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Null: Make platform more conformant

This makes the null platform behave more like an actual stub.  More
queryable state is tracked and there is even a fake monitor with one
whole fake video mode.
This commit is contained in:
Camilla Löwy 2020-05-21 17:16:26 +02:00
parent c72da994ba
commit e0c77f71f9
4 changed files with 462 additions and 30 deletions

View File

@ -29,6 +29,8 @@
#include "internal.h"
#include <stdlib.h>
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
@ -37,11 +39,14 @@
int _glfwPlatformInit(void)
{
_glfwInitTimerPOSIX();
_glfwPollMonitorsNull();
return GLFW_TRUE;
}
void _glfwPlatformTerminate(void)
{
free(_glfw.null.clipboardString);
_glfwTerminateOSMesa();
}

View File

@ -29,6 +29,37 @@
#include "internal.h"
#include <stdlib.h>
#include <string.h>
#include <math.h>
// The the sole (fake) video mode of our (sole) fake monitor
//
static GLFWvidmode getVideoMode(void)
{
GLFWvidmode mode;
mode.width = 1920;
mode.height = 1080;
mode.redBits = 8;
mode.greenBits = 8;
mode.blueBits = 8;
mode.refreshRate = 60;
return mode;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
void _glfwPollMonitorsNull(void)
{
const float dpi = 141.f;
const GLFWvidmode mode = getVideoMode();
_GLFWmonitor* monitor = _glfwAllocMonitor("Null SuperNoop 0",
(int) (mode.width * 25.4f / dpi),
(int) (mode.height * 25.4f / dpi));
_glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_FIRST);
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
@ -36,6 +67,7 @@
void _glfwPlatformFreeMonitor(_GLFWmonitor* monitor)
{
_glfwFreeGammaArrays(&monitor->null.ramp);
}
void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
@ -55,23 +87,69 @@ void _glfwPlatformGetMonitorWorkarea(_GLFWmonitor* monitor,
int* xpos, int* ypos,
int* width, int* height)
{
const GLFWvidmode mode = getVideoMode();
if (xpos)
*xpos = 10;
if (ypos)
ypos = 0;
if (width)
*width = mode.width;
if (height)
*height = mode.height - 10;
}
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
{
return NULL;
GLFWvidmode* mode = calloc(1, sizeof(GLFWvidmode));
*mode = getVideoMode();
*found = 1;
return mode;
}
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
*mode = getVideoMode();
}
GLFWbool _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
{
return GLFW_FALSE;
if (!monitor->null.ramp.size)
{
_glfwAllocGammaArrays(&monitor->null.ramp, 256);
for (unsigned int i = 0; i < monitor->null.ramp.size; i++)
{
const float gamma = 2.2f;
float value;
value = i / (float) (monitor->null.ramp.size - 1);
value = powf(value, 1.f / gamma) * 65535.f + 0.5f;
value = _glfw_fminf(value, 65535.f);
monitor->null.ramp.red[i] = (unsigned short) value;
monitor->null.ramp.green[i] = (unsigned short) value;
monitor->null.ramp.blue[i] = (unsigned short) value;
}
}
_glfwAllocGammaArrays(ramp, monitor->null.ramp.size);
memcpy(ramp->red, monitor->null.ramp.red, sizeof(short) * ramp->size);
memcpy(ramp->green, monitor->null.ramp.green, sizeof(short) * ramp->size);
memcpy(ramp->blue, monitor->null.ramp.blue, sizeof(short) * ramp->size);
return GLFW_TRUE;
}
void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
{
if (monitor->null.ramp.size != ramp->size)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Null: Gamma ramp size must match current ramp size");
return;
}
memcpy(monitor->null.ramp.red, ramp->red, sizeof(short) * ramp->size);
memcpy(monitor->null.ramp.green, ramp->green, sizeof(short) * ramp->size);
memcpy(monitor->null.ramp.blue, ramp->blue, sizeof(short) * ramp->size);
}

