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xash3d-fwgs
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ref: gl: upload only part of texture we're using, i.e. 64x64 for 64x64, 128x128 for 128x128

This commit is contained in:
Alibek Omarov 2023-10-31 04:24:46 +03:00
parent 03f838e37e
commit a6c67fdf9f
1 changed files with 28 additions and 25 deletions
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53
ref/gl/gl_warp.c
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@ -909,21 +909,19 @@ static void R_SpawnNewRipple( int x, int y, short val )
static void R_RunRipplesAnimation( const short *oldbuf, short *pbuf )
{
unsigned int i = 0;
size_t i = 0;
const int w = RIPPLES_CACHEWIDTH;
const int m = RIPPLES_TEXSIZE_MASK;
for( i = 0; i < RIPPLES_TEXSIZE; i++, pbuf++ )
for( i = w; i < m + w; i++, pbuf++ )
{
int p = RIPPLES_CACHEWIDTH + i;
int val;
*pbuf = (
( (int)oldbuf[( i - ( w * 2 )) & m]
+ (int)oldbuf[( i - ( w + 1 )) & m]
+ (int)oldbuf[( i - ( w - 1 )) & m]
+ (int)oldbuf[( i ) & m]) >> 1 ) - (int)*pbuf;
val = ((int)oldbuf[(p - ( RIPPLES_CACHEWIDTH * 2 )) & RIPPLES_TEXSIZE_MASK]
+ (int)oldbuf[(p - ( RIPPLES_CACHEWIDTH + 1 )) & RIPPLES_TEXSIZE_MASK]
+ (int)oldbuf[(p - ( RIPPLES_CACHEWIDTH - 1 )) & RIPPLES_TEXSIZE_MASK]
+ (int)oldbuf[p & RIPPLES_TEXSIZE_MASK]) >> 1;
val -= *pbuf;
*pbuf = (short)val - (short)( val >> 6 );
*pbuf -= ( *pbuf >> 6 );
}
}
@ -989,7 +987,7 @@ void R_UploadRipples( texture_t *image )
{
gl_texture_t *glt;
uint32_t *pixels;
int v, wmask, hmask;
int wbits, wmask, wshft;
// discard unuseful textures
if( !r_ripple.value || image->width > RIPPLES_CACHEWIDTH || image->width != image->height )
@ -1012,25 +1010,30 @@ void R_UploadRipples( texture_t *image )
return;
g_ripple.gl_texturenum = image->gl_texturenum;
// TODO: original sw.dll always draws at 64x64
g_ripple.texturescale = Q_max( 2, RIPPLES_CACHEWIDTH / image->width );
g_ripple.texturescale = Q_max( 1, image->width / 64 );
pixels = (uint32_t *)glt->original->buffer;
v = MostSignificantBit( image->width );
wbits = MostSignificantBit( image->width );
wshft = 7 - wbits;
wmask = image->width - 1;
hmask = image->height - 1;
for( int i = 0; i < RIPPLES_TEXSIZE; i++ )
for( int y = 0; y < image->height; y++ )
{
int val = g_ripple.curbuf[i];
int x = ( val >> 4 ) + i;
int y = ( i >> 7 ) - ( val >> 4 );
int pixel = ( x & wmask ) + (( y & hmask ) << ( v & 0x1f )); // ???
int ry = y << ( 7 + wshft );
g_ripple.texture[i] = pixels[pixel];
for( int x = 0; x < image->width; x++ )
{
int rx = x << wshft;
int val = g_ripple.curbuf[ry + rx] >> 4;
int py = (y - val) & wmask;
int px = (x + val) & wmask;
int p = ( py << wbits ) + px;
g_ripple.texture[(y << wbits) + x] = pixels[p];
}
}
pglTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, RIPPLES_CACHEWIDTH, RIPPLES_CACHEWIDTH, 0,
pglTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, image->width, image->width, 0,
GL_RGBA, GL_UNSIGNED_BYTE, g_ripple.texture );
}