447 lines
12 KiB
C++
447 lines
12 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "SurfaceFlinger"
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <cutils/log.h>
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#include <utils/Errors.h>
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#if HAVE_ANDROID_OS
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#include <linux/fb.h>
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#include <linux/msm_mdp.h>
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#endif
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#include <ui/BlitHardware.h>
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/******************************************************************************/
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namespace android {
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class CopybitMSM7K : public copybit_t {
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public:
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CopybitMSM7K();
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~CopybitMSM7K();
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status_t getStatus() const {
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if (mFD<0) return mFD;
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return NO_ERROR;
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}
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status_t setParameter(int name, int value);
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status_t get(int name);
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status_t blit(
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const copybit_image_t& dst,
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const copybit_image_t& src,
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copybit_region_t const* region);
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status_t stretch(
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const copybit_image_t& dst,
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const copybit_image_t& src,
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const copybit_rect_t& dst_rect,
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const copybit_rect_t& src_rect,
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copybit_region_t const* region);
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#if HAVE_ANDROID_OS
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private:
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static int copybit_set_parameter(copybit_t* handle, int name, int value);
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static int copybit_blit( copybit_t* handle,
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copybit_image_t const* dst, copybit_image_t const* src,
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copybit_region_t const* region);
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static int copybit_stretch(copybit_t* handle,
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copybit_image_t const* dst, copybit_image_t const* src,
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copybit_rect_t const* dst_rect, copybit_rect_t const* src_rect,
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copybit_region_t const* region);
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static int copybit_get(copybit_t* handle, int name);
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int getFormat(int format);
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void setImage(mdp_img* img, const copybit_image_t& rhs);
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void setRects(mdp_blit_req* req, const copybit_rect_t& dst,
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const copybit_rect_t& src, const copybit_rect_t& scissor);
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void setInfos(mdp_blit_req* req);
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static void intersect(copybit_rect_t* out,
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const copybit_rect_t& lhs, const copybit_rect_t& rhs);
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status_t msm_copybit(void const* list);
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#endif
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int mFD;
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uint8_t mAlpha;
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uint8_t mFlags;
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};
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}; // namespace android
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using namespace android;
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/******************************************************************************/
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struct copybit_t* copybit_init()
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{
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CopybitMSM7K* engine = new CopybitMSM7K();
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if (engine->getStatus() != NO_ERROR) {
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delete engine;
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engine = 0;
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}
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return (struct copybit_t*)engine;
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}
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int copybit_term(copybit_t* handle)
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{
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delete static_cast<CopybitMSM7K*>(handle);
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return NO_ERROR;
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}
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namespace android {
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/******************************************************************************/
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static inline
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int min(int a, int b) {
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return (a<b) ? a : b;
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}
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static inline
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int max(int a, int b) {
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return (a>b) ? a : b;
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}
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static inline
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void MULDIV(uint32_t& a, uint32_t& b, int mul, int div)
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{
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if (mul != div) {
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a = (mul * a) / div;
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b = (mul * b) / div;
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}
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}
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//-----------------------------------------------------------------------------
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#if HAVE_ANDROID_OS
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int CopybitMSM7K::copybit_set_parameter(copybit_t* handle, int name, int value)
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{
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return static_cast<CopybitMSM7K*>(handle)->setParameter(name, value);
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}
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int CopybitMSM7K::copybit_get(copybit_t* handle, int name)
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{
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return static_cast<CopybitMSM7K*>(handle)->get(name);
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}
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int CopybitMSM7K::copybit_blit(
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copybit_t* handle,
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copybit_image_t const* dst,
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copybit_image_t const* src,
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struct copybit_region_t const* region)
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{
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return static_cast<CopybitMSM7K*>(handle)->blit(*dst, *src, region);
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}
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int CopybitMSM7K::copybit_stretch(
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copybit_t* handle,
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copybit_image_t const* dst,
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copybit_image_t const* src,
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copybit_rect_t const* dst_rect,
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copybit_rect_t const* src_rect,
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struct copybit_region_t const* region)
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{
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return static_cast<CopybitMSM7K*>(handle)->stretch(
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*dst, *src, *dst_rect, *src_rect, region);
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}
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//-----------------------------------------------------------------------------
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CopybitMSM7K::CopybitMSM7K()
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: mFD(-1), mAlpha(MDP_ALPHA_NOP), mFlags(0)
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{
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int fd = open("/dev/graphics/fb0", O_RDWR, 0);
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if (fd > 0) {
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struct fb_fix_screeninfo finfo;
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if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == 0) {
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if (!strcmp(finfo.id, "msmfb")) {
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mFD = fd;
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copybit_t::set_parameter = copybit_set_parameter;
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copybit_t::get = copybit_get;
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copybit_t::blit = copybit_blit;
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copybit_t::stretch = copybit_stretch;
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}
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}
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}
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if (fd<0 || mFD<0) {
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if (fd>0) { close(fd); }
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mFD = -errno;
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}
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}
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CopybitMSM7K::~CopybitMSM7K()
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{
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if (mFD > 0){
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close(mFD);
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}
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}
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status_t CopybitMSM7K::setParameter(int name, int value)
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{
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switch(name) {
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case COPYBIT_ROTATION_DEG:
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switch (value) {
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case 0:
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mFlags &= ~0x7;
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break;
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case 90:
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mFlags &= ~0x7;
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mFlags |= MDP_ROT_90;
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break;
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case 180:
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mFlags &= ~0x7;
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mFlags |= MDP_ROT_180;
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break;
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case 270:
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mFlags &= ~0x7;
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mFlags |= MDP_ROT_270;
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break;
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default:
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return BAD_VALUE;
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}
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break;
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case COPYBIT_PLANE_ALPHA:
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if (value < 0) value = 0;
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if (value >= 256) value = 255;
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mAlpha = value;
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break;
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case COPYBIT_DITHER:
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if (value == COPYBIT_ENABLE) {
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mFlags |= MDP_DITHER;
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} else if (value == COPYBIT_DISABLE) {
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mFlags &= ~MDP_DITHER;
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}
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break;
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case COPYBIT_TRANSFORM:
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mFlags &= ~0x7;
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mFlags |= value & 0x7;
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break;
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default:
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return BAD_VALUE;
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}
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return NO_ERROR;
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}
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status_t CopybitMSM7K::get(int name)
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{
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switch(name) {
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case COPYBIT_MINIFICATION_LIMIT:
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return 4;
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case COPYBIT_MAGNIFICATION_LIMIT:
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return 4;
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case COPYBIT_SCALING_FRAC_BITS:
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return 32;
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case COPYBIT_ROTATION_STEP_DEG:
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return 90;
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}
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return BAD_VALUE;
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}
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status_t CopybitMSM7K::blit(
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const copybit_image_t& dst,
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const copybit_image_t& src,
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copybit_region_t const* region)
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{
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copybit_rect_t dr = { 0, 0, dst.w, dst.h };
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copybit_rect_t sr = { 0, 0, src.w, src.h };
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return CopybitMSM7K::stretch(dst, src, dr, sr, region);
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}
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status_t CopybitMSM7K::stretch(
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const copybit_image_t& dst,
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const copybit_image_t& src,
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const copybit_rect_t& dst_rect,
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const copybit_rect_t& src_rect,
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copybit_region_t const* region)
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{
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struct {
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uint32_t count;
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struct mdp_blit_req req[12];
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} list;
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if (mAlpha<255) {
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switch (src.format) {
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// we dont' support plane alpha with RGBA formats
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case COPYBIT_RGBA_8888:
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case COPYBIT_RGBA_5551:
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case COPYBIT_RGBA_4444:
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return INVALID_OPERATION;
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}
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}
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const uint32_t maxCount = sizeof(list.req)/sizeof(list.req[0]);
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const copybit_rect_t bounds = { 0, 0, dst.w, dst.h };
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copybit_rect_t clip;
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list.count = 0;
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int err = 0;
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while (!err && region->next(region, &clip)) {
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intersect(&clip, bounds, clip);
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setInfos(&list.req[list.count]);
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setImage(&list.req[list.count].dst, dst);
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setImage(&list.req[list.count].src, src);
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setRects(&list.req[list.count], dst_rect, src_rect, clip);
