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Merge branch 'gif-dynamic-delay-v2' into 'next'

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EMERGENCY: By default use the old gif_dynamicdelay v1 behavior, but keep v2 as an option.

See merge request STJr/SRB2!1236
This commit is contained in:
James R 2020-11-08 19:33:03 -05:00
commit 049237e50f
1 changed files with 20 additions and 4 deletions
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24
src/m_anigif.c
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@ -29,15 +29,21 @@
// GIFs are always little-endian
#include "byteptr.h"
CV_PossibleValue_t gif_dynamicdelay_cons_t[] = {
{0, "Off"},
{1, "On"},
{2, "Accurate, experimental"},
{0, NULL}};
consvar_t cv_gif_optimize = CVAR_INIT ("gif_optimize", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_gif_downscale = CVAR_INIT ("gif_downscale", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_gif_dynamicdelay = CVAR_INIT ("gif_dynamicdelay", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_gif_dynamicdelay = CVAR_INIT ("gif_dynamicdelay", "On", CV_SAVE, gif_dynamicdelay_cons_t, NULL);
consvar_t cv_gif_localcolortable = CVAR_INIT ("gif_localcolortable", "On", CV_SAVE, CV_OnOff, NULL);
#ifdef HAVE_ANIGIF
static boolean gif_optimize = false; // So nobody can do something dumb
static boolean gif_downscale = false; // like changing cvars mid output
static boolean gif_dynamicdelay = false; // and messing something up
static UINT8 gif_dynamicdelay = (UINT8)0; // and messing something up
// Palette handling
static boolean gif_localcolortable = false;
@ -598,7 +604,8 @@ static void GIF_framewrite(void)
UINT16 delay = 0;
INT32 startline;
if (gif_dynamicdelay) {
if (gif_dynamicdelay ==(UINT8) 2)
{
// golden's attempt at creating a "dynamic delay"
UINT16 mingifdelay = 10; // minimum gif delay in milliseconds (keep at 10 because gifs can't get more precise).
gif_delayus += (I_GetTimeMicros() - gif_prevframeus); // increase delay by how much time was spent between last measurement
@ -610,6 +617,15 @@ static void GIF_framewrite(void)
gif_delayus -= frames*(mingifdelay*1000); // remove frames by the amount of milliseconds they take. don't reset to 0, the microseconds help consistency.
}
}
else if (gif_dynamicdelay ==(UINT8) 1)
{
float delayf = ceil(100.0f/NEWTICRATE);
delay = (UINT16)((I_GetTimeMicros() - gif_prevframeus)/10/1000);
if (delay < (UINT16)(delayf))
delay = (UINT16)(delayf);
}
else
{
// the original code
@ -716,7 +732,7 @@ INT32 GIF_open(const char *filename)
gif_optimize = (!!cv_gif_optimize.value);
gif_downscale = (!!cv_gif_downscale.value);
gif_dynamicdelay = (!!cv_gif_dynamicdelay.value);
gif_dynamicdelay = (UINT8)cv_gif_dynamicdelay.value;
gif_localcolortable = (!!cv_gif_localcolortable.value);
gif_colorprofile = (!!cv_screenshot_colorprofile.value);
gif_headerpalette = GIF_getpalette(0);