530 lines
19 KiB
C
530 lines
19 KiB
C
/*
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* DIB driver initialization and DC functions.
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*
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* Copyright 2011 Huw Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include "gdi_private.h"
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#include "dibdrv.h"
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#include "wine/exception.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dib);
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static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff};
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static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f};
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static void calc_shift_and_len(DWORD mask, int *shift, int *len)
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{
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int s, l;
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if(!mask)
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{
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*shift = *len = 0;
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return;
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}
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s = 0;
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while ((mask & 1) == 0)
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{
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mask >>= 1;
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s++;
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}
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l = 0;
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while ((mask & 1) == 1)
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{
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mask >>= 1;
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l++;
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}
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*shift = s;
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*len = l;
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}
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static void init_bit_fields(dib_info *dib, const DWORD *bit_fields)
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{
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dib->red_mask = bit_fields[0];
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dib->green_mask = bit_fields[1];
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dib->blue_mask = bit_fields[2];
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calc_shift_and_len(dib->red_mask, &dib->red_shift, &dib->red_len);
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calc_shift_and_len(dib->green_mask, &dib->green_shift, &dib->green_len);
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calc_shift_and_len(dib->blue_mask, &dib->blue_shift, &dib->blue_len);
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}
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static void init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields,
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const RGBQUAD *color_table, void *bits)
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{
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dib->bit_count = bi->biBitCount;
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dib->width = bi->biWidth;
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dib->height = bi->biHeight;
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dib->rect.left = 0;
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dib->rect.top = 0;
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dib->rect.right = bi->biWidth;
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dib->rect.bottom = abs( bi->biHeight );
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dib->compression = bi->biCompression;
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dib->stride = get_dib_stride( dib->width, dib->bit_count );
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dib->bits.ptr = bits;
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dib->bits.is_copy = FALSE;
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dib->bits.free = NULL;
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dib->bits.param = NULL;
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if(dib->height < 0) /* top-down */
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{
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dib->height = -dib->height;
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}
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else /* bottom-up */
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{
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/* bits always points to the top-left corner and the stride is -ve */
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dib->bits.ptr = (BYTE*)dib->bits.ptr + (dib->height - 1) * dib->stride;
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dib->stride = -dib->stride;
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}
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dib->funcs = &funcs_null;
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switch(dib->bit_count)
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{
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case 32:
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if(bi->biCompression == BI_RGB)
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bit_fields = bit_fields_888;
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init_bit_fields(dib, bit_fields);
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if(dib->red_mask == 0xff0000 && dib->green_mask == 0x00ff00 && dib->blue_mask == 0x0000ff)
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dib->funcs = &funcs_8888;
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else
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dib->funcs = &funcs_32;
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break;
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case 24:
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dib->funcs = &funcs_24;
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break;
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case 16:
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if(bi->biCompression == BI_RGB)
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bit_fields = bit_fields_555;
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init_bit_fields(dib, bit_fields);
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if(dib->red_mask == 0x7c00 && dib->green_mask == 0x03e0 && dib->blue_mask == 0x001f)
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dib->funcs = &funcs_555;
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else
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dib->funcs = &funcs_16;
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break;
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case 8:
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dib->funcs = &funcs_8;
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break;
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case 4:
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dib->funcs = &funcs_4;
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break;
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case 1:
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dib->funcs = &funcs_1;
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break;
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}
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if (color_table && bi->biClrUsed)
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{
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dib->color_table = color_table;
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dib->color_table_size = bi->biClrUsed;
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}
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else
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{
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dib->color_table = NULL;
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dib->color_table_size = 0;
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}
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}
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void init_dib_info_from_bitmapinfo(dib_info *dib, const BITMAPINFO *info, void *bits)
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{
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init_dib_info( dib, &info->bmiHeader, (const DWORD *)info->bmiColors, info->bmiColors, bits );
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}
