pandory500/SDL-mirror
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Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.

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Renamed SDL_RenderPoint() and SDL_RenderLine() to SDL_RenderDrawPoint() and SDL_RenderDrawLine().
Added API for rectangle drawing (as opposed to filling)
Added placeholder API functions for circles and ellipses ... I'm not sure whether these will stay.
Optimized software line drawing quite a bit.
Added support for Wu's anti-aliased line drawing, currently disabled by default.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404346
This commit is contained in:
Sam Lantinga 2009-12-23 01:55:00 +00:00
parent d45158ea85
commit 6da163ab81
24 changed files with 1685 additions and 549 deletions
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20
test/testdraw2.c
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@ -58,7 +58,7 @@ DrawPoints(SDL_WindowID window)
x = rand() % window_w;
y = rand() % window_h;
SDL_RenderPoint(x, y);
SDL_RenderDrawPoint(x, y);
}
SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
}
@ -102,16 +102,16 @@ DrawLines(SDL_WindowID window)
(Uint8) current_color, (Uint8) current_alpha);
if (i == 0) {
SDL_RenderLine(0, 0, window_w - 1, window_h - 1);
SDL_RenderLine(0, window_h - 1, window_w - 1, 0);
SDL_RenderLine(0, window_h / 2, window_w - 1, window_h / 2);
SDL_RenderLine(window_w / 2, 0, window_w / 2, window_h - 1);
SDL_RenderDrawLine(0, 0, window_w - 1, window_h - 1);
SDL_RenderDrawLine(0, window_h - 1, window_w - 1, 0);
SDL_RenderDrawLine(0, window_h / 2, window_w - 1, window_h / 2);
SDL_RenderDrawLine(window_w / 2, 0, window_w / 2, window_h - 1);
} else {
x1 = (rand() % (window_w*2)) - window_w;
x2 = (rand() % (window_w*2)) - window_w;
y1 = (rand() % (window_h*2)) - window_h;
y2 = (rand() % (window_h*2)) - window_h;
SDL_RenderLine(x1, y1, x2, y2);
SDL_RenderDrawLine(x1, y1, x2, y2);
}
}
SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
@ -159,7 +159,7 @@ DrawRects(SDL_WindowID window)
rect.h = rand() % (window_h / 2);
rect.x = (rand() % (window_w*2) - window_w) - (rect.w / 2);
rect.y = (rand() % (window_h*2) - window_h) - (rect.h / 2);
SDL_RenderRect(&rect);
SDL_RenderFillRect(&rect);
}
SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
}
@ -231,7 +231,7 @@ main(int argc, char *argv[])
for (i = 0; i < state->num_windows; ++i) {
SDL_SelectRenderer(state->windows[i]);
SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
SDL_RenderRect(NULL);
SDL_RenderClear();
}
srand(time(NULL));
@ -251,7 +251,7 @@ main(int argc, char *argv[])
case SDL_WINDOWEVENT_EXPOSED:
SDL_SelectRenderer(event.window.windowID);
SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
SDL_RenderRect(NULL);
SDL_RenderClear();
break;
}
break;
@ -262,7 +262,7 @@ main(int argc, char *argv[])
for (i = 0; i < state->num_windows; ++i) {
SDL_SelectRenderer(state->windows[i]);
SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
SDL_RenderRect(NULL);
SDL_RenderClear();
DrawRects(state->windows[i]);
DrawLines(state->windows[i]);