early-access version 1611

2021-04-18 05:35:25 +02:00
parent 16f54e367d
commit 18db69f039
1409 changed files with 545335 additions and 10 deletions
--- a/externals/SDL/src/render/software/SDL_drawpoint.c
+++ b/externals/SDL/src/render/software/SDL_drawpoint.c
@@ -0,0 +1,114 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED
+
+#include "SDL_draw.h"
+#include "SDL_drawpoint.h"
+
+
+int
+SDL_DrawPoint(SDL_Surface * dst, int x, int y, Uint32 color)
+{
+    if (!dst) {
+        return SDL_SetError("Passed NULL destination surface");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_DrawPoint(): Unsupported surface format");
+    }
+
+    /* Perform clipping */
+    if (x < dst->clip_rect.x || y < dst->clip_rect.y ||
+        x >= (dst->clip_rect.x + dst->clip_rect.w) ||
+        y >= (dst->clip_rect.y + dst->clip_rect.h)) {
+        return 0;
+    }
+
+    switch (dst->format->BytesPerPixel) {
+    case 1:
+        DRAW_FASTSETPIXELXY1(x, y);
+        break;
+    case 2:
+        DRAW_FASTSETPIXELXY2(x, y);
+        break;
+    case 3:
+        return SDL_Unsupported();
+    case 4:
+        DRAW_FASTSETPIXELXY4(x, y);
+        break;
+    }
+    return 0;
+}
+
+int
+SDL_DrawPoints(SDL_Surface * dst, const SDL_Point * points, int count,
+               Uint32 color)
+{
+    int minx, miny;
+    int maxx, maxy;
+    int i;
+    int x, y;
+
+    if (!dst) {
+        return SDL_SetError("Passed NULL destination surface");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_DrawPoints(): Unsupported surface format");
+    }
+
+    minx = dst->clip_rect.x;
+    maxx = dst->clip_rect.x + dst->clip_rect.w - 1;
+    miny = dst->clip_rect.y;
+    maxy = dst->clip_rect.y + dst->clip_rect.h - 1;
+
+    for (i = 0; i < count; ++i) {
+        x = points[i].x;
+        y = points[i].y;
+
+        if (x < minx || x > maxx || y < miny || y > maxy) {
+            continue;
+        }
+
+        switch (dst->format->BytesPerPixel) {
+        case 1:
+            DRAW_FASTSETPIXELXY1(x, y);
+            break;
+        case 2:
+            DRAW_FASTSETPIXELXY2(x, y);
+            break;
+        case 3:
+            return SDL_Unsupported();
+        case 4:
+            DRAW_FASTSETPIXELXY4(x, y);
+            break;
+        }
+    }
+    return 0;
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */
+
+/* vi: set ts=4 sw=4 expandtab: */