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fix: vsync off no anava en Wayland

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This commit is contained in:
Sergio
2026-03-29 14:13:02 +02:00
parent ad467847b9
commit d6ecadfd3a
3 changed files with 38 additions and 6 deletions
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21
source/core/rendering/sdl3gpu/sdl3gpu_shader.cpp
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@@ -433,7 +433,7 @@ namespace Rendering {
device_ = nullptr;
return false;
}
SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, vsync_ ? SDL_GPU_PRESENTMODE_VSYNC : SDL_GPU_PRESENTMODE_IMMEDIATE);
SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, bestPresentMode(vsync_));
}
// ----------------------------------------------------------------
@@ -1144,10 +1144,27 @@ namespace Rendering {
active_shader_ = type;
}
auto SDL3GPUShader::bestPresentMode(bool vsync) const -> SDL_GPUPresentMode {
if (vsync) {
return SDL_GPU_PRESENTMODE_VSYNC;
}
// IMMEDIATE: sin sincronización — el driver puede no soportarlo en Wayland/compositing
if (SDL_WindowSupportsGPUPresentMode(device_, window_, SDL_GPU_PRESENTMODE_IMMEDIATE)) {
return SDL_GPU_PRESENTMODE_IMMEDIATE;
}
// MAILBOX: presenta en el siguiente VBlank pero sin bloquear el hilo (triple buffer)
if (SDL_WindowSupportsGPUPresentMode(device_, window_, SDL_GPU_PRESENTMODE_MAILBOX)) {
SDL_Log("SDL3GPUShader: IMMEDIATE no soportado, usando MAILBOX para VSync desactivado");
return SDL_GPU_PRESENTMODE_MAILBOX;
}
SDL_Log("SDL3GPUShader: IMMEDIATE y MAILBOX no soportados, forzando VSYNC");
return SDL_GPU_PRESENTMODE_VSYNC;
}
void SDL3GPUShader::setVSync(bool vsync) {
vsync_ = vsync;
if (device_ != nullptr && window_ != nullptr) {
SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, vsync_ ? SDL_GPU_PRESENTMODE_VSYNC : SDL_GPU_PRESENTMODE_IMMEDIATE);
SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, bestPresentMode(vsync_));
}
}

2
source/core/rendering/sdl3gpu/sdl3gpu_shader.hpp
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@@ -141,6 +141,8 @@ namespace Rendering {
auto reinitTexturesAndBuffer() -> bool; // Recrea scene_texture_ y upload_buffer_
auto recreateScaledTexture(int factor) -> bool; // Recrea scaled_texture_ para factor dado
static auto calcSsFactor(float zoom) -> int; // Primer múltiplo de 3 >= zoom (mín 3)
// Devuelve el mejor present mode disponible: IMMEDIATE > MAILBOX > VSYNC
[[nodiscard]] auto bestPresentMode(bool vsync) const -> SDL_GPUPresentMode;
SDL_Window* window_ = nullptr;
SDL_GPUDevice* device_ = nullptr;