++;
 
        dw = (u64*)q;
 
        // Fill vertex information
        for( ; angle_start <= angle_end; angle_start++)
        {
                __arc_radians = angle_start * 0.017453293f;
                __xi1 = (int)((cosf(__arc_radians) * radius) * 16.0f);
                __yi1 = (int)((sinf(__arc_radians) * radius) * 16.0f);
                *dw++ = GIF_SET_XYZ(__xi0 + __xi1,__yi0 + __yi1,center->v0.z);
        }
 
        // Copy the last 64-bits if we haven't completed the last qword
        if ((u32)dw % 16)
        {
 
                pdw = *(dw-1);
                *dw++ = pdw;
 
        }
 
        q = (qword_t*)dw;
 
        PACK_GIFTAG(giftag,GIF_SET_TAG(q-giftag-1,0,0,0,GIF_FLG_REGLIST,2),DRAW_XYZ_REGLIST);
 
        return q;
 
}
 
qword_t *draw_arc_filled(qword_t *q, int context, point_t *center, float radius, float angle_start, float angle_end)
{
 
        qword_t *giftag;
 
        u64 *dw;
        u64 pdw;
 
        int __xi0 = ftoi4(center->v0.x + OFFSET);
        int __yi0 = ftoi4(center->v0.y + OFFSET);
        int __xi1;
        int __yi1;
        float __arc_radians;
 
        // Start primitive
        PACK_GIFTAG(q,GIF_SET_TAG(2,0,0,0,GIF_FLG_PACKED,1),GIF_REG_AD);
        q++;
 
        PACK_GIFTAG(q,GIF_SET_PRIM(PRIM_TRIANGLE_FAN,0,0,0,blending,0,0,context,0),GIF_REG_PRIM);
        q++;
 
        PACK_GIFTAG(q,center->color.rgbaq,GIF_REG_RGBAQ);
        q++;
 
        giftag = q;
        q++;
 
        dw = (u64*)q;
 
        // Fill vertex information
        *dw++ = GIF_SET_XYZ(__xi0,__yi0,center->v0.z);
 
        for( ; angle_start <= angle_end; angle_start++)
        {
                __arc_radians = 0.017453293f * angle_start;
                __xi1 = (int)((cosf(__arc_radians) * radius) * 16.0f);
                __yi1 = (int)((sinf(__arc_radians) * radius) * 16.0f);
                *dw++ = GIF_SET_XYZ(__xi0 + __xi1,__yi0 + __yi1,center->v0.z);
        }
 
        // Copy the last vertex if we're uneven
        if ((u32)dw % 16)
        {
 
                pdw = *(dw-1);
                *dw++ = pdw;
 
        }
 
        q = (qword_t*)dw;
 
        PACK_GIFTAG(giftag,GIF_SET_TAG(q-giftag-1,0,0,0,GIF_FLG_REGLIST,2),DRAW_XYZ_REGLIST);
 
        return q;
 
}
 
qword_t *draw_round_rect_filled(qword_t *q, int context, rect_t *rect)
{
 
        rect_t rect_center;
        rect_t rect_side;
        point_t point_corner;
 
        int center_width;
        int center_height;
 
        float corner_size = 15.0f;
 
        int width = rect->v1.x - rect->v0.x;
        int height = rect->v1.y - rect->v0.y;
 
        center_width = width - (int)(2.0f*corner_size);
        center_height = height - (int)(2.0f*corner_size);
 
        rect_center.color = rect->color;
        rect_side.color = rect->color;
        rect_center.v0.z = rect->v0.z;
        rect_side.v0.z = rect->v0.z;
 
        // Inside rectangle
        rect_center.v0.x = rect->v0.x + corner_size;
        rect_center.v0.y = rect->v0.y + corner_size;
        rect_center.v1.x = rect_center.v0.x + (float)center_width;
        rect_center.v1.y = rect_center.v0.y + (float)center_height;
 
        q = draw_rect_filled_strips(q,context,&rect_center);
 
        // sides
        // top
        rect_side.v0.x = rect_center.v0.x;
        rect_side.v0.y = rect_center.v0.y - corner_size;
        rect_side.v1.x = rect_center.v1.x;
        rect_side.v1.y = rect_center.v0.y - 1.0f;
 
        q = draw_rect_filled_strips(q,context,&rect_side);
 
        // right
        rect_side.v0.x = rect_center.v1.x + 1.0f;
        rect_side.v0.y = rect_center.v0.y;
        rect_side.v1.x = rect_center.v1.x + corner_size;
        rect_side.v1.y = rect_center.v1.y;
 
        q = draw_rect_filled(q,context,&rect_side);
 
        // bottom
        rect_side.v0.x = rect_center.v0.x;
        rect_side.v0.y = rect_center.v1.y + 1.0f;
        rect_side.v1.x = rect_center.v1.x;
        rect_side.v1.y = rect_center.v1.y + corner_size;
 
        q = draw_rect_filled_strips(q,context,&rect_side);
 
