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| author | Mathias Agopian <mathias@google.com> | 2011-11-16 20:59:19 -0800 |
|---|---|---|
| committer | Android (Google) Code Review <android-gerrit@google.com> | 2011-11-16 20:59:19 -0800 |
| commit | 190f057048db376d0c6fadd979ba307afde11b36 (patch) | |
| tree | 893c6eaf82bdc9213a19769695fa471bfbb59205 /libhwcomposer | |
| parent | e5315c678872c64f0f3064d54ea2f006540917ed (diff) | |
| parent | 85a2e2f0284ce5b5cc79b2db775d32cf03078029 (diff) | |
| download | device_samsung_crespo-190f057048db376d0c6fadd979ba307afde11b36.zip device_samsung_crespo-190f057048db376d0c6fadd979ba307afde11b36.tar.gz device_samsung_crespo-190f057048db376d0c6fadd979ba307afde11b36.tar.bz2 | |
Merge "don't call eglSwapBufferss() when its not needed." into ics-mr1
Diffstat (limited to 'libhwcomposer')
| -rw-r--r-- | libhwcomposer/SecHWC.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/libhwcomposer/SecHWC.cpp b/libhwcomposer/SecHWC.cpp index 6fe39a0..0f81277 100644 --- a/libhwcomposer/SecHWC.cpp +++ b/libhwcomposer/SecHWC.cpp @@ -293,6 +293,8 @@ static int hwc_set(hwc_composer_device_t *dev, struct sec_rect dst_rect; + bool need_swap_buffers = ctx->num_of_fb_layer > 0; + /* * H/W composer documentation states: * There is an implicit layer containing opaque black @@ -312,13 +314,16 @@ static int hwc_set(hwc_composer_device_t *dev, glClearColor(0, 0, 0, 0); glClear(GL_COLOR_BUFFER_BIT); glEnable(GL_SCISSOR_TEST); + need_swap_buffers = true; } ctx->num_of_fb_layer_prev = ctx->num_of_fb_layer; - EGLBoolean sucess = eglSwapBuffers((EGLDisplay)dpy, (EGLSurface)sur); - if (!sucess) { - return HWC_EGL_ERROR; + if (need_swap_buffers || !list) { + EGLBoolean sucess = eglSwapBuffers((EGLDisplay)dpy, (EGLSurface)sur); + if (!sucess) { + return HWC_EGL_ERROR; + } } if (!list) { |