diff options
Diffstat (limited to 'src/plugins/gfxdrivers/powervr/QWSWSEGL/pvrqwsdrawable.c')
| -rw-r--r-- | src/plugins/gfxdrivers/powervr/QWSWSEGL/pvrqwsdrawable.c | 830 |
1 files changed, 0 insertions, 830 deletions
diff --git a/src/plugins/gfxdrivers/powervr/QWSWSEGL/pvrqwsdrawable.c b/src/plugins/gfxdrivers/powervr/QWSWSEGL/pvrqwsdrawable.c deleted file mode 100644 index c453279155..0000000000 --- a/src/plugins/gfxdrivers/powervr/QWSWSEGL/pvrqwsdrawable.c +++ /dev/null @@ -1,830 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the plugins of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "pvrqwsdrawable_p.h" -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include <sys/mman.h> -#include <sys/ioctl.h> -#include <linux/fb.h> -#include <fcntl.h> -#include <unistd.h> - -PvrQwsDisplay pvrQwsDisplay; - -static void pvrQwsDestroyDrawableForced(PvrQwsDrawable *drawable); - -/* Initialize the /dev/fbN device for a specific screen */ -static int pvrQwsInitFbScreen(int screen) -{ - struct fb_var_screeninfo var; - struct fb_fix_screeninfo fix; - unsigned long start; - unsigned long length; - int width, height, stride; - PVR2DFORMAT format; - void *mapped; - int fd, bytesPerPixel; - char name[64]; - PVR2DMEMINFO *memInfo; - unsigned long pageAddresses[2]; - - /* Bail out if already initialized, or the number is incorrect */ - if (screen < 0 || screen >= PVRQWS_MAX_SCREENS) - return 0; - if (pvrQwsDisplay.screens[screen].initialized) - return 1; - - /* Open the framebuffer and fetch its properties */ - sprintf(name, "/dev/fb%d", screen); - fd = open(name, O_RDWR, 0); - if (fd < 0) { - perror(name); - return 0; - } - if (ioctl(fd, FBIOGET_VSCREENINFO, &var) < 0) { - perror("FBIOGET_VSCREENINFO"); - close(fd); - return 0; - } - if (ioctl(fd, FBIOGET_FSCREENINFO, &fix) < 0) { - perror("FBIOGET_FSCREENINFO"); - close(fd); - return 0; - } - width = var.xres; - height = var.yres; - bytesPerPixel = var.bits_per_pixel / 8; - stride = fix.line_length; - format = PVR2D_1BPP; - if (var.bits_per_pixel == 16) { - if (var.red.length == 5 && var.green.length == 6 && - var.blue.length == 5 && var.red.offset == 11 && - var.green.offset == 5 && var.blue.offset == 0) { - format = PVR2D_RGB565; - } - if (var.red.length == 4 && var.green.length == 4 && - var.blue.length == 4 && var.transp.length == 4 && - var.red.offset == 8 && var.green.offset == 4 && - var.blue.offset == 0 && var.transp.offset == 12) { - format = PVR2D_ARGB4444; - } - } else if (var.bits_per_pixel == 32) { - if (var.red.length == 8 && var.green.length == 8 && - var.blue.length == 8 && var.transp.length == 8 && - var.red.offset == 16 && var.green.offset == 8 && - var.blue.offset == 0 && var.transp.offset == 24) { - format = PVR2D_ARGB8888; - } - } - if (format == PVR2D_1BPP) { - fprintf(stderr, "%s: could not find a suitable PVR2D pixel format\n", name); - close(fd); - return 0; - } - start = fix.smem_start; - length = var.xres_virtual * var.yres_virtual * bytesPerPixel; - - if (screen == 0) { - /* We use PVR2DGetFrameBuffer to map the first screen. - On some chipsets it is more reliable than using PVR2DMemWrap */ - mapped = 0; - memInfo = 0; - } else { - /* Other screens: map the framebuffer region into memory */ - mapped = mmap(0, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); - if (!mapped || mapped == (void *)(-1)) { - perror("mmap"); - close(fd); - return 0; - } - - /* Allocate a PVR2D memory region for the framebuffer */ - memInfo = 0; - if (pvrQwsDisplay.context) { - pageAddresses[0] = start & 0xFFFFF000; - pageAddresses[1] = 0; - if (PVR2DMemWrap - (pvrQwsDisplay.context, mapped, PVR2D_WRAPFLAG_CONTIGUOUS, - length, pageAddresses, &memInfo) != PVR2D_OK) { - munmap(mapped, length); - close(fd); - return 0; - } - } - } - - /* We don't need the file descriptor any more */ - close(fd); - - /* The framebuffer is ready, so initialize the PvrQwsScreenInfo */ - pvrQwsDisplay.screens[screen].screenRect.x = 0; - pvrQwsDisplay.screens[screen].screenRect.y = 0; - pvrQwsDisplay.screens[screen].screenRect.width = width; - pvrQwsDisplay.screens[screen].screenRect.height = height; - pvrQwsDisplay.screens[screen].screenStride = stride; - pvrQwsDisplay.screens[screen].pixelFormat = format; - pvrQwsDisplay.screens[screen].bytesPerPixel = bytesPerPixel; - pvrQwsDisplay.screens[screen].screenDrawable = 0; - if (mapped) { - /* Don't set these fields if mapped is 0, because PVR2DGetFrameBuffer - may have already been called and set them */ - pvrQwsDisplay.screens[screen].frameBuffer = memInfo; - pvrQwsDisplay.screens[screen].mapped = mapped; - } - pvrQwsDisplay.screens[screen].mappedLength = length; - pvrQwsDisplay.screens[screen].screenStart = start; - pvrQwsDisplay.screens[screen].needsUnmap = (mapped != 0); - pvrQwsDisplay.screens[screen].initialized = 1; - return 1; -} - -/* Called when a new drawable is added to ensure that we have a - PVR2D context and framebuffer PVR2DMEMINFO blocks */ -static int pvrQwsAddDrawable(void) -{ - int numDevs, screen; - PVR2DDEVICEINFO *devs; - unsigned long devId; - unsigned long pageAddresses[2]; - PVR2DMEMINFO *memInfo; - PVR2DDISPLAYINFO displayInfo; - - /* Bail out early if this is not the first drawable */ - if (pvrQwsDisplay.numDrawables > 0) { - ++(pvrQwsDisplay.numDrawables); - return 1; - } - - /* Find the first PVR2D device in the system and open it */ - numDevs = PVR2DEnumerateDevices(0); - if (numDevs <= 0) - return 0; - devs = (PVR2DDEVICEINFO *)malloc(sizeof(PVR2DDEVICEINFO) * numDevs); - if (!devs) - return 0; - if (PVR2DEnumerateDevices(devs) != PVR2D_OK) { - free(devs); - return 0; - } - devId = devs[0].ulDevID; - free(devs); - if (PVR2DCreateDeviceContext(devId, &pvrQwsDisplay.context, 0) != PVR2D_OK) - return 0; - pvrQwsDisplay.numFlipBuffers = 0; - pvrQwsDisplay.flipChain = 0; - if (PVR2DGetDeviceInfo(pvrQwsDisplay.context, &displayInfo) == PVR2D_OK) { - if (displayInfo.ulMaxFlipChains > 0 && displayInfo.ulMaxBuffersInChain > 0) - pvrQwsDisplay.numFlipBuffers = displayInfo.ulMaxBuffersInChain; - if (pvrQwsDisplay.numFlipBuffers > PVRQWS_MAX_FLIP_BUFFERS) - pvrQwsDisplay.numFlipBuffers = PVRQWS_MAX_FLIP_BUFFERS; - } - - /* Create the PVR2DMEMINFO blocks for the active framebuffers */ - for (screen = 0; screen < PVRQWS_MAX_SCREENS; ++screen) { - if (screen != 0 && pvrQwsDisplay.screens[screen].mapped) { - pageAddresses[0] - = pvrQwsDisplay.screens[screen].screenStart & 0xFFFFF000; - pageAddresses[1] = 0; - if (PVR2DMemWrap - (pvrQwsDisplay.context, - pvrQwsDisplay.screens[screen].mapped, - PVR2D_WRAPFLAG_CONTIGUOUS, - pvrQwsDisplay.screens[screen].mappedLength, - pageAddresses, &memInfo) != PVR2D_OK) { - PVR2DDestroyDeviceContext(pvrQwsDisplay.context); - pvrQwsDisplay.context = 0; - return 