Revert "exynos: gralloc: implement gralloc_lock_ycbcr"

This format is not SW readable

This reverts commit 25ffbfe5e8b51f392fafc1bffb16b6633a8ba3df.

Bug: 19179288
Change-Id: Icbfc098f4a079f32a3809ab9ef9bfcbc509a89ee

1 files changed, 5 insertions, 97 deletions

diff --git a/gralloc/mapper.cpp b/gralloc/mapper.cpp
index 190a7a7..1a70973 100644
--- a/gralloc/mapper.cpp
+++ b/gralloc/mapper.cpp
@@ -31,7 +31,6 @@
 #include <hardware/gralloc.h>
 
 #include "gralloc_priv.h"
-#include "exynos_format.h"
 
 #include <ion/ion.h>
 #include <linux/ion.h>
@@ -58,59 +57,16 @@ static int gralloc_unmap(gralloc_module_t const* module, buffer_handle_t handle)
 {
     private_handle_t* hnd = (private_handle_t*)handle;
 
-    if (hnd->base != NULL && munmap(hnd->base, hnd->size) < 0) {
+    if (!hnd->base)
+        return 0;
+
+    if (munmap(hnd->base, hnd->size) < 0) {
         ALOGE("%s :could not unmap %s %p %d", __func__, strerror(errno),
               hnd->base, hnd->size);
     }
-    hnd->base = NULL;
-    if (hnd->base1 != NULL && hnd->format == HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED) {
-        // unmap plane-2 of mapped NV12 TILED format
-        size_t chroma_vstride = ALIGN(hnd->height / 2, 32);
-        size_t chroma_size = chroma_vstride * hnd->stride;
-        if (munmap(hnd->base1, chroma_size) < 0) {
-            ALOGE("%s :could not unmap %s %p %zd", __func__, strerror(errno),
-                  hnd->base1, chroma_size);
-        }
-        hnd->base1 = NULL;
-    }
     ALOGV("%s: base %p %d %d %d %d\n", __func__, hnd->base, hnd->size,
           hnd->width, hnd->height, hnd->stride);
-    return 0;
-}
-
-
-static int gralloc_map_yuv(gralloc_module_t const* module, buffer_handle_t handle)
-{
-    private_handle_t* hnd = (private_handle_t*)handle;
-
-    // only support NV12 TILED format
-    if (hnd->format != HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED) {
-        return -EINVAL;
-    }
-
-    size_t chroma_vstride = ALIGN(hnd->height / 2, 32);
-    size_t chroma_size = chroma_vstride * hnd->stride;
-    ALOGI("map_yuv: size=%d/%zu", hnd->size, chroma_size);
-
-    if (hnd->base == NULL) {
-        int err = gralloc_map(module, handle);
-        if (err != 0) {
-            return err;
-        }
-    }
-
-    // map plane-2 for NV12 TILED format
-    void* mappedAddress = mmap(0, chroma_size, PROT_READ|PROT_WRITE, MAP_SHARED,
-                               hnd->fd1, 0);
-    if (mappedAddress == MAP_FAILED) {
-        ALOGE("%s: could not mmap %s", __func__, strerror(errno));
-        gralloc_unmap(module, handle);
-        return -errno;
-    }
-
-    ALOGV("%s: chroma %p %d %d %d %d\n", __func__, mappedAddress, hnd->size,
-          hnd->width, hnd->height, hnd->stride);
-    hnd->base1 = mappedAddress;
+    hnd->base = 0;
     return 0;
 }
 
@@ -201,54 +157,6 @@ int gralloc_lock(gralloc_module_t const* module,
     return 0;
 }
 
-int gralloc_lock_ycbcr(gralloc_module_t const* module,
-                 buffer_handle_t handle, int usage,
-                 int l, int t, int w, int h,
-                 struct android_ycbcr *ycbcr)
-{
-    // This is called when a YUV buffer is being locked for software
-    // access. In this implementation we have nothing to do since
-    // no synchronization with the HW is needed.
-    // Typically this is used to wait for the h/w to finish with
-    // this buffer if relevant. The data cache may need to be
-    // flushed or invalidated depending on the usage bits and the
-    // hardware.
-
-    if (private_handle_t::validate(handle) < 0)
-        return -EINVAL;
-
-    private_handle_t* hnd = (private_handle_t*)handle;
-    ALOGV("lock_ycbcr for fmt=%d %dx%d %dx%d %d", hnd->format, hnd->width, hnd->height,
-          hnd->stride, hnd->vstride, hnd->size);
-    switch (hnd->format) {
-        case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
-        {
-            int err = 0;
-            if (hnd->base1 == NULL || hnd->base == NULL) {
-                err = gralloc_map_yuv(module, hnd);
-            }
-            if (err == 0) {
-                ycbcr->y  = (void*)hnd->base;
-                ycbcr->cb = (void*)hnd->base1;
-                ycbcr->cr = (void*)((uint8_t *)hnd->base + 1);
-                ycbcr->ystride = hnd->stride;
-                ycbcr->cstride = hnd->stride;
-                ycbcr->chroma_step = 2;
-                memset(ycbcr->reserved, 0, sizeof(ycbcr->reserved));
-            }
-            return err;
-        }
-        default:
-            return -EINVAL;
-    }
-}
-
-int gralloc_perform(struct gralloc_module_t const* module, int operation, ... )
-{
-    // dummy implementation required to implement lock_ycbcr
-    return -EINVAL;
-}
-
 int gralloc_unlock(gralloc_module_t const* module, 
                    buffer_handle_t handle)
 {