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BOOL init_dib_info_from_bitmapobj(dib_info *dib, BITMAPOBJ *bmp)
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{
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if (!is_bitmapobj_dib( bmp ))
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{
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BITMAPINFO info;
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get_ddb_bitmapinfo( bmp, &info );
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if (!bmp->dib.dsBm.bmBits)
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{
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int width_bytes = get_dib_stride( bmp->dib.dsBm.bmWidth, bmp->dib.dsBm.bmBitsPixel );
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bmp->dib.dsBm.bmBits = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
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bmp->dib.dsBm.bmHeight * width_bytes );
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if (!bmp->dib.dsBm.bmBits) return FALSE;
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}
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init_dib_info_from_bitmapinfo( dib, &info, bmp->dib.dsBm.bmBits );
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}
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else init_dib_info( dib, &bmp->dib.dsBmih, bmp->dib.dsBitfields,
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bmp->color_table, bmp->dib.dsBm.bmBits );
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return TRUE;
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}
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static void clear_dib_info(dib_info *dib)
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{
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dib->bits.ptr = NULL;
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dib->bits.free = NULL;
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dib->bits.param = NULL;
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}
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/**********************************************************************
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* free_dib_info
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*
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* Free the resources associated with a dib and optionally the bits
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*/
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void free_dib_info(dib_info *dib)
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{
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if (dib->bits.free) dib->bits.free( &dib->bits );
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clear_dib_info( dib );
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}
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void copy_dib_color_info(dib_info *dst, const dib_info *src)
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{
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dst->bit_count = src->bit_count;
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dst->red_mask = src->red_mask;
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dst->green_mask = src->green_mask;
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dst->blue_mask = src->blue_mask;
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dst->red_len = src->red_len;
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dst->green_len = src->green_len;
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dst->blue_len = src->blue_len;
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dst->red_shift = src->red_shift;
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dst->green_shift = src->green_shift;
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dst->blue_shift = src->blue_shift;
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dst->funcs = src->funcs;
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dst->color_table_size = src->color_table_size;
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dst->color_table = src->color_table;
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}
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DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
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const BITMAPINFO *dst_info, void *dst_bits, BOOL add_alpha )
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{
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dib_info src_dib, dst_dib;
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DWORD ret;
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init_dib_info_from_bitmapinfo( &src_dib, src_info, src_bits );
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init_dib_info_from_bitmapinfo( &dst_dib, dst_info, dst_bits );
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__TRY
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{
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dst_dib.funcs->convert_to( &dst_dib, &src_dib, &src->visrect, FALSE );
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ret = TRUE;
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}
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__EXCEPT_PAGE_FAULT
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{
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WARN( "invalid bits pointer %p\n", src_bits );
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ret = FALSE;
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}
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__ENDTRY
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/* We shared the color tables, so there's no need to free the dib_infos here */
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if(!ret) return ERROR_BAD_FORMAT;
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/* update coordinates, the destination rectangle is always stored at 0,0 */
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src->x -= src->visrect.left;
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src->y -= src->visrect.top;
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offset_rect( &src->visrect, -src->visrect.left, -src->visrect.top );
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if (add_alpha && dst_dib.funcs == &funcs_8888 && src_dib.funcs != &funcs_8888)
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{
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DWORD *pixel = dst_dib.bits.ptr;
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int x, y;
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for (y = src->visrect.top; y < src->visrect.bottom; y++, pixel += dst_dib.stride / 4)
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for (x = src->visrect.left; x < src->visrect.right; x++)
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pixel[x] |= 0xff000000;
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}
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return ERROR_SUCCESS;
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}
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int get_clipped_rects( const dib_info *dib, const RECT *rc, HRGN clip, struct clipped_rects *clip_rects )
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{
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const WINEREGION *region;
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RECT rect, *out = clip_rects->buffer;
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int i;
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init_clipped_rects( clip_rects );
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rect.left = max( 0, -dib->rect.left );
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rect.top = max( 0, -dib->rect.top );
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rect.right = min( dib->rect.right, dib->width ) - dib->rect.left;
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rect.bottom = min( dib->rect.bottom, dib->height ) - dib->rect.top;
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if (is_rect_empty( &rect )) return 0;
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if (rc && !intersect_rect( &rect, &rect, rc )) return 0;
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if (!clip)
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{
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*out = rect;
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clip_rects->count = 1;
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return 1;
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}
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if (!(region = get_wine_region( clip ))) return 0;
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for (i = 0; i < region->numRects; i++)
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{
