1//========================================================================
2// GLFW 3.4 - www.glfw.org
3//------------------------------------------------------------------------
4// Copyright (c) 2016 Google Inc.
5// Copyright (c) 2016-2019 Camilla Löwy <[email protected]>
6//
7// This software is provided 'as-is', without any express or implied
8// warranty. In no event will the authors be held liable for any damages
9// arising from the use of this software.
10//
11// Permission is granted to anyone to use this software for any purpose,
12// including commercial applications, and to alter it and redistribute it
13// freely, subject to the following restrictions:
14//
15// 1. The origin of this software must not be misrepresented; you must not
16// claim that you wrote the original software. If you use this software
17// in a product, an acknowledgment in the product documentation would
18// be appreciated but is not required.
19//
20// 2. Altered source versions must be plainly marked as such, and must not
21// be misrepresented as being the original software.
22//
23// 3. This notice may not be removed or altered from any source
24// distribution.
25//
26//========================================================================
27// It is fine to use C99 in this file because it will not be built with VS
28//========================================================================
29
30#include "internal.h"
31
32#include <stdlib.h>
33#include <string.h>
34#include <math.h>
35
36// The the sole (fake) video mode of our (sole) fake monitor
37//
38static GLFWvidmode getVideoMode(void)
39{
40 GLFWvidmode mode;
41 mode.width = 1920;
42 mode.height = 1080;
43 mode.redBits = 8;
44 mode.greenBits = 8;
45 mode.blueBits = 8;
46 mode.refreshRate = 60;
47 return mode;
48}
49
50//////////////////////////////////////////////////////////////////////////
51////// GLFW internal API //////
52//////////////////////////////////////////////////////////////////////////
53
54void _glfwPollMonitorsNull(void)
55{
56 const float dpi = 141.f;
57 const GLFWvidmode mode = getVideoMode();
58 _GLFWmonitor* monitor = _glfwAllocMonitor("Null SuperNoop 0",
59 (int) (mode.width * 25.4f / dpi),
60 (int) (mode.height * 25.4f / dpi));
61 _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_FIRST);
62}
63
64//////////////////////////////////////////////////////////////////////////
65////// GLFW platform API //////
66//////////////////////////////////////////////////////////////////////////
67
68void _glfwFreeMonitorNull(_GLFWmonitor* monitor)
69{
70 _glfwFreeGammaArrays(&monitor->null.ramp);
71}
72
73void _glfwGetMonitorPosNull(_GLFWmonitor* monitor, int* xpos, int* ypos)
74{
75 if (xpos)
76 *xpos = 0;
77 if (ypos)
78 *ypos = 0;
79}
80
81void _glfwGetMonitorContentScaleNull(_GLFWmonitor* monitor,
82 float* xscale, float* yscale)
83{
84 if (xscale)
85 *xscale = 1.f;
86 if (yscale)
87 *yscale = 1.f;
88}
89
90void _glfwGetMonitorWorkareaNull(_GLFWmonitor* monitor,
91 int* xpos, int* ypos,
92 int* width, int* height)
93{
94 const GLFWvidmode mode = getVideoMode();
95
96 if (xpos)
97 *xpos = 0;
98 if (ypos)
99 *ypos = 10;
100 if (width)
101 *width = mode.width;
102 if (height)
103 *height = mode.height - 10;
104}
105
106GLFWvidmode* _glfwGetVideoModesNull(_GLFWmonitor* monitor, int* found)
107{
108 GLFWvidmode* mode = _glfw_calloc(1, sizeof(GLFWvidmode));
109 *mode = getVideoMode();
110 *found = 1;
111 return mode;
112}
113
114void _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode)
115{
116 *mode = getVideoMode();
117}
118
119GLFWbool _glfwGetGammaRampNull(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
120{
121 if (!monitor->null.ramp.size)
122 {
123 unsigned int i;
124
125 _glfwAllocGammaArrays(&monitor->null.ramp, 256);
126
127 for (i = 0; i < monitor->null.ramp.size; i++)
128 {
129 const float gamma = 2.2f;
130 float value;
131 value = i / (float) (monitor->null.ramp.size - 1);
132 value = powf(value, 1.f / gamma) * 65535.f + 0.5f;
133 value = _glfw_fminf(value, 65535.f);
134
135 monitor->null.ramp.red[i] = (unsigned short) value;
136 monitor->null.ramp.green[i] = (unsigned short) value;
137 monitor->null.ramp.blue[i] = (unsigned short) value;
138 }
139 }
140
141 _glfwAllocGammaArrays(ramp, monitor->null.ramp.size);
142 memcpy(ramp->red, monitor->null.ramp.red, sizeof(short) * ramp->size);
143 memcpy(ramp->green, monitor->null.ramp.green, sizeof(short) * ramp->size);
144 memcpy(ramp->blue, monitor->null.ramp.blue, sizeof(short) * ramp->size);
145 return GLFW_TRUE;
146}
147
148void _glfwSetGammaRampNull(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
149{
150 if (monitor->null.ramp.size != ramp->size)
151 {
152 _glfwInputError(GLFW_PLATFORM_ERROR,
153 "Null: Gamma ramp size must match current ramp size");
154 return;
155 }
156
157 memcpy(monitor->null.ramp.red, ramp->red, sizeof(short) * ramp->size);
158 memcpy(monitor->null.ramp.green, ramp->green, sizeof(short) * ramp->size);
159 memcpy(monitor->null.ramp.blue, ramp->blue, sizeof(short) * ramp->size);
160}
161
162