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
af8d59d05d72f134aeea62712f1286b369807d52vboxsynccrServerDispatchReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
af8d59d05d72f134aeea62712f1286b369807d52vboxsync GLenum format, GLenum type, GLvoid *pixels)
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync{
febfe671adda070d044dced344f97b3971f2a660vboxsync CRMessageReadPixels *rp;
febfe671adda070d044dced344f97b3971f2a660vboxsync const GLint stride = READ_DATA( 24, GLint );
febfe671adda070d044dced344f97b3971f2a660vboxsync const GLint alignment = READ_DATA( 28, GLint );
febfe671adda070d044dced344f97b3971f2a660vboxsync const GLint skipRows = READ_DATA( 32, GLint );
febfe671adda070d044dced344f97b3971f2a660vboxsync const GLint skipPixels = READ_DATA( 36, GLint );
febfe671adda070d044dced344f97b3971f2a660vboxsync const GLint bytes_per_row = READ_DATA( 40, GLint );
febfe671adda070d044dced344f97b3971f2a660vboxsync const GLint rowLength = READ_DATA( 44, GLint );
febfe671adda070d044dced344f97b3971f2a660vboxsync const int msg_len = sizeof(*rp) + bytes_per_row * height;
febfe671adda070d044dced344f97b3971f2a660vboxsync
febfe671adda070d044dced344f97b3971f2a660vboxsync CRASSERT(bytes_per_row > 0);
febfe671adda070d044dced344f97b3971f2a660vboxsync
af8d59d05d72f134aeea62712f1286b369807d52vboxsync#ifdef CR_ARB_pixel_buffer_object
af8d59d05d72f134aeea62712f1286b369807d52vboxsync if (crStateIsBufferBound(GL_PIXEL_PACK_BUFFER_ARB))
af8d59d05d72f134aeea62712f1286b369807d52vboxsync {
af8d59d05d72f134aeea62712f1286b369807d52vboxsync GLvoid *pbo_offset;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync
ad27e1d5e48ca41245120c331cc88b50464813cevboxsync /*pixels are actually a pointer to location of 8byte network pointer in hgcm buffer
ad27e1d5e48ca41245120c331cc88b50464813cevboxsync regardless of guest/host bitness we're using only 4lower bytes as there're no
af8d59d05d72f134aeea62712f1286b369807d52vboxsync pbo>4gb (yet?)
af8d59d05d72f134aeea62712f1286b369807d52vboxsync */
e761514762c8705557b347266d54ade68888537cvboxsync pbo_offset = (GLvoid*) ((uintptr_t) *((GLint*)pixels));
af8d59d05d72f134aeea62712f1286b369807d52vboxsync
af8d59d05d72f134aeea62712f1286b369807d52vboxsync cr_server.head_spu->dispatch_table.ReadPixels(x, y, width, height,
af8d59d05d72f134aeea62712f1286b369807d52vboxsync format, type, pbo_offset);
af8d59d05d72f134aeea62712f1286b369807d52vboxsync }
af8d59d05d72f134aeea62712f1286b369807d52vboxsync else
af8d59d05d72f134aeea62712f1286b369807d52vboxsync#endif
af8d59d05d72f134aeea62712f1286b369807d52vboxsync {
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp = (CRMessageReadPixels *) crAlloc( msg_len );
af8d59d05d72f134aeea62712f1286b369807d52vboxsync
af8d59d05d72f134aeea62712f1286b369807d52vboxsync /* Note: the ReadPixels data gets densely packed into the buffer
af8d59d05d72f134aeea62712f1286b369807d52vboxsync * (no skip pixels, skip rows, etc. It's up to the receiver (pack spu,
af8d59d05d72f134aeea62712f1286b369807d52vboxsync * tilesort spu, etc) to apply the real PixelStore packing parameters.
af8d59d05d72f134aeea62712f1286b369807d52vboxsync */
af8d59d05d72f134aeea62712f1286b369807d52vboxsync cr_server.head_spu->dispatch_table.ReadPixels(x, y, width, height,
af8d59d05d72f134aeea62712f1286b369807d52vboxsync format, type, rp + 1);
af8d59d05d72f134aeea62712f1286b369807d52vboxsync
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->header.type = CR_MESSAGE_READ_PIXELS;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->width = width;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->height = height;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->bytes_per_row = bytes_per_row;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->stride = stride;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->format = format;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->type = type;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->alignment = alignment;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->skipRows = skipRows;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->skipPixels = skipPixels;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync rp->rowLength = rowLength;
af8d59d05d72f134aeea62712f1286b369807d52vboxsync
af8d59d05d72f134aeea62712f1286b369807d52vboxsync /* <pixels> points to the 8-byte network pointer */
af8d59d05d72f134aeea62712f1286b369807d52vboxsync crMemcpy( &rp->pixels, pixels, sizeof(rp->pixels) );
febfe671adda070d044dced344f97b3971f2a660vboxsync
af8d59d05d72f134aeea62712f1286b369807d52vboxsync crNetSend( cr_server.curClient->conn, NULL, rp, msg_len );
af8d59d05d72f134aeea62712f1286b369807d52vboxsync crFree( rp );
af8d59d05d72f134aeea62712f1286b369807d52vboxsync }
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync}