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ref: gl: fix massive frame drop caused by ripples code rendering same texture multiple times in the frame

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This commit is contained in:
Alibek Omarov 2025-01-29 20:15:07 +03:00
parent feb80e5997
commit faf0b32a94
1 changed files with 32 additions and 9 deletions
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41
ref/gl/gl_warp.c
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@ -720,12 +720,32 @@ void R_AnimateRipples( void )
R_RunRipplesAnimation( g_ripple.oldbuf, g_ripple.curbuf );
}
static void R_GetRippleTextureSize( const texture_t *image, int *width, int *height )
{
// try to preserve aspect ratio
if( image->width > image->height )
{
*width = RIPPLES_CACHEWIDTH;
*height = (float)image->height / image->width * RIPPLES_CACHEWIDTH;
}
else if( image->width < image->height )
{
*width = (float)image->width / image->height * RIPPLES_CACHEWIDTH;
*height = RIPPLES_CACHEWIDTH;
}
else
{
*width = *height = RIPPLES_CACHEWIDTH;
}
}
qboolean R_UploadRipples( texture_t *image )
{
const gl_texture_t *glt;
const uint32_t *pixels;
int y;
int width, height, size;
qboolean update = g_ripple.update;
if( !r_ripple.value )
{
@ -735,24 +755,19 @@ qboolean R_UploadRipples( texture_t *image )
// discard unuseful textures
glt = R_GetTexture( image->gl_texturenum );
if( !glt || !glt->original || !glt->original->buffer || !FBitSet( glt->flags, TF_EXPAND_SOURCE ))
if( !glt || !glt->original || !glt->original->buffer )
{
GL_Bind( XASH_TEXTURE0, image->gl_texturenum );
return false;
}
// try to preserve aspect ratio
width = height = RIPPLES_CACHEWIDTH; // always render at maximum size
if( image->width > image->height )
height = (float)image->height / image->width * width;
else if( image->width < image->height )
width = (float)image->width / image->height * height;
if( !image->fb_texturenum )
{
rgbdata_t pic = { 0 };
string name;
Q_snprintf( name, sizeof( name ), "*rippletex_%s", image->name );
R_GetRippleTextureSize( image, &width, &height );
pic.width = width;
pic.height = height;
@ -765,14 +780,22 @@ qboolean R_UploadRipples( texture_t *image )
memset( pic.buffer, 0, pic.size );
image->fb_texturenum = GL_LoadTextureInternal( name, &pic, TF_NOMIPMAP | TF_ALLOW_NEAREST );
update = true;
image->dt_texturenum = ( tr.framecount - 1 ) & 0xFFFF;
}
GL_Bind( XASH_TEXTURE0, image->fb_texturenum );
// no updates this frame
if( !g_ripple.update )
if( !update || image->dt_texturenum == ( tr.framecount & 0xFFFF ))
return true;
// prevent rendering texture multiple times in frame
image->dt_texturenum = tr.framecount & 0xFFFF;
R_GetRippleTextureSize( image, &width, &height );
size = r_ripple.value == 1.0f ? 64 : RIPPLES_CACHEWIDTH;
pixels = (const uint32_t *)glt->original->buffer;