X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=helpers.c;h=238563de92347961858e714390169febf54c747c;hb=27a7e6a24709564e18c3382d0aeda0b40c7ae03b;hp=a9673df4b022b6d4083462a81b54d3778fea6e83;hpb=dc94b474288cec3c8c9ca55e0f0b5ee2d681f2e7;p=android-x86%2Fexternal-minigbm.git

diff --git a/helpers.c b/helpers.c
index a9673df..238563d 100644
--- a/helpers.c
+++ b/helpers.c
@@ -1,150 +1,549 @@
 /*
- * Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
+ * Copyright 2014 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+#include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#include <sys/mman.h>
 #include <xf86drm.h>
+#include <xf86drmMode.h>
 
-#include "gbm_priv.h"
+#include "drv_priv.h"
 #include "helpers.h"
+#include "util.h"
 
-int gbm_bpp_from_format(uint32_t format)
-{
-	if (format == GBM_BO_FORMAT_XRGB8888)
-		format = GBM_FORMAT_XRGB8888;
-	if (format == GBM_BO_FORMAT_ARGB8888)
-		format = GBM_FORMAT_ARGB8888;
-
-	switch(format)
-	{
-		case GBM_FORMAT_C8:
-		case GBM_FORMAT_RGB332:
-		case GBM_FORMAT_BGR233:
-			return 8;
-
-		case GBM_FORMAT_XRGB4444:
-		case GBM_FORMAT_XBGR4444:
-		case GBM_FORMAT_RGBX4444:
-		case GBM_FORMAT_BGRX4444:
-		case GBM_FORMAT_ARGB4444:
-		case GBM_FORMAT_ABGR4444:
-		case GBM_FORMAT_RGBA4444:
-		case GBM_FORMAT_BGRA4444:
-		case GBM_FORMAT_XRGB1555:
-		case GBM_FORMAT_XBGR1555:
-		case GBM_FORMAT_RGBX5551:
-		case GBM_FORMAT_BGRX5551:
-		case GBM_FORMAT_ARGB1555:
-		case GBM_FORMAT_ABGR1555:
-		case GBM_FORMAT_RGBA5551:
-		case GBM_FORMAT_BGRA5551:
-		case GBM_FORMAT_RGB565:
-		case GBM_FORMAT_BGR565:
-		case GBM_FORMAT_YUYV:
-		case GBM_FORMAT_YVYU:
-		case GBM_FORMAT_UYVY:
-		case GBM_FORMAT_VYUY:
-			return 16;
-
-		case GBM_FORMAT_RGB888:
-		case GBM_FORMAT_BGR888:
-			return 24;
-
-		case GBM_FORMAT_XRGB8888:
-		case GBM_FORMAT_XBGR8888:
-		case GBM_FORMAT_RGBX8888:
-		case GBM_FORMAT_BGRX8888:
-		case GBM_FORMAT_ARGB8888:
-		case GBM_FORMAT_ABGR8888:
-		case GBM_FORMAT_RGBA8888:
-		case GBM_FORMAT_BGRA8888:
-		case GBM_FORMAT_XRGB2101010:
-		case GBM_FORMAT_XBGR2101010:
-		case GBM_FORMAT_RGBX1010102:
-		case GBM_FORMAT_BGRX1010102:
-		case GBM_FORMAT_ARGB2101010:
-		case GBM_FORMAT_ABGR2101010:
-		case GBM_FORMAT_RGBA1010102:
-		case GBM_FORMAT_BGRA1010102:
-		case GBM_FORMAT_AYUV:
-			return 32;
-	}
-
-	printf("UNKNOWN FORMAT %d\n", format);
+static uint32_t subsample_stride(uint32_t stride, uint32_t format, size_t plane)
+{
+
+	if (plane != 0) {
+		switch (format) {
+		case DRM_FORMAT_YVU420:
+		case DRM_FORMAT_YVU420_ANDROID:
+			stride = DIV_ROUND_UP(stride, 2);
+			break;
+		}
+	}
+
+	return stride;
+}
+
+static uint32_t bpp_from_format(uint32_t format, size_t plane)
+{
+	assert(plane < drv_num_planes_from_format(format));
+
+	switch (format) {
+	case DRM_FORMAT_BGR233:
+	case DRM_FORMAT_C8:
+	case DRM_FORMAT_R8:
+	case DRM_FORMAT_RGB332:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_YVU420_ANDROID:
+		return 8;
+
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV21:
+		return (plane == 0) ? 8 : 4;
+
+	case DRM_FORMAT_ABGR1555:
+	case DRM_FORMAT_ABGR4444:
+	case DRM_FORMAT_ARGB1555:
+	case DRM_FORMAT_ARGB4444:
+	case DRM_FORMAT_BGR565:
+	case DRM_FORMAT_BGRA4444:
+	case DRM_FORMAT_BGRA5551:
+	case DRM_FORMAT_BGRX4444:
+	case DRM_FORMAT_BGRX5551:
+	case DRM_FORMAT_GR88:
+	case DRM_FORMAT_RG88:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_RGBA4444:
+	case DRM_FORMAT_RGBA5551:
+	case DRM_FORMAT_RGBX4444:
+	case DRM_FORMAT_RGBX5551:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_VYUY:
+	case DRM_FORMAT_XBGR1555:
+	case DRM_FORMAT_XBGR4444:
+	case DRM_FORMAT_XRGB1555:
+	case DRM_FORMAT_XRGB4444:
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_YVYU:
+		return 16;
+
+	case DRM_FORMAT_BGR888:
+	case DRM_FORMAT_RGB888:
+		return 24;
+
+	case DRM_FORMAT_ABGR2101010:
+	case DRM_FORMAT_ABGR8888:
+	case DRM_FORMAT_ARGB2101010:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_AYUV:
+	case DRM_FORMAT_BGRA1010102:
+	case DRM_FORMAT_BGRA8888:
+	case DRM_FORMAT_BGRX1010102:
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_RGBA1010102:
+	case DRM_FORMAT_RGBA8888:
+	case DRM_FORMAT_RGBX1010102:
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_XBGR2101010:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_XRGB8888:
+		return 32;
+	}
+
+	fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
 	return 0;
 }
 
