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Diffstat (limited to 'backends/platform/psp/memory.cpp')
-rw-r--r--backends/platform/psp/memory.cpp251
1 files changed, 125 insertions, 126 deletions
diff --git a/backends/platform/psp/memory.cpp b/backends/platform/psp/memory.cpp
index 0dfc15f293..83ba36767a 100644
--- a/backends/platform/psp/memory.cpp
+++ b/backends/platform/psp/memory.cpp
@@ -26,6 +26,7 @@
#include "common/scummsys.h"
#include "common/singleton.h"
#include "backends/platform/psp/psppixelformat.h"
+#define PSP_INCLUDE_SWAP
#include "backends/platform/psp/memory.h"
// Class Copier --------------------------------------------------------------------------
@@ -99,96 +100,6 @@ void PspMemory::copy(byte *dst, const byte *src, uint32 bytes) {
#endif
}
-void PspMemory::testCopy(const byte *debugDst, const byte *debugSrc, uint32 debugBytes) {
-
- bool mismatch = false;
- PSP_INFO_PRINT("testing fastCopy...");
-
- for (uint32 i = 0; i < debugBytes; i++) {
- if (debugDst[i] != debugSrc[i]) {
- if (!mismatch) {
- PSP_INFO_PRINT("**** mismatch in copy! ****\n");
- PSP_INFO_PRINT("dst[%p], src[%p], bytes[%u]\n", debugDst, debugSrc, debugBytes);
- mismatch = true;
- }
- PSP_INFO_PRINT("[%d]%x!=%x ", i, debugSrc[i], debugDst[i]);
- }
- }
- if (mismatch) {
- PSP_INFO_PRINT("\n");
- } else {
- PSP_INFO_PRINT("ok\n");
- }
-}
-
-//
-// used to swap red and blue
-void PspMemory::swap(uint16 *dst16, const uint16 *src16, uint32 bytes, PSPPixelFormat &format) {
- DEBUG_ENTER_FUNC();
-
-#ifdef TEST_MEMORY_COPY
- uint32 debugBytes = bytes;
- const uint16 *debugDst = dst16, *debugSrc = src16;
-#endif
-
- // align the destination pointer first
- uint32 prefixDst = (((uint32)dst16) & 0x3); // for swap, we can only have 2 or 0 as our prefix
-
- if (prefixDst) {
- bytes -= prefixDst; // remember we assume bytes > 4
- *dst16++ = format.swapRedBlue16(*src16++);
-
- if (bytes < MIN_AMOUNT_FOR_COMPLEX_COPY) { // check if it's worthwhile to continue
- swap16(dst16, src16, bytes, format);
-
-#ifdef TEST_MEMORY_COPY
- testSwap(debugDst, debugSrc, debugBytes, format);
-#endif
- return;
- }
- }
-
- // check the source pointer alignment now
- uint32 alignSrc = (((uint32)src16) & 0x3);
-
- if (alignSrc) { // we'll need to realign our reads
- PSP_DEBUG_PRINT("misaligned copy of %u bytes from %p to %p\n", bytes, src16, dst16);
- swap32Misaligned((uint32 *)dst16, src16, bytes, format);
- } else {
- swap32Aligned((uint32 *)dst16, (const uint32 *)src16, bytes, format);
- }
-
-#ifdef TEST_MEMORY_COPY
- testSwap(debugDst, debugSrc, debugBytes, format);
-#endif
-
-}
-
-void PspMemory::testSwap(const uint16 *debugDst, const uint16 *debugSrc, uint32 debugBytes, PSPPixelFormat &format) {
-
- bool mismatch = false;
- PSP_INFO_PRINT("testing fastSwap...");
-
