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display.c
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display.c
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/*
pygame - Python Game Library
Copyright (C) 2000-2001 Pete Shinners
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Pete Shinners
pete@shinners.org
*/
/*
* pygame display module
*/
#define PYGAMEAPI_DISPLAY_INTERNAL
#include "pygame.h"
#include "pgcompat.h"
#include "pgopengl.h"
#include "doc/display_doc.h"
#include <SDL_syswm.h>
static PyTypeObject pgVidInfo_Type;
static PyObject *
pgVidInfo_New(const pg_VideoInfo *info);
static SDL_Renderer *pg_renderer = NULL;
static SDL_Texture *pg_texture = NULL;
typedef struct _display_state_s {
char *title;
PyObject *icon;
Uint16 *gamma_ramp;
SDL_GLContext gl_context;
int toggle_windowed_w;
int toggle_windowed_h;
Uint8 using_gl; /* using an OPENGL display without renderer */
Uint8 scaled_gl;
int scaled_gl_w;
int scaled_gl_h;
int fullscreen_backup_x;
int fullscreen_backup_y;
SDL_bool auto_resize;
} _DisplayState;
static int
pg_flip_internal(_DisplayState *state);
#ifndef PYPY_VERSION
static struct PyModuleDef _module;
#define DISPLAY_MOD_STATE(mod) ((_DisplayState *)PyModule_GetState(mod))
#define DISPLAY_STATE DISPLAY_MOD_STATE(PyState_FindModule(&_module))
#else /* PYPY_VERSION */
static struct PyModuleDef _module;
static _DisplayState _modstate = {0};
#define DISPLAY_MOD_STATE(mod) (&_modstate)
#define DISPLAY_STATE DISPLAY_MOD_STATE(0)
#endif /* PYPY_VERSION */
static void
_display_state_cleanup(_DisplayState *state)
{
if (state->title) {
free(state->title);
state->title = NULL;
}
if (state->icon) {
Py_XDECREF(state->icon);
state->icon = NULL;
}
if (state->gl_context) {
SDL_GL_DeleteContext(state->gl_context);
state->gl_context = NULL;
}
if (state->gamma_ramp) {
free(state->gamma_ramp);
state->gamma_ramp = NULL;
}
}
#if !defined(__APPLE__)
static char *icon_defaultname = "pygame_icon.bmp";
static int icon_colorkey = 0;
#else
static char *icon_defaultname = "pygame_icon_mac.bmp";
static int icon_colorkey = -1;
#endif
static char *pkgdatamodule_name = "pygame.pkgdata";
static char *imagemodule_name = "pygame.image";
static char *resourcefunc_name = "getResource";
static char *load_basicfunc_name = "load_basic";
static void
pg_close_file(PyObject *fileobj)
{
PyObject *result = PyObject_CallMethod(fileobj, "close", NULL);
if (result) {
Py_DECREF(result);
}
else {
PyErr_Clear();
}
}
static PyObject *
pg_display_resource(char *filename)
{
PyObject *imagemodule = NULL;
PyObject *load_basicfunc = NULL;
PyObject *pkgdatamodule = NULL;
PyObject *resourcefunc = NULL;
PyObject *fresult = NULL;
PyObject *result = NULL;
PyObject *name = NULL;
pkgdatamodule = PyImport_ImportModule(pkgdatamodule_name);
if (!pkgdatamodule)
goto display_resource_end;
resourcefunc = PyObject_GetAttrString(pkgdatamodule, resourcefunc_name);
if (!resourcefunc)
goto display_resource_end;
imagemodule = PyImport_ImportModule(imagemodule_name);
if (!imagemodule)
goto display_resource_end;
load_basicfunc = PyObject_GetAttrString(imagemodule, load_basicfunc_name);
if (!load_basicfunc)
goto display_resource_end;
fresult = PyObject_CallFunction(resourcefunc, "s", filename);
if (!fresult)
goto display_resource_end;
name = PyObject_GetAttrString(fresult, "name");
if (name != NULL) {
if (PyUnicode_Check(name)) {
pg_close_file(fresult);
Py_DECREF(fresult);
fresult = name;
name = NULL;
}
}
else {
PyErr_Clear();
}
result = PyObject_CallFunction(load_basicfunc, "O", fresult);
if (!result)
goto display_resource_end;
display_resource_end:
Py_XDECREF(pkgdatamodule);
Py_XDECREF(resourcefunc);
Py_XDECREF(imagemodule);
Py_XDECREF(load_basicfunc);
Py_XDECREF(fresult);
Py_XDECREF(name);
return result;
}
/* init routines */
static PyObject *
pg_display_quit(PyObject *self, PyObject *_null)
{
_DisplayState *state = DISPLAY_STATE;
_display_state_cleanup(state);
if (pg_GetDefaultWindowSurface()) {
pgSurface_AsSurface(pg_GetDefaultWindowSurface()) = NULL;
pg_SetDefaultWindowSurface(NULL);
pg_SetDefaultWindow(NULL);
}
pg_mod_autoquit(IMPPREFIX "event");
pg_mod_autoquit(IMPPREFIX "time");
if (SDL_WasInit(SDL_INIT_VIDEO)) {
SDL_QuitSubSystem(SDL_INIT_VIDEO);
}
Py_RETURN_NONE;
}
static int
_pg_mac_display_init(void)
{
#if defined(__APPLE__) && defined(darwin)
PyObject *module, *rval;
int status;
module = PyImport_ImportModule("pygame.macosx");
if (!module)
return 0;
rval = PyObject_CallMethod(module, "Video_AutoInit", "");
Py_DECREF(module);
if (!rval)
return 0;
status = PyObject_IsTrue(rval);
Py_DECREF(rval);
if (status != 1)
return 0;
#endif /* Mac */
return 1;
}
static PyObject *
pg_display_init(PyObject *self, PyObject *_null)
{
const char *drivername;
/* Compatibility:
* windib video driver was renamed in SDL2, and we don't want it to fail.
*/
drivername = SDL_getenv("SDL_VIDEODRIVER");
if (drivername &&
!SDL_strncasecmp("windib", drivername, SDL_strlen(drivername))) {
SDL_setenv("SDL_VIDEODRIVER", "windows", 1);
}
if (!SDL_WasInit(SDL_INIT_VIDEO)) {
if (!_pg_mac_display_init())
return NULL;
if (SDL_InitSubSystem(SDL_INIT_VIDEO))
return RAISE(pgExc_SDLError, SDL_GetError());
}
if (!pg_mod_autoinit(IMPPREFIX "time"))
return NULL;
if (!pg_mod_autoinit(IMPPREFIX "event"))
return NULL;
Py_RETURN_NONE;
}
static PyObject *
pg_get_init(PyObject *self, PyObject *_null)
{
return PyBool_FromLong(SDL_WasInit(SDL_INIT_VIDEO) != 0);
}
static PyObject *
pg_get_active(PyObject *self, PyObject *_null)
{
Uint32 flags = SDL_GetWindowFlags(pg_GetDefaultWindow());
return PyBool_FromLong((flags & SDL_WINDOW_SHOWN) &&
!(flags & SDL_WINDOW_MINIMIZED));
}
/* vidinfo object */
static void
pg_vidinfo_dealloc(PyObject *self)
{
PyObject_Free(self);
}
static PyObject *
pg_vidinfo_getattr(PyObject *self, char *name)
{
pg_VideoInfo *info = &((pgVidInfoObject *)self)->info;
int current_w = -1;
int current_h = -1;
SDL_version versioninfo;
SDL_VERSION(&versioninfo);
if (versioninfo.major > 1 ||
(versioninfo.minor >= 2 && versioninfo.patch >= 10)) {
current_w = info->current_w;
current_h = info->current_h;
}
if (!strcmp(name, "hw"))
return PyLong_FromLong(info->hw_available);
else if (!strcmp(name, "wm"))
return PyLong_FromLong(info->wm_available);
else if (!strcmp(name, "blit_hw"))
return PyLong_FromLong(info->blit_hw);
else if (!strcmp(name, "blit_hw_CC"))
return PyLong_FromLong(info->blit_hw_CC);
else if (!strcmp(name, "blit_hw_A"))
return PyLong_FromLong(info->blit_hw_A);
else if (!strcmp(name, "blit_sw"))
return PyLong_FromLong(info->blit_hw);
else if (!strcmp(name, "blit_sw_CC"))
return PyLong_FromLong(info->blit_hw_CC);
else if (!strcmp(name, "blit_sw_A"))
return PyLong_FromLong(info->blit_hw_A);
else if (!strcmp(name, "blit_fill"))
return PyLong_FromLong(info->blit_fill);
else if (!strcmp(name, "video_mem"))
return PyLong_FromLong(info->video_mem);
else if (!strcmp(name, "bitsize"))
return PyLong_FromLong(info->vfmt->BitsPerPixel);
else if (!strcmp(name, "bytesize"))
return PyLong_FromLong(info->vfmt->BytesPerPixel);
else if (!strcmp(name, "masks"))
return Py_BuildValue("(iiii)", info->vfmt->Rmask, info->vfmt->Gmask,
info->vfmt->Bmask, info->vfmt->Amask);
else if (!strcmp(name, "shifts"))
return Py_BuildValue("(iiii)", info->vfmt->Rshift, info->vfmt->Gshift,
info->vfmt->Bshift, info->vfmt->Ashift);
else if (!strcmp(name, "losses"))
return Py_BuildValue("(iiii)", info->vfmt->Rloss, info->vfmt->Gloss,
info->vfmt->Bloss, info->vfmt->Aloss);
else if (!strcmp(name, "current_h"))
return PyLong_FromLong(current_h);
else if (!strcmp(name, "current_w"))
return PyLong_FromLong(current_w);
return RAISE(PyExc_AttributeError, "does not exist in vidinfo");
}
PyObject *
pg_vidinfo_str(PyObject *self)
{
int current_w = -1;
int current_h = -1;
pg_VideoInfo *info = &((pgVidInfoObject *)self)->info;
const char *pixel_format_name = SDL_GetPixelFormatName(info->vfmt->format);
SDL_version versioninfo;
SDL_VERSION(&versioninfo);
if (versioninfo.major > 1 ||
(versioninfo.minor >= 2 && versioninfo.patch >= 10)) {
current_w = info->current_w;
current_h = info->current_h;
}
return PyUnicode_FromFormat(
"<VideoInfo(hw = %u, wm = %u,video_mem = %u\n"
" blit_hw = %u, blit_hw_CC = %u, blit_hw_A = %u,\n"
" blit_sw = %u, blit_sw_CC = %u, blit_sw_A = %u,\n"
" bitsize = %u, bytesize = %u,\n"
" masks = (0x%08x, 0x%08x, 0x%08x, 0x%08x),\n"
" shifts = (%u, %u, %u, %u),\n"
" losses = (%u, %u, %u, %u),\n"
" current_w = %d, current_h = %d\n"
" pixel_format = %s)\n"
">",
info->hw_available, info->wm_available, info->video_mem, info->blit_hw,
info->blit_hw_CC, info->blit_hw_A, info->blit_sw, info->blit_sw_CC,
info->blit_sw_A, info->vfmt->BitsPerPixel, info->vfmt->BytesPerPixel,
info->vfmt->Rmask, info->vfmt->Gmask, info->vfmt->Bmask,
info->vfmt->Amask, info->vfmt->Rshift, info->vfmt->Gshift,
info->vfmt->Bshift, info->vfmt->Ashift, info->vfmt->Rloss,
info->vfmt->Gloss, info->vfmt->Bloss, info->vfmt->Aloss, current_w,
current_h, pixel_format_name);
}
static PyTypeObject pgVidInfo_Type = {
PyVarObject_HEAD_INIT(NULL, 0).tp_name = "pygame.display.VidInfo",
.tp_basicsize = sizeof(pgVidInfoObject),
.tp_dealloc = pg_vidinfo_dealloc,
.tp_getattr = pg_vidinfo_getattr,
.tp_repr = pg_vidinfo_str,
};
static PyObject *
pgVidInfo_New(const pg_VideoInfo *i)
{
pgVidInfoObject *info;
if (!i)
return RAISE(pgExc_SDLError, SDL_GetError());
info = PyObject_New(pgVidInfoObject, &pgVidInfo_Type);
if (!info)
return NULL;
info->info = *i;
info->info.vfmt = &info->info.vfmt_data;
return (PyObject *)info;
}
static pg_VideoInfo *
pg_GetVideoInfo(pg_VideoInfo *info)
{
SDL_DisplayMode mode;
