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/* 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 47541 2010-01-25 01:39:44Z lordhoto $
*
*/
#include <pspgu.h>
#include <pspdisplay.h>
#include <pspthreadman.h>
#include "common/scummsys.h"
#include "backends/base-backend.h"
#include "backends/platform/psp/psppixelformat.h"
#include "backends/platform/psp/display_client.h"
#include "backends/platform/psp/default_display_client.h"
#include "backends/platform/psp/cursor.h"
#include "backends/platform/psp/pspkeyboard.h"
#include "backends/platform/psp/thread.h"
#define USE_DISPLAY_CALLBACK // to use callback for finishing the render
#include "backends/platform/psp/display_manager.h"
#define PSP_BUFFER_WIDTH (512)
#define PSP_SCREEN_WIDTH 480
#define PSP_SCREEN_HEIGHT 272
#define PSP_FRAME_SIZE (PSP_BUFFER_WIDTH * PSP_SCREEN_HEIGHT)
//#define ENABLE_RENDER_MEASURE /* how long it takes to render a frame */
//#define __PSP_DEBUG_FUNCS__ /* For debugging function calls */
//#define __PSP_DEBUG_PRINT__ /* For debug printouts */
#include "backends/platform/psp/trace.h"
uint32 __attribute__((aligned(16))) MasterGuRenderer::_displayList[2048];
const OSystem::GraphicsMode DisplayManager::_supportedModes[] = {
{ "320x200 (centered)", "320x200 16-bit centered", CENTERED_320X200 },
{ "435x272 (best-fit, centered)", "435x272 16-bit centered", CENTERED_435X272 },
{ "480x272 (full screen)", "480x272 16-bit stretched", STRETCHED_480X272 },
{ "362x272 (4:3, centered)", "362x272 16-bit centered", CENTERED_362X272 },
{0, 0, 0}
};
// Class MasterGuRenderer ----------------------------------------------
void MasterGuRenderer::setupCallbackThread() {
DEBUG_ENTER_FUNC();
int thid = sceKernelCreateThread("displayCbThread", guCallbackThread, PRIORITY_DISPLAY_THREAD, STACK_DISPLAY_THREAD, THREAD_ATTR_USER, 0);
PSP_DEBUG_PRINT("Display CB thread id is %x\n", thid);
// We want to pass the pointer to this, but we'll have to take address of this so use a little trick
MasterGuRenderer *_this = this;
if (thid >= 0) {
sceKernelStartThread(thid, sizeof(uint32 *), &_this);
} else
PSP_ERROR("failed to create display callback thread\n");
}
// thread that reacts to the callback
int MasterGuRenderer::guCallbackThread(SceSize, void *__this) {
DEBUG_ENTER_FUNC();
// Dereferenced the copied value which was this
MasterGuRenderer *_this = *(MasterGuRenderer **)__this;
// Create the callback. It should always get the pointer to MasterGuRenderer
_this->_callbackId = sceKernelCreateCallback("Display Callback", guCallback, _this);
if (_this->_callbackId < 0) {
PSP_ERROR("failed to create display callback\n");
return -1;
}
PSP_DEBUG_PRINT("created callback. Going to sleep\n");
sceKernelSleepThreadCB(); // sleep until we get a callback
return 0;
}
// This callback is called when the render is finished. It swaps the buffers
int MasterGuRenderer::guCallback(int, int, void *__this) {
MasterGuRenderer *_this = (MasterGuRenderer *)__this;
sceGuSync(0, 0); // make sure we wait for GU to finish
sceDisplayWaitVblankStartCB(); // wait for v-blank without eating main thread cycles
sceGuSwapBuffers(); // swap the back and front buffers
_this->_renderFinished = true; // Only this thread can set the variable to true
return 0;
}
void MasterGuRenderer::guInit() {
DEBUG_ENTER_FUNC();
sceGuInit();
sceGuStart(0, _displayList);
guProgramDisplayBufferSizes();
sceGuOffset(2048 - (PSP_SCREEN_WIDTH / 2), 2048 - (PSP_SCREEN_HEIGHT / 2));
sceGuViewport(2048, 2048, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT);
