cpp/openttd-patchpack/source Changeset - r25261:3b1b500a06d6

Changeset - r25261:3b1b500a06d6

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Michael Lutz - 3 years ago 2021-04-24 22:43:38
michi@icosahedron.de

Fix: [OpenGL] Main loop expects to start with the video buffer unmapped. (#9100)

3 files changed with 5 insertions and 0 deletions:

src/video/opengl.cpp

src/video/sdl2_opengl_v.cpp

src/video/win32_v.cpp

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src/video/opengl.cpp

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@@ @@ -1154,6 +1154,7 @@ void *OpenGLBackend::GetVideoBuffer() @@
 #endif
 	if (!this->persistent_mapping_supported) {
 		assert(this->vid_buffer == nullptr);
 		_glBindBuffer(GL_PIXEL_UNPACK_BUFFER, this->vid_pbo);
 		this->vid_buffer = _glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_READ_WRITE);
 	} else if (this->vid_buffer == nullptr) {

src/video/sdl2_opengl_v.cpp

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@@ @@ -74,6 +74,8 @@ const char *VideoDriver_SDL_OpenGL::Star @@
 		this->Stop();
 		return "Can't get pointer to screen buffer";
+	}
 	/* Main loop expects to start with the buffer unmapped. */
 	this->ReleaseVideoPointer();
 	return nullptr;
+}

src/video/win32_v.cpp

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@@ @@ -1311,6 +1311,8 @@ const char *VideoDriver_Win32OpenGL::Sta @@
 		_cur_resolution = old_res;
 		return "Can't get pointer to screen buffer";
+	}
 	/* Main loop expects to start with the buffer unmapped. */
 	this->ReleaseVideoPointer();
 	MarkWholeScreenDirty();

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