        // left
        rect_side.v0.x = rect_center.v0.x - corner_size;
        rect_side.v0.y = rect_center.v0.y;
        rect_side.v1.x = rect_center.v0.x - 1.0f;
        rect_side.v1.y = rect_center.v1.y;
 
        q = draw_rect_filled(q,context,&rect_side);
 
        // corners
        // top right
        point_corner.v0.x = rect_center.v1.x + 1.0f;
        point_corner.v0.y = rect_center.v0.y;
        point_corner.color = rect->color;
 
        q = draw_arc_filled(q,context,&point_corner,corner_size,270.0f,360.0f);
 
        // bottom right
        point_corner.v0.x = rect_center.v1.x + 1.0f;
        point_corner.v0.y = rect_center.v1.y + 1.0f;
        point_corner.color = rect->color;
 
        q = draw_arc_filled(q,context,&point_corner,corner_size,0.0f,90.0f);
 
        // bottom left
        point_corner.v0.x = rect_center.v0.x;
        point_corner.v0.y = rect_center.v1.y + 1.0f;
        point_corner.color = rect->color;
 
        q = draw_arc_filled(q,context,&point_corner,corner_size,90.0f,180.0f);
 
        // top left
        point_corner.v0.x = rect_center.v0.x;
        point_corner.v0.y = rect_center.v0.y;
        point_corner.color = rect->color;
 
        q = draw_arc_filled(q,context,&point_corner,corner_size,180.0f,270.0f);
 
        return q;
 
}
 
qword_t *draw_round_rect_outline(qword_t *q, int context, rect_t *rect)
{
 
        rect_t rect_center;
        line_t line_side;
        point_t point_corner;
 
        int center_width;
        int center_height;
 
        float corner_size = 15.0f;
 
        int width = rect->v1.x - rect->v0.x;
        int height = rect->v1.y - rect->v0.y;
 
        center_width = width - (int)(2.0f*corner_size);
        center_height = height - (int)(2.0f*corner_size);
 
        rect_center.color = rect->color;
        line_side.color = rect->color;
        rect_center.v0.z = rect->v0.z;
        line_side.v0.z = rect->v0.z;
 
        // Inside rectangle
        rect_center.v0.x = rect->v0.x + corner_size;
        rect_center.v0.y = rect->v0.y + corner_size;
        rect_center.v1.x = rect_center.v0.x + (float)center_width;
        rect_center.v1.y = rect_center.v0.y + (float)center_height;
 
        //q = draw_rect_filled_strips(q,context,&rect_center);
 
        // sides
        // top
        line_side.v0.x = rect_center.v0.x;
        line_side.v0.y = rect_center.v0.y - corner_size + 1.0f;
        line_side.v1.x = rect_center.v1.x;
        line_side.v1.y = rect_center.v0.y - corner_size;
 
        q = draw_line(q,context,&line_side);
 
        // right
        line_side.v0.x = rect_center.v1.x + corner_size;
        line_side.v0.y = rect_center.v0.y;
        line_side.v1.x = rect_center.v1.x + corner_size - 1.0f;
        line_side.v1.y = rect_center.v1.y;
 
        q = draw_line(q,context,&line_side);
 
        // bottom
        line_side.v0.x = rect_center.v0.x;
        line_side.v0.y = rect_center.v1.y + corner_size + 1.0f;
        line_side.v1.x = rect_center.v1.x;
        line_side.v1.y = rect_center.v1.y + corner_size;
 
        q = draw_line(q,context,&line_side);
 
        // left
        line_side.v0.x = rect_center.v0.x - corner_size;
        line_side.v0.y = rect_center.v0.y;
        line_side.v1.x = rect_center.v0.x - corner_size - 1.0f;
        line_side.v1.y = rect_center.v1.y;
 
        q = draw_line(q,context,&line_side);
 
        // corners
        // top right
        point_corner.v0.x = rect_center.v1.x;
        point_corner.v0.y = rect_center.v0.y;
        point_corner.color = rect->color;
 
        q = draw_arc_outline(q,context,&point_corner,corner_size,270.0f,360.0f);
 
        // bottom right
        point_corner.v0.x = rect_center.v1.x;
        point_corner.v0.y = rect_center.v1.y;
        point_corner.color = rect->color;
 
        q = draw_arc_outline(q,context,&point_corner,corner_size,0.0f,90.0f);
 
        // bottom left
        point_corner.v0.x = rect_center.v0.x;
        point_corner.v0.y = rect_center.v1.y;
        point_corner.color = rect->color;
 
        q = draw_arc_outline(q,context,&point_corner,corner_size,90.0f,180.0f);
 
        // top left
        point_corner.v0.x = rect_center.v0.x;
        point_corner.v0.y = rect_center.v0.y;
        point_corner.color = rect->color;
 
        q = draw_arc_outline(q,context,&point_corner,corner_size,180.0f,270.0f);
 
        return q;
 
}