View File

@ -28,11 +28,11 @@
#include <dlfcn.h>
#define _GLFW_PLATFORM_WINDOW_STATE _GLFWwindowNull null
#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE _GLFWlibraryNull null
#define _GLFW_PLATFORM_MONITOR_STATE _GLFWmonitorNull null
#define _GLFW_PLATFORM_CONTEXT_STATE struct { int dummyContext; }
#define _GLFW_PLATFORM_MONITOR_STATE struct { int dummyMonitor; }
#define _GLFW_PLATFORM_CURSOR_STATE struct { int dummyCursor; }
#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE struct { int dummyLibraryWindow; }
#define _GLFW_PLATFORM_LIBRARY_CONTEXT_STATE struct { int dummyLibraryContext; }
#define _GLFW_EGL_CONTEXT_STATE struct { int dummyEGLContext; }
#define _GLFW_EGL_LIBRARY_CONTEXT_STATE struct { int dummyEGLLibraryContext; }
@ -56,7 +56,37 @@
//
typedef struct _GLFWwindowNull
{
int xpos;
int ypos;
int width;
int height;
char* title;
GLFWbool visible;
GLFWbool iconified;
GLFWbool maximized;
GLFWbool resizable;
GLFWbool decorated;
GLFWbool floating;
GLFWbool transparent;
float opacity;
} _GLFWwindowNull;
// Null-specific per-monitor data
//
typedef struct _GLFWmonitorNull
{
GLFWgammaramp ramp;
} _GLFWmonitorNull;
// Null-specific global data
//
typedef struct _GLFWlibraryNull
{
int xcursor;
int ycursor;
char* clipboardString;
_GLFWwindow* focusedWindow;
} _GLFWlibraryNull;
void _glfwPollMonitorsNull(void);

View File

@ -29,12 +29,71 @@
#include "internal.h"
#include <stdlib.h>
static void applySizeLimits(_GLFWwindow* window, int* width, int* height)
{
if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
{
const float ratio = (float) window->numer / (float) window->denom;
*height = (int) (*width / ratio);
}
if (window->minwidth != GLFW_DONT_CARE && *width < window->minwidth)
*width = window->minwidth;
else if (window->maxwidth != GLFW_DONT_CARE && *width > window->maxwidth)
*width = window->maxwidth;
if (window->minheight != GLFW_DONT_CARE && *height < window->minheight)
*height = window->minheight;
else if (window->maxheight != GLFW_DONT_CARE && *height > window->maxheight)
*height = window->maxheight;
}
static void fitToMonitor(_GLFWwindow* window)
{
GLFWvidmode mode;
_glfwPlatformGetVideoMode(window->monitor, &mode);
_glfwPlatformGetMonitorPos(window->monitor,
&window->null.xpos,
&window->null.ypos);
window->null.width = mode.width;
window->null.height = mode.height;
}
static void acquireMonitor(_GLFWwindow* window)
{
_glfwInputMonitorWindow(window->monitor, window);
}
static void releaseMonitor(_GLFWwindow* window)
{
if (window->monitor->window != window)
return;
_glfwInputMonitorWindow(window->monitor, NULL);
}
static int createNativeWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig)
const _GLFWwndconfig* wndconfig,
const _GLFWfbconfig* fbconfig)
{
if (window->monitor)
fitToMonitor(window);
else
{
window->null.xpos = 17;
window->null.ypos = 17;
window->null.width = wndconfig->width;
window->null.height = wndconfig->height;
}
window->null.visible = wndconfig->visible;
window->null.decorated = wndconfig->decorated;
window->null.maximized = wndconfig->maximized;
window->null.floating = wndconfig->floating;
window->null.transparent = fbconfig->transparent;
window->null.opacity = 1.f;
return GLFW_TRUE;
}
@ -49,7 +108,7 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
if (!createNativeWindow(window, wndconfig))
if (!createNativeWindow(window, wndconfig, fbconfig))
return GLFW_FALSE;
if (ctxconfig->client != GLFW_NO_API)
@ -69,11 +128,24 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
}
}
if (window->monitor)
{
_glfwPlatformShowWindow(window);
_glfwPlatformFocusWindow(window);
acquireMonitor(window);
}
return GLFW_TRUE;
}
void _glfwPlatformDestroyWindow(_GLFWwindow* window)
{
if (window->monitor)
releaseMonitor(window);
if (_glfw.null.focusedWindow == window)
_glfw.null.focusedWindow = NULL;
if (window->context.destroy)
window->context.destroy(window);
}
@ -93,14 +165,54 @@ void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
int width, int height,
int refreshRate)
{
if (window->monitor == monitor)
{
if (!monitor)
{
_glfwPlatformSetWindowPos(window, xpos, ypos);
_glfwPlatformSetWindowSize(window, width, height);
}
return;
}
if (window->monitor)
releaseMonitor(window);
_glfwInputWindowMonitor(window, monitor);
if (window->monitor)
{
window->null.visible = GLFW_TRUE;
acquireMonitor(window);
fitToMonitor(window);
}
else
{
_glfwPlatformSetWindowPos(window, xpos, ypos);
_glfwPlatformSetWindowSize(window, width, height);
}
}
void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
{
if (xpos)
*xpos = window->null.xpos;
if (ypos)
*ypos = window->null.ypos;
}
void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
{
if (window->monitor)
return;
if (window->null.xpos != xpos || window->null.ypos != ypos)
{
window->null.xpos = xpos;
window->null.ypos = ypos;
_glfwInputWindowPos(window, xpos, ypos);
}
}
void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
@ -113,18 +225,34 @@ void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
{
if (window->monitor)
return;
if (window->null.width != width || window->null.height != height)
{
window->null.width = width;
window->null.height = height;
_glfwInputWindowSize(window, width, height);
_glfwInputFramebufferSize(window, width, height);
}
}
void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
int minwidth, int minheight,
int maxwidth, int maxheight)
{
int width = window->null.width;
int height = window->null.height;
applySizeLimits(window, &width, &height);
_glfwPlatformSetWindowSize(window, width, height);
}
void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int n, int d)
{
int width = window->null.width;
int height = window->null.height;
applySizeLimits(window, &width, &height);
_glfwPlatformSetWindowSize(window, width, height);
}
void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height)
@ -139,6 +267,13 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
int* left, int* top,
int* right, int* bottom)
{
if (window->null.decorated && !window->monitor)
{
*left = 1;
*top = 10;
*right = 1;
*bottom = 1;
}
}
void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
@ -152,50 +287,89 @@ void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
{
if (_glfw.null.focusedWindow == window)
{
_glfw.null.focusedWindow = NULL;
_glfwInputWindowFocus(window, GLFW_FALSE);
}
if (!window->null.iconified)
{
window->null.iconified = GLFW_TRUE;
_glfwInputWindowIconify(window, GLFW_TRUE);
if (window->monitor)
releaseMonitor(window);
}
}
void _glfwPlatformRestoreWindow(_GLFWwindow* window)
{
if (window->null.iconified)
{
window->null.iconified = GLFW_FALSE;
_glfwInputWindowIconify(window, GLFW_FALSE);
if (window->monitor)
acquireMonitor(window);
}
else if (window->null.maximized)
{
window->null.maximized = GLFW_FALSE;
_glfwInputWindowMaximize(window, GLFW_FALSE);
}
}
void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
{
if (!window->null.maximized)
{
window->null.maximized = GLFW_TRUE;
_glfwInputWindowMaximize(window, GLFW_TRUE);
}
}
