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Disables GL storage buffers on Mesa.

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This is a workaround to avoid disabling GL storage buffers completely.
Because they might not work or might lead to a decreased performance.
We need to investigate that further when we have a local reproduce.
This commit is contained in:
Vladislav Belov
2025-01-28 01:40:47 +01:00
parent ec6ed7f224
commit 635a268dd9
1 changed files with 7 additions and 0 deletions
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source/renderer/backend/gl/Device.cpp
+7
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@@ -451,9 +451,16 @@ std::unique_ptr<IDevice> CDevice::Create(SDL_Window* window, const bool arb)
GLint maxStorageBufferSize{0};
if (ogl_HaveExtension("GL_ARB_shader_storage_buffer_object"))
glGetIntegerv(GL_MAX_SHADER_STORAGE_BLOCK_SIZE, &maxStorageBufferSize);
// Storage buffers might not work correctly on some Mesa drivers or might have
// decreased performance. We need to investigate it further but for now we
// disable storage buffers on Mesa.
const bool disableStorageForMesa{
device->m_Name.find("Mesa") != std::string::npos
|| device->m_DriverInformation.find("Mesa") != std::string::npos};
capabilities.storage =
capabilities.computeShaders && maxStorageBufferSize > 0
&& static_cast<size_t>(maxStorageBufferSize) >= 128 * MiB
&& !disableStorageForMesa
&& ogl_HaveExtension("GL_ARB_uniform_buffer_object")
&& ogl_HaveExtension("GL_ARB_shader_storage_buffer_object")
&& ogl_HaveExtension("GL_ARB_half_float_vertex")