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Dialog popup animation speed fix

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Play the dialog popup animation at a consistent speed across platforms.

Also, fix the issue with dialog box trail not clearing after the final
render.
This commit is contained in:
Mark Kim 2023-03-14 18:14:05 -04:00
parent a66c25dad5
commit 7103897bc7
2 changed files with 38 additions and 18 deletions
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4
docs/CHANGES.txt
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@ -181,6 +181,10 @@ https://tuxpaint.org/
(Closes https://sourceforge.net/p/tuxpaint/feature-requests/199/)
Bill Kendrick <bill@newbreedsoftware.com>
* Play dialog popup animation at a consistent speed across platforms.
Also, fix the issue with animation not clearing after the final render.
Mark Kim <markuskimius@gmail.com>
* Bug Fixes:
----------
* Always creating 24-bit canvases, in an attempt to avoid blending

24
src/tuxpaint.c
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@ -15240,8 +15240,22 @@ static int do_prompt_image_flash_snd(const char *const text,
SDL_FillRect(backup, NULL, SDL_MapRGBA(backup->format, 255, 255, 255, 255));
SDL_BlitSurface(screen, NULL, backup, NULL);
for (w = 0; w <= r_ttools.w; w = w + 2)
/*
* This loop creates an animation effect of the dialog box popping up. To
* ensure the animation plays at the same speed regardless of the platform and
* resource available at the time, capture the rate at which each frame is
* being drawn and draw the next frame at the adaptive rate.
*/
{
Uint64 anim_ms = 300;
Uint64 last_ms = SDL_GetTicks64();
w = 0;
while(w <= r_ttools.w)
{
Uint64 next_ms = 0;
oox = ox - w;
ooy = oy - w;
@ -15259,10 +15273,12 @@ static int do_prompt_image_flash_snd(const char *const text,
SDL_UpdateRect(screen, dest.x, dest.y, dest.w, dest.h);
if ((w % 8) == 0)
SDL_Delay(1);
/* Calculate the amount by which to move to the next animation frame */
next_ms = SDL_GetTicks64();
w += (next_ms - last_ms) * r_ttools.w / anim_ms;
last_ms = next_ms;
}
if (w == r_ttools.w - 2)
SDL_BlitSurface(backup, NULL, screen, NULL);
}