Code drop from //branches/cupcake/...@124589
diff --git a/opengl/tests/sfsim/egl_surface.cpp b/opengl/tests/sfsim/egl_surface.cpp
new file mode 100644
index 0000000..b0777f8
--- /dev/null
+++ b/opengl/tests/sfsim/egl_surface.cpp
@@ -0,0 +1,346 @@
+/*
+ **
+ ** Copyright 2008 The Android Open Source Project
+ **
+ ** Licensed under the Apache License Version 2.0(the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing software
+ ** distributed under the License is distributed on an "AS IS" BASIS
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include <GLES/egl.h>
+
+#include "egl_surface.h"
+
+#define LOGI(x...) do { printf("INFO: " x); } while (0)
+#define LOGW(x...) do { printf("WARN: " x); } while (0)
+#define LOGE(x...) do { printf("ERR: " x); } while (0)
+
+// ----------------------------------------------------------------------------
+
+egl_native_window_t* android_createDisplaySurface()
+{
+ egl_native_window_t* s = new android::EGLDisplaySurface();
+ s->memory_type = NATIVE_MEMORY_TYPE_GPU;
+ return s;
+}
+
+#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
+#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+EGLDisplaySurface::EGLDisplaySurface()
+ : EGLNativeSurface<EGLDisplaySurface>()
+{
+ egl_native_window_t::version = sizeof(egl_native_window_t);
+ egl_native_window_t::ident = 0;
+ egl_native_window_t::incRef = &EGLDisplaySurface::hook_incRef;
+ egl_native_window_t::decRef = &EGLDisplaySurface::hook_decRef;
+ egl_native_window_t::swapBuffers = &EGLDisplaySurface::hook_swapBuffers;
+ egl_native_window_t::setSwapRectangle = &EGLDisplaySurface::hook_setSwapRectangle;
+ egl_native_window_t::nextBuffer = &EGLDisplaySurface::hook_nextBuffer;
+ egl_native_window_t::connect = 0;
+ egl_native_window_t::disconnect = 0;
+
+ mFb[0].data = 0;
+ mFb[1].data = 0;
+ egl_native_window_t::fd = mapFrameBuffer();
+ if (egl_native_window_t::fd >= 0) {
+ const float in2mm = 25.4f;
+ float refreshRate = 1000000000000000LLU / (
+ float( mInfo.upper_margin + mInfo.lower_margin + mInfo.yres )
+ * ( mInfo.left_margin + mInfo.right_margin + mInfo.xres )
+ * mInfo.pixclock);
+
+ const GGLSurface& buffer = mFb[1 - mIndex];
+ egl_native_window_t::width = buffer.width;
+ egl_native_window_t::height = buffer.height;
+ egl_native_window_t::stride = buffer.stride;
+ egl_native_window_t::format = buffer.format;
+ egl_native_window_t::base = intptr_t(mFb[0].data);
+ egl_native_window_t::offset =
+ intptr_t(buffer.data) - egl_native_window_t::base;
+ egl_native_window_t::flags = 0;
+ egl_native_window_t::xdpi = (mInfo.xres * in2mm) / mInfo.width;
+ egl_native_window_t::ydpi = (mInfo.yres * in2mm) / mInfo.height;
+ egl_native_window_t::fps = refreshRate;
+ egl_native_window_t::memory_type = NATIVE_MEMORY_TYPE_FB;
+ // no error, set the magic word
+ egl_native_window_t::magic = 0x600913;
+ }
+ mSwapCount = -1;
+ mPageFlipCount = 0;
+}
+
+EGLDisplaySurface::~EGLDisplaySurface()
+{
+ magic = 0;
+ close(egl_native_window_t::fd);
+ munmap(mFb[0].data, mSize);
+ if (!(mFlags & PAGE_FLIP))
+ free((void*)mFb[1].data);
+}
+
+void EGLDisplaySurface::hook_incRef(NativeWindowType window) {
+ EGLDisplaySurface* that = static_cast<EGLDisplaySurface*>(window);
+ that->incStrong(that);
+}
+void EGLDisplaySurface::hook_decRef(NativeWindowType window) {
+ EGLDisplaySurface* that = static_cast<EGLDisplaySurface*>(window);
+ that->decStrong(that);
+}
+uint32_t EGLDisplaySurface::hook_swapBuffers(NativeWindowType window) {
+ EGLDisplaySurface* that = static_cast<EGLDisplaySurface*>(window);
+ return that->swapBuffers();
+}
+uint32_t EGLDisplaySurface::hook_nextBuffer(NativeWindowType window) {
+ EGLDisplaySurface* that = static_cast<EGLDisplaySurface*>(window);
+ return that->nextBuffer();
+}
+void EGLDisplaySurface::hook_setSwapRectangle(NativeWindowType window,
+ int l, int t, int w, int h) {
+ EGLDisplaySurface* that = static_cast<EGLDisplaySurface*>(window);
+ that->setSwapRectangle(l, t, w, h);
+}
+
+void EGLDisplaySurface::setSwapRectangle(int l, int t, int w, int h)
+{
+ mInfo.reserved[0] = 0x54445055; // "UPDT";
+ mInfo.reserved[1] = (uint16_t)l | ((uint32_t)t << 16);
+ mInfo.reserved[2] = (uint16_t)(l+w) | ((uint32_t)(t+h) << 16);
+}
+
+uint32_t EGLDisplaySurface::swapBuffers()
+{
+ if (!(mFlags & PAGE_FLIP))
+ return 0;
+
+ // do the actual flip
+ mIndex = 1 - mIndex;
+ mInfo.activate = FB_ACTIVATE_VBL;
+ mInfo.yoffset = mIndex ? mInfo.yres : 0;
+ if (ioctl(egl_native_window_t::fd, FBIOPUT_VSCREENINFO, &mInfo) == -1) {
+ LOGE("FBIOPUT_VSCREENINFO failed");
+ return 0;
+ }
+
+ /*
+ * this is a monstruous hack: Because the h/w accelerator is not able
+ * to render directly into the framebuffer, we need to copy its
+ * internal framebuffer out to the fb. the base address of the internal fb
+ * is given in oem[0].
+ * All this is needed only in standalone mode, in SurfaceFlinger mode
+ * we control where the GPU renders.
+ */
+ if (egl_native_window_t::memory_type == NATIVE_MEMORY_TYPE_GPU && oem[0]) {
+ // could use MDP here, but that's tricky because we need
+ // /dev/pmem_gpu* filedescriptor
+ const GGLSurface& buffer = mFb[mIndex];
+ memcpy( buffer.data,
+ (void*)(oem[0] + egl_native_window_t::offset),
+ buffer.stride*buffer.height*2);
+ }
+
+ // update the address of the buffer to draw to next
+ const GGLSurface& buffer = mFb[1 - mIndex];
+ egl_native_window_t::offset =
+ intptr_t(buffer.data) - egl_native_window_t::base;
+
+ mPageFlipCount++;
+
+ // We don't support screen-size changes for now
+ return 0;
+}
+
+int32_t EGLDisplaySurface::getPageFlipCount() const
+{
+ return mPageFlipCount;
+}
+
+uint32_t EGLDisplaySurface::nextBuffer()
+{
+ // update the address of the buffer to draw to next
+ const GGLSurface& buffer = mFb[mIndex];
+ egl_native_window_t::offset =
+ intptr_t(buffer.data) - egl_native_window_t::base;
+ return 0;
+}
+
+int EGLDisplaySurface::mapFrameBuffer()
+{
+ char const * const device_template[] = {
+ "/dev/graphics/fb%u",
+ "/dev/fb%u",
+ 0 };
+ int fd = -1;
+ int i=0;
+ char name[64];
+ while ((fd==-1) && device_template[i]) {
+ snprintf(name, 64, device_template[i], 0);
+ fd = open(name, O_RDWR, 0);
+ i++;
+ }
+ if (fd < 0)
+ return -errno;
+
+ struct fb_fix_screeninfo finfo;
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
+ return -errno;
+
+ struct fb_var_screeninfo info;
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
