platform independent gamma detection

PanosK92 · Feb 9, 2025 · 42b2409 · 42b2409
1 parent 07df62c
commit 42b2409
Showing 1 changed file with 0 additions and 36 deletions.
diff --git a/runtime/Display/Display.cpp b/runtime/Display/Display.cpp
@@ -163,41 +163,6 @@ namespace spartan
 
         void get_gamma()
         {
-
-        #ifdef _WIN32
-            HDC hdc = GetDC(nullptr); // get the device context for the primary monitor
-            if (!hdc)
-            {
-                SP_LOG_ERROR("Failed to get device context");
-                return;
-            }
-
-            WORD gammaRamp[3][256];
-            if (GetDeviceGammaRamp(hdc, gammaRamp))
-            {
-                // normalize the gamma ramp values and calculate the gamma value
-                float sum = 0.0f;
-                for (int i = 0; i < 256; ++i)
-                {
-                    // normalize the red channel value to [0, 1]
-                    float normalizedValue = static_cast<float>(gammaRamp[0][i]) / 65535.0f;
-                    // accumulate the normalized value
-                    sum += normalizedValue;
-                }
-
-                // calculate the average normalized value
-                float averageValue = sum / 256.0f;
-                // estimate gamma as the inverse of the average value
-                *gamma = 1.0f / averageValue;
-            }
-            else
-            {
-                SP_LOG_ERROR("Failed to get gamma ramp");
-            }
-
-            ReleaseDC(nullptr, hdc);
-
-        #elif defined(__linux__)
             gamma = 2.2f;
             Uint16 gammaRamp[256];
             if (SDL_GetWindowGammaRamp(static_cast<SDL_Window*>(Window::GetHandleSDL()), gammaRamp, gammaRamp, gammaRamp) == 0)
@@ -220,7 +185,6 @@ namespace spartan
             {
                 SP_LOG_ERROR(std::string("Unable to get gamma ramp: ") + std::string(SDL_GetError()))
             }
-        #endif
         }
     }