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authorEthan Yonker <dees_troy@teamw.in>2015-12-28 21:54:50 +0100
committerEthan Yonker <dees_troy@teamw.in>2016-01-27 17:53:13 +0100
commitfbb4353a247157d32208f8f133cd1ee42f4fbc49 (patch)
tree6f819fbdd21f2adef4f7ba4a5b4d02054cc02f29 /minuitwrp/graphics_adf.cpp
parentAdopted Storage support (diff)
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Diffstat (limited to 'minuitwrp/graphics_adf.cpp')
-rw-r--r--minuitwrp/graphics_adf.cpp285
1 files changed, 285 insertions, 0 deletions
diff --git a/minuitwrp/graphics_adf.cpp b/minuitwrp/graphics_adf.cpp
new file mode 100644
index 000000000..b71bed2a8
--- /dev/null
+++ b/minuitwrp/graphics_adf.cpp
@@ -0,0 +1,285 @@
+/*
+ * Copyright (C) 2014 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 <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/cdefs.h>
+#include <sys/mman.h>
+
+#include <adf/adf.h>
+
+#include "graphics.h"
+#include <pixelflinger/pixelflinger.h>
+
+struct adf_surface_pdata {
+ GRSurface base;
+ int fd;
+ __u32 offset;
+ __u32 pitch;
+ unsigned char* adf_data;
+};
+
+struct adf_pdata {
+ minui_backend base;
+ int intf_fd;
+ adf_id_t eng_id;
+ __u32 format;
+
+ unsigned int current_surface;
+ unsigned int n_surfaces;
+ adf_surface_pdata surfaces[2];
+};
+
+static GRSurface* adf_flip(minui_backend *backend);
+static void adf_blank(minui_backend *backend, bool blank);
+
+static int adf_surface_init(adf_pdata *pdata, drm_mode_modeinfo *mode, adf_surface_pdata *surf) {
+ memset(surf, 0, sizeof(*surf));
+
+ surf->fd = adf_interface_simple_buffer_alloc(pdata->intf_fd, mode->hdisplay,
+ mode->vdisplay, pdata->format, &surf->offset, &surf->pitch);
+ if (surf->fd < 0)
+ return surf->fd;
+
+ surf->base.width = mode->hdisplay;
+ surf->base.height = mode->vdisplay;
+ surf->base.row_bytes = surf->pitch;
+ surf->base.pixel_bytes = (pdata->format == DRM_FORMAT_RGB565) ? 2 : 4;
+ if (pdata->format == DRM_FORMAT_ABGR8888)
+ surf->base.format = GGL_PIXEL_FORMAT_BGRA_8888;
+ else if (pdata->format == DRM_FORMAT_BGRA8888)
+ surf->base.format = GGL_PIXEL_FORMAT_BGRA_8888;
+ else if (pdata->format == DRM_FORMAT_RGBA8888)
+ surf->base.format = GGL_PIXEL_FORMAT_RGBA_8888;
+ else if (pdata->format == DRM_FORMAT_RGBX8888)
+ surf->base.format = GGL_PIXEL_FORMAT_RGBX_8888;
+ else
+ surf->base.format = GGL_PIXEL_FORMAT_RGB_565;
+
+ surf->adf_data = reinterpret_cast<uint8_t*>(mmap(NULL,
+ surf->pitch * surf->base.height, PROT_WRITE,
+ MAP_SHARED, surf->fd, surf->offset));
+ if (surf->adf_data == MAP_FAILED) {
+ close(surf->fd);
+ return -errno;
+ }
+
+ return 0;
+}
+
+static int adf_interface_init(adf_pdata *pdata)
+{
+ adf_interface_data intf_data;
+ int ret = 0;
+ int err;
+ unsigned char* framebuffer_data = NULL;
+
+ err = adf_get_interface_data(pdata->intf_fd, &intf_data);
+ if (err < 0)
+ return err;
+
+ err = adf_surface_init(pdata, &intf_data.current_mode, &pdata->surfaces[0]);
+ if (err < 0) {
+ fprintf(stderr, "allocating surface 0 failed: %s\n", strerror(-err));
+ ret = err;
+ goto done;
+ }
+
+ /* Allocate a single buffer for drawing. graphics.cpp will draw to
+ * this buffer which will later be copied to the mmapped adf buffer.
