c36ac6ed2f
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
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
#ifndef __GRALLOC_CB_H__
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#define __GRALLOC_CB_H__
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#include <hardware/hardware.h>
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#include <hardware/gralloc.h>
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#include <cutils/native_handle.h>
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#define BUFFER_HANDLE_MAGIC ((int)0xabfabfab)
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#define CB_HANDLE_NUM_INTS(nfds) ((sizeof(cb_handle_t) - (nfds)*sizeof(int)) / sizeof(int))
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//
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// Our buffer handle structure
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//
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struct cb_handle_t : public native_handle {
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cb_handle_t(int p_fd, int p_ashmemSize, int p_usage,
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int p_width, int p_height, int p_glFormat) :
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fd(p_fd),
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magic(BUFFER_HANDLE_MAGIC),
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usage(p_usage),
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width(p_width),
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height(p_height),
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glFormat(p_glFormat),
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ashmemSize(p_ashmemSize),
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ashmemBase(NULL),
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ashmemBasePid(0),
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mappedPid(0),
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lockedLeft(0),
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lockedTop(0),
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lockedWidth(0),
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lockedHeight(0),
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hostHandle(0)
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{
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version = sizeof(native_handle);
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numFds = 1;
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numInts = CB_HANDLE_NUM_INTS(numFds);
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}
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~cb_handle_t() {
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magic = 0;
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}
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bool validate() const {
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return (version == sizeof(native_handle) &&
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magic == BUFFER_HANDLE_MAGIC &&
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numInts == CB_HANDLE_NUM_INTS(1) &&
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numFds == 1);
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}
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bool canBePosted() {
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return (0 != (usage & GRALLOC_USAGE_HW_FB));
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}
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// file-descriptors
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int fd; // ashmem fd (-1 of ashmem region did not allocated, i.e. no SW access needed)
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// ints
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int magic; // magic number in order to validate a pointer to be a cb_handle_t
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int usage; // usage bits the buffer was created with
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int width; // buffer width
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int height; // buffer height
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int glFormat; // OpenGL format enum used for host h/w color buffer
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int ashmemSize; // ashmem region size for the buffer (0 unless is HW_FB buffer or
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// s/w access is needed)
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int ashmemBase; // CPU address of the mapped ashmem region
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int ashmemBasePid; // process id which mapped the ashmem region
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int mappedPid; // process id which succeeded gralloc_register call
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int lockedLeft; // region of buffer locked for s/w write
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int lockedTop;
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int lockedWidth;
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int lockedHeight;
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uint32_t hostHandle;
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};
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#endif //__GRALLOC_CB_H__
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