server_readpixels.c revision e0e0c19eefceaf5d4ec40f9466b58a771f50e799
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync/* Copyright (c) 2001, Stanford University
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync * All rights reserved
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync *
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync * See the file LICENSE.txt for information on redistributing this software.
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync */
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "cr_spu.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "chromium.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "cr_error.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "cr_mem.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "cr_net.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "cr_pixeldata.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "cr_unpack.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "server_dispatch.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "server.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsyncvoid SERVER_DISPATCH_APIENTRY
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsynccrServerDispatchReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync GLenum format, GLenum type, GLvoid *pixels)
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync{
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync CRMessageReadPixels *rp;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync const GLint stride = READ_DATA( 24, GLint );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync const GLint alignment = READ_DATA( 28, GLint );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync const GLint skipRows = READ_DATA( 32, GLint );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync const GLint skipPixels = READ_DATA( 36, GLint );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync const GLint bytes_per_row = READ_DATA( 40, GLint );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync const GLint rowLength = READ_DATA( 44, GLint );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync const int msg_len = sizeof(*rp) + bytes_per_row * height;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync CRASSERT(bytes_per_row > 0);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp = (CRMessageReadPixels *) crAlloc( msg_len );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync /* Note: the ReadPixels data gets densely packed into the buffer
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync * (no skip pixels, skip rows, etc. It's up to the receiver (pack spu,
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync * tilesort spu, etc) to apply the real PixelStore packing parameters.
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync */
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync cr_server.head_spu->dispatch_table.ReadPixels( x, y, width, height,
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync format, type, rp + 1);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->header.type = CR_MESSAGE_READ_PIXELS;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->width = width;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->height = height;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->bytes_per_row = bytes_per_row;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->stride = stride;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->format = format;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->type = type;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->alignment = alignment;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->skipRows = skipRows;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->skipPixels = skipPixels;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync rp->rowLength = rowLength;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync /* <pixels> points to the 8-byte network pointer */
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync crMemcpy( &rp->pixels, pixels, sizeof(rp->pixels) );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync crNetSend( cr_server.curClient->conn, NULL, rp, msg_len );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync crFree( rp );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync}