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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2009-2015 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include "common/log.h"
#include "common/draw.h"
#include "spice_bitmap_utils.h"
int spice_bitmap_from_surface_type(uint32_t surface_format)
{
switch (surface_format) {
case SPICE_SURFACE_FMT_16_555:
return SPICE_BITMAP_FMT_16BIT;
case SPICE_SURFACE_FMT_32_xRGB:
return SPICE_BITMAP_FMT_32BIT;
case SPICE_SURFACE_FMT_32_ARGB:
return SPICE_BITMAP_FMT_RGBA;
case SPICE_SURFACE_FMT_8_A:
return SPICE_BITMAP_FMT_8BIT_A;
default:
spice_critical("Unsupported surface format");
}
return 0;
}
#define RAM_PATH "/tmp/tmpfs"
static void dump_palette(FILE *f, SpicePalette* plt)
{
int i;
for (i = 0; i < plt->num_ents; i++) {
fwrite(plt->ents + i, sizeof(uint32_t), 1, f);
}
}
static void dump_line(FILE *f, uint8_t* line, uint16_t n_pixel_bits, int width, int row_size)
{
int i;
int copy_bytes_size = SPICE_ALIGN(n_pixel_bits * width, 8) / 8;
fwrite(line, 1, copy_bytes_size, f);
if (row_size > copy_bytes_size) {
// each line should be 4 bytes aligned
for (i = copy_bytes_size; i < row_size; i++) {
fprintf(f, "%c", 0);
}
}
}
void dump_bitmap(SpiceBitmap *bitmap)
{
static uint32_t file_id = 0;
char file_str[200];
int rgb = TRUE;
uint16_t n_pixel_bits;
SpicePalette *plt = NULL;
uint32_t id;
int row_size;
uint32_t file_size;
int alpha = 0;
uint32_t header_size = 14 + 40;
uint32_t bitmap_data_offset;
uint32_t tmp_u32;
int32_t tmp_32;
uint16_t tmp_u16;
FILE *f;
int i, j;
switch (bitmap->format) {
case SPICE_BITMAP_FMT_1BIT_BE:
case SPICE_BITMAP_FMT_1BIT_LE:
rgb = FALSE;
n_pixel_bits = 1;
break;
case SPICE_BITMAP_FMT_4BIT_BE:
case SPICE_BITMAP_FMT_4BIT_LE:
rgb = FALSE;
n_pixel_bits = 4;
break;
case SPICE_BITMAP_FMT_8BIT:
rgb = FALSE;
n_pixel_bits = 8;
break;
case SPICE_BITMAP_FMT_16BIT:
n_pixel_bits = 16;
break;
case SPICE_BITMAP_FMT_24BIT:
n_pixel_bits = 24;
break;
case SPICE_BITMAP_FMT_32BIT:
n_pixel_bits = 32;
break;
case SPICE_BITMAP_FMT_RGBA:
n_pixel_bits = 32;
alpha = 1;
break;
default:
spice_error("invalid bitmap format %u", bitmap->format);
return;
}
if (!rgb) {
if (!bitmap->palette) {
return; // dont dump masks.
}
plt = bitmap->palette;
}
row_size = (((bitmap->x * n_pixel_bits) + 31) / 32) * 4;
bitmap_data_offset = header_size;
if (plt) {
bitmap_data_offset += plt->num_ents * 4;
}
file_size = bitmap_data_offset + (bitmap->y * row_size);
id = ++file_id;
sprintf(file_str, "%s/%u.bmp", RAM_PATH, id);
f = fopen(file_str, "wb");
if (!f) {
spice_error("Error creating bmp");
return;
}
/* writing the bmp v3 header */
fprintf(f, "BM");
fwrite(&file_size, sizeof(file_size), 1, f);
tmp_u16 = alpha ? 1 : 0;
fwrite(&tmp_u16, sizeof(tmp_u16), 1, f); // reserved for application
tmp_u16 = 0;
fwrite(&tmp_u16, sizeof(tmp_u16), 1, f);
fwrite(&bitmap_data_offset, sizeof(bitmap_data_offset), 1, f);
tmp_u32 = header_size - 14;
fwrite(&tmp_u32, sizeof(tmp_u32), 1, f); // sub header size
tmp_32 = bitmap->x;
fwrite(&tmp_32, sizeof(tmp_32), 1, f);
tmp_32 = bitmap->y;
fwrite(&tmp_32, sizeof(tmp_32), 1, f);
tmp_u16 = 1;
fwrite(&tmp_u16, sizeof(tmp_u16), 1, f); // color plane
fwrite(&n_pixel_bits, sizeof(n_pixel_bits), 1, f); // pixel depth
tmp_u32 = 0;
fwrite(&tmp_u32, sizeof(tmp_u32), 1, f); // compression method
tmp_u32 = 0; //file_size - bitmap_data_offset;
fwrite(&tmp_u32, sizeof(tmp_u32), 1, f); // image size
tmp_32 = 0;
fwrite(&tmp_32, sizeof(tmp_32), 1, f);
fwrite(&tmp_32, sizeof(tmp_32), 1, f);
tmp_u32 = (!plt) ? 0 : plt->num_ents; // plt entries
fwrite(&tmp_u32, sizeof(tmp_u32), 1, f);
tmp_u32 = 0;
fwrite(&tmp_u32, sizeof(tmp_u32), 1, f);
if (plt) {
dump_palette(f, plt);
}
/* writing the data */
for (i = 0; i < bitmap->data->num_chunks; i++) {
SpiceChunk *chunk = &bitmap->data->chunk[i];
int num_lines = chunk->len / bitmap->stride;
for (j = 0; j < num_lines; j++) {
dump_line(f, chunk->data + (j * bitmap->stride), n_pixel_bits, bitmap->x, row_size);
}
}
fclose(f);
}
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