mirror of
https://github.com/holub/mame
synced 2025-05-07 06:44:51 +03:00
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
// license:BSD-3-Clause
|
|
// copyright-holders:Aaron Giles
|
|
//============================================================
|
|
//
|
|
// drawgdi.c - Win32 GDI drawing
|
|
//
|
|
//============================================================
|
|
|
|
#include "emu.h"
|
|
#include "drawgdi.h"
|
|
#include "rendersw.hxx"
|
|
|
|
//============================================================
|
|
// destructor
|
|
//============================================================
|
|
|
|
renderer_gdi::~renderer_gdi()
|
|
{
|
|
// free the bitmap memory
|
|
if (m_bmdata != nullptr)
|
|
global_free_array(m_bmdata);
|
|
}
|
|
|
|
//============================================================
|
|
// renderer_gdi::create
|
|
//============================================================
|
|
|
|
int renderer_gdi::create()
|
|
{
|
|
// fill in the bitmap info header
|
|
m_bminfo.bmiHeader.biSize = sizeof(m_bminfo.bmiHeader);
|
|
m_bminfo.bmiHeader.biPlanes = 1;
|
|
m_bminfo.bmiHeader.biBitCount = 32;
|
|
m_bminfo.bmiHeader.biCompression = BI_RGB;
|
|
m_bminfo.bmiHeader.biSizeImage = 0;
|
|
m_bminfo.bmiHeader.biXPelsPerMeter = 0;
|
|
m_bminfo.bmiHeader.biYPelsPerMeter = 0;
|
|
m_bminfo.bmiHeader.biClrUsed = 0;
|
|
m_bminfo.bmiHeader.biClrImportant = 0;
|
|
return 0;
|
|
}
|
|
|
|
//============================================================
|
|
// renderer_gdi::get_primitives
|
|
//============================================================
|
|
|
|
render_primitive_list *renderer_gdi::get_primitives()
|
|
{
|
|
auto win = try_getwindow();
|
|
if (win == nullptr)
|
|
return nullptr;
|
|
|
|
RECT client;
|
|
GetClientRect(std::static_pointer_cast<win_window_info>(win)->platform_window(), &client);
|
|
if ((rect_width(&client) == 0) || (rect_height(&client) == 0))
|
|
return nullptr;
|
|
win->target()->set_bounds(rect_width(&client), rect_height(&client), win->pixel_aspect());
|
|
return &win->target()->get_primitives();
|
|
}
|
|
|
|
//============================================================
|
|
// renderer_gdi::draw
|
|
//============================================================
|
|
|
|
int renderer_gdi::draw(const int update)
|
|
{
|
|
auto win = assert_window();
|
|
|
|
// we don't have any special resize behaviors
|
|
if (win->m_resize_state == RESIZE_STATE_PENDING)
|
|
win->m_resize_state = RESIZE_STATE_NORMAL;
|
|
|
|
// get the target bounds
|
|
RECT bounds;
|
|
GetClientRect(std::static_pointer_cast<win_window_info>(win)->platform_window(), &bounds);
|
|
|
|
// compute width/height/pitch of target
|
|
int width = rect_width(&bounds);
|
|
int height = rect_height(&bounds);
|
|
int pitch = (width + 3) & ~3;
|
|
|
|
// make sure our temporary bitmap is big enough
|
|
if (pitch * height * 4 > m_bmsize)
|
|
{
|
|
m_bmsize = pitch * height * 4 * 2;
|
|
global_free_array(m_bmdata);
|
|
m_bmdata = global_alloc_array(uint8_t, m_bmsize);
|
|
}
|
|
|
|
// draw the primitives to the bitmap
|
|
win->m_primlist->acquire_lock();
|
|
software_renderer<uint32_t, 0,0,0, 16,8,0>::draw_primitives(*win->m_primlist, m_bmdata, width, height, pitch);
|
|
win->m_primlist->release_lock();
|
|
|
|
// fill in bitmap-specific info
|
|
m_bminfo.bmiHeader.biWidth = pitch;
|
|
m_bminfo.bmiHeader.biHeight = -height;
|
|
|
|
// blit to the screen
|
|
StretchDIBits(win->m_dc, 0, 0, width, height,
|
|
0, 0, width, height,
|
|
m_bmdata, &m_bminfo, DIB_RGB_COLORS, SRCCOPY);
|
|
return 0;
|
|
}
|