sceGuDepthRange(0xC350, 0x2710);
sceGuDisable(GU_DEPTH_TEST); // We'll use depth buffer area
sceGuDepthMask(GU_TRUE); // Prevent writes to depth buffer
sceGuScissor(0, 0, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT);
sceGuEnable(GU_SCISSOR_TEST);
sceGuFrontFace(GU_CW);
sceGuEnable(GU_TEXTURE_2D);
sceGuClear(GU_COLOR_BUFFER_BIT | GU_DEPTH_BUFFER_BIT);
sceGuFinish();
sceGuSync(0, 0);
sceDisplayWaitVblankStart();
sceGuDisplay(1);
}
void MasterGuRenderer::guProgramDisplayBufferSizes() {
DEBUG_ENTER_FUNC();
PSP_DEBUG_PRINT("Outputbits[%u]\n", GuRenderer::_displayManager->getOutputBitsPerPixel());
switch (GuRenderer::_displayManager->getOutputBitsPerPixel()) {
case 16:
sceGuDrawBuffer(GU_PSM_4444, (void *)0, PSP_BUFFER_WIDTH);
sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT, (void*)(PSP_FRAME_SIZE * sizeof(uint16)), PSP_BUFFER_WIDTH);
sceGuDepthBuffer((void*)(PSP_FRAME_SIZE * sizeof(uint16) * 2), PSP_BUFFER_WIDTH);
VramAllocator::instance().allocate(PSP_FRAME_SIZE * sizeof(uint16) * 2);
break;
case 32:
sceGuDrawBuffer(GU_PSM_8888, (void *)0, PSP_BUFFER_WIDTH);
sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT, (void*)(PSP_FRAME_SIZE * sizeof(uint32)), PSP_BUFFER_WIDTH);
sceGuDepthBuffer((void*)(PSP_FRAME_SIZE * sizeof(uint32) * 2), PSP_BUFFER_WIDTH);
VramAllocator::instance().allocate(PSP_FRAME_SIZE * sizeof(uint32) * 2);
break;
}
}
// These are GU commands that should always stay the same
inline void MasterGuRenderer::guPreRender() {
DEBUG_ENTER_FUNC();
_renderFinished = false; // set to synchronize with callback thread
#ifdef ENABLE_RENDER_MEASURE
_lastRenderTime = g_system->getMillis();
#endif /* ENABLE_RENDER_MEASURE */
sceGuStart(0, _displayList);
sceGuClearColor(0xFF000000);
sceGuClear(GU_COLOR_BUFFER_BIT);
sceGuAmbientColor(0xFFFFFFFF);
sceGuColor(0xFFFFFFFF);
sceGuTexOffset(0, 0);
sceGuTexFilter(GU_LINEAR, GU_LINEAR);
sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGBA); // Also good enough for all purposes
sceGuAlphaFunc(GU_GREATER, 0, 0xFF); // Also good enough for all purposes
}
inline void MasterGuRenderer::guPostRender() {
DEBUG_ENTER_FUNC();
sceGuFinish();
#ifdef USE_DISPLAY_CALLBACK
if (_callbackId < 0)
PSP_ERROR("bad callbackId[%d]\n", _callbackId);
else
sceKernelNotifyCallback(_callbackId, 0); // notify the callback. Nothing extra to pass
#else
sceGuSync(0, 0);
#ifdef ENABLE_RENDER_MEASURE
uint32 now = g_system->getMillis();
PSP_INFO_PRINT("Render took %d milliseconds\n", now - _lastRenderTime);
#endif /* ENABLE_RENDER_MEASURE */
sceDisplayWaitVblankStart();
sceGuSwapBuffers();
_renderFinished = true;
#endif /* !USE_DISPLAY_CALLBACK */
}
void MasterGuRenderer::guShutDown() {
sceGuTerm();
}
// Class DisplayManager -----------------------------------------------------
DisplayManager::~DisplayManager() {
_masterGuRenderer.guShutDown();
}
void DisplayManager::init() {
DEBUG_ENTER_FUNC();
_displayParams.outputBitsPerPixel = 32; // can be changed to produce 16-bit output
GuRenderer::setDisplayManager(this);
_screen->init();
_overlay->init();
_cursor->init();
_masterGuRenderer.guInit(); // start up the renderer
#ifdef USE_DISPLAY_CALLBACK
_masterGuRenderer.setupCallbackThread();
#endif
}
void DisplayManager::setSizeAndPixelFormat(uint width, uint height, const Graphics::PixelFormat *format) {
DEBUG_ENTER_FUNC();
PSP_DEBUG_PRINT("w[%u], h[%u], pformat[%p]\n", width, height, format);
_overlay->deallocate();
_screen->deallocate();