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if (region->rects[i].top >= rect.bottom) break;
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if (!intersect_rect( out, &rect, ®ion->rects[i] )) continue;
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out++;
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if (out == &clip_rects->buffer[sizeof(clip_rects->buffer) / sizeof(RECT)])
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{
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clip_rects->rects = HeapAlloc( GetProcessHeap(), 0, region->numRects * sizeof(RECT) );
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if (!clip_rects->rects) return 0;
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memcpy( clip_rects->rects, clip_rects->buffer, (out - clip_rects->buffer) * sizeof(RECT) );
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out = clip_rects->rects + (out - clip_rects->buffer);
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}
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}
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release_wine_region( clip );
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clip_rects->count = out - clip_rects->rects;
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return clip_rects->count;
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}
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void add_clipped_bounds( dibdrv_physdev *dev, const RECT *rect, HRGN clip )
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{
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const WINEREGION *region;
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RECT rc;
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if (!dev->bounds) return;
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if (clip)
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{
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if (!(region = get_wine_region( clip ))) return;
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if (!rect) rc = region->extents;
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else intersect_rect( &rc, rect, ®ion->extents );
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release_wine_region( clip );
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}
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else rc = *rect;
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if (is_rect_empty( &rc )) return;
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offset_rect( &rc, dev->dib.rect.left, dev->dib.rect.top );
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add_bounds_rect( dev->bounds, &rc );
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}
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/**********************************************************************
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* dibdrv_CreateDC
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*/
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static BOOL dibdrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
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LPCWSTR output, const DEVMODEW *data )
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{
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dibdrv_physdev *pdev = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pdev) );
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if (!pdev) return FALSE;
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clear_dib_info(&pdev->dib);
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clear_dib_info(&pdev->brush.dib);
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clear_dib_info(&pdev->pen_brush.dib);
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push_dc_driver( dev, &pdev->dev, &dib_driver );
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return TRUE;
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}
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/***********************************************************************
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* dibdrv_DeleteDC
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*/
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static BOOL dibdrv_DeleteDC( PHYSDEV dev )
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{
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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TRACE("(%p)\n", dev);
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free_pattern_brush( &pdev->brush );
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free_pattern_brush( &pdev->pen_brush );
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HeapFree( GetProcessHeap(), 0, pdev );
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return TRUE;
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}
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/***********************************************************************
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* dibdrv_SelectBitmap
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*/
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static HBITMAP dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
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{
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
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dib_info dib;
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TRACE("(%p, %p)\n", dev, bitmap);
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if (!bmp) return 0;
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if (!init_dib_info_from_bitmapobj(&dib, bmp))
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{
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GDI_ReleaseObj( bitmap );
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return 0;
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}
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pdev->dib = dib;
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GDI_ReleaseObj( bitmap );
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return bitmap;
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}
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/***********************************************************************
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* dibdrv_SetDeviceClipping
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*/
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static void dibdrv_SetDeviceClipping( PHYSDEV dev, HRGN rgn )
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{
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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TRACE("(%p, %p)\n", dev, rgn);
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pdev->clip = rgn;
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}
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/***********************************************************************
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* dibdrv_SetBoundsRect
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*/
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static UINT dibdrv_SetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
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{
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dibdrv_physdev *pdev = get_dibdrv_pdev( dev );
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if (flags & DCB_DISABLE) pdev->bounds = NULL;
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else if (flags & DCB_ENABLE) pdev->bounds = rect;
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return DCB_RESET; /* we don't have device-specific bounds */
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}
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const struct gdi_dc_funcs dib_driver =
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{
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NULL, /* pAbortDoc */
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NULL, /* pAbortPath */
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dibdrv_AlphaBlend, /* pAlphaBlend */
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NULL, /* pAngleArc */
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dibdrv_Arc, /* pArc */
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dibdrv_ArcTo, /* pArcTo */
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NULL, /* pBeginPath */
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dibdrv_BlendImage, /* pBlendImage */
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dibdrv_Chord, /* pChord */
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NULL, /* pCloseFigure */
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NULL, /* pCreateCompatibleDC */
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dibdrv_CreateDC, /* pCreateDC */