+ * Using a regular memory buffer improves performance by about 10x. */
+ framebuffer_data = (unsigned char*)calloc(pdata->surfaces[0].pitch * pdata->surfaces[0].base.height, 1);
+ if (framebuffer_data == NULL) {
+ printf("failed to calloc surface data\n");
+ close(pdata->surfaces[0].fd);
+ munmap(pdata->surfaces[0].adf_data, pdata->surfaces[0].pitch * pdata->surfaces[0].base.height);
+ ret = -1;
+ goto done;
+ }
+ pdata->surfaces[0].base.data = framebuffer_data;
+
+ err = adf_surface_init(pdata, &intf_data.current_mode,
+ &pdata->surfaces[1]);
+ if (err < 0) {
+ fprintf(stderr, "allocating surface 1 failed: %s\n", strerror(-err));
+ memset(&pdata->surfaces[1], 0, sizeof(pdata->surfaces[1]));
+ pdata->n_surfaces = 1;
+ } else {
+ pdata->n_surfaces = 2;
+ pdata->surfaces[1].base.data = framebuffer_data;
+ }
+
+done:
+ adf_free_interface_data(&intf_data);
+ return ret;
+}
+
+static int adf_device_init(adf_pdata *pdata, adf_device *dev)
+{
+ adf_id_t intf_id;
+ int intf_fd;
+ int err;
+
+ err = adf_find_simple_post_configuration(dev, &pdata->format, 1, &intf_id,
+ &pdata->eng_id);
+ if (err < 0)
+ return err;
+
+ err = adf_device_attach(dev, pdata->eng_id, intf_id);
+ if (err < 0 && err != -EALREADY)
+ return err;
+
+ pdata->intf_fd = adf_interface_open(dev, intf_id, O_RDWR);
+ if (pdata->intf_fd < 0)
+ return pdata->intf_fd;
+
+ err = adf_interface_init(pdata);
+ if (err < 0) {
+ close(pdata->intf_fd);
+ pdata->intf_fd = -1;
+ }
+
+ return err;
+}
+
+static GRSurface* adf_init(minui_backend *backend)
+{
+ adf_pdata *pdata = (adf_pdata *)backend;
+ adf_id_t *dev_ids = NULL;
+ ssize_t n_dev_ids, i;
+ GRSurface* ret;
+
+#if defined(RECOVERY_ABGR)
+ pdata->format = DRM_FORMAT_ABGR8888;
+ printf("setting DRM_FORMAT_ABGR8888 and GGL_PIXEL_FORMAT_BGRA_8888, GGL_PIXEL_FORMAT may not match!\n");
+#elif defined(RECOVERY_BGRA)
+ pdata->format = DRM_FORMAT_BGRA8888;
+ printf("setting DRM_FORMAT_BGRA8888 and GGL_PIXEL_FORMAT_BGRA_8888\n");
+#elif defined(RECOVERY_RGBA)
+ pdata->format = DRM_FORMAT_RGBA8888;
+ printf("setting DRM_FORMAT_RGBA8888 and GGL_PIXEL_FORMAT_RGBA_8888\n");
+#elif defined(RECOVERY_RGBX)
+ pdata->format = DRM_FORMAT_RGBX8888;
+ printf("setting DRM_FORMAT_RGBX8888 and GGL_PIXEL_FORMAT_RGBX_8888\n");
+#else
+ pdata->format = DRM_FORMAT_RGB565;
+ printf("setting DRM_FORMAT_RGB565 and GGL_PIXEL_FORMAT_RGB_565\n");
+#endif
+
+ n_dev_ids = adf_devices(&dev_ids);
+ if (n_dev_ids == 0) {
+ return NULL;
+ } else if (n_dev_ids < 0) {
+ fprintf(stderr, "enumerating adf devices failed: %s\n",
+ strerror(-n_dev_ids));
+ return NULL;
+ }
+
+ pdata->intf_fd = -1;
+
+ for (i = 0; i < n_dev_ids && pdata->intf_fd < 0; i++) {
+ adf_device dev;
+
+ int err = adf_device_open(dev_ids[i], O_RDWR, &dev);
+ if (err < 0) {
+ fprintf(stderr, "opening adf device %u failed: %s\n", dev_ids[i],
+ strerror(-err));
+ continue;
+ }
+
+ err = adf_device_init(pdata, &dev);
+ if (err < 0)
+ fprintf(stderr, "initializing adf device %u failed: %s\n",
+ dev_ids[i], strerror(-err));
+
+ adf_device_close(&dev);
+ }
+
+ free(dev_ids);
+
+ if (pdata->intf_fd < 0)
+ return NULL;
+
+ ret = adf_flip(backend);
+
+ adf_blank(backend, true);
+ adf_blank(backend, false);
+
+ return ret;
+}
+
+static GRSurface* adf_flip(minui_backend *backend)
+{
+ adf_pdata *pdata = (adf_pdata *)backend;
+ adf_surface_pdata *surf = &pdata->surfaces[pdata->current_surface];
+
+ memcpy(surf->adf_data, surf->base.data, surf->pitch * surf->base.height);
+ int fence_fd = adf_interface_simple_post(pdata->intf_fd, pdata->eng_id,
+ surf->base.width, surf->base.height, pdata->format, surf->fd,
+ surf->offset, surf->pitch, -1);
+ if (fence_fd >= 0)
+ close(fence_fd);
+
+ pdata->current_surface = (pdata->current_surface + 1) % pdata->n_surfaces;
+ return &pdata->surfaces[pdata->current_surface].base;
+}
+
+static void adf_blank(minui_backend *backend, bool blank)
+{
+ adf_pdata *pdata = (adf_pdata *)backend;
+ adf_interface_blank(pdata->intf_fd,
+ blank ? DRM_MODE_DPMS_OFF : DRM_MODE_DPMS_ON);
+}
+
+static void adf_surface_destroy(adf_surface_pdata *surf)
+{
+ munmap(surf->adf_data, surf->pitch * surf->base.height);
+ close(surf->fd);
+}
+
+static void adf_exit(minui_backend *backend)
+{
+ adf_pdata *pdata = (adf_pdata *)backend;
+ unsigned int i;
+
+ free(pdata->surfaces[0].base.data);
+ for (i = 0; i < pdata->n_surfaces; i++)
+ adf_surface_destroy(&pdata->surfaces[i]);
+ if (pdata->intf_fd >= 0)
+ close(pdata->intf_fd);
+ free(pdata);
+}
+
+minui_backend *open_adf()
+{
+ adf_pdata* pdata = reinterpret_cast<adf_pdata*>(calloc(1, sizeof(*pdata)));
+ if (!pdata) {
+ perror("allocating adf backend failed");
+ return NULL;
+ }
+
+ pdata->base.init = adf_init;
+ pdata->base.flip = adf_flip;
+ pdata->base.blank = adf_blank;
+ pdata->base.exit = adf_exit;
+ return &pdata->base;
+}