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[all] expose the FrameBuffer struct for correct sizeof calculations

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This commit is contained in:
Geoffrey McRae
2020-01-13 19:30:49 +11:00
parent 9846762991
commit 17e05c6fd5
16 changed files with 40 additions and 39 deletions
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17
common/include/common/framebuffer.h
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@@ -23,26 +23,33 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <stdbool.h>
#include <stdint.h>
typedef struct stFrameBuffer * FrameBuffer;
typedef struct stFrameBuffer
{
uint64_t wp;
uint8_t data[0];
}
FrameBuffer;
typedef bool (*FrameBufferReadFn)(void * opaque, const void * src, size_t size);
/**
* Read data from the KVMFRFrame into the dst buffer
*/
bool framebuffer_read(const FrameBuffer frame, void * dst, size_t size);
bool framebuffer_read(const FrameBuffer * frame, void * dst, size_t size);
/**
* Read data from the KVMFRFrame using a callback
*/
bool framebuffer_read_fn(const FrameBuffer frame, FrameBufferReadFn fn, size_t size, void * opaque);
bool framebuffer_read_fn(const FrameBuffer * frame, FrameBufferReadFn fn, size_t size, void * opaque);
/**
* Prepare the framebuffer for writing
*/
void framebuffer_prepare(const FrameBuffer frame);
void framebuffer_prepare(FrameBuffer * frame);
/**
* Write data from the src buffer into the KVMFRFrame
*/
bool framebuffer_write(const FrameBuffer frame, const void * src, size_t size);
bool framebuffer_write(FrameBuffer * frame, const void * src, size_t size);

14
common/src/framebuffer.c
View File

@@ -23,13 +23,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <string.h>
#define FB_CHUNK_SIZE 1024
struct stFrameBuffer
{
uint64_t wp;
uint8_t data[0];
};
bool framebuffer_read(const FrameBuffer frame, void * dst, size_t size)
bool framebuffer_read(const FrameBuffer * frame, void * dst, size_t size)
{
uint8_t *d = (uint8_t*)dst;
uint64_t rp = 0;
@@ -51,7 +45,7 @@ bool framebuffer_read(const FrameBuffer frame, void * dst, size_t size)
return true;
}
bool framebuffer_read_fn(const FrameBuffer frame, FrameBufferReadFn fn, size_t size, void * opaque)
bool framebuffer_read_fn(const FrameBuffer * frame, FrameBufferReadFn fn, size_t size, void * opaque)
{
uint64_t rp = 0;
while(rp < size)
@@ -76,12 +70,12 @@ bool framebuffer_read_fn(const FrameBuffer frame, FrameBufferReadFn fn, size_t s
/**
* Prepare the framebuffer for writing
*/
void framebuffer_prepare(const FrameBuffer frame)
void framebuffer_prepare(FrameBuffer * frame)
{
frame->wp = 0;
}
bool framebuffer_write(FrameBuffer frame, const void * src, size_t size)
bool framebuffer_write(FrameBuffer * frame, const void * src, size_t size)
{
/* copy in chunks */
while(size)