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Pass white balance and exposure compensation to webcam emulator

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Using fake camera implementation for WB/exposure, implement the same functionality
on frames comming from webcam emulator. Note that due to heavy computations that
are involved in implementing this, we will do all that math in the emulator
application in order to provide a decent performance.

Change-Id: Id6c37b472860674c91e6ca37522fc61f497515a3
This commit is contained in:
Vladimir Chtchetkine
2011-11-23 11:26:11 -08:00
parent 629fb72e6f
commit 031b92f4c7
6 changed files with 52 additions and 43 deletions
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11
tools/emulator/system/camera/QemuClient.cpp
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@@ -503,14 +503,19 @@ status_t CameraQemuClient::queryStop()
status_t CameraQemuClient::queryFrame(void* vframe,
void* pframe,
size_t vframe_size,
size_t pframe_size)
size_t pframe_size,
float r_scale,
float g_scale,
float b_scale,
float exposure_comp)
{
ALOGV("%s", __FUNCTION__);
char query_str[256];
snprintf(query_str, sizeof(query_str), "%s video=%d preview=%d",
snprintf(query_str, sizeof(query_str), "%s video=%d preview=%d whiteb=%g,%g,%g expcomp=%g",
mQueryFrame, (vframe && vframe_size) ? vframe_size : 0,
(pframe && pframe_size) ? pframe_size : 0);
(pframe && pframe_size) ? pframe_size : 0, r_scale, g_scale, b_scale,
exposure_comp);
QemuQuery query(query_str);
doQuery(&query);
const status_t res = query.getCompletionStatus();