-int gbm_bytes_from_format(uint32_t format)
+uint32_t drv_bo_get_stride_in_pixels(struct bo *bo)
 {
-	return gbm_bpp_from_format(format) / 8;
+	uint32_t bytes_per_pixel = DIV_ROUND_UP(bpp_from_format(bo->format, 0), 8);
+	return DIV_ROUND_UP(bo->strides[0], bytes_per_pixel);
 }
 
-int gbm_is_format_supported(struct gbm_bo *bo)
+/*
+ * This function returns the stride for a given format, width and plane.
+ */
+uint32_t drv_stride_from_format(uint32_t format, uint32_t width, size_t plane)
 {
-	return 1;
+	uint32_t stride = DIV_ROUND_UP(width * bpp_from_format(format, plane), 8);
+
+	/*
+	 * The stride of Android YV12 buffers is required to be aligned to 16 bytes
+	 * (see <system/graphics.h>).
+	 */
+	if (format == DRM_FORMAT_YVU420_ANDROID)
+		stride = (plane == 0) ? ALIGN(stride, 32) : ALIGN(stride, 16);
+
+	return stride;
 }
 
-int gbm_dumb_bo_create(struct gbm_bo *bo, uint32_t width, uint32_t height, uint32_t format, uint32_t flags)
+/*
+ * This function fills in the buffer object given the driver aligned stride of
+ * the first plane, height and a format. This function assumes there is just
+ * one kernel buffer per buffer object.
+ */
+int drv_bo_from_format(struct bo *bo, uint32_t stride, uint32_t aligned_height, uint32_t format)
+{
+
+	size_t p, num_planes;
+	uint32_t offset = 0;
+
+	num_planes = drv_num_planes_from_format(format);
+	assert(num_planes);
+
+	/*
+	 * HAL_PIXEL_FORMAT_YV12 requires that (see <system/graphics.h>):
+	 *  - the aligned height is same as the buffer's height.
+	 *  - the chroma stride is 16 bytes aligned, i.e., the luma's strides
+	 *    is 32 bytes aligned.
+	 */
+	if (format == DRM_FORMAT_YVU420_ANDROID) {
+		assert(aligned_height == bo->height);
+		assert(stride == ALIGN(stride, 32));
+	}
+
+	for (p = 0; p < num_planes; p++) {
+		bo->strides[p] = subsample_stride(stride, format, p);
+		bo->sizes[p] = drv_size_from_format(format, bo->strides[p], aligned_height, p);
+		bo->offsets[p] = offset;
+		offset += bo->sizes[p];
+	}
+
+	bo->total_size = offset;
+	return 0;
+}
+
+int drv_dumb_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
+		       uint32_t flags)
 {
-	struct drm_mode_create_dumb create_dumb;
 	int ret;
+	size_t plane;
+	uint32_t aligned_width, aligned_height;
+	struct drm_mode_create_dumb create_dumb;
+
+	aligned_width = width;
+	aligned_height = height;
+	if (format == DRM_FORMAT_YVU420_ANDROID) {
+		/*
+		 * Align width to 32 pixels, so chroma strides are 16 bytes as
+		 * Android requires.
+		 */
+		aligned_width = ALIGN(width, 32);
+	}
+
+	if (format == DRM_FORMAT_YVU420_ANDROID || format == DRM_FORMAT_YVU420) {
+		aligned_height = 3 * DIV_ROUND_UP(height, 2);
+	}
 
 	memset(&create_dumb, 0, sizeof(create_dumb));
-	create_dumb.height = height;
-	create_dumb.width = width;
-	create_dumb.bpp = gbm_bpp_from_format(format);
+	create_dumb.height = aligned_height;
+	create_dumb.width = aligned_width;
+	create_dumb.bpp = bpp_from_format(format, 0);
 	create_dumb.flags = 0;
 
-	ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_dumb);
+	ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_dumb);
 	if (ret) {
-		fprintf(stderr, "minigbm: DRM_IOCTL_MODE_CREATE_DUMB failed "
-				"(handle=%x)\n", bo->handle.u32);
+		fprintf(stderr, "drv: DRM_IOCTL_MODE_CREATE_DUMB failed\n");
 		return ret;
 	}
 
-	bo->handle.u32 = create_dumb.handle;
-	bo->size = create_dumb.size;
-	bo->stride = create_dumb.pitch;
+	drv_bo_from_format(bo, create_dumb.pitch, height, format);
 
+	for (plane = 0; plane < bo->num_planes; plane++)
+		bo->handles[plane].u32 = create_dumb.handle;
+
+	bo->total_size = create_dumb.size;
 	return 0;
 }
 
-int gbm_dumb_bo_destroy(struct gbm_bo *bo)
+int drv_dumb_bo_destroy(struct bo *bo)
 {
 	struct drm_mode_destroy_dumb destroy_dumb;
 	int ret;
 
 	memset(&destroy_dumb, 0, sizeof(destroy_dumb));
-	destroy_dumb.handle = bo->handle.u32;
+	destroy_dumb.handle = bo->handles[0].u32;
 
-	ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_dumb);
+	ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_dumb);
 	if (ret) {
-		fprintf(stderr, "minigbm: DRM_IOCTL_MODE_DESTROY_DUMB failed "
-				"(handle=%x)\n", bo->handle.u32);
+		fprintf(stderr, "drv: DRM_IOCTL_MODE_DESTROY_DUMB failed (handle=%x)\n",
+			bo->handles[0].u32);
 		return ret;
 	}
 