SDL_PixelFormat *tempformat;
Uint32 formatenum;
pgSurfaceObject *winsurfobj;
SDL_Surface *winsurf;
#pragma PG_WARN(hardcoding wm_available to 1)
#pragma PG_WARN(setting available video RAM to 0 KB)
memset(info, 0, sizeof(pg_VideoInfo));
info->wm_available = 1;
winsurfobj = pg_GetDefaultWindowSurface();
if (winsurfobj) {
winsurf = pgSurface_AsSurface(winsurfobj);
info->current_w = winsurf->w;
info->current_h = winsurf->h;
info->vfmt_data = *(winsurf->format);
info->vfmt = &info->vfmt_data;
}
else {
if (SDL_GetCurrentDisplayMode(0, &mode) == 0) {
info->current_w = mode.w;
info->current_h = mode.h;
formatenum = mode.format;
}
else {
info->current_w = -1;
info->current_h = -1;
formatenum = SDL_PIXELFORMAT_UNKNOWN;
}
if ((tempformat = SDL_AllocFormat(formatenum))) {
info->vfmt_data = *tempformat;
info->vfmt = &info->vfmt_data;
SDL_FreeFormat(tempformat);
}
else {
PyErr_SetString(pgExc_SDLError, SDL_GetError());
return (pg_VideoInfo *)NULL;
}
}
return info;
}
static PyObject *
pgInfo(PyObject *self, PyObject *_null)
{
pg_VideoInfo info;
VIDEO_INIT_CHECK();
return pgVidInfo_New(pg_GetVideoInfo(&info));
}
static PyObject *
pg_get_wm_info(PyObject *self, PyObject *_null)
{
PyObject *dict;
PyObject *tmp;
SDL_SysWMinfo info;
SDL_Window *win;
VIDEO_INIT_CHECK();
SDL_VERSION(&(info.version))
dict = PyDict_New();
if (!dict)
return NULL;
win = pg_GetDefaultWindow();
if (!win)
return dict;
if (!SDL_GetWindowWMInfo(win, &info))
return dict;
(void)tmp;
#if defined(SDL_VIDEO_DRIVER_WINDOWS)
tmp = PyLong_FromLongLong((long long)info.info.win.window);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
tmp = PyLong_FromLongLong((long long)info.info.win.hdc);
PyDict_SetItemString(dict, "hdc", tmp);
Py_DECREF(tmp);
tmp = PyLong_FromLongLong((long long)info.info.win.hinstance);
PyDict_SetItemString(dict, "hinstance", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_WINRT)
tmp = PyCapsule_New(info.info.winrt.window, "window", NULL);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_X11)
tmp = PyLong_FromLong(info.info.x11.window);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
tmp = PyCapsule_New(info.info.x11.display, "display", NULL);
PyDict_SetItemString(dict, "display", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_DIRECTFB)
tmp = PyCapsule_New(info.info.dfb.dfb, "dfb", NULL);
PyDict_SetItemString(dict, "dfb", tmp);
Py_DECREF(tmp);
tmp = PyCapsule_New(info.info.dfb.window, "window", NULL);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
tmp = PyCapsule_New(info.info.dfb.surface, "surface", NULL);
PyDict_SetItemString(dict, "surface", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_COCOA)
tmp = PyCapsule_New(info.info.cocoa.window, "window", NULL);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_UIKIT)
tmp = PyCapsule_New(info.info.uikit.window, "window", NULL);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
tmp = PyLong_FromLong(info.info.uikit.framebuffer);
PyDict_SetItemString(dict, "framebuffer", tmp);
Py_DECREF(tmp);
tmp = PyLong_FromLong(info.info.uikit.colorbuffer);
PyDict_SetItemString(dict, "colorbuffer", tmp);
Py_DECREF(tmp);
tmp = PyLong_FromLong(info.info.uikit.resolveFramebuffer);