0; - } - pvrQwsDisplay.screens[screen].frameBuffer = memInfo; - } else if (screen == 0) { - if (PVR2DGetFrameBuffer - (pvrQwsDisplay.context, - PVR2D_FB_PRIMARY_SURFACE, &memInfo) != PVR2D_OK) { - fprintf(stderr, "QWSWSEGL: could not get the primary framebuffer surface\n"); - PVR2DDestroyDeviceContext(pvrQwsDisplay.context); - pvrQwsDisplay.context = 0; - return 0; - } - pvrQwsDisplay.screens[screen].frameBuffer = memInfo; - pvrQwsDisplay.screens[screen].mapped = memInfo->pBase; - } - } - - /* Create a flip chain for the screen if supported by the hardware */ - pvrQwsDisplay.usePresentBlit = 0; - if (pvrQwsDisplay.numFlipBuffers > 0) { - long stride = 0; - unsigned long flipId = 0; - unsigned long numBuffers; - if (PVR2DCreateFlipChain(pvrQwsDisplay.context, 0, - //PVR2D_CREATE_FLIPCHAIN_SHARED | - //PVR2D_CREATE_FLIPCHAIN_QUERY, - pvrQwsDisplay.numFlipBuffers, - pvrQwsDisplay.screens[0].screenRect.width, - pvrQwsDisplay.screens[0].screenRect.height, - pvrQwsDisplay.screens[0].pixelFormat, - &stride, &flipId, &(pvrQwsDisplay.flipChain)) - == PVR2D_OK) { - pvrQwsDisplay.screens[0].screenStride = stride; - PVR2DGetFlipChainBuffers(pvrQwsDisplay.context, - pvrQwsDisplay.flipChain, - &numBuffers, - pvrQwsDisplay.flipBuffers); - } else { - pvrQwsDisplay.flipChain = 0; - pvrQwsDisplay.numFlipBuffers = 0; - } - - /* PVR2DPresentBlt is a little more reliable than PVR2DBlt - when flip chains are present, even if we cannot create a - flip chain at the moment */ - pvrQwsDisplay.usePresentBlit = 1; - } - - /* The context is ready to go */ - ++(pvrQwsDisplay.numDrawables); - return 1; -} - -/* Called when the last drawable is destroyed. The PVR2D context - will be destroyed but the raw framebuffer memory will stay mapped */ -static void pvrQwsDestroyContext(void) -{ - int screen; - for (screen = 0; screen < PVRQWS_MAX_SCREENS; ++screen) { - if (pvrQwsDisplay.screens[screen].frameBuffer) { - PVR2DMemFree - (pvrQwsDisplay.context, - pvrQwsDisplay.screens[screen].frameBuffer); - pvrQwsDisplay.screens[screen].frameBuffer = 0; - } - } - - if (pvrQwsDisplay.numFlipBuffers > 0) - PVR2DDestroyFlipChain(pvrQwsDisplay.context, pvrQwsDisplay.flipChain); - PVR2DDestroyDeviceContext(pvrQwsDisplay.context); - pvrQwsDisplay.context = 0; - pvrQwsDisplay.flipChain = 0; - pvrQwsDisplay.numFlipBuffers = 0; - pvrQwsDisplay.usePresentBlit = 0; -} - -int pvrQwsDisplayOpen(void) -{ - int screen; - - /* If the display is already open, increase reference count and return */ - if (pvrQwsDisplay.refCount > 0) { - ++(pvrQwsDisplay.refCount); - return 1; - } - - /* Open the framebuffer and map it directly */ - if (!pvrQwsInitFbScreen(0)) { - --(pvrQwsDisplay.refCount); - return 0; - } - - /* Clear the other screens. We will create them if they are referenced */ - for (screen = 1; screen < PVRQWS_MAX_SCREENS; ++screen) - memset(&(pvrQwsDisplay.screens[screen]), 0, sizeof(PvrQwsScreenInfo)); - - /* The display is open and ready */ - ++(pvrQwsDisplay.refCount); - return 1; -} - -void pvrQwsDisplayClose(void) -{ - int screen; - - if (pvrQwsDisplay.refCount == 0) - return; - if (--(pvrQwsDisplay.refCount) > 0) - return; - - /* Prevent pvrQwsDestroyContext from being called for the time being */ - ++pvrQwsDisplay.numDrawables; - - /* Free the screens */ - for (screen = 0; screen < PVRQWS_MAX_SCREENS; ++screen) { - PvrQwsScreenInfo *info = &(pvrQwsDisplay.screens[screen]); - if (info->screenDrawable) - pvrQwsDestroyDrawableForced(info->screenDrawable); - if (info->frameBuffer) - PVR2DMemFree(pvrQwsDisplay.context, info->frameBuffer); - if (info->mapped && info->needsUnmap) - munmap(info->mapped, info->mappedLength); - } - - /* Now it is safe to destroy the PVR2D context */ - --pvrQwsDisplay.numDrawables; - if (pvrQwsDisplay.context) - PVR2DDestroyDeviceContext(pvrQwsDisplay.context); - - memset(&pvrQwsDisplay, 0, sizeof(pvrQwsDisplay)); -} - -int pvrQwsDisplayIsOpen(void) -{ - return (pvrQwsDisplay.refCount > 0); -} - -/* Ensure that a specific screen has been initialized */ -static int pvrQwsEnsureScreen(int screen) -{ - if (screen < 0 || screen >= PVRQWS_MAX_SCREENS) - return 0; - if (!screen) - return 1; - return pvrQwsInitFbScreen(screen); -} - -PvrQwsDrawable *pvrQwsScreenWindow(int screen) -{ - PvrQwsDrawable *drawable; - - if (!pvrQwsEnsureScreen(screen)) - return 0; - - drawable = pvrQwsDisplay.screens[screen].screenDrawable; - if (drawable) - return drawable; - - drawable = (PvrQwsDrawable *)calloc(1, sizeof(PvrQwsDrawable)); - if (!drawable) - return 0; - - drawable->type = PvrQwsScreen; - drawable->screen = screen; - drawable->pixelFormat = pvrQwsDisplay.screens[screen].pixelFormat; - drawable->rect = pvrQwsDisplay.screens[screen].screenRect; - drawable->visibleRects[0] = drawable->rect; - drawable->numVisibleRects = 1; - drawable->isFullScreen = 1; - - if (!pvrQwsAddDrawable()) { - free(drawable); - return 0; - } - - pvrQwsDisplay.screens[screen].screenDrawable = drawable; - - return drawable; -} - -PvrQwsDrawable *pvrQwsCreateWindow(int screen, long winId, const PvrQwsRect *rect) -{ - PvrQwsDrawable *drawable; - - if (!pvrQwsEnsureScreen(screen)) - return 0; - - drawable = (PvrQwsDrawable *)calloc(1, sizeof(PvrQwsDrawable)); - if (!drawable) - return 0; - - drawable->type = PvrQwsWindow; - drawable->winId = winId; - drawable->refCount = 1; - drawable->screen = screen; - drawable->pixelFormat = pvrQwsDisplay.screens[screen].pixelFormat; - drawable->rect = *rect; - - if (!pvrQwsAddDrawable()) { - free(drawable); - return 0; - } - - drawable->nextWinId = pvrQwsDisplay.firstWinId; - pvrQwsDisplay.firstWinId = drawable; - - return drawable; -} - -PvrQwsDrawable *pvrQwsFetchWindow(long winId) -{ - PvrQwsDrawable *drawable = pvrQwsDisplay.firstWinId; - while (drawable != 0 && drawable->winId != winId) - drawable = drawable->nextWinId; - - if (drawable) - ++(drawable->refCount); - return drawable; -} - -int pvrQwsReleaseWindow(PvrQwsDrawable *drawable) -{ - if (drawable->type == PvrQwsWindow) - return (--(drawable->refCount) <= 0); - else - return 0; -} - -PvrQwsDrawable *pvrQwsCreatePixmap(int width, int height, int screen) -{ - PvrQwsDrawable *drawable; - - if (!pvrQwsEnsureScreen(screen)) - return 0; - - drawable = (PvrQwsDrawable *)calloc(1, sizeof(PvrQwsDrawable)); - if (!drawable) - return 0; - - drawable->type = PvrQwsPixmap; - drawable->screen = screen; - drawable->pixelFormat = pvrQwsDisplay.screens[screen].pixelFormat; - drawable->rect.x = 0; - drawable->rect.y = 0; - drawable->rect.width = width; - drawable->rect.height = height; - - if (!pvrQwsAddDrawable()) { - free(drawable); - return 0; - } - - return drawable; -} - -static void pvrQwsDestroyDrawableForced(PvrQwsDrawable *drawable) -{ - /* Remove the drawable from