void CrHlpPutTexImage(CRContext *pCurCtx, PVBOXVR_TEXTURE pTexture, GLenum enmFormat, void *pvData)
{
CRASSERT(pTexture->hwid);
cr_server.head_spu->dispatch_table.BindTexture(pTexture->target, pTexture->hwid);
if (!pCurCtx || crStateIsBufferBoundForCtx(pCurCtx, GL_PIXEL_UNPACK_BUFFER_ARB))
{
cr_server.head_spu->dispatch_table.BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
}
/*read the texture, note pixels are NULL for PBO case as it's offset in the buffer*/
cr_server.head_spu->dispatch_table.TexSubImage2D(GL_TEXTURE_2D, 0 /* level*/, 0 /*xoffset*/, 0 /*yoffset*/, pTexture->width, pTexture->height, enmFormat, GL_UNSIGNED_BYTE, pvData);
/*restore gl state*/
if (pCurCtx)
{
CRTextureObj *pTObj;
CRTextureLevel *pTImg;
crStateGetTextureObjectAndImage(pCurCtx, pTexture->target, 0, &pTObj, &pTImg);
GLuint uid = pTObj->hwid;
CRASSERT(uid);
cr_server.head_spu->dispatch_table.BindTexture(pTexture->target, uid);
}
else
{
cr_server.head_spu->dispatch_table.BindTexture(pTexture->target, 0);
}
if (pCurCtx && crStateIsBufferBoundForCtx(pCurCtx, GL_PIXEL_UNPACK_BUFFER_ARB))
cr_server.head_spu->dispatch_table.BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pCurCtx->bufferobject.unpackBuffer->hwid);
}
void* CrHlpGetTexImage(CRContext *pCurCtx, PVBOXVR_TEXTURE pTexture, GLuint idPBO, GLenum enmFormat)
{
void *pvData = NULL;
cr_server.head_spu->dispatch_table.BindTexture(pTexture->target, pTexture->hwid);
if (idPBO)
{
cr_server.head_spu->dispatch_table.BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, idPBO);
}
else
{
if (!pCurCtx || crStateIsBufferBoundForCtx(pCurCtx, GL_PIXEL_PACK_BUFFER_ARB))
{
cr_server.head_spu->dispatch_table.BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, 0);
}
pvData = crAlloc(4*pTexture->width*pTexture->height);
if (!pvData)
{
crWarning("Out of memory in CrHlpGetTexImage");
return NULL;
}
}
/*read the texture, note pixels are NULL for PBO case as it's offset in the buffer*/
cr_server.head_spu->dispatch_table.GetTexImage(GL_TEXTURE_2D, 0, enmFormat, GL_UNSIGNED_BYTE, pvData);
/*restore gl state*/
if (pCurCtx)
{
CRTextureObj *pTObj;
CRTextureLevel *pTImg;
crStateGetTextureObjectAndImage(pCurCtx, pTexture->target, 0, &pTObj, &pTImg);
GLuint uid = pTObj->hwid;
CRASSERT(uid);
cr_server.head_spu->dispatch_table.BindTexture(pTexture->target, uid);
}
else
{
cr_server.head_spu->dispatch_table.BindTexture(pTexture->target, 0);
}
if (idPBO)
{
pvData = cr_server.head_spu->dispatch_table.MapBufferARB(GL_PIXEL_PACK_BUFFER_ARB, GL_READ_ONLY);
if (!pvData)
{
crWarning("Failed to MapBuffer in CrHlpGetTexImage");
return NULL;
}
}
CRASSERT(pvData);
return pvData;
}
void CrHlpFreeTexImage(CRContext *pCurCtx, GLuint idPBO, void *pvData)
{
if (idPBO)
{
cr_server.head_spu->dispatch_table.UnmapBufferARB(GL_PIXEL_PACK_BUFFER_ARB);
if (pCurCtx)
cr_server.head_spu->dispatch_table.BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, pCurCtx->bufferobject.packBuffer->hwid);
else
cr_server.head_spu->dispatch_table.BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, 0);
}
else
{
crFree(pvData);
if (pCurCtx && crStateIsBufferBoundForCtx(pCurCtx, GL_PIXEL_PACK_BUFFER_ARB))
cr_server.head_spu->dispatch_table.BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, pCurCtx->bufferobject.packBuffer->hwid);
}
}
GLboolean crStateIsBufferBound(GLenum target)
{
CRContext *g = GetCurrentContext();
return crStateIsBufferBoundForCtx(g, target);
}