PyDict_SetItemString(dict, "resolveFramebuffer", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_WAYLAND)
tmp = PyCapsule_New(info.info.wl.display, "display", NULL);
PyDict_SetItemString(dict, "display", tmp);
Py_DECREF(tmp);
tmp = PyCapsule_New(info.info.wl.surface, "surface", NULL);
PyDict_SetItemString(dict, "surface", tmp);
Py_DECREF(tmp);
tmp = PyCapsule_New(info.info.wl.shell_surface, "shell_surface", NULL);
PyDict_SetItemString(dict, "shell_surface", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_ANDROID)
tmp = PyCapsule_New(info.info.android.window, "window", NULL);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
tmp = PyLong_FromLong((long)info.info.android.surface);
PyDict_SetItemString(dict, "surface", tmp);
Py_DECREF(tmp);
#endif
#if defined(SDL_VIDEO_DRIVER_VIVANTE)
tmp = PyLong_FromLong((long)info.info.vivante.display);
PyDict_SetItemString(dict, "display", tmp);
Py_DECREF(tmp);
tmp = PyLong_FromLong((long)info.info.vivante.window);
PyDict_SetItemString(dict, "window", tmp);
Py_DECREF(tmp);
#endif
return dict;
}
/* display functions */
static PyObject *
pg_get_driver(PyObject *self, PyObject *_null)
{
const char *name = NULL;
VIDEO_INIT_CHECK();
name = SDL_GetCurrentVideoDriver();
if (!name)
Py_RETURN_NONE;
return PyUnicode_FromString(name);
}
static PyObject *
pg_get_surface(PyObject *self, PyObject *_null)
{
_DisplayState *state = DISPLAY_MOD_STATE(self);
SDL_Window *win = pg_GetDefaultWindow();
if (pg_renderer != NULL || state->using_gl) {
pgSurfaceObject *surface = pg_GetDefaultWindowSurface();
if (!surface)
Py_RETURN_NONE;
Py_INCREF(surface);
return (PyObject *)surface;
}
else if (win == NULL) {
Py_RETURN_NONE;
}
else {
SDL_Surface *sdl_surface = SDL_GetWindowSurface(win);
pgSurfaceObject *old_surface = pg_GetDefaultWindowSurface();
if (sdl_surface != old_surface->surf) {
pgSurfaceObject *new_surface =
(pgSurfaceObject *)pgSurface_New2(sdl_surface, SDL_FALSE);
if (!new_surface)
return NULL;
pg_SetDefaultWindowSurface(new_surface);
Py_INCREF((PyObject *)new_surface);
return (PyObject *)new_surface;
}
Py_INCREF(old_surface);
return (PyObject *)old_surface;
}
return NULL;
}
static PyObject *
pg_gl_set_attribute(PyObject *self, PyObject *arg, PyObject *kwargs)
{
int flag, value, result;
VIDEO_INIT_CHECK();
static char *keywords[] = {"flag", "value", NULL};
if (!PyArg_ParseTupleAndKeywords(arg, kwargs, "ii", keywords, &flag,
&value))
return NULL;
if (flag == -1) /*an undefined/unsupported val, ignore*/
Py_RETURN_NONE;
result = SDL_GL_SetAttribute(flag, value);
if (result == -1)
return RAISE(pgExc_SDLError, SDL_GetError());
Py_RETURN_NONE;
}
static PyObject *
pg_gl_get_attribute(PyObject *self, PyObject *arg, PyObject *kwargs)
{
int flag, value, result;
VIDEO_INIT_CHECK();
static char *keywords[] = {"flag", NULL};
if (!PyArg_ParseTupleAndKeywords(arg, kwargs, "i", keywords, &flag))
return NULL;
result = SDL_GL_GetAttribute(flag, &value);
if (result == -1)
return RAISE(pgExc_SDLError, SDL_GetError());
return PyLong_FromLong(value);
}
/*
** Looks at the SDL1 environment variables:
** - SDL_VIDEO_WINDOW_POS
* "x,y"
* "center"
** - SDL_VIDEO_CENTERED
* if set the window should be centered.
