void sliver_state::render_jpeg()
{
int x;
int addr = (int)m_jpeg2 + (((int)m_jpeg1) << 16);
m_bitmap_bg.fill(0);
if (addr < 0)
{
return;
}
//printf("access address %04x\n", addr);
/* Access libJPEG */
{
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
JSAMPARRAY buffer;
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_decompress(&cinfo);
jpeg_mem_src(&cinfo, memregion("user2")->base()+addr, memregion("user2")->bytes()-addr);
jpeg_read_header(&cinfo, TRUE);
jpeg_start_decompress(&cinfo);
int row_stride = cinfo.output_width * cinfo.output_components;
buffer = (*cinfo.mem->alloc_sarray)((j_common_ptr) &cinfo, JPOOL_IMAGE, row_stride, 1);
while (cinfo.output_scanline < cinfo.output_height)
{
jpeg_read_scanlines(&cinfo, buffer, 1);
int y = cinfo.output_scanline;
for (x = 0; x < row_stride/3; x++)
{
UINT8 b = buffer[0][(x*3)];
UINT8 g = buffer[0][(x*3)+1];
UINT8 r = buffer[0][(x*3)+2];
plot_pixel_rgb(x - x_offset + m_jpeg_x, y - y_offset - m_jpeg_y, r, g, b);
}
}
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
}
}
static void render_jpeg(void)
{
int x,y;
int addr=jpeg_addr;
fillbitmap(sliver_bitmap_bg, 0,0);
if(jpeg_addr<0)
{
return;
}
for (y=0;y<jpeg_h;y++)
{
for (x=0;x<jpeg_w;x++)
{
plot_pixel_rgb(x-x_offset+jpeg_x,jpeg_h-y-y_offset-jpeg_y,memory_region(REGION_USER3)[addr],memory_region(REGION_USER3)[addr+1],memory_region(REGION_USER3)[addr+2]);
addr+=3;
}
}
}
static void render_jpeg(running_machine *machine)
{
int x, y;
int addr = jpeg_addr;
UINT8 *rom;
bitmap_fill(sliver_bitmap_bg, 0, 0);
if(jpeg_addr < 0)
{
return;
}
rom = memory_region(machine, "user3");
for (y = 0; y < jpeg_h; y++)
{
for (x = 0; x < jpeg_w; x++)
{
plot_pixel_rgb(x - x_offset + jpeg_x, jpeg_h - y - y_offset - jpeg_y, rom[addr], rom[addr + 1], rom[addr + 2]);
addr+=3;
}
}
}
static void render_jpeg(running_machine &machine)
{
sliver_state *state = machine.driver_data<sliver_state>();
int x, y;
int addr = state->m_jpeg_addr;
UINT8 *rom;
bitmap_fill(state->m_bitmap_bg, 0, 0);
if (addr < 0)
{
return;
}
rom = machine.region("user3")->base();
for (y = 0; y < state->m_jpeg_h; y++)
{
for (x = 0; x < state->m_jpeg_w; x++)
{
plot_pixel_rgb(state, x - x_offset + state->m_jpeg_x, state->m_jpeg_h - y - y_offset - state->m_jpeg_y, rom[addr], rom[addr + 1], rom[addr + 2]);
addr+=3;
}
}
}