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dibdrv_DeleteDC, /* pDeleteDC */
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NULL, /* pDeleteObject */
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NULL, /* pDescribePixelFormat */
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NULL, /* pDeviceCapabilities */
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dibdrv_Ellipse, /* pEllipse */
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NULL, /* pEndDoc */
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NULL, /* pEndPage */
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NULL, /* pEndPath */
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NULL, /* pEnumFonts */
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NULL, /* pEnumICMProfiles */
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NULL, /* pExcludeClipRect */
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NULL, /* pExtDeviceMode */
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NULL, /* pExtEscape */
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dibdrv_ExtFloodFill, /* pExtFloodFill */
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NULL, /* pExtSelectClipRgn */
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dibdrv_ExtTextOut, /* pExtTextOut */
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NULL, /* pFillPath */
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NULL, /* pFillRgn */
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NULL, /* pFlattenPath */
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NULL, /* pFontIsLinked */
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NULL, /* pFrameRgn */
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NULL, /* pGdiComment */
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NULL, /* pGdiRealizationInfo */
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NULL, /* pGetBoundsRect */
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NULL, /* pGetCharABCWidths */
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NULL, /* pGetCharABCWidthsI */
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NULL, /* pGetCharWidth */
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NULL, /* pGetDeviceCaps */
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NULL, /* pGetDeviceGammaRamp */
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NULL, /* pGetFontData */
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NULL, /* pGetFontUnicodeRanges */
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NULL, /* pGetGlyphIndices */
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NULL, /* pGetGlyphOutline */
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NULL, /* pGetICMProfile */
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dibdrv_GetImage, /* pGetImage */
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NULL, /* pGetKerningPairs */
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dibdrv_GetNearestColor, /* pGetNearestColor */
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NULL, /* pGetOutlineTextMetrics */
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dibdrv_GetPixel, /* pGetPixel */
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NULL, /* pGetSystemPaletteEntries */
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NULL, /* pGetTextCharsetInfo */
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NULL, /* pGetTextExtentExPoint */
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NULL, /* pGetTextExtentExPointI */
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NULL, /* pGetTextFace */
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NULL, /* pGetTextMetrics */
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dibdrv_GradientFill, /* pGradientFill */
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NULL, /* pIntersectClipRect */
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NULL, /* pInvertRgn */
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dibdrv_LineTo, /* pLineTo */
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NULL, /* pModifyWorldTransform */
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NULL, /* pMoveTo */
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NULL, /* pOffsetClipRgn */
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NULL, /* pOffsetViewportOrg */
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NULL, /* pOffsetWindowOrg */
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dibdrv_PaintRgn, /* pPaintRgn */
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dibdrv_PatBlt, /* pPatBlt */
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dibdrv_Pie, /* pPie */
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NULL, /* pPolyBezier */
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NULL, /* pPolyBezierTo */
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NULL, /* pPolyDraw */
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dibdrv_PolyPolygon, /* pPolyPolygon */
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dibdrv_PolyPolyline, /* pPolyPolyline */
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dibdrv_Polygon, /* pPolygon */
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dibdrv_Polyline, /* pPolyline */
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NULL, /* pPolylineTo */
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dibdrv_PutImage, /* pPutImage */
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NULL, /* pRealizeDefaultPalette */
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NULL, /* pRealizePalette */
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dibdrv_Rectangle, /* pRectangle */
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NULL, /* pResetDC */
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NULL, /* pRestoreDC */
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dibdrv_RoundRect, /* pRoundRect */
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NULL, /* pSaveDC */
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NULL, /* pScaleViewportExt */
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NULL, /* pScaleWindowExt */
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dibdrv_SelectBitmap, /* pSelectBitmap */
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dibdrv_SelectBrush, /* pSelectBrush */
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NULL, /* pSelectClipPath */
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NULL, /* pSelectFont */
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NULL, /* pSelectPalette */
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dibdrv_SelectPen, /* pSelectPen */
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NULL, /* pSetArcDirection */
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NULL, /* pSetBkColor */
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NULL, /* pSetBkMode */
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dibdrv_SetBoundsRect, /* pSetBoundsRect */
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dibdrv_SetDCBrushColor, /* pSetDCBrushColor */
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dibdrv_SetDCPenColor, /* pSetDCPenColor */
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NULL, /* pSetDIBitsToDevice */
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dibdrv_SetDeviceClipping, /* pSetDeviceClipping */
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NULL, /* pSetDeviceGammaRamp */
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NULL, /* pSetLayout */
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NULL, /* pSetMapMode */
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|
NULL, /* pSetMapperFlags */
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|
dibdrv_SetPixel, /* pSetPixel */
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NULL, /* pSetPixelFormat */
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|
NULL, /* pSetPolyFillMode */
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|
NULL, /* pSetROP2 */
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|
NULL, /* pSetRelAbs */
|
|
NULL, /* pSetStretchBltMode */
|
|
NULL, /* pSetTextAlign */
|
|
NULL, /* pSetTextCharacterExtra */
|
|
NULL, /* pSetTextColor */
|
|
NULL, /* pSetTextJustification */
|
|
NULL, /* pSetViewportExt */
|
|
NULL, /* pSetViewportOrg */
|
|
NULL, /* pSetWindowExt */
|
|
NULL, /* pSetWindowOrg */
|
|
NULL, /* pSetWorldTransform */
|
|
NULL, /* pStartDoc */
|
|
NULL, /* pStartPage */
|
|
dibdrv_StretchBlt, /* pStretchBlt */
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|
NULL, /* pStretchDIBits */
|
|
NULL, /* pStrokeAndFillPath */
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|
NULL, /* pStrokePath */
|
|
NULL, /* pSwapBuffers */
|
|
NULL, /* pUnrealizePalette */
|
|
NULL, /* pWidenPath */
|
|
NULL, /* wine_get_wgl_driver */
|
|
GDI_PRIORITY_DIB_DRV /* priority */
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|
};
|