*
* Returns:
* 0 if we do not want to position the window.
* 1 if we set the x and y.
* x, and y are set to the x and y.
* center_window is set to 0.
* 2 if we want the window centered.
* center_window is set to 1.
*/
int
_get_video_window_pos(int *x, int *y, int *center_window)
{
const char *sdl_video_window_pos = SDL_getenv("SDL_VIDEO_WINDOW_POS");
const char *sdl_video_centered = SDL_getenv("SDL_VIDEO_CENTERED");
int xx, yy;
if (sdl_video_window_pos) {
if (SDL_sscanf(sdl_video_window_pos, "%d,%d", &xx, &yy) == 2) {
*x = xx;
*y = yy;
*center_window = 0;
return 1;
}
if (SDL_strcmp(sdl_video_window_pos, "center") == 0) {
sdl_video_centered = sdl_video_window_pos;
}
}
if (sdl_video_centered) {
*center_window = 1;
return 2;
}
return 0;
}
static int SDLCALL
pg_ResizeEventWatch(void *userdata, SDL_Event *event)
{
SDL_Window *pygame_window;
_DisplayState *state;
SDL_Window *window;
if (event->type != SDL_WINDOWEVENT)
return 0;
pygame_window = pg_GetDefaultWindow();
state = DISPLAY_MOD_STATE((PyObject *)userdata);
window = SDL_GetWindowFromID(event->window.windowID);
if (window != pygame_window)
return 0;
if (pg_renderer != NULL) {
if (event->window.event == SDL_WINDOWEVENT_MAXIMIZED) {
SDL_RenderSetIntegerScale(pg_renderer, SDL_FALSE);
}
if (event->window.event == SDL_WINDOWEVENT_RESTORED) {
SDL_RenderSetIntegerScale(
pg_renderer, !(SDL_GetHintBoolean(
"SDL_HINT_RENDER_SCALE_QUALITY", SDL_FALSE)));
}
return 0;
}
if (state->using_gl) {
if (event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
GL_glViewport_Func p_glViewport =
(GL_glViewport_Func)SDL_GL_GetProcAddress("glViewport");
int wnew = event->window.data1;
int hnew = event->window.data2;
SDL_GL_MakeCurrent(pygame_window, state->gl_context);
if (state->scaled_gl) {
float saved_aspect_ratio =
((float)state->scaled_gl_w) / (float)state->scaled_gl_h;
float window_aspect_ratio = ((float)wnew) / (float)hnew;
if (window_aspect_ratio > saved_aspect_ratio) {
int width = (int)(hnew * saved_aspect_ratio);
p_glViewport((wnew - width) / 2, 0, width, hnew);
}
else {
p_glViewport(0, 0, wnew, (int)(wnew / saved_aspect_ratio));
}
}
else {
p_glViewport(0, 0, wnew, hnew);
}
}
return 0;
}
if (event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
if (window == pygame_window) {
SDL_Surface *sdl_surface = SDL_GetWindowSurface(window);
pgSurfaceObject *old_surface = pg_GetDefaultWindowSurface();
if (sdl_surface != old_surface->surf) {
old_surface->surf = sdl_surface;
}
}
}
return 0;
}
static PyObject *
pg_display_set_autoresize(PyObject *self, PyObject *arg)
{
int do_resize;
_DisplayState *state = DISPLAY_MOD_STATE(self);
do_resize = PyObject_IsTrue(arg);
if (do_resize == -1) {
return NULL;
}
state->auto_resize = (SDL_bool)do_resize;
SDL_DelEventWatch(pg_ResizeEventWatch, self);
if (do_resize) {
SDL_AddEventWatch(pg_ResizeEventWatch, self);
Py_RETURN_TRUE;
}
else {
Py_RETURN_FALSE;
}
}
int
_get_display(SDL_Window *win)
