Skip to content

W
wine-cw
Commit 307ee761 authored by Mike McCormack's avatar Mike McCormack Committed by Alexandre Julliard
Browse files
Options

Optimize GdiGradientFill by drawing lines instead of pixels.

parent 01fefd63
Show whitespace changes
Inline Side-by-side
Showing with 24 additions and 6 deletions
dlls/gdi/painting.c
View file @ 307ee761
...@@ -1093,7 +1093,7 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert, ...@@ -1093,7 +1093,7 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert,
TRIVERTEX *v2 = vert_array + rect->LowerRight; TRIVERTEX *v2 = vert_array + rect->LowerRight;
int y1 = v1->y < v2->y ? v1->y : v2->y; int y1 = v1->y < v2->y ? v1->y : v2->y;
int y2 = v2->y > v1->y ? v2->y : v1->y; int y2 = v2->y > v1->y ? v2->y : v1->y;
int x, y, dx; int x, dx;
if (v1->x > v2->x) if (v1->x > v2->x)
{ {
TRIVERTEX *t = v2; TRIVERTEX *t = v2;
...@@ -1103,11 +1103,20 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert, ...@@ -1103,11 +1103,20 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert,
dx = v2->x - v1->x; dx = v2->x - v1->x;
for (x = 0; x < dx; x++) for (x = 0; x < dx; x++)
{ {
for (y = y1; y < y2; y++) POINT pts[2];
SetPixel (hdc, x + v1->x, y, RGB( HPEN hPen, hOldPen;
hPen = CreatePen( PS_SOLID, 1, RGB(
(v1->Red * (dx - x) + v2->Red * x) / dx >> 8, (v1->Red * (dx - x) + v2->Red * x) / dx >> 8,
(v1->Green * (dx - x) + v2->Green * x) / dx >> 8, (v1->Green * (dx - x) + v2->Green * x) / dx >> 8,
(v1->Blue * (dx - x) + v2->Blue * x) / dx >> 8)); (v1->Blue * (dx - x) + v2->Blue * x) / dx >> 8));
hOldPen = SelectObject( hdc, hPen );
pts[0].x = x;
pts[0].y = y1;
pts[1].x = x;
pts[1].y = y2;
Polyline( hdc, &pts[0], 2 );
DeleteObject( SelectObject(hdc, hOldPen ) );
} }
} }
break; break;
...@@ -1119,7 +1128,7 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert, ...@@ -1119,7 +1128,7 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert,
TRIVERTEX *v2 = vert_array + rect->LowerRight; TRIVERTEX *v2 = vert_array + rect->LowerRight;
int x1 = v1->x < v2->x ? v1->x : v2->x; int x1 = v1->x < v2->x ? v1->x : v2->x;
int x2 = v2->x > v1->x ? v2->x : v1->x; int x2 = v2->x > v1->x ? v2->x : v1->x;
int x, y, dy; int y, dy;
if (v1->y > v2->y) if (v1->y > v2->y)
{ {
TRIVERTEX *t = v2; TRIVERTEX *t = v2;
...@@ -1129,11 +1138,20 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert, ...@@ -1129,11 +1138,20 @@ BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert,
dy = v2->y - v1->y; dy = v2->y - v1->y;
for (y = 0; y < dy; y++) for (y = 0; y < dy; y++)
{ {
for (x = x1; x < x2; x++) POINT pts[2];
SetPixel (hdc, x, y + v1->y, RGB( HPEN hPen, hOldPen;
hPen = CreatePen( PS_SOLID, 1, RGB(
(v1->Red * (dy - y) + v2->Red * y) / dy >> 8, (v1->Red * (dy - y) + v2->Red * y) / dy >> 8,
(v1->Green * (dy - y) + v2->Green * y) / dy >> 8, (v1->Green * (dy - y) + v2->Green * y) / dy >> 8,
(v1->Blue * (dy - y) + v2->Blue * y) / dy >> 8)); (v1->Blue * (dy - y) + v2->Blue * y) / dy >> 8));
hOldPen = SelectObject( hdc, hPen );
pts[0].x = x1;
pts[0].y = y;
pts[1].x = x2;
pts[1].y = y;
Polyline( hdc, &pts[0], 2 );
DeleteObject( SelectObject(hdc, hOldPen ) );
} }
} }
break; break;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment