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Use floating point values for viewport, clip rectangle, and texture sizes

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These are integer values internally, but the API has been changed to make it easier to mix other render code with querying those values.

Fixes https://github.com/libsdl-org/SDL/issues/7519
This commit is contained in:
Sam Lantinga
2024-06-12 09:21:02 -07:00
parent 463984ec20
commit 9fb5a9ccac
29 changed files with 624 additions and 585 deletions
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34
test/testdraw.c
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@@ -43,7 +43,7 @@ static void DrawPoints(SDL_Renderer *renderer)
{
int i;
float x, y;
SDL_Rect viewport;
SDL_FRect viewport;
/* Query the sizes */
SDL_GetRenderViewport(renderer, &viewport);
@@ -75,8 +75,8 @@ static void DrawPoints(SDL_Renderer *renderer)
SDL_SetRenderDrawColor(renderer, 255, (Uint8)current_color,
(Uint8)current_color, (Uint8)current_alpha);
x = (float)(rand() % viewport.w);
y = (float)(rand() % viewport.h);
x = (float)(rand() % (int)viewport.w);
y = (float)(rand() % (int)viewport.h);
SDL_RenderPoint(renderer, x, y);
}
}
@@ -85,7 +85,7 @@ static void DrawLines(SDL_Renderer *renderer)
{
int i;
float x1, y1, x2, y2;
SDL_Rect viewport;
SDL_FRect viewport;
/* Query the sizes */
SDL_GetRenderViewport(renderer, &viewport);
@@ -118,15 +118,15 @@ static void DrawLines(SDL_Renderer *renderer)
(Uint8)current_color, (Uint8)current_alpha);
if (i == 0) {
SDL_RenderLine(renderer, 0.0f, 0.0f, (float)(viewport.w - 1), (float)(viewport.h - 1));
SDL_RenderLine(renderer, 0.0f, (float)(viewport.h - 1), (float)(viewport.w - 1), 0.0f);
SDL_RenderLine(renderer, 0.0f, (float)(viewport.h / 2), (float)(viewport.w - 1), (float)(viewport.h / 2));
SDL_RenderLine(renderer, (float)(viewport.w / 2), 0.0f, (float)(viewport.w / 2), (float)(viewport.h - 1));
SDL_RenderLine(renderer, 0.0f, 0.0f, (viewport.w - 1), (viewport.h - 1));
SDL_RenderLine(renderer, 0.0f, (viewport.h - 1), (viewport.w - 1), 0.0f);
SDL_RenderLine(renderer, 0.0f, (viewport.h / 2), (viewport.w - 1), (viewport.h / 2));
SDL_RenderLine(renderer, (viewport.w / 2), 0.0f, (viewport.w / 2), (viewport.h - 1));
} else {
x1 = (float)((rand() % (viewport.w * 2)) - viewport.w);
x2 = (float)((rand() % (viewport.w * 2)) - viewport.w);
y1 = (float)((rand() % (viewport.h * 2)) - viewport.h);
y2 = (float)((rand() % (viewport.h * 2)) - viewport.h);
x1 = ((rand() % ((int)viewport.w * 2)) - viewport.w);
x2 = ((rand() % ((int)viewport.w * 2)) - viewport.w);
y1 = ((rand() % ((int)viewport.h * 2)) - viewport.h);
y2 = ((rand() % ((int)viewport.h * 2)) - viewport.h);
SDL_RenderLine(renderer, x1, y1, x2, y2);
}
}
@@ -136,7 +136,7 @@ static void DrawRects(SDL_Renderer *renderer)
{
int i;
SDL_FRect rect;
SDL_Rect viewport;
SDL_FRect viewport;
/* Query the sizes */
SDL_GetRenderViewport(renderer, &viewport);
@@ -168,10 +168,10 @@ static void DrawRects(SDL_Renderer *renderer)
SDL_SetRenderDrawColor(renderer, 255, (Uint8)current_color,
(Uint8)current_color, (Uint8)current_alpha);
rect.w = (float)(rand() % (viewport.h / 2));
rect.h = (float)(rand() % (viewport.h / 2));
rect.x = (float)((rand() % (viewport.w * 2) - viewport.w) - (rect.w / 2));
rect.y = (float)((rand() % (viewport.h * 2) - viewport.h) - (rect.h / 2));
rect.w = (float)(rand() % ((int)viewport.h / 2));
rect.h = (float)(rand() % ((int)viewport.h / 2));
rect.x = ((rand() % ((int)viewport.w * 2) - viewport.w) - (rect.w / 2));
rect.y = ((rand() % ((int)viewport.h * 2) - viewport.h) - (rect.h / 2));
SDL_RenderFillRect(renderer, &rect);
}
}