+ return -errno;
+
+ info.reserved[0] = 0;
+ info.reserved[1] = 0;
+ info.reserved[2] = 0;
+ info.xoffset = 0;
+ info.yoffset = 0;
+ info.yres_virtual = info.yres * 2;
+ info.bits_per_pixel = 16;
+ info.activate = FB_ACTIVATE_NOW;
+
+ uint32_t flags = PAGE_FLIP;
+ if (ioctl(fd, FBIOPUT_VSCREENINFO, &info) == -1) {
+ info.yres_virtual = info.yres;
+ flags &= ~PAGE_FLIP;
+ LOGW("FBIOPUT_VSCREENINFO failed, page flipping not supported");
+ }
+
+ if (info.yres_virtual < info.yres * 2) {
+ info.yres_virtual = info.yres;
+ flags &= ~PAGE_FLIP;
+ LOGW("page flipping not supported (yres_virtual=%d, requested=%d)",
+ info.yres_virtual, info.yres*2);
+ }
+
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
+ return -errno;
+
+ int refreshRate = 1000000000000000LLU /
+ (
+ uint64_t( info.upper_margin + info.lower_margin + info.yres )
+ * ( info.left_margin + info.right_margin + info.xres )
+ * info.pixclock
+ );
+
+ if (refreshRate == 0) {
+ // bleagh, bad info from the driver
+ refreshRate = 60*1000; // 60 Hz
+ }
+
+ if (int(info.width) <= 0 || int(info.height) <= 0) {
+ // stupid driver, doesn't return that information
+ // default to Sooner's screen size (160 dpi)
+ info.width = 51;
+ info.height = 38;
+ }
+
+ float xdpi = (info.xres * 25.4f) / info.width;
+ float ydpi = (info.yres * 25.4f) / info.height;
+ float fps = refreshRate / 1000.0f;
+
+ LOGI( "using (fd=%d)\n"
+ "id = %s\n"
+ "xres = %d px\n"
+ "yres = %d px\n"
+ "xres_virtual = %d px\n"
+ "yres_virtual = %d px\n"
+ "bpp = %d\n"
+ "r = %2u:%u\n"
+ "g = %2u:%u\n"
+ "b = %2u:%u\n",
+ fd,
+ finfo.id,
+ info.xres,
+ info.yres,
+ info.xres_virtual,
+ info.yres_virtual,
+ info.bits_per_pixel,
+ info.red.offset, info.red.length,
+ info.green.offset, info.green.length,
+ info.blue.offset, info.blue.length
+ );
+
+ LOGI( "width = %d mm (%f dpi)\n"
+ "height = %d mm (%f dpi)\n"
+ "refresh rate = %.2f Hz\n",
+ info.width, xdpi,
+ info.height, ydpi,
+ fps
+ );
+
+
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
+ return -errno;
+
+ if (finfo.smem_len <= 0)
+ return -errno;
+
+ /*
+ * Open and map the display.
+ */
+
+ void* buffer = (uint16_t*) mmap(
+ 0, finfo.smem_len,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED,
+ fd, 0);
+
+ if (buffer == MAP_FAILED)
+ return -errno;
+
+ // at least for now, always clear the fb
+ memset(buffer, 0, finfo.smem_len);
+
+ uint8_t* offscreen[2];
+ offscreen[0] = (uint8_t*)buffer;
+ if (flags & PAGE_FLIP) {
+ offscreen[1] = (uint8_t*)buffer + finfo.line_length*info.yres;
+ } else {
+ offscreen[1] = (uint8_t*)malloc(finfo.smem_len);
+ if (offscreen[1] == 0) {
+ munmap(buffer, finfo.smem_len);
+ return -ENOMEM;
+ }
+ }
+
+ mFlags = flags;
+ mInfo = info;
+ mFinfo = finfo;
+ mSize = finfo.smem_len;
+ mIndex = 0;
+ for (int i=0 ; i<2 ; i++) {
+ mFb[i].version = sizeof(GGLSurface);
+ mFb[i].width = info.xres;
+ mFb[i].height = info.yres;
+ mFb[i].stride = finfo.line_length / (info.bits_per_pixel >> 3);
+ mFb[i].data = (uint8_t*)(offscreen[i]);
+ mFb[i].format = NATIVE_PIXEL_FORMAT_RGB_565;
+ }
+ return fd;
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+// ----------------------------------------------------------------------------