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Initial implementation of experimental gamma ramp API.

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This commit is contained in:
Camilla Berglund
2010-10-13 04:04:43 +02:00
parent ffba674dbf
commit 2630d4968c
16 changed files with 647 additions and 31 deletions
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src/win32/win32_init.c
+29 -1
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@@ -30,6 +30,8 @@
#include "internal.h"
#include <stdlib.h>
#ifdef __BORLANDC__
// With the Borland C++ compiler, we want to disable FPU exceptions
#include <float.h>
@@ -59,12 +61,18 @@ static GLboolean initLibraries(void)
GetProcAddress(_glfwLibrary.Win32.gdi.instance, "SetPixelFormat");
_glfwLibrary.Win32.gdi.SwapBuffers = (SWAPBUFFERS_T)
GetProcAddress(_glfwLibrary.Win32.gdi.instance, "SwapBuffers");
_glfwLibrary.Win32.gdi.GetDeviceGammaRamp = (GETDEVICEGAMMARAMP_T)
GetProcAddress(_glfwLibrary.Win32.gdi.instance, "GetDeviceGammaRamp");
_glfwLibrary.Win32.gdi.SetDeviceGammaRamp = (SETDEVICEGAMMARAMP_T)
GetProcAddress(_glfwLibrary.Win32.gdi.instance, "SetDeviceGammaRamp");
if (!_glfwLibrary.Win32.gdi.ChoosePixelFormat ||
!_glfwLibrary.Win32.gdi.DescribePixelFormat ||
!_glfwLibrary.Win32.gdi.GetPixelFormat ||
!_glfwLibrary.Win32.gdi.SetPixelFormat ||
!_glfwLibrary.Win32.gdi.SwapBuffers)
!_glfwLibrary.Win32.gdi.SwapBuffers ||
!_glfwLibrary.Win32.gdi.GetDeviceGammaRamp ||
!_glfwLibrary.Win32.gdi.SetDeviceGammaRamp)
{
return GL_FALSE;
}
@@ -152,6 +160,19 @@ int _glfwPlatformInit(void)
_glfwLibrary.Win32.instance = GetModuleHandle(NULL);
// Initialise the internal gamma ramp
_glfwLibrary.gammaSize = 256;
_glfwLibrary.gammaRamp[GLFW_GAMMA_ORIG] =
malloc(256 * sizeof(unsigned short) * 3);
_glfwLibrary.gammaRamp[GLFW_GAMMA_CURR] =
malloc(256 * sizeof(unsigned short) * 3);
// Get the desktop DC
_glfwLibrary.Win32.desktopDC = GetDC(GetDesktopWindow());
// Save the original gamma ramp
_glfwPlatformSaveGammaRamp(GLFW_GAMMA_ORIG);
_glfwInitTimer();
return GL_TRUE;
@@ -164,6 +185,13 @@ int _glfwPlatformInit(void)
int _glfwPlatformTerminate(void)
{
// Restore the original gamma ramp
_glfwPlatformRestoreGammaRamp(GLFW_GAMMA_ORIG);
// Free the gamma ramps
free(_glfwLibrary.gammaRamp[GLFW_GAMMA_ORIG]);
free(_glfwLibrary.gammaRamp[GLFW_GAMMA_CURR]);
if (_glfwLibrary.Win32.classAtom)
{
UnregisterClass(_GLFW_WNDCLASSNAME, _glfwLibrary.Win32.instance);