- uint32 shorts = debugBytes >> 1;
-
- for (uint32 i = 0; i < shorts; i++) {
- if (debugDst[i] != format.swapRedBlue16(debugSrc[i])) {
- if (!mismatch) {
- PSP_INFO_PRINT("**** mismatch in swap! ****\n");
- PSP_INFO_PRINT("dst[%p], src[%p], bytes[%u]\n", debugDst, debugSrc, debugBytes);
- mismatch = true;
- }
- PSP_INFO_PRINT("[%d]%x!=%x ", i<<1, format.swapRedBlue16(debugSrc[i]), debugDst[i]);
- }
- }
- if (mismatch) {
- PSP_INFO_PRINT("\n");
- } else {
- PSP_INFO_PRINT("ok\n");
- }
-}
-
-
void PspMemory::copy32Aligned(uint32 *dst32, const uint32 *src32, uint32 bytes) {
PSP_DEBUG_PRINT("copy32Aligned(): dst32[%p], src32[%p], bytes[%d]\n", dst32, src32, bytes);
@@ -257,41 +168,6 @@ void PspMemory::copy32Aligned(uint32 *dst32, const uint32 *src32, uint32 bytes)
}
}
-void PspMemory::swap32Aligned(uint32 *dst32, const uint32 *src32, uint32 bytes, PSPPixelFormat &format) {
- DEBUG_ENTER_FUNC();
- int words4 = bytes >> 4;
-
- // try blocks of 4 words at a time
- while (words4--) {
- uint32 a, b, c, d;
- a = format.swapRedBlue32(src32[0]);
- b = format.swapRedBlue32(src32[1]);
- c = format.swapRedBlue32(src32[2]);
- d = format.swapRedBlue32(src32[3]);
- dst32[0] = a;
- dst32[1] = b;
- dst32[2] = c;
- dst32[3] = d;
- dst32 += 4;
- src32 += 4;
- }
-
- uint32 bytesLeft = bytes & 0xF;
- uint32 words = bytesLeft >> 2;
-
- // now just do words
- while (words--) {
- *dst32++ = format.swapRedBlue32(*src32++);
- }
-
- bytesLeft = bytes & 0x3;
-
- if (bytesLeft) { // for swap, can only be 1 short left
- *((uint16 *)dst32) = format.swapRedBlue16(*((uint16 *)src32));
- }
-}
-
-
// More challenging -- need to shift
// Assume dst is aligned
void PspMemory::copy32Misaligned(uint32 *dst32, const byte *src, uint32 bytes, uint32 alignSrc) {
@@ -368,9 +244,132 @@ void PspMemory::copy32Misaligned(uint32 *dst32, const byte *src, uint32 bytes, u
}
}
+void PspMemory::testCopy(const byte *debugDst, const byte *debugSrc, uint32 debugBytes) {
+
+ bool mismatch = false;
+ PSP_INFO_PRINT("testing fastCopy...");
+
+ for (uint32 i = 0; i < debugBytes; i++) {
+ if (debugDst[i] != debugSrc[i]) {
+ if (!mismatch) {
+ PSP_INFO_PRINT("**** mismatch in copy! ****\n");
+ PSP_INFO_PRINT("dst[%p], src[%p], bytes[%u]\n", debugDst, debugSrc, debugBytes);
+ mismatch = true;
+ }
+ PSP_INFO_PRINT("[%d]%x!=%x ", i, debugSrc[i], debugDst[i]);
+ }
+ }
+ if (mismatch) {
+ PSP_INFO_PRINT("\n");
+ } else {
+ PSP_INFO_PRINT("ok\n");
+ }
+}
+
+//
+// used to swap red and blue
+void PspMemorySwap::swap(uint16 *dst16, const uint16 *src16, uint32 bytes, PSPPixelFormat &format) {
+ DEBUG_ENTER_FUNC();
+
+#ifdef TEST_MEMORY_COPY
+ uint32 debugBytes = bytes;
+ const uint16 *debugDst = dst16, *debugSrc = src16;
+#endif
+
+ // align the destination pointer first
