void BL_Texture::InitGLTex(unsigned int *pix,int x,int y,bool mipmap)
{
if (!GPU_non_power_of_two_support() && (!is_power_of_2_i(x) || !is_power_of_2_i(y)) ) {
InitNonPow2Tex(pix, x,y,mipmap);
return;
}
glBindTexture(GL_TEXTURE_2D, mTexture );
if ( mipmap ) {
int i;
ImBuf *ibuf;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
ibuf = IMB_allocFromBuffer(pix, NULL, x, y);
IMB_makemipmap(ibuf, true);
for (i = 0; i < ibuf->miptot; i++) {
ImBuf *mip = IMB_getmipmap(ibuf, i);
glTexImage2D(GL_TEXTURE_2D, i, GL_RGBA, mip->x, mip->y, 0, GL_RGBA, GL_UNSIGNED_BYTE, mip->rect);
}
IMB_freeImBuf(ibuf);
}
else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, pix );
}
if (GLEW_EXT_texture_filter_anisotropic)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, GPU_get_anisotropic());
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
void BL_Texture::InitNonPow2Tex(unsigned int *pix,int x,int y,bool mipmap)
{
int nx= power_of_2_min_i(x);
int ny= power_of_2_min_i(y);
ImBuf *ibuf = IMB_allocFromBuffer(pix, NULL, x, y);
IMB_scaleImBuf(ibuf, nx, ny);
glBindTexture(GL_TEXTURE_2D, mTexture );
if ( mipmap ) {
int i;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
IMB_makemipmap(ibuf, true);
for (i = 0; i < ibuf->miptot; i++) {
ImBuf *mip = IMB_getmipmap(ibuf, i);
glTexImage2D(GL_TEXTURE_2D, i, GL_RGBA, mip->x, mip->y, 0, GL_RGBA, GL_UNSIGNED_BYTE, mip->rect);
}
}
else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, nx, ny, 0, GL_RGBA, GL_UNSIGNED_BYTE, ibuf->rect );
}
if (GLEW_EXT_texture_filter_anisotropic)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, GPU_get_anisotropic());
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
IMB_freeImBuf(ibuf);
}
// load texture
void loadTexture(unsigned int texId, unsigned int *texture, short *size,
bool mipmap)
{
// load texture for rendering
glBindTexture(GL_TEXTURE_2D, texId);
if (mipmap)
{
int i;
ImBuf *ibuf;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
ibuf = IMB_allocFromBuffer(texture, NULL, size[0], size[1]);
IMB_makemipmap(ibuf, true);
for (i = 0; i < ibuf->miptot; i++) {
ImBuf *mip = IMB_getmipmap(ibuf, i);
glTexImage2D(GL_TEXTURE_2D, i, GL_RGBA, mip->x, mip->y, 0, GL_RGBA, GL_UNSIGNED_BYTE, mip->rect);
}
IMB_freeImBuf(ibuf);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, size[0], size[1], 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
}
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
void IMB_tiles_to_rect(ImBuf *ibuf)
{
ImBuf *mipbuf;
ImGlobalTile *gtile;
unsigned int *to, *from;
int a, tx, ty, y, w, h;
for(a=0; a<ibuf->miptot; a++) {
mipbuf= IMB_getmipmap(ibuf, a);
/* don't call imb_addrectImBuf, it frees all mipmaps */
if(!mipbuf->rect) {
if((mipbuf->rect = MEM_mapallocN(ibuf->x*ibuf->y*sizeof(unsigned int), "imb_addrectImBuf"))) {
mipbuf->mall |= IB_rect;
mipbuf->flags |= IB_rect;
}
else
break;
}
for(ty=0; ty<mipbuf->ytiles; ty++) {
for(tx=0; tx<mipbuf->xtiles; tx++) {
/* acquire tile through cache, this assumes cache is initialized,
which it is always now but it's a weak assumption ... */
gtile= imb_global_cache_get_tile(mipbuf, tx, ty, NULL);
/* setup pointers */
from= mipbuf->tiles[mipbuf->xtiles*ty + tx];
to= mipbuf->rect + mipbuf->x*ty*mipbuf->tiley + tx*mipbuf->tilex;
/* exception in tile width/height for tiles at end of image */
w= (tx == mipbuf->xtiles-1)? mipbuf->x - tx*mipbuf->tilex: mipbuf->tilex;
h= (ty == mipbuf->ytiles-1)? mipbuf->y - ty*mipbuf->tiley: mipbuf->tiley;
for(y=0; y<h; y++) {
memcpy(to, from, sizeof(unsigned int)*w);
from += mipbuf->tilex;
to += mipbuf->x;
}
/* decrease refcount for tile again */
BLI_mutex_lock(&GLOBAL_CACHE.mutex);
gtile->refcount--;
BLI_mutex_unlock(&GLOBAL_CACHE.mutex);
}
}
}
}