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if (++list.count == maxCount) {
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err = msm_copybit(&list);
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list.count = 0;
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}
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}
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if (!err && list.count) {
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err = msm_copybit(&list);
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}
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return err;
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}
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status_t CopybitMSM7K::msm_copybit(void const* list)
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{
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int err = ioctl(mFD, MSMFB_BLIT, static_cast<mdp_blit_req_list const*>(list));
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LOGE_IF(err<0, "copyBits failed (%s)", strerror(errno));
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if (err == 0)
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return NO_ERROR;
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return -errno;
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}
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int CopybitMSM7K::getFormat(int format)
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{
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switch (format) {
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case COPYBIT_RGBA_8888: return MDP_RGBA_8888;
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case COPYBIT_RGB_565: return MDP_RGB_565;
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case COPYBIT_YCbCr_422_SP: return MDP_Y_CBCR_H2V1;
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case COPYBIT_YCbCr_420_SP: return MDP_Y_CBCR_H2V2;
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}
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return -1;
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}
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void CopybitMSM7K::setInfos(mdp_blit_req* req)
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{
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req->alpha = mAlpha;
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req->transp_mask = MDP_TRANSP_NOP;
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req->flags = mFlags;
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}
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void CopybitMSM7K::setImage(mdp_img* img, const copybit_image_t& rhs)
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{
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img->width = rhs.w;
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img->height = rhs.h;
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img->format = getFormat(rhs.format);
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img->offset = rhs.offset;
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img->memory_id = rhs.fd;
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}
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void CopybitMSM7K::setRects(mdp_blit_req* e,
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const copybit_rect_t& dst, const copybit_rect_t& src,
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const copybit_rect_t& scissor)
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{
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copybit_rect_t clip;
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intersect(&clip, scissor, dst);
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e->dst_rect.x = clip.l;
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e->dst_rect.y = clip.t;
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e->dst_rect.w = clip.r - clip.l;
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e->dst_rect.h = clip.b - clip.t;
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uint32_t W, H;
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if (mFlags & COPYBIT_TRANSFORM_ROT_90) {
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e->src_rect.x = (clip.t - dst.t) + src.t;
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e->src_rect.y = (dst.r - clip.r) + src.l;
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e->src_rect.w = (clip.b - clip.t);
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e->src_rect.h = (clip.r - clip.l);
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W = dst.b - dst.t;
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H = dst.r - dst.l;
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} else {
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e->src_rect.x = (clip.l - dst.l) + src.l;
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e->src_rect.y = (clip.t - dst.t) + src.t;
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e->src_rect.w = (clip.r - clip.l);
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e->src_rect.h = (clip.b - clip.t);
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W = dst.r - dst.l;
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H = dst.b - dst.t;
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}
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MULDIV(e->src_rect.x, e->src_rect.w, src.r - src.l, W);
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MULDIV(e->src_rect.y, e->src_rect.h, src.b - src.t, H);
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if (mFlags & COPYBIT_TRANSFORM_FLIP_V) {
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e->src_rect.y = e->src.height - (e->src_rect.y + e->src_rect.h);
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}
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if (mFlags & COPYBIT_TRANSFORM_FLIP_H) {
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e->src_rect.x = e->src.width - (e->src_rect.x + e->src_rect.w);
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}
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}
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void CopybitMSM7K::intersect(copybit_rect_t* out,
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const copybit_rect_t& lhs, const copybit_rect_t& rhs)
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{
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out->l = max(lhs.l, rhs.l);
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out->t = max(lhs.t, rhs.t);
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out->r = min(lhs.r, rhs.r);
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out->b = min(lhs.b, rhs.b);
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}
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/******************************************************************************/
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#else // HAVE_ANDROID_OS
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CopybitMSM7K::CopybitMSM7K()
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: mFD(-1)
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{
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}
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CopybitMSM7K::~CopybitMSM7K()
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{
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}
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status_t CopybitMSM7K::setParameter(int name, int value)
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{
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return NO_INIT;
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}
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status_t CopybitMSM7K::get(int name)
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{
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return BAD_VALUE;
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}
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status_t CopybitMSM7K::blit(
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const copybit_image_t& dst,
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const copybit_image_t& src,
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copybit_region_t const* region)
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{
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return NO_INIT;
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}
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status_t CopybitMSM7K::stretch(
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const copybit_image_t& dst,
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const copybit_image_t& src,
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const copybit_rect_t& dst_rect,
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const copybit_rect_t& src_rect,
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copybit_region_t const* region)
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{
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return NO_INIT;
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}
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#endif // HAVE_ANDROID_OS
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/******************************************************************************/
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}; // namespace android
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