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403 results
Show changes
Commits on Source (4)
......@@ -119,6 +119,69 @@ typedef struct vout_display_sys_t {
#pragma mark -
#pragma mark OpenGL context helpers
// kCGLRenderer* enum value define card value, but family is enough here.
// However they follow some pattern by familly.
#define kRendererIntelFamilyMask 0x00024000
/*
* GL API does not provide a way to know if a device is a lowpower one.
* We could make some guess here:
* On a MacBookPro (intel):
* - GeForce and Radeon card could be discrete or external.
* - Intel could be integrated or external.
* To be check MacPro or MacMini or ARM ones.
*/
static bool vlc_IsLowPowerDevice(GLint renderer_id) {
int renderer_vendor = renderer_id & kCGLRendererIDMatchingMask;
// Consider Intel familly card as low power devices.
return renderer_vendor == kCGLRendererIntel900ID ||
renderer_vendor == kCGLRendererIntelX3100ID ||
renderer_vendor == kCGLRendererIntelHDID ||
renderer_vendor == kCGLRendererIntelHD4000ID ||
renderer_vendor == kCGLRendererIntelHD5000ID;
}
/*
* Search for a low power device.
* Without proper API (like Metal), here we try to look on all the available
* renderer and filter them.
* We are looking for the one attached to the main display, accelerated, and
* with low power consumption.
* Without any match, we let CGLChoosePixelFormat/CGLCreateContext do as before.
*/
static GLint vlc_SearchGLRendererId() {
CGLRendererInfoObj renderer_info = NULL;
GLint renderer_count = 0;
if (CGLQueryRendererInfo((GLuint)-1, &renderer_info, &renderer_count) !=
kCGLNoError)
return -1;
GLint best_match = -1;
for (GLint i = 0; i < renderer_count && best_match == -1; ++i) {
GLint renderer_id = -1;
if (CGLDescribeRenderer(renderer_info, i, kCGLRPRendererID,
&renderer_id) != kCGLNoError)
break;
GLint accelerated = 0;
if (CGLDescribeRenderer(renderer_info, i, kCGLRPAccelerated,
&accelerated) != kCGLNoError)
break;
if (!accelerated)
continue; // avoid not accelerated device
GLint display = -1;
if (CGLDescribeRenderer(renderer_info, i, kCGLRPDisplayMask, &display) !=
kCGLNoError)
break;
CGDirectDisplayID display_id = CGOpenGLDisplayMaskToDisplayID(display);
if (display_id != CGMainDisplayID())
continue;
if (vlc_IsLowPowerDevice(renderer_id))
best_match = renderer_id;
}
CGLDestroyRendererInfo(renderer_info);
return best_match;
}
/**
* Create a new CGLContextObj for use by VLC
* This function may try various pixel formats until it finds a suitable/compatible
......@@ -132,7 +195,10 @@ CGLContextObj vlc_CreateCGLContext()
CGLPixelFormatObj pix;
CGLContextObj ctx;
CGLPixelFormatAttribute attribs[12] = {
GLint renderer_id = vlc_SearchGLRendererId();
CGLPixelFormatAttribute attribs[15] = {
kCGLPFAAllRenderers,
kCGLPFAAllowOfflineRenderers,
kCGLPFADoubleBuffer,
kCGLPFAAccelerated,
......@@ -148,6 +214,12 @@ CGLContextObj vlc_CreateCGLContext()
0
};
// A low power renderer was found, ask to use it.
if (renderer_id != -1) {
attribs[12] = kCGLPFARendererID;
attribs[13] = renderer_id;
attribs[14] = 0;
}
err = CGLChoosePixelFormat(attribs, &pix, &npix);
if (err != kCGLNoError || pix == NULL) {
return NULL;
......