 	return 0;
 }
 
-int gbm_gem_bo_destroy(struct gbm_bo *bo)
+int drv_gem_bo_destroy(struct bo *bo)
 {
 	struct drm_gem_close gem_close;
+	int ret, error = 0;
+	size_t plane, i;
+
+	for (plane = 0; plane < bo->num_planes; plane++) {
+		for (i = 0; i < plane; i++)
+			if (bo->handles[i].u32 == bo->handles[plane].u32)
+				break;
+		/* Make sure close hasn't already been called on this handle */
+		if (i != plane)
+			continue;
+
+		memset(&gem_close, 0, sizeof(gem_close));
+		gem_close.handle = bo->handles[plane].u32;
+
+		ret = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
+		if (ret) {
+			fprintf(stderr, "drv: DRM_IOCTL_GEM_CLOSE failed (handle=%x) error %d\n",
+				bo->handles[plane].u32, ret);
+			error = ret;
+		}
+	}
+
+	return error;
+}
+
+int drv_prime_bo_import(struct bo *bo, struct drv_import_fd_data *data)
+{
+	int ret;
+	size_t plane;
+	struct drm_prime_handle prime_handle;
+
+	for (plane = 0; plane < bo->num_planes; plane++) {
+		memset(&prime_handle, 0, sizeof(prime_handle));
+		prime_handle.fd = data->fds[plane];
+
+		ret = drmIoctl(bo->drv->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &prime_handle);
+
+		if (ret) {
+			fprintf(stderr, "drv: DRM_IOCTL_PRIME_FD_TO_HANDLE failed (fd=%u)\n",
+				prime_handle.fd);
+
+			/*
+			 * Need to call GEM close on planes that were opened,
+			 * if any. Adjust the num_planes variable to be the
+			 * plane that failed, so GEM close will be called on
+			 * planes before that plane.
+			 */
+			bo->num_planes = plane;
+			drv_gem_bo_destroy(bo);
+			return ret;
+		}
+
+		bo->handles[plane].u32 = prime_handle.handle;
+	}
+
+	for (plane = 0; plane < bo->num_planes; plane++) {
+		pthread_mutex_lock(&bo->drv->driver_lock);
+		drv_increment_reference_count(bo->drv, bo, plane);
+		pthread_mutex_unlock(&bo->drv->driver_lock);
+	}
+
+	return 0;
+}
+
+void *drv_dumb_bo_map(struct bo *bo, struct map_info *data, size_t plane, int prot)
+{
 	int ret;
+	size_t i;
+	struct drm_mode_map_dumb map_dumb;
 
-	memset(&gem_close, 0, sizeof(gem_close));
-	gem_close.handle = bo->handle.u32;
+	memset(&map_dumb, 0, sizeof(map_dumb));
+	map_dumb.handle = bo->handles[plane].u32;
 
-	ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
+	ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_dumb);
 	if (ret) {
-		fprintf(stderr, "minigbm: DRM_IOCTL_GEM_CLOSE failed "
-				"(handle=%x)\n", bo->handle.u32);
-		return ret;
+		fprintf(stderr, "drv: DRM_IOCTL_MODE_MAP_DUMB failed \n");
+		return MAP_FAILED;
+	}
+
+	for (i = 0; i < bo->num_planes; i++)
+		if (bo->handles[i].u32 == bo->handles[plane].u32)
+			data->length += bo->sizes[i];
+
+	return mmap(0, data->length, prot, MAP_SHARED, bo->drv->fd, map_dumb.offset);
+}
+
+uintptr_t drv_get_reference_count(struct driver *drv, struct bo *bo, size_t plane)
+{
+	void *count;
+	uintptr_t num = 0;
+
+	if (!drmHashLookup(drv->buffer_table, bo->handles[plane].u32, &count))
+		num = (uintptr_t)(count);
+
+	return num;
+}
+
+void drv_increment_reference_count(struct driver *drv, struct bo *bo, size_t plane)
+{
+	uintptr_t num = drv_get_reference_count(drv, bo, plane);
+
+	/* If a value isn't in the table, drmHashDelete is a no-op */
+	drmHashDelete(drv->buffer_table, bo->handles[plane].u32);
+	drmHashInsert(drv->buffer_table, bo->handles[plane].u32, (void *)(num + 1));
+}
+
+void drv_decrement_reference_count(struct driver *drv, struct bo *bo, size_t plane)
+{
+	uintptr_t num = drv_get_reference_count(drv, bo, plane);
+
+	drmHashDelete(drv->buffer_table, bo->handles[plane].u32);
+
+	if (num > 0)
+		drmHashInsert(drv->buffer_table, bo->handles[plane].u32, (void *)(num - 1));
+}
+
+uint32_t drv_log_base2(uint32_t value)
+{
+	int ret = 0;
+
+	while (value >>= 1)
+		++ret;
+
+	return ret;
+}
+
+int drv_add_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata,
+			uint64_t usage)
+{
+	struct combinations *combos = &drv->backend->combos;
+	if (combos->size >= combos->allocations) {
+		struct combination *new_data;
+		combos->allocations *= 2;
+		new_data = realloc(combos->data, combos->allocations * sizeof(*combos->data));
+		if (!new_data)
+			return -ENOMEM;
+
+		combos->data = new_data;
+	}
+
+	combos->data[combos->size].format = format;
+	combos->data[combos->size].metadata.priority = metadata->priority;
+	combos->data[combos->size].metadata.tiling = metadata->tiling;
+	combos->data[combos->size].metadata.modifier = metadata->modifier;
+	combos->data[combos->size].usage = usage;
+	combos->size++;
+	return 0;
+}
+
+int drv_add_combinations(struct driver *drv, const uint32_t *formats, uint32_t num_formats,
+			 struct format_metadata *metadata, uint64_t usage)
+{
+	int ret;
+	uint32_t i;
+	for (i = 0; i < num_formats; i++) {
+		ret = drv_add_combination(drv, formats[i], metadata, usage);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+void drv_modify_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata,