int _glfwPlatformWindowMaximized(_GLFWwindow* window)
{
return GLFW_FALSE;
return window->null.maximized;
}
int _glfwPlatformWindowHovered(_GLFWwindow* window)
{
return GLFW_FALSE;
return _glfw.null.xcursor >= window->null.xpos &&
_glfw.null.ycursor >= window->null.ypos &&
_glfw.null.xcursor <= window->null.xpos + window->null.width - 1 &&
_glfw.null.ycursor <= window->null.ypos + window->null.height - 1;
}
int _glfwPlatformFramebufferTransparent(_GLFWwindow* window)
{
return GLFW_FALSE;
return window->null.transparent;
}
void _glfwPlatformSetWindowResizable(_GLFWwindow* window, GLFWbool enabled)
{
window->null.resizable = enabled;
}
void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, GLFWbool enabled)
{
window->null.decorated = enabled;
}
void _glfwPlatformSetWindowFloating(_GLFWwindow* window, GLFWbool enabled)
{
window->null.floating = enabled;
}
float _glfwPlatformGetWindowOpacity(_GLFWwindow* window)
{
return 1.f;
return window->null.opacity;
}
void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity)
{
window->null.opacity = opacity;
}
void _glfwPlatformSetRawMouseMotion(_GLFWwindow *window, GLFWbool enabled)
@ -204,43 +378,63 @@ void _glfwPlatformSetRawMouseMotion(_GLFWwindow *window, GLFWbool enabled)
GLFWbool _glfwPlatformRawMouseMotionSupported(void)
{
return GLFW_FALSE;
return GLFW_TRUE;
}
void _glfwPlatformShowWindow(_GLFWwindow* window)
{
window->null.visible = GLFW_TRUE;
}
void _glfwPlatformRequestWindowAttention(_GLFWwindow* window)
{
}
void _glfwPlatformUnhideWindow(_GLFWwindow* window)
{
}
void _glfwPlatformHideWindow(_GLFWwindow* window)
{
if (_glfw.null.focusedWindow == window)
{
_glfw.null.focusedWindow = NULL;
_glfwInputWindowFocus(window, GLFW_FALSE);
}
window->null.visible = GLFW_FALSE;
}
void _glfwPlatformFocusWindow(_GLFWwindow* window)
{
if (_glfw.null.focusedWindow == window)
return;
if (!window->null.visible)
return;
_GLFWwindow* previous = _glfw.null.focusedWindow;
_glfw.null.focusedWindow = window;
if (previous)
{
_glfwInputWindowFocus(previous, GLFW_FALSE);
if (previous->monitor && previous->autoIconify)
_glfwPlatformIconifyWindow(previous);
}
_glfwInputWindowFocus(window, GLFW_TRUE);
}
int _glfwPlatformWindowFocused(_GLFWwindow* window)
{
return GLFW_FALSE;
return _glfw.null.focusedWindow == window;
}
int _glfwPlatformWindowIconified(_GLFWwindow* window)
{
return GLFW_FALSE;
return window->null.iconified;
}
int _glfwPlatformWindowVisible(_GLFWwindow* window)
{
return GLFW_FALSE;
return window->null.visible;
}
void _glfwPlatformPollEvents(void)
@ -261,10 +455,16 @@ void _glfwPlatformPostEmptyEvent(void)
void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos)
{
if (xpos)
*xpos = _glfw.null.xcursor - window->null.xpos;
if (ypos)
*ypos = _glfw.null.ycursor - window->null.ypos;
}
void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y)
{
_glfw.null.xcursor = window->null.xpos + (int) x;
_glfw.null.ycursor = window->null.ypos + (int) y;
}
void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
@ -293,21 +493,140 @@ void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
void _glfwPlatformSetClipboardString(const char* string)
{
char* copy = _glfw_strdup(string);
free(_glfw.null.clipboardString);
_glfw.null.clipboardString = copy;
}
const char* _glfwPlatformGetClipboardString(void)
{
return NULL;
return _glfw.null.clipboardString;
}
const char* _glfwPlatformGetScancodeName(int scancode)
{
return "";
switch (scancode)
{
case GLFW_KEY_APOSTROPHE:
return "'";
case GLFW_KEY_COMMA:
return ",";
case GLFW_KEY_MINUS:
case GLFW_KEY_KP_SUBTRACT:
return "-";
case GLFW_KEY_PERIOD:
case GLFW_KEY_KP_DECIMAL:
return ".";
case GLFW_KEY_SLASH:
case GLFW_KEY_KP_DIVIDE:
return "/";
case GLFW_KEY_SEMICOLON:
return ";";
case GLFW_KEY_EQUAL:
case GLFW_KEY_KP_EQUAL:
return "=";
case GLFW_KEY_LEFT_BRACKET:
return "[";
case GLFW_KEY_RIGHT_BRACKET:
return "]";
case GLFW_KEY_KP_MULTIPLY:
return "*";
case GLFW_KEY_KP_ADD:
return "+";
case GLFW_KEY_BACKSLASH:
case GLFW_KEY_WORLD_1:
case GLFW_KEY_WORLD_2:
return "\\";
case GLFW_KEY_0:
case GLFW_KEY_KP_0:
return "0";
case GLFW_KEY_1:
case GLFW_KEY_KP_1:
return "1";
case GLFW_KEY_2:
case GLFW_KEY_KP_2:
return "2";
case GLFW_KEY_3:
case GLFW_KEY_KP_3:
return "3";
case GLFW_KEY_4:
case GLFW_KEY_KP_4:
return "4";
case GLFW_KEY_5:
case GLFW_KEY_KP_5:
return "5";
case GLFW_KEY_6:
case GLFW_KEY_KP_6:
return "6";
case GLFW_KEY_7:
case GLFW_KEY_KP_7:
return "7";
case GLFW_KEY_8:
case GLFW_KEY_KP_8:
return "8";
case GLFW_KEY_9:
case GLFW_KEY_KP_9:
return "9";
case GLFW_KEY_A:
return "a";
case GLFW_KEY_B:
return "b";
case GLFW_KEY_C:
return "c";
case GLFW_KEY_D:
return "d";
case GLFW_KEY_E:
return "e";
case GLFW_KEY_F:
return "f";
case GLFW_KEY_G:
return "g";
case GLFW_KEY_H:
return "h";
case GLFW_KEY_I:
return "i";
case GLFW_KEY_J:
return "j";
case GLFW_KEY_K:
return "k";
case GLFW_KEY_L:
return "l";
case GLFW_KEY_M:
return "m";
case GLFW_KEY_N:
return "n";
case GLFW_KEY_O:
return "o";
case GLFW_KEY_P:
return "p";
case GLFW_KEY_Q:
return "q";
case GLFW_KEY_R:
return "r";
case GLFW_KEY_S:
return "s";
case GLFW_KEY_T:
return "t";
case GLFW_KEY_U:
return "u";
case GLFW_KEY_V:
return "v";
case GLFW_KEY_W:
return "w";
case GLFW_KEY_X:
return "x";
case GLFW_KEY_Y:
return "y";
case GLFW_KEY_Z:
return "z";
}
return NULL;
}
int _glfwPlatformGetKeyScancode(int key)
{
return -1;
return key;
}
void _glfwPlatformGetRequiredInstanceExtensions(char** extensions)
@ -327,6 +646,6 @@ VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
VkSurfaceKHR* surface)
{
// This seems like the most appropriate error to return here
return VK_ERROR_INITIALIZATION_FAILED;
return VK_ERROR_EXTENSION_NOT_PRESENT;
}