Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Implement more drawing code

Browse Source 
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2628 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
shadow303 2003-02-03 00:53:16 +00:00
parent f5b05b5ac5
commit 3ffc009720
2 changed files with 184 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

185
src/servers/app/server/AccelerantDriver.cpp
View File

@ -182,7 +182,7 @@ bool AccelerantDriver::Initialize(void)
*/
void AccelerantDriver::Shutdown(void)
{
uninit_accelerant UninitAccelerant = (uninit_accelerant)(*accelerant_hook)(B_UNINIT_ACCELERANT,NULL);
uninit_accelerant UninitAccelerant = (uninit_accelerant)accelerant_hook(B_UNINIT_ACCELERANT,NULL);
if ( UninitAccelerant )
UninitAccelerant();
if (accelerant_image >= 0)
@ -299,7 +299,6 @@ void AccelerantDriver::FillPolygon(BPoint *ptlist, int32 numpts, BRect rect, Lay
void AccelerantDriver::FillRect(BRect r, LayerData *d, int8 *pat)
{
/* Need to add check for possible hardware acceleration of this */
/* Probably need to verify that rectangle is in bounds */
/* Need to deal with pattern */
_Lock();
@ -470,6 +469,57 @@ void AccelerantDriver::SetCursor(ServerCursor *cursor)
*/
void AccelerantDriver::StrokeBezier(BPoint *pts, LayerData *d, int8 *pat)
{
/* Need to add bounds checking code */
/* Probably should check to make sure that we have at least 4 points */
double Ax, Bx, Cx, Dx;
double Ay, By, Cy, Dy;
int x, y;
int lastx=-1, lasty=-1;
double t;
double dt = .001;
double dt2, dt3;
double X, Y, dx, ddx, dddx, dy, ddy, dddy;
Ax = -pts[0].x + 3*pts[1].x - 3*pts[2].x + pts[3].x;
Bx = 3*pts[0].x - 6*pts[1].x + 3*pts[2].x;
Cx = -3*pts[0].x + 3*pts[1].x;
Dx = pts[0].x;
Ay = -pts[0].y + 3*pts[1].y - 3*pts[2].y + pts[3].y;
By = 3*pts[0].y - 6*pts[1].y + 3*pts[2].y;
Cy = -3*pts[0].y + 3*pts[1].y;
Dy = pts[0].y;
dt2 = dt * dt;
dt3 = dt2 * dt;
X = Dx;
dx = Ax*dt3 + Bx*dt2 + Cx*dt;
ddx = 6*Ax*dt3 + 2*Bx*dt2;
dddx = 6*Ax*dt3;
Y = Dy;
dy = Ay*dt3 + By*dt2 + Cy*dt;
ddy = 6*Ay*dt3 + 2*By*dt2;
dddy = 6*Ay*dt3;
lastx = -1;
lasty = -1;
for (t=0; t<=1; t+=dt)
{
x = ROUND(X);
y = ROUND(Y);
if ( (x!=lastx) || (y!=lasty) )
SetThickPixel(x,y,d->pensize,d->highcolor);
lastx = x;
lasty = y;
X += dx;
dx += ddx;
ddx += dddx;
Y += dy;
dy += ddy;
ddy += dddy;
}
}
/*!
@ -497,6 +547,33 @@ void AccelerantDriver::StrokeEllipse(BRect r, LayerData *d, int8 *pat)
*/
void AccelerantDriver::StrokeLine(BPoint start, BPoint end, LayerData *d, int8 *pat)
{
_Lock();
int x1 = ROUND(start.x);
int y1 = ROUND(start.y);
int x2 = ROUND(end.x);
int y2 = ROUND(end.y);
int dx = x2 - x1;
int dy = y2 - y1;
int steps, k;
double xInc, yInc;
double x = x1;
double y = y1;
if ( abs(dx) > abs(dy) )
steps = abs(dx);
else
steps = abs(dy);
xInc = dx / (double) steps;
yInc = dy / (double) steps;
SetPixel(ROUND(x),ROUND(y),d->highcolor);
for (k=0; k<steps; k++)
{
x += xInc;
y += yInc;