+ uint32 prefixDst = (((uint32)dst16) & 0x3); // for swap, we can only have 2 or 0 as our prefix
+
+ if (prefixDst) {
+ bytes -= prefixDst; // remember we assume bytes > 4
+ *dst16++ = format.swapRedBlue16(*src16++);
+
+ if (bytes < MIN_AMOUNT_FOR_COMPLEX_COPY) { // check if it's worthwhile to continue
+ swap16(dst16, src16, bytes, format);
+
+#ifdef TEST_MEMORY_COPY
+ testSwap(debugDst, debugSrc, debugBytes, format);
+#endif
+ return;
+ }
+ }
+
+ // check the source pointer alignment now
+ uint32 alignSrc = (((uint32)src16) & 0x3);
+
+ if (alignSrc) { // we'll need to realign our reads
+ PSP_DEBUG_PRINT("misaligned copy of %u bytes from %p to %p\n", bytes, src16, dst16);
+ swap32Misaligned((uint32 *)dst16, src16, bytes, format);
+ } else {
+ swap32Aligned((uint32 *)dst16, (const uint32 *)src16, bytes, format);
+ }
+
+#ifdef TEST_MEMORY_COPY
+ testSwap(debugDst, debugSrc, debugBytes, format);
+#endif
+
+}
+
+void PspMemorySwap::testSwap(const uint16 *debugDst, const uint16 *debugSrc, uint32 debugBytes, PSPPixelFormat &format) {
+
+ bool mismatch = false;
+ PSP_INFO_PRINT("testing fastSwap...");
+
+ uint32 shorts = debugBytes >> 1;
+
+ for (uint32 i = 0; i < shorts; i++) {
+ if (debugDst[i] != format.swapRedBlue16(debugSrc[i])) {
+ if (!mismatch) {
+ PSP_INFO_PRINT("**** mismatch in swap! ****\n");
+ PSP_INFO_PRINT("dst[%p], src[%p], bytes[%u]\n", debugDst, debugSrc, debugBytes);
+ mismatch = true;
+ }
+ PSP_INFO_PRINT("[%d]%x!=%x ", i<<1, format.swapRedBlue16(debugSrc[i]), debugDst[i]);
+ }
+ }
+ if (mismatch) {
+ PSP_INFO_PRINT("\n");
+ } else {
+ PSP_INFO_PRINT("ok\n");
+ }
+}
+
+void PspMemorySwap::swap32Aligned(uint32 *dst32, const uint32 *src32, uint32 bytes, PSPPixelFormat &format) {
+ DEBUG_ENTER_FUNC();
+ int words4 = bytes >> 4;
+
+ // try blocks of 4 words at a time
+ while (words4--) {
+ uint32 a, b, c, d;
+ a = format.swapRedBlue32(src32[0]);
+ b = format.swapRedBlue32(src32[1]);
+ c = format.swapRedBlue32(src32[2]);
+ d = format.swapRedBlue32(src32[3]);
+ dst32[0] = a;
+ dst32[1] = b;
+ dst32[2] = c;
+ dst32[3] = d;
+ dst32 += 4;
+ src32 += 4;
+ }
+
+ uint32 bytesLeft = bytes & 0xF;
+ uint32 words = bytesLeft >> 2;
+
+ // now just do words
+ while (words--) {
+ *dst32++ = format.swapRedBlue32(*src32++);
+ }
+
+ bytesLeft = bytes & 0x3;
+
+ if (bytesLeft) { // for swap, can only be 1 short left
+ *((uint16 *)dst32) = format.swapRedBlue16(*((uint16 *)src32));
+ }
+}
+
// More challenging -- need to shift
// We assume dst is aligned
-void PspMemory::swap32Misaligned(uint32 *dst32, const uint16 *src16, uint32 bytes, PSPPixelFormat &format) {
+void PspMemorySwap::swap32Misaligned(uint32 *dst32, const uint16 *src16, uint32 bytes, PSPPixelFormat &format) {
DEBUG_ENTER_FUNC();
const uint32 shiftValue = 16;
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-06 23:44:46 +0000