_screen->setScummvmPixelFormat(format);
_screen->setSize(width, height);
_screen->allocate();
_cursor->setScreenPaletteScummvmPixelFormat(format);
_overlay->setBytesPerPixel(sizeof(OverlayColor));
_overlay->setSize(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT);
_overlay->allocate();
_displayParams.screenSource.width = width;
_displayParams.screenSource.height = height;
calculateScaleParams();
}
bool DisplayManager::setGraphicsMode(const char *name) {
DEBUG_ENTER_FUNC();
int i = 0;
while (_supportedModes[i].name) {
if (!strcmpi(_supportedModes[i].name, name)) {
setGraphicsMode(_supportedModes[i].id);
return true;
}
i++;
}
return false;
}
bool DisplayManager::setGraphicsMode(int mode) {
DEBUG_ENTER_FUNC();
_graphicsMode = mode;
switch (_graphicsMode) {
case CENTERED_320X200:
_displayParams.screenOutput.width = 320;
_displayParams.screenOutput.height = 200;
break;
case CENTERED_435X272:
_displayParams.screenOutput.width = 435;
_displayParams.screenOutput.height = 272;
break;
case STRETCHED_480X272:
_displayParams.screenOutput.width = 480;
_displayParams.screenOutput.height = 272;
break;
case CENTERED_362X272:
_displayParams.screenOutput.width = 362;
_displayParams.screenOutput.height = 272;
break;
default:
PSP_ERROR("Unsupported graphics mode[%d].\n", _graphicsMode);
}
calculateScaleParams();
return true;
}
void DisplayManager::calculateScaleParams() {
if (_displayParams.screenOutput.width && _displayParams.screenSource.width &&
_displayParams.screenOutput.height && _displayParams.screenSource.height) {
_displayParams.scaleX = ((float)_displayParams.screenOutput.width) / _displayParams.screenSource.width;
_displayParams.scaleY = ((float)_displayParams.screenOutput.height) / _displayParams.screenSource.height;
}
}
void DisplayManager::renderAll() {
DEBUG_ENTER_FUNC();
#ifdef USE_DISPLAY_CALLBACK
if (!_masterGuRenderer.isRenderFinished()) {
PSP_DEBUG_PRINT("Callback render not finished.\n");
return;
}
#endif /* USE_DISPLAY_CALLBACK */
if (!isTimeToUpdate())
return;
if (!_screen->isDirty() &&
(!_overlay->isDirty()) &&
(!_cursor->isDirty()) &&
(!_keyboard->isDirty())) {
PSP_DEBUG_PRINT("Nothing dirty\n");
return;
}
PSP_DEBUG_PRINT("screen[%s], overlay[%s], cursor[%s], keyboard[%s]\n",
_screen->isDirty() ? "true" : "false",
_overlay->isDirty() ? "true" : "false",
_cursor->isDirty() ? "true" : "false",
_keyboard->isDirty() ? "true" : "false"
);
_masterGuRenderer.guPreRender(); // Set up rendering
_screen->render();
_screen->setClean(); // clean out dirty bit
if (_overlay->isVisible())
_overlay->render();
_overlay->setClean();
if (_cursor->isVisible())
_cursor->render();
_cursor->setClean();
if (_keyboard->isVisible())
_keyboard->render();
_keyboard->setClean();
_masterGuRenderer.guPostRender();
}
inline bool DisplayManager::isTimeToUpdate() {
#define MAX_FPS 30
uint32 now = g_system->getMillis();
if (now - _lastUpdateTime < (1000 / MAX_FPS))
return false;
_lastUpdateTime = now;
return true;
}
Common::List<Graphics::PixelFormat> DisplayManager::getSupportedPixelFormats() {
Common::List<Graphics::PixelFormat> list;
// In order of preference
list.push_back(PSPPixelFormat::convertToScummvmPixelFormat(PSPPixelFormat::Type_5650));
list.push_back(PSPPixelFormat::convertToScummvmPixelFormat(PSPPixelFormat::Type_5551));
list.push_back(PSPPixelFormat::convertToScummvmPixelFormat(PSPPixelFormat::Type_4444));
list.push_back(Graphics::PixelFormat::createFormatCLUT8());
return list;
}
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