SetPixel(ROUND(x),ROUND(y),d->highcolor);
}
_Unlock();
}
/*!
@ -703,3 +780,107 @@ void AccelerantDriver::GetTruncatedStrings( const char **instrings, int32 string
{
}
void AccelerantDriver::SetPixel(int x, int y, RGBColor col)
{
switch (mDisplayMode.space)
{
case B_CMAP8:
{
} break;
case B_RGB16_BIG:
case B_RGB16_LITTLE:
case B_RGB15_BIG:
case B_RGBA15_BIG:
case B_RGB15_LITTLE:
case B_RGBA15_LITTLE:
{
} break;
case B_RGB32_BIG:
case B_RGBA32_BIG:
case B_RGB32_LITTLE:
case B_RGBA32_LITTLE:
{
uint32 *fb = (uint32 *)((uint8 *)mFrameBufferConfig.frame_buffer + y*mFrameBufferConfig.bytes_per_row);
rgb_color color = col.GetColor32();
fb[x] = (color.alpha << 24) | (color.red << 16) | (color.green << 8) | (color.blue);
} break;
default:
printf("Error: Unknown color space\n");
}
}
void AccelerantDriver::SetThickPixel(int x, int y, int thick, RGBColor col)
{
switch (mDisplayMode.space)
{
case B_CMAP8:
{
} break;
case B_RGB16_BIG:
case B_RGB16_LITTLE:
case B_RGB15_BIG:
case B_RGBA15_BIG:
case B_RGB15_LITTLE:
case B_RGBA15_LITTLE:
{
} break;
case B_RGB32_BIG:
case B_RGBA32_BIG:
case B_RGB32_LITTLE:
case B_RGBA32_LITTLE:
{
int i,j;
uint32 *fb = (uint32 *)((uint8 *)mFrameBufferConfig.frame_buffer + (y-thick/2)*mFrameBufferConfig.bytes_per_row) + x-thick/2;
rgb_color color = col.GetColor32();
uint32 drawcolor = (color.alpha << 24) | (color.red << 16) | (color.green << 8) | (color.blue);
for (i=0; i<thick; i++)
{
for (j=0; j<thick; j++)
{
fb[j] = drawcolor;
}
fb = (uint32 *)((uint8 *)fb + mFrameBufferConfig.bytes_per_row);
}
} break;
default:
printf("Error: Unknown color space\n");
}
}
void AccelerantDriver::HLine(int32 x1, int32 x2, int32 y, RGBColor col)
{
switch (mDisplayMode.space)
{
case B_CMAP8:
{
} break;
case B_RGB16_BIG:
case B_RGB16_LITTLE:
case B_RGB15_BIG:
case B_RGBA15_BIG:
case B_RGB15_LITTLE:
case B_RGBA15_LITTLE:
{
} break;
case B_RGB32_BIG:
case B_RGBA32_BIG:
case B_RGB32_LITTLE:
case B_RGBA32_LITTLE:
{
uint32 *fb = (uint32 *)((uint8 *)mFrameBufferConfig.frame_buffer + y*mFrameBufferConfig.bytes_per_row);
rgb_color color = col.GetColor32();
uint32 drawcolor = (color.alpha << 24) | (color.red << 16) | (color.green << 8) | (color.blue);
int x;
if ( x1 > x2 )
{
x = x2;
x2 = x1;
x1 = x;
}
for (x=x1; x<x2; x++)
fb[x] = drawcolor;
} break;
default:
printf("Error: Unknown color space\n");
}
}

2
src/servers/app/server/AccelerantDriver.h
View File

@ -115,7 +115,7 @@ protected:
void ExtractToBitmap(ServerBitmap *destbmp, BRect destrect, BRect sourcerect);
void SetPixelPattern(int x, int y, uint8 *pattern, uint8 patternindex);
void Line(BPoint start, BPoint end, LayerData *d, int8 *pat);
void HLine(int32 x1, int32 x2, int32 y, RGBColor color);
void HLine(int32 x1, int32 x2, int32 y, RGBColor col);
rgb_color GetBlitColor(rgb_color src, rgb_color dest, LayerData *d, bool use_high=true);
void SetPixel(int x, int y, RGBColor col);
void SetPixel32(int x, int y, rgb_color col);