the display's winId list */ - PvrQwsDrawable *current = pvrQwsDisplay.firstWinId; - PvrQwsDrawable *prev = 0; - while (current != 0 && current != drawable) { - prev = current; - current = current->nextWinId; - } - if (current != 0) { - if (prev) - prev->nextWinId = current->nextWinId; - else - pvrQwsDisplay.firstWinId = current->nextWinId; - } - - pvrQwsFreeBuffers(drawable); - free(drawable); - - --pvrQwsDisplay.numDrawables; - if (pvrQwsDisplay.numDrawables == 0) - pvrQwsDestroyContext(); -} - -void pvrQwsDestroyDrawable(PvrQwsDrawable *drawable) -{ - if (drawable && drawable->type != PvrQwsScreen) - pvrQwsDestroyDrawableForced(drawable); -} - -PvrQwsDrawableType pvrQwsGetDrawableType(PvrQwsDrawable *drawable) -{ - return drawable->type; -} - -void pvrQwsSetVisibleRegion - (PvrQwsDrawable *drawable, const PvrQwsRect *rects, int numRects) -{ - int index, indexOut; - PvrQwsRect *rect; - PvrQwsRect *screenRect; - - /* Visible regions don't make sense for pixmaps */ - if (drawable->type == PvrQwsPixmap) - return; - - /* Restrict the number of rectangles to prevent buffer overflow */ - if (numRects > PVRQWS_MAX_VISIBLE_RECTS) - numRects = PVRQWS_MAX_VISIBLE_RECTS; - if (numRects > 0) - memcpy(drawable->visibleRects, rects, numRects * sizeof(PvrQwsRect)); - - /* Convert the rectangles into screen-relative co-ordinates and - then clamp them to the screen boundaries. If any of the - clamped rectangles are empty, remove them from the list */ - screenRect = &(pvrQwsDisplay.screens[drawable->screen].screenRect); - indexOut = 0; - for (index = 0, rect = drawable->visibleRects; index < numRects; ++index, ++rect) { - if (rect->x < 0) { - rect->width += rect->x; - rect->x = 0; - if (rect->width < 0) - rect->width = 0; - } else if (rect->x >= screenRect->width) { - rect->x = screenRect->width; - rect->width = 0; - } - if ((rect->x + rect->width) > screenRect->width) { - rect->width = screenRect->width - rect->x; - } - if (rect->y < 0) { - rect->height += rect->y; - rect->y = 0; - if (rect->height < 0) - rect->height = 0; - } else if (rect->y >= screenRect->height) { - rect->y = screenRect->height; - rect->height = 0; - } - if ((rect->y + rect->height) > screenRect->height) { - rect->height = screenRect->height - rect->y; - } - if (rect->width > 0 && rect->height > 0) { - if (index != indexOut) - drawable->visibleRects[indexOut] = *rect; - ++indexOut; - } - } - drawable->numVisibleRects = indexOut; -} - -void pvrQwsClearVisibleRegion(PvrQwsDrawable *drawable) -{ - if (drawable->type != PvrQwsPixmap) - drawable->numVisibleRects = 0; -} - -void pvrQwsSetGeometry(PvrQwsDrawable *drawable, const PvrQwsRect *rect) -{ - /* We can only change the geometry of window drawables */ - if (drawable->type != PvrQwsWindow) - return; - - /* If the position has changed, then clear the visible region */ - if (drawable->rect.x != rect->x || drawable->rect.y != rect->y) { - drawable->rect.x = rect->x; - drawable->rect.y = rect->y; - drawable->numVisibleRects = 0; - } - - /* If the size has changed, then clear the visible region and - invalidate the drawable's buffers. Invalidating the buffers - will force EGL to recreate the drawable, which will then - allocate new buffers for the new size */ - if (drawable->rect.width != rect->width || - drawable->rect.height != rect->height) { - drawable->rect.width = rect->width; - drawable->rect.height = rect->height; - drawable->numVisibleRects = 0; - pvrQwsInvalidateBuffers(drawable); - } -} - -void pvrQwsGetGeometry(PvrQwsDrawable *drawable, PvrQwsRect *rect) -{ - *rect = drawable->rect; -} - -void pvrQwsSetRotation(PvrQwsDrawable *drawable, int angle) -{ - if (drawable->rotationAngle != angle) { - drawable->rotationAngle = angle; - - /* Force the buffers to be recreated if the rotation angle changes */ - pvrQwsInvalidateBuffers(drawable); - } -} - -int pvrQwsGetStride(PvrQwsDrawable *drawable) -{ - if (drawable->backBuffersValid) - return drawable->strideBytes; - else - return 0; -} - -PvrQwsPixelFormat pvrQwsGetPixelFormat(PvrQwsDrawable *drawable) -{ - return (PvrQwsPixelFormat)(drawable->pixelFormat); -} - -void *pvrQwsGetRenderBuffer(PvrQwsDrawable *drawable) -{ - if (drawable->backBuffersValid) - return drawable->backBuffers[drawable->currentBackBuffer]->pBase; - else - return 0; -} - -int pvrQwsAllocBuffers(PvrQwsDrawable *drawable) -{ - int index; - int numBuffers = PVRQWS_MAX_BACK_BUFFERS; - if (drawable->type == PvrQwsPixmap) - numBuffers = 1; - if (drawable->backBuffers[0]) { - if (drawable->backBuffersValid) - return 1; - if (!drawable->usingFlipBuffers) { - for (index = 0; index < numBuffers; ++index) - PVR2DMemFree(pvrQwsDisplay.context, drawable->backBuffers[index]); - } - } - drawable->stridePixels = (drawable->rect.width + 31) & ~31; - drawable->strideBytes = - drawable->stridePixels * - pvrQwsDisplay.screens[drawable->screen].bytesPerPixel; - drawable->usingFlipBuffers = - (pvrQwsDisplay.numFlipBuffers > 0 && drawable->isFullScreen); - if (drawable->usingFlipBuffers) { - if (numBuffers > (int)(pvrQwsDisplay.numFlipBuffers)) - numBuffers = pvrQwsDisplay.numFlipBuffers; - for (index = 0; index < numBuffers; ++index) - drawable->backBuffers[index] = pvrQwsDisplay.flipBuffers[index]; - } else { - for (index = 0; index < numBuffers; ++index) { - if (PVR2DMemAlloc(pvrQwsDisplay.context, - drawable->strideBytes * drawable->rect.height, - 128, 0, - &(drawable->backBuffers[index])) != PVR2D_OK) { - while (--index >= 0) - PVR2DMemFree(pvrQwsDisplay.context, drawable->backBuffers[index]); - memset(drawable->backBuffers, 0, sizeof(drawable->backBuffers)); - drawable->backBuffersValid = 0; - return 0; - } - } - } - for (index = numBuffers; index < PVRQWS_MAX_BACK_BUFFERS; ++index) { - drawable->backBuffers[index] = drawable->backBuffers[0]; - } - drawable->backBuffersValid = 1; - drawable->currentBackBuffer = 0; - return 1; -} - -void pvrQwsFreeBuffers(PvrQwsDrawable *drawable) -{ - int index; - int numBuffers = PVRQWS_MAX_BACK_BUFFERS; - if (drawable->type == PvrQwsPixmap) - numBuffers = 1; - if (!drawable->usingFlipBuffers) { - for (index = 0; index < numBuffers; ++index) { - if (drawable->backBuffers[index]) - PVR2DMemFree(pvrQwsDisplay.context, drawable->backBuffers[index]); - } - } - memset(drawable->backBuffers, 0, sizeof(drawable->backBuffers)); - drawable->backBuffersValid = 0; - drawable->usingFlipBuffers = 0; -} - -void pvrQwsInvalidateBuffers(PvrQwsDrawable *drawable) -{ - drawable->backBuffersValid = 0; -} - -int pvrQwsGetBuffers - (PvrQwsDrawable *drawable, PVR2DMEMINFO **source, PVR2DMEMINFO **render) -{ - if (!drawable->backBuffersValid) - return 0; - *render = drawable->backBuffers[drawable->currentBackBuffer]; - *source = drawable->backBuffers - [(drawable->currentBackBuffer + PVRQWS_MAX_BACK_BUFFERS - 1) % - PVRQWS_MAX_BACK_BUFFERS]; - return 1; -} - -int pvrQwsSwapBuffers(PvrQwsDrawable *drawable, int repaintOnly) -{ - PVR2DMEMINFO *buffer; - PvrQwsRect *rect; - int index; - - /* Bail out if the back buffers have been invalidated */ - if (!drawable->backBuffersValid) - return 0; - - /* If there is a swap function, then use that instead */ - if (drawable->swapFunction) { - (*(drawable->swapFunction))(drawable, drawable->userData, repaintOnly); - if (!repaintOnly) { - drawable->currentBackBuffer - = (drawable->currentBackBuffer + 1) % PVRQWS_MAX_BACK_BUFFERS; - } - return 1; - } - - /* Iterate through the visible rectangles and blit them to the screen */ - if (!repaintOnly) { - index = drawable->currentBackBuffer; - } else { - index = (drawable->currentBackBuffer + PVRQWS_MAX_BACK_BUFFERS - 1) - % PVRQWS_MAX_BACK_BUFFERS; - } - buffer = drawable->backBuffers[index]; - rect = drawable->visibleRects; - if (drawable->usingFlipBuffers) { - PVR2DPresentFlip(pvrQwsDisplay.context, pvrQwsDisplay.flipChain, buffer, 0); - } else if (pvrQwsDisplay.usePresentBlit && drawable->numVisibleRects > 0) { - PVR2DRECT pvrRects[PVRQWS_MAX_VISIBLE_RECTS]; - for (index = 0; index < drawable->numVisibleRects; ++index, ++rect) { - pvrRects[index].left = rect->x; - pvrRects[index].top = rect->y; - pvrRects[index].right = rect->x + rect->width; - pvrRects[index].bottom = rect->y + rect->height; - } - for (index = 0; index < drawable->numVisibleRects; index += 4) { - int numClip = drawable->numVisibleRects - index; - if (numClip > 4) /* No more than 4 clip rects at a time */ - numClip = 4; - PVR2DSetPresentBltProperties - (pvrQwsDisplay.context, - PVR2D_PRESENT_PROPERTY_SRCSTRIDE | - PVR2D_PRESENT_PROPERTY_DSTSIZE | - PVR2D_PRESENT_PROPERTY_DSTPOS | - PVR2D_PRESENT_PROPERTY_CLIPRECTS, - drawable->strideBytes, - drawable->rect.width, drawable->rect.height, - drawable->rect.x, drawable->rect.y, - numClip, pvrRects + index, 0); - PVR2DPresentBlt(pvrQwsDisplay.context, buffer, 0); - } - PVR2DQueryBlitsComplete(pvrQwsDisplay.context, buffer, 1); - } else { - /* TODO: use PVR2DBltClipped for faster transfers of clipped windows */ - PVR2DBLTINFO blit; - for (index = 0; index < drawable->numVisibleRects; ++index, ++rect) { - memset(&blit, 0, sizeof(blit)); - - blit.CopyCode = PVR2DROPcopy; - blit.BlitFlags = PVR2D_BLIT_DISABLE_ALL; - - blit.pSrcMemInfo = buffer; - blit.SrcStride = drawable->strideBytes; - blit.SrcX = rect->x - drawable->rect.x; - blit.SrcY = rect->y - drawable->rect.y; - blit.SizeX = rect->width; - blit.SizeY = rect->height; - blit.SrcFormat = drawable->pixelFormat; - - blit.pDstMemInfo = pvrQwsDisplay.screens[drawable->screen].frameBuffer; - blit.DstStride = pvrQwsDisplay.screens[drawable->screen].screenStride; - blit.DstX = rect->x; - blit.DstY = rect->y; - blit.DSizeX = rect->width; - blit.DSizeY = rect->height; - blit.DstFormat = pvrQwsDisplay.screens[drawable->screen].pixelFormat; - - PVR2DBlt(pvrQwsDisplay.context, &blit); - } - } - - /* Swap the buffers */ - if (!repaintOnly) { - drawable->currentBackBuffer - = (drawable->currentBackBuffer + 1) % PVRQWS_MAX_BACK_BUFFERS; - } - return 1; -} - -void pvrQwsSetSwapFunction - (PvrQwsDrawable *drawable, PvrQwsSwapFunction func, void *userData) -{ - drawable->swapFunction = func; - drawable->userData = userData; -} |