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[client] use glFinish to prevent buffering and re-enable by default

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This commit is contained in:
Geoffrey McRae 2018-05-21 23:16:16 +10:00
parent 116926f7c0
commit b3aadccfc4
1 changed files with 2 additions and 26 deletions
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28
client/renderers/opengl.c
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@ -40,9 +40,6 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#define MOUSE_TEXTURE 1 #define MOUSE_TEXTURE 1
#define TEXTURE_COUNT 2 #define TEXTURE_COUNT 2
static PFNGLXGETVIDEOSYNCSGIPROC glXGetVideoSyncSGI = NULL;
static PFNGLXWAITVIDEOSYNCSGIPROC glXWaitVideoSyncSGI = NULL;
struct Options struct Options
{ {
bool mipmap; bool mipmap;
@ -55,7 +52,7 @@ static struct Options defaultOptions =
{ {
.mipmap = true, .mipmap = true,
.vsync = true, .vsync = true,
.preventBuffer = false, .preventBuffer = true,
.amdPinnedMem = true, .amdPinnedMem = true,
}; };
@ -99,7 +96,6 @@ struct Inst
void * decoderFrames[BUFFER_COUNT]; void * decoderFrames[BUFFER_COUNT];
GLuint textures[TEXTURE_COUNT]; GLuint textures[TEXTURE_COUNT];
uint gpuFrameCount;
bool fpsTexture; bool fpsTexture;
uint64_t lastFrameTime; uint64_t lastFrameTime;
uint64_t renderTime; uint64_t renderTime;
@ -165,19 +161,6 @@ bool opengl_initialize(void * opaque, Uint32 * sdlFlags)
if (!this) if (!this)
return false; return false;
if (!glXGetVideoSyncSGI)
{
glXGetVideoSyncSGI = (PFNGLXGETVIDEOSYNCSGIPROC )glXGetProcAddress((const GLubyte *)"glXGetVideoSyncSGI" );
glXWaitVideoSyncSGI = (PFNGLXWAITVIDEOSYNCSGIPROC)glXGetProcAddress((const GLubyte *)"glXWaitVideoSyncSGI");
if (!glXGetVideoSyncSGI || !glXWaitVideoSyncSGI)
{
glXGetVideoSyncSGI = NULL;
DEBUG_ERROR("Failed to get proc addresses");
return false;
}
}
*sdlFlags = SDL_WINDOW_OPENGL; *sdlFlags = SDL_WINDOW_OPENGL;
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
return true; return true;
@ -424,14 +407,8 @@ bool opengl_render(void * opaque, SDL_Window * window)
if (this->opt.preventBuffer) if (this->opt.preventBuffer)
{ {
unsigned int before, after;
glXGetVideoSyncSGI(&before);
SDL_GL_SwapWindow(window); SDL_GL_SwapWindow(window);
glFinish();
// wait for the swap to happen to ensure we dont buffer frames
glXGetVideoSyncSGI(&after);
if (before == after)
glXWaitVideoSyncSGI(1, 0, &before);
} }
else else
SDL_GL_SwapWindow(window); SDL_GL_SwapWindow(window);
@ -799,7 +776,6 @@ static bool configure(struct Inst * this, SDL_Window *window)
this->resizeWindow = true; this->resizeWindow = true;
this->drawStart = nanotime(); this->drawStart = nanotime();
glXGetVideoSyncSGI(&this->gpuFrameCount);
this->configured = true; this->configured = true;
this->reconfigure = false; this->reconfigure = false;