pcsxr-1.9.92

1 files changed, 71 insertions, 0 deletions

diff --git a/plugins/dfxvideo/swap.h b/plugins/dfxvideo/swap.h
new file mode 100644
index 0000000..3f7ac21
--- /dev/null
+++ b/plugins/dfxvideo/swap.h
@@ -0,0 +1,71 @@
+#include <stdint.h>
+
+// byteswappings
+
+#define SWAP16(x) ({ uint16_t y=(x); (((y)>>8 & 0xff) | ((y)<<8 & 0xff00)); })
+#define SWAP32(x) ({ uint32_t y=(x); (((y)>>24 & 0xfful) | ((y)>>8 & 0xff00ul) | ((y)<<8 & 0xff0000ul) | ((y)<<24 & 0xff000000ul)); })
+
+#ifdef __BIG_ENDIAN__
+
+// big endian config
+#define HOST2LE32(x) SWAP32(x)
+#define HOST2BE32(x) (x)
+#define LE2HOST32(x) SWAP32(x)
+#define BE2HOST32(x) (x)
+
+#define HOST2LE16(x) SWAP16(x)
+#define HOST2BE16(x) (x)
+#define LE2HOST16(x) SWAP16(x)
+#define BE2HOST16(x) (x)
+
+#else
+
+// little endian config
+#define HOST2LE32(x) (x)
+#define HOST2BE32(x) SWAP32(x)
+#define LE2HOST32(x) (x)
+#define BE2HOST32(x) SWAP32(x)
+
+#define HOST2LE16(x) (x)
+#define HOST2BE16(x) SWAP16(x)
+#define LE2HOST16(x) (x)
+#define BE2HOST16(x) SWAP16(x)
+
+#endif
+
+#define GETLEs16(X) ((int16_t)GETLE16((uint16_t *)X))
+#define GETLEs32(X) ((int16_t)GETLE32((uint16_t *)X))
+
+#if defined(__PPC__) && defined(__BIG_ENDIAN__)
+
+// GCC style
+static __inline__ uint16_t GETLE16(uint16_t *ptr) {
+    uint16_t ret; __asm__ ("lhbrx %0, 0, %1" : "=r" (ret) : "r" (ptr));
+    return ret;
+}
+static __inline__ uint32_t GETLE32(uint32_t *ptr) {
+    uint32_t ret;
+    __asm__ ("lwbrx %0, 0, %1" : "=r" (ret) : "r" (ptr));
+    return ret;
+}
+static __inline__ uint32_t GETLE16D(uint32_t *ptr) {
+    uint32_t ret;
+    __asm__ ("lwbrx %0, 0, %1\n"
+             "rlwinm %0, %0, 16, 0, 31" : "=r" (ret) : "r" (ptr));
+    return ret;
+}
+
+static __inline__ void PUTLE16(uint16_t *ptr, uint16_t val) {
+    __asm__ ("sthbrx %0, 0, %1" : : "r" (val), "r" (ptr) : "memory");
+}
+static __inline__ void PUTLE32(uint32_t *ptr, uint32_t val) {
+    __asm__ ("stwbrx %0, 0, %1" : : "r" (val), "r" (ptr) : "memory");
+}
+
+#else
+#define GETLE16(X) LE2HOST16(*(uint16_t *)X)
+#define GETLE32(X) LE2HOST32(*(uint32_t *)X)
+#define GETLE16D(X) ({uint32_t val = GETLE32(X); (val<<16 | val >> 16);})
+#define PUTLE16(X, Y) do{*((uint16_t *)X)=HOST2LE16((uint16_t)Y);}while(0)
+#define PUTLE32(X, Y) do{*((uint32_t *)X)=HOST2LE16((uint32_t)Y);}while(0)
+#endif