{
char *display_env = SDL_getenv("PYGAME_DISPLAY");
int display = 0; /* default display 0 */
if (win != NULL) {
display = SDL_GetWindowDisplayIndex(win);
return display;
}
else if (display_env != NULL) {
display = SDL_atoi(display_env);
return display;
}
/* On e.g. Linux X11, checking the mouse pointer requires that the
* video subsystem is initialized to avoid crashes.
*
* Note that we do not bother raising an error here; the condition will
* be rechecked after parsing the arguments and the function will throw
* the relevant error there.
*/
else if (SDL_WasInit(SDL_INIT_VIDEO)) {
/* get currently "active" desktop, containing mouse ptr */
int num_displays, i;
SDL_Rect display_bounds;
SDL_Point mouse_position;
SDL_GetGlobalMouseState(&mouse_position.x, &mouse_position.y);
num_displays = SDL_GetNumVideoDisplays();
for (i = 0; i < num_displays; i++) {
if (SDL_GetDisplayBounds(i, &display_bounds) == 0) {
if (SDL_PointInRect(&mouse_position, &display_bounds)) {
display = i;
break;
}
}
}
}
return display;
}
static PyObject *
pg_set_mode(PyObject *self, PyObject *arg, PyObject *kwds)
{
static const char *const DefaultTitle = "pygame window";
_DisplayState *state = DISPLAY_MOD_STATE(self);
SDL_Window *win = pg_GetDefaultWindow();
pgSurfaceObject *surface = pg_GetDefaultWindowSurface();
SDL_Surface *surf = NULL;
SDL_Surface *newownedsurf = NULL;
int depth = 0;
int flags = 0;
int w, h;
PyObject *size = NULL;
int vsync = SDL_FALSE;
/* display will get overwritten by ParseTupleAndKeywords only if display
parameter is given. By default, put the new window on the same
screen as the old one */
int display = _get_display(win);
char *title = state->title;
char *scale_env;
char *keywords[] = {"size", "flags", "depth", "display", "vsync", NULL};
scale_env = SDL_getenv("PYGAME_FORCE_SCALE");
if (!PyArg_ParseTupleAndKeywords(arg, kwds, "|Oiiii", keywords, &size,
&flags, &depth, &display, &vsync))
return NULL;
if (scale_env != NULL) {
flags |= PGS_SCALED;
if (strcmp(scale_env, "photo") == 0) {
SDL_SetHintWithPriority(SDL_HINT_RENDER_SCALE_QUALITY, "best",
SDL_HINT_NORMAL);
}
}
if (size != NULL) {
if (!pg_TwoIntsFromObj(size, &w, &h))
return RAISE(PyExc_TypeError, "size must be two numbers");
if (w < 0 || h < 0)
return RAISE(pgExc_SDLError,
"Cannot set negative sized display mode");
}
else {
w = 0;
h = 0;
}
if (!SDL_WasInit(SDL_INIT_VIDEO)) {
/* note SDL works special like this too */
if (!pg_display_init(NULL, NULL))
return NULL;
}
state->using_gl = (flags & PGS_OPENGL) != 0;
state->scaled_gl = state->using_gl && (flags & PGS_SCALED) != 0;
if (state->scaled_gl) {
if (PyErr_WarnEx(PyExc_FutureWarning,
"SCALED|OPENGL is experimental and subject to change",
1) != 0)
return NULL;
}
if (!state->title) {
state->title = malloc((strlen(DefaultTitle) + 1) * sizeof(char));
if (!state->title)
return PyErr_NoMemory();
strcpy(state->title, DefaultTitle);
