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https://github.com/tuxbox-neutrino/neutrino.git
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- pick mipsbox code from DDT, TangoCash and max10; add missing framebuffer code files
Signed-off-by: Thilo Graf <dbt@novatux.de>
This commit is contained in:
svenhoefer
222
src/driver/fb_accel_mips.cpp
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222
src/driver/fb_accel_mips.cpp
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/*
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Framebuffer acceleration hardware abstraction functions.
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The hardware dependent acceleration functions for bcm graphic chips
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are represented in this class.
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(C) 2017 TangoCash
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Derived from old neutrino-hd framebuffer code / e2 sources
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License: GPL
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <driver/fb_generic.h>
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#include <driver/fb_accel.h>
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#include <driver/fb_accel_mips.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <memory.h>
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#include <stdlib.h>
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#include <system/set_threadname.h>
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#include <gui/color.h>
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#define LOGTAG "[fb_accel_mips] "
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#define FBIO_ACCEL 0x23
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static unsigned int displaylist[1024];
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static int ptr;
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static bool supportblendingflags = true;
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#define P(x, y) do { displaylist[ptr++] = x; displaylist[ptr++] = y; } while (0)
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#define C(x) P(x, 0)
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static int fb_fd = -1;
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static int exec_list(void);
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static int exec_list(void)
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{
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int ret;
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struct
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{
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void *ptr;
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int len;
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} l;
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if (fb_fd < 0) return -1;
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l.ptr = displaylist;
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l.len = ptr;
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ret = ioctl(fb_fd, FBIO_ACCEL, &l);
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ptr = 0;
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return ret;
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}
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CFbAccelMIPS::CFbAccelMIPS()
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{
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fb_name = "mipsbox framebuffer";
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fb_fd = open(FB_DEVICE, O_RDWR);
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if (fb_fd < 0)
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{
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printf(LOGTAG "[bcm] %s %m", FB_DEVICE);
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}
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if (exec_list())
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{
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printf(LOGTAG "[bcm] interface not available - %m");
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close(fb_fd);
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fb_fd = -1;
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}
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/* now test for blending flags support */
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P(0x80, 0);
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if (exec_list())
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{
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supportblendingflags = false;
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}
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#ifdef FORCE_NO_BLENDING_ACCELERATION
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/* hardware doesn't allow us to detect whether the opcode is working */
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supportblendingflags = false;
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#endif
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}
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CFbAccelMIPS::~CFbAccelMIPS()
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{
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if (fb_fd >= 0)
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{
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close(fb_fd);
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fb_fd = -1;
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}
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}
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void CFbAccelMIPS::setOsdResolutions()
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{
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osd_resolution_t res;
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osd_resolutions.clear();
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res.xRes = 1280;
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res.yRes = 720;
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res.bpp = 32;
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res.mode = OSDMODE_720;
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osd_resolutions.push_back(res);
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if (fullHdAvailable()) {
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res.xRes = 1920;
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res.yRes = 1080;
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res.bpp = 32;
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res.mode = OSDMODE_1080;
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osd_resolutions.push_back(res);
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}
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}
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int CFbAccelMIPS::setMode(unsigned int nxRes, unsigned int nyRes, unsigned int nbpp)
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{
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if (!available&&!active)
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return -1;
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if (osd_resolutions.empty())
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setOsdResolutions();
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unsigned int nxRes_ = nxRes;
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unsigned int nyRes_ = nyRes;
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unsigned int nbpp_ = nbpp;
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if (!fullHdAvailable()) {
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nxRes_ = 1280;
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nyRes_ = 720;
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nbpp_ = 32;
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}
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screeninfo.xres=nxRes_;
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screeninfo.yres=nyRes_;
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screeninfo.xres_virtual=nxRes_;
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screeninfo.yres_virtual=nyRes_*2;
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screeninfo.height=0;
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screeninfo.width=0;
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screeninfo.xoffset=screeninfo.yoffset=0;
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screeninfo.bits_per_pixel=nbpp_;
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if (ioctl(fd, FBIOPUT_VSCREENINFO, &screeninfo)<0)
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perror(LOGTAG "FBIOPUT_VSCREENINFO");
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printf(LOGTAG "SetMode: %dbits, red %d:%d green %d:%d blue %d:%d transp %d:%d\n",
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screeninfo.bits_per_pixel, screeninfo.red.length, screeninfo.red.offset, screeninfo.green.length, screeninfo.green.offset, screeninfo.blue.length, screeninfo.blue.offset, screeninfo.transp.length, screeninfo.transp.offset);
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if ((screeninfo.xres != nxRes_) ||
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(screeninfo.yres != nyRes_) ||
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(screeninfo.bits_per_pixel != nbpp_)) {
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printf(LOGTAG "SetMode failed: wanted: %dx%dx%d, got %dx%dx%d\n",
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nxRes_, nyRes_, nbpp_,
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screeninfo.xres, screeninfo.yres, screeninfo.bits_per_pixel);
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return -1;
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}
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fb_fix_screeninfo _fix;
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if (ioctl(fd, FBIOGET_FSCREENINFO, &_fix) < 0) {
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perror(LOGTAG "FBIOGET_FSCREENINFO");
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return -1;
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}
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stride = _fix.line_length;
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swidth = stride / sizeof(fb_pixel_t);
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if (ioctl(fd, FBIOBLANK, FB_BLANK_UNBLANK) < 0)
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printf(LOGTAG "screen unblanking failed\n");
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xRes = screeninfo.xres;
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yRes = screeninfo.yres;
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bpp = screeninfo.bits_per_pixel;
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printf(LOGTAG "%dx%dx%d line length %d. using %s graphics accelerator.\n", xRes, yRes, bpp, stride, _fix.id);
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int needmem = stride * yRes * 2;
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if (available >= needmem)
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{
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backbuffer = lfb + swidth * yRes;
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return 0;
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}
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fprintf(stderr, LOGTAG "not enough FB memory (have %d, need %d)\n", available, needmem);
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backbuffer = lfb; /* will not work well, but avoid crashes */
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return 0; /* dont fail because of this */
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}
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fb_pixel_t * CFbAccelMIPS::getBackBufferPointer() const
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{
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return backbuffer;
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}
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int CFbAccelMIPS::scale2Res(int size)
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{
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/*
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The historic resolution 1280x720 is default for some values/sizes.
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So let's scale these values to other resolutions.
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*/
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#ifdef ENABLE_CHANGE_OSD_RESOLUTION
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if (screeninfo.xres == 1920)
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size += size/2;
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#endif
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return size;
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}
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bool CFbAccelMIPS::fullHdAvailable()
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{
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#ifdef ENABLE_CHANGE_OSD_RESOLUTION
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return true;
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#endif
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return false;
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}
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