diff options
Diffstat (limited to 'backends/platform/psp/memory.h')
-rw-r--r-- | backends/platform/psp/memory.h | 211 |
1 files changed, 131 insertions, 80 deletions
diff --git a/backends/platform/psp/memory.h b/backends/platform/psp/memory.h index a198095090..81a77cca1c 100644 --- a/backends/platform/psp/memory.h +++ b/backends/platform/psp/memory.h @@ -1,80 +1,131 @@ - -/* ScummVM - Graphic Adventure Engine - * - * ScummVM is the legal property of its developers, whose names - * are too numerous to list here. Please refer to the COPYRIGHT - * file distributed with this source distribution. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/trunk/backends/platform/psp/osys_psp.cpp $ - * $Id: osys_psp.cpp 46126 2009-11-24 14:18:46Z fingolfin $ - * - */ - -#ifndef PSP_MEMORY_H -#define PSP_MEMORY_H - -#define UNCACHED(x) ((byte *)(((uint32)(x)) | 0x40000000)) /* make an uncached access */ -#define CACHED(x) ((byte *)(((uint32)(x)) & 0xBFFFFFFF)) /* make an uncached access into a cached one */ - -/** - * Class that does memory copying and swapping if needed - */ -class Copier { -public: - static void copy(byte *dst, const byte *src, uint32 bytes, PSPPixelFormat *format = NULL); - static void copy8(byte *dst, const byte *src, uint32 bytes); - static void copy16(uint16 *dst, const uint16 *src, uint32 bytes, PSPPixelFormat *format = NULL); -}; - -/** - * Class that allocates memory in the VRAM - */ -class VramAllocator : public Common::Singleton<VramAllocator> { -public: - VramAllocator() : _bytesAllocated(0) {} - void *allocate(int32 size, bool smallAllocation = false); // smallAllocation e.g. palettes - void deallocate(void *pointer); - - static inline bool isAddressInVram(void *address) { - if ((uint32)(CACHED(address)) >= VRAM_START_ADDRESS && (uint32)(CACHED(address)) < VRAM_END_ADDRESS) - return true; - return false; - } - - -private: - /** - * Used to allocate in VRAM - */ - struct Allocation { - byte *address; - uint32 size; - void *getEnd() { return address + size; } - Allocation(void *Address, uint32 Size) : address((byte *)Address), size(Size) {} - Allocation() : address(0), size(0) {} - }; - - enum { - VRAM_START_ADDRESS = 0x04000000, - VRAM_END_ADDRESS = 0x04200000, - VRAM_SMALL_ADDRESS = VRAM_END_ADDRESS - (4 * 1024) // 4K in the end for small allocations - }; - Common::List <Allocation> _allocList; // List of allocations - uint32 _bytesAllocated; -}; - -#endif /* PSP_MEMORY_H */ +
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/trunk/backends/platform/psp/osys_psp.cpp $
+ * $Id: osys_psp.cpp 46126 2009-11-24 14:18:46Z fingolfin $
+ *
+ */
+
+#ifndef PSP_MEMORY_H
+#define PSP_MEMORY_H
+
+#include "backends/platform/psp/psppixelformat.h"
+#include "common/list.h"
+
+#define UNCACHED(x) ((byte *)(((uint32)(x)) | 0x40000000)) /* make an uncached access */
+#define CACHED(x) ((byte *)(((uint32)(x)) & 0xBFFFFFFF)) /* make an uncached access into a cached one */
+
+#define MIN_AMOUNT_FOR_COMPLEX_COPY 8
+#define MIN_AMOUNT_FOR_MISALIGNED_COPY 8
+
+//#define __PSP_DEBUG_PRINT__
+
+#include "backends/platform/psp/trace.h"
+
+/**
+ * Class that does memory copying and swapping if needed