title = state->title;
}
// if (vsync && !(flags & (PGS_SCALED | PGS_OPENGL))) {
// return RAISE(pgExc_SDLError,
// "vsync needs either SCALED or OPENGL flag");
// }
/* set these only in toggle_fullscreen, clear on set_mode */
state->toggle_windowed_w = 0;
state->toggle_windowed_h = 0;
if (pg_texture) {
SDL_DestroyTexture(pg_texture);
pg_texture = NULL;
}
if (pg_renderer) {
SDL_DestroyRenderer(pg_renderer);
pg_renderer = NULL;
}
SDL_DelEventWatch(pg_ResizeEventWatch, self);
{
Uint32 sdl_flags = 0;
SDL_DisplayMode display_mode;
if (SDL_GetDesktopDisplayMode(display, &display_mode) != 0) {
return RAISE(pgExc_SDLError, SDL_GetError());
}
if (w == 0 && h == 0 && !(flags & PGS_SCALED)) {
/* We are free to choose a resolution in this case, so we can
avoid changing the physical resolution. This used to default
to the max supported by the monitor, but we can use current
desktop resolution without breaking compatibility. */
w = display_mode.w;
h = display_mode.h;
}
if (flags & PGS_FULLSCREEN) {
if (flags & PGS_SCALED) {
sdl_flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
}
else if (w == display_mode.w && h == display_mode.h) {
/* No need to change physical resolution.
Borderless fullscreen is preferred when possible */
sdl_flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
}
else {
sdl_flags |= SDL_WINDOW_FULLSCREEN;
}
}
if (flags & PGS_SCALED) {
if (w == 0 || h == 0)
return RAISE(pgExc_SDLError,
"Cannot set 0 sized SCALED display mode");
}
if (flags & PGS_OPENGL)
sdl_flags |= SDL_WINDOW_OPENGL;
if (flags & PGS_NOFRAME)
sdl_flags |= SDL_WINDOW_BORDERLESS;
if (flags & PGS_RESIZABLE) {
sdl_flags |= SDL_WINDOW_RESIZABLE;
if (state->auto_resize)
SDL_AddEventWatch(pg_ResizeEventWatch, self);
}
if (flags & PGS_SHOWN)
sdl_flags |= SDL_WINDOW_SHOWN;
if (flags & PGS_HIDDEN)
sdl_flags |= SDL_WINDOW_HIDDEN;
if (!(sdl_flags & SDL_WINDOW_HIDDEN))
sdl_flags |= SDL_WINDOW_SHOWN;
if (flags & PGS_OPENGL) {
/* Must be called before creating context */
if (flags & PGS_DOUBLEBUF) {
flags &= ~PGS_DOUBLEBUF;
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
}
else
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 0);
}
#pragma PG_WARN(Not setting bpp ?)
#pragma PG_WARN(Add mode stuff.)
{
int w_1 = w, h_1 = h;
int scale = 1;
int center_window = 0;
int x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
int y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(display);
_get_video_window_pos(&x, &y, ¢er_window);
if (center_window) {
x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);
}
if (win) {
if (SDL_GetWindowDisplayIndex(win) == display) {
// fullscreen windows don't hold window x and y as needed
if (SDL_GetWindowFlags(win) &
(SDL_WINDOW_FULLSCREEN |
SDL_WINDOW_FULLSCREEN_DESKTOP)) {
x = state->fullscreen_backup_x;
y = state->fullscreen_backup_y;
// if the program goes into fullscreen first the "saved
// x and y" are "undefined position" that should be