gitea/SDL3_fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Backed out the viewport and cliprect changes in 9fb5a9ccac

Browse Source 
This ended up being lots of application code churn without any real benefit in practice.
This commit is contained in:
Sam Lantinga
2024-06-12 19:08:06 -07:00
parent b2ccfc0b6f
commit 80a907e0e6
28 changed files with 238 additions and 275 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
test/testviewport.c
View File

@@ -24,7 +24,7 @@
static SDLTest_CommonState *state;
static SDL_FRect viewport;
static SDL_Rect viewport;
static int done, j;
static SDL_bool use_target = SDL_FALSE;
#ifdef SDL_PLATFORM_EMSCRIPTEN
@@ -47,7 +47,7 @@ quit(int rc)
static void DrawOnViewport(SDL_Renderer *renderer)
{
SDL_FRect rect;
SDL_FRect cliprect;
SDL_Rect cliprect;
float w, h;
/* Set the viewport */
@@ -59,47 +59,47 @@ static void DrawOnViewport(SDL_Renderer *renderer)
/* Test inside points */
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0x00, 0xFF);
SDL_RenderPoint(renderer, (viewport.h / 2 + 20), (viewport.w / 2));
SDL_RenderPoint(renderer, (viewport.h / 2 - 20), (viewport.w / 2));
SDL_RenderPoint(renderer, (viewport.h / 2), (viewport.w / 2 - 20));
SDL_RenderPoint(renderer, (viewport.h / 2), (viewport.w / 2 + 20));
SDL_RenderPoint(renderer, (float)(viewport.h / 2 + 20), (float)(viewport.w / 2));
SDL_RenderPoint(renderer, (float)(viewport.h / 2 - 20), (float)(viewport.w / 2));
SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 - 20));
SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 + 20));
/* Test horizontal and vertical lines */
SDL_SetRenderDrawColor(renderer, 0x00, 0xFF, 0x00, 0xFF);
SDL_RenderLine(renderer, 1.0f, 0.0f, (viewport.w - 2), 0.0f);
SDL_RenderLine(renderer, 1.0f, (viewport.h - 1), (viewport.w - 2), (viewport.h - 1));
SDL_RenderLine(renderer, 0.0f, 1.0f, 0.0f, (viewport.h - 2));
SDL_RenderLine(renderer, (viewport.w - 1), 1.0f, (viewport.w - 1), (viewport.h - 2));
SDL_RenderLine(renderer, 1.0f, 0.0f, (float)(viewport.w - 2), 0.0f);
SDL_RenderLine(renderer, 1.0f, (float)(viewport.h - 1), (float)(viewport.w - 2), (float)(viewport.h - 1));
SDL_RenderLine(renderer, 0.0f, 1.0f, 0.0f, (float)(viewport.h - 2));
SDL_RenderLine(renderer, (float)(viewport.w - 1), 1.0f, (float)(viewport.w - 1), (float)(viewport.h - 2));
/* Test diagonal lines */
SDL_SetRenderDrawColor(renderer, 0x00, 0xff, 0xFF, 0xFF);
SDL_RenderLine(renderer, 0.0f, 0.0f, (viewport.w - 1), (viewport.h - 1));
SDL_RenderLine(renderer, (viewport.w - 1), 0.0f, 0.0f, (viewport.h - 1));
SDL_RenderLine(renderer, 0.0f, 0.0f, (float)(viewport.w - 1), (float)(viewport.h - 1));
SDL_RenderLine(renderer, (float)(viewport.w - 1), 0.0f, 0.0f, (float)(viewport.h - 1));
/* Test outside points */
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0x00, 0xFF);
SDL_RenderPoint(renderer, (viewport.h / 2 + viewport.h), (viewport.w / 2));
SDL_RenderPoint(renderer, (viewport.h / 2 - viewport.h), (viewport.w / 2));
SDL_RenderPoint(renderer, (viewport.h / 2), (viewport.w / 2 - viewport.w));
SDL_RenderPoint(renderer, (viewport.h / 2), (viewport.w / 2 + viewport.w));
SDL_RenderPoint(renderer, (float)(viewport.h / 2 + viewport.h), (float)(viewport.w / 2));
SDL_RenderPoint(renderer, (float)(viewport.h / 2 - viewport.h), (float)(viewport.w / 2));
SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 - viewport.w));
SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 + viewport.w));
/* Add a box at the top */
rect.w = 8.0f;
rect.h = 8.0f;
rect.x = ((viewport.w - rect.w) / 2);
rect.x = (float)((viewport.w - rect.w) / 2);
rect.y = 0.0f;
SDL_RenderFillRect(renderer, &rect);
/* Add a clip rect and fill it with the sprite */
SDL_GetTextureSize(sprite, &w, &h);
cliprect.x = (viewport.w - w) / 2;
cliprect.y = (viewport.h - h) / 2;
cliprect.w = w;
cliprect.h = h;
rect.x = cliprect.x;
rect.y = cliprect.y;
rect.w = cliprect.w;
rect.h = cliprect.h;
rect.x = (viewport.w - w) / 2;
rect.y = (viewport.h - h) / 2;
rect.w = w;
rect.h = h;
cliprect.x = (int)rect.x;
cliprect.y = (int)rect.y;
cliprect.w = (int)rect.w;
cliprect.h = (int)rect.h;
SDL_SetRenderClipRect(renderer, &cliprect);
SDL_RenderTexture(renderer, sprite, NULL, &rect);
SDL_SetRenderClipRect(renderer, NULL);
@@ -127,7 +127,7 @@ static void loop(void)
viewport.w = 100 + j * 50;
viewport.h = 100 + j * 50;
j = (j + 1) % 4;
SDL_Log("Current Viewport x=%g y=%g w=%g h=%g", viewport.x, viewport.y, viewport.w, viewport.h);
SDL_Log("Current Viewport x=%i y=%i w=%i h=%i", viewport.x, viewport.y, viewport.w, viewport.h);
for (i = 0; i < state->num_windows; ++i) {
if (state->windows[i] == NULL) {