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Add MSAA support to OpenGL 1.1 (#640)

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This commit is contained in:
Anders Jenbo 2025-07-23 20:30:05 +02:00 committed by GitHub
parent a5a3c4ec83
commit a9db8d321e
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GPG Key ID: B5690EEEBB952194
3 changed files with 11 additions and 6 deletions
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7
miniwin/src/d3drm/backends/opengl1/renderer.cpp
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@ -16,7 +16,7 @@ static_assert(sizeof(GL11_BridgeTexCoord) == sizeof(TexCoord), "GL11_BridgeTexCo
static_assert(sizeof(GL11_BridgeSceneLight) == sizeof(SceneLight), "GL11_BridgeSceneLight is wrong size");
static_assert(sizeof(GL11_BridgeSceneVertex) == sizeof(D3DRMVERTEX), "GL11_BridgeSceneVertex is wrong size");
Direct3DRMRenderer* OpenGL1Renderer::Create(DWORD width, DWORD height)
Direct3DRMRenderer* OpenGL1Renderer::Create(DWORD width, DWORD height, DWORD msaaSamples)
{
// We have to reset the attributes here after having enumerated the
// OpenGL ES 2.0 renderer, or else SDL gets very confused by SDL_GL_DEPTH_SIZE
@ -28,6 +28,11 @@ Direct3DRMRenderer* OpenGL1Renderer::Create(DWORD width, DWORD height)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
if (msaaSamples > 1) {
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, msaaSamples);
}
if (!DDWindow) {
SDL_Log("No window handler");
return nullptr;

4
miniwin/src/d3drm/d3drmrenderer.cpp
View File

@ -41,7 +41,7 @@ Direct3DRMRenderer* CreateDirect3DRMRenderer(
#endif
#ifdef USE_OPENGL1
if (SDL_memcmp(guid, &OpenGL1_GUID, sizeof(GUID)) == 0) {
return OpenGL1Renderer::Create(DDSDesc.dwWidth, DDSDesc.dwHeight);
return OpenGL1Renderer::Create(DDSDesc.dwWidth, DDSDesc.dwHeight, d3d->GetMSAASamples());
}
#endif
#ifdef USE_CITRO3D
@ -66,7 +66,7 @@ void Direct3DRMRenderer_EnumDevices(const IDirect3DMiniwin* d3d, LPD3DENUMDEVICE
OpenGLES3Renderer_EnumDevice(d3d, cb, ctx);
#endif
#ifdef USE_OPENGL1
OpenGL1Renderer_EnumDevice(cb, ctx);
OpenGL1Renderer_EnumDevice(d3d, cb, ctx);
#endif
#ifdef USE_CITRO3D
Citro3DRenderer_EnumDevice(cb, ctx);

6
miniwin/src/internal/d3drmrenderer_opengl1.h
View File

@ -11,7 +11,7 @@ DEFINE_GUID(OpenGL1_GUID, 0x682656F3, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x
class OpenGL1Renderer : public Direct3DRMRenderer {
public:
static Direct3DRMRenderer* Create(DWORD width, DWORD height);
static Direct3DRMRenderer* Create(DWORD width, DWORD height, DWORD msaaSamples);
OpenGL1Renderer(DWORD width, DWORD height, SDL_GLContext context);
~OpenGL1Renderer() override;
@ -54,9 +54,9 @@ class OpenGL1Renderer : public Direct3DRMRenderer {
ViewportTransform m_viewportTransform;
};
inline static void OpenGL1Renderer_EnumDevice(LPD3DENUMDEVICESCALLBACK cb, void* ctx)
inline static void OpenGL1Renderer_EnumDevice(const IDirect3DMiniwin* d3d, LPD3DENUMDEVICESCALLBACK cb, void* ctx)
{
Direct3DRMRenderer* device = OpenGL1Renderer::Create(640, 480);
Direct3DRMRenderer* device = OpenGL1Renderer::Create(640, 480, d3d->GetMSAASamples());
if (!device) {
return;
}