+ */
+class PspMemory {
+private:
+ static void testCopy(const byte *debugDst, const byte *debugSrc, uint32 debugBytes);
+ static void copy(byte *dst, const byte *src, uint32 bytes);
+ static void swap(uint16 *dst16, const uint16 *src16, uint32 bytes, PSPPixelFormat &format);
+ static void copy32Aligned(uint32 *dst32, const uint32 *src32, uint32 bytes);
+ static void swap32Aligned(uint32 *dst32, const uint32 *src32, uint32 bytes, PSPPixelFormat &format);
+ static void copy32Misaligned(uint32 *dst32, const byte *src, uint32 bytes, uint32 alignSrc);
+ static uint32 misaligned32Detail(uint32 *dst32, uint32 *src32, uint32 bytes, uint32 alignSrc, const uint32 shiftValue, const uint32 lastShiftValue);
+ static void swap32Misaligned(uint32 *dst32, const uint16 *src16, uint32 bytes, PSPPixelFormat &format);
+ static void copy16(uint16 *dst, const uint16 *src, uint32 bytes);
+
+ // For swapping, we know that we have multiples of 16 bits
+ static void swap16(uint16 *dst16, const uint16 *src16, uint32 bytes, PSPPixelFormat &format) {
+ PSP_DEBUG_PRINT("swap16 called with dst16[%p], src16[%p], bytes[%d]\n", dst16, src16, bytes);
+ uint32 shorts = bytes >> 1;
+
+ for (; shorts > 0 ; shorts--) {
+ *dst16++ = format.swapRedBlue16(*src16++);
+ }
+ }
+
+ static void copy8(byte *dst, const byte *src, uint32 bytes) {
+ PSP_DEBUG_PRINT("copy8 called with dst[%p], src[%p], bytes[%d]\n", dst, src, bytes);
+ while (bytes--) {
+ *dst++ = *src++;
+ }
+ }
+
+public:
+ // This is the interface to the outside world
+ static void fastCopy(byte *dst, const byte *src, uint32 bytes) {
+ if (bytes < MIN_AMOUNT_FOR_COMPLEX_COPY) {
+ copy8(dst, src, bytes);
+ } else { // go to more powerful copy
+ copy(dst, src, bytes);
+ }
+ }
+
+ static void fastSwap(byte *dst, const byte *src, uint32 bytes, PSPPixelFormat &format) {
+ if (bytes < MIN_AMOUNT_FOR_COMPLEX_COPY * 2) {
+ swap16((uint16 *)dst, (uint16 *)src, bytes, format);
+ } else { // go to more powerful copy
+ swap((uint16 *)dst, (uint16 *)src, bytes, format);
+ }
+ }
+};
+
+/**
+ * Class that allocates memory in the VRAM
+ */
+class VramAllocator : public Common::Singleton<VramAllocator> {
+public:
+ VramAllocator() : _bytesAllocated(0) {}
+ void *allocate(int32 size, bool smallAllocation = false); // smallAllocation e.g. palettes
+ void deallocate(void *pointer);
+
+ static inline bool isAddressInVram(void *address) {
+ if ((uint32)(CACHED(address)) >= VRAM_START_ADDRESS && (uint32)(CACHED(address)) < VRAM_END_ADDRESS)
+ return true;
+ return false;
+ }
+
+
+private:
+ /**
+ * Used to allocate in VRAM
+ */
+ struct Allocation {
+ byte *address;
+ uint32 size;
+ void *getEnd() { return address + size; }
+ Allocation(void *Address, uint32 Size) : address((byte *)Address), size(Size) {}
+ Allocation() : address(0), size(0) {}
+ };
+
+ enum {
+ VRAM_START_ADDRESS = 0x04000000,
+ VRAM_END_ADDRESS = 0x04200000,
+ VRAM_SMALL_ADDRESS = VRAM_END_ADDRESS - (4 * 1024) // 4K in the end for small allocations
+ };
+ Common::List <Allocation> _allocList; // List of allocations
+ uint32 _bytesAllocated;
+};
+
+#endif /* PSP_MEMORY_H */
|