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emulator opengl: moved gralloc buffer handle struct to be shared.

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We need to share the cb_hande_t between gralloc/EGL/GLES, moved it
into the opengl system common lib.
Also added eglSwapBuffers implementation.

Change-Id: Ia461a48c273af42293aafcf084e457adf03cbed3
This commit is contained in:
Stas Gurtovoy
2011-05-02 14:56:33 +03:00
committed by Guy Zadikario
parent dd0a3777bc
commit c36ac6ed2f
5 changed files with 264 additions and 100 deletions
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71
tools/emulator/opengl/system/gralloc/gralloc.cpp
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@@ -13,9 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <hardware/hardware.h>
#include <hardware/gralloc.h>
#include <cutils/native_handle.h>
#include "gralloc_cb.h"
#include <pthread.h>
#ifdef HAVE_ANDROID_OS // just want PAGE_SIZE define
# include <asm/page.h>
@@ -30,7 +28,6 @@
#include "glUtils.h"
#include <cutils/log.h>
#define BUFFER_HANDLE_MAGIC ((int)0xabfabfab)
//
// our private gralloc module structure
@@ -62,72 +59,6 @@ struct fb_device_t {
framebuffer_device_t device;
};
#define CB_HANDLE_NUM_INTS(nfds) ((sizeof(cb_handle_t) - (nfds)*sizeof(int)) / sizeof(int))
//
// Our buffer handle structure
//
struct cb_handle_t : public native_handle {
cb_handle_t(int p_fd, int p_ashmemSize, int p_usage,
int p_width, int p_height, int p_glFormat) :
fd(p_fd),
magic(BUFFER_HANDLE_MAGIC),
usage(p_usage),
width(p_width),
height(p_height),
glFormat(p_glFormat),
ashmemSize(p_ashmemSize),
ashmemBase(NULL),
ashmemBasePid(0),
mappedPid(0),
lockedLeft(0),
lockedTop(0),
lockedWidth(0),
lockedHeight(0),
hostHandle(0)
{
version = sizeof(native_handle);
numFds = 1;
numInts = CB_HANDLE_NUM_INTS(numFds);
}
~cb_handle_t() {
magic = 0;
}
bool validate() const {
return (version == sizeof(native_handle) &&
magic == BUFFER_HANDLE_MAGIC &&
numInts == CB_HANDLE_NUM_INTS(1) &&
numFds == 1);
}
bool canBePosted() {
return (0 != (usage & GRALLOC_USAGE_HW_FB));
}
// file-descriptors
int fd; // ashmem fd (-1 of ashmem region did not allocated, i.e. no SW access needed)
// ints
int magic; // magic number in order to validate a pointer to be a cb_handle_t
int usage; // usage bits the buffer was created with
int width; // buffer width
int height; // buffer height
int glFormat; // OpenGL format enum used for host h/w color buffer
int ashmemSize; // ashmem region size for the buffer (0 unless is HW_FB buffer or
// s/w access is needed)
int ashmemBase; // CPU address of the mapped ashmem region
int ashmemBasePid; // process id which mapped the ashmem region
int mappedPid; // process id which succeeded gralloc_register call
int lockedLeft; // region of buffer locked for s/w write
int lockedTop;
int lockedWidth;
int lockedHeight;
uint32_t hostHandle;
};
static int map_buffer(cb_handle_t *cb, void **vaddr)
{
if (cb->fd < 0 || cb->ashmemSize <= 0) {