+			    uint64_t usage)
+{
+	uint32_t i;
+	struct combination *combo;
+	/* Attempts to add the specified usage to an existing combination. */
+	for (i = 0; i < drv->backend->combos.size; i++) {
+		combo = &drv->backend->combos.data[i];
+		if (combo->format == format && combo->metadata.tiling == metadata->tiling &&
+		    combo->metadata.modifier == metadata->modifier)
+			combo->usage |= usage;
+	}
+}
+
+struct kms_item *drv_query_kms(struct driver *drv, uint32_t *num_items)
+{
+	uint64_t flag, usage;
+	struct kms_item *items;
+	uint32_t i, j, k, allocations, item_size;
+
+	drmModePlanePtr plane;
+	drmModePropertyPtr prop;
+	drmModePlaneResPtr resources;
+	drmModeObjectPropertiesPtr props;
+
+	/* Start with a power of 2 number of allocations. */
+	allocations = 2;
+	item_size = 0;
+	items = calloc(allocations, sizeof(*items));
+	if (!items)
+		goto out;
+
+	/*
+	 * The ability to return universal planes is only complete on
+	 * ChromeOS kernel versions >= v3.18.  The SET_CLIENT_CAP ioctl
+	 * therefore might return an error code, so don't check it.  If it
+	 * fails, it'll just return the plane list as overlay planes, which is
+	 * fine in our case (our drivers already have cursor bits set).
+	 * modetest in libdrm does the same thing.
+	 */
+	drmSetClientCap(drv->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
+
+	resources = drmModeGetPlaneResources(drv->fd);
+	if (!resources)
+		goto out;
+
+	for (i = 0; i < resources->count_planes; i++) {
+		plane = drmModeGetPlane(drv->fd, resources->planes[i]);
+		if (!plane)
+			goto out;
+
+		props = drmModeObjectGetProperties(drv->fd, plane->plane_id, DRM_MODE_OBJECT_PLANE);
+		if (!props)
+			goto out;
+
+		for (j = 0; j < props->count_props; j++) {
+			prop = drmModeGetProperty(drv->fd, props->props[j]);
+			if (prop) {
+				if (strcmp(prop->name, "type") == 0) {
+					flag = props->prop_values[j];
+				}
+
+				drmModeFreeProperty(prop);
+			}
+		}
+
+		switch (flag) {
+		case DRM_PLANE_TYPE_OVERLAY:
+		case DRM_PLANE_TYPE_PRIMARY:
+			usage = BO_USE_SCANOUT;
+			break;
+		case DRM_PLANE_TYPE_CURSOR:
+			usage = BO_USE_CURSOR;
+			break;
+		default:
+			assert(0);
+		}
+
+		for (j = 0; j < plane->count_formats; j++) {
+			bool found = false;
+			for (k = 0; k < item_size; k++) {
+				if (items[k].format == plane->formats[j] &&
+				    items[k].modifier == DRM_FORMAT_MOD_NONE) {
+					items[k].usage |= usage;
+					found = true;
+					break;
+				}
+			}
+
+			if (!found && item_size >= allocations) {
+				struct kms_item *new_data = NULL;
+				allocations *= 2;
+				new_data = realloc(items, allocations * sizeof(*items));
+				if (!new_data) {
+					item_size = 0;
+					goto out;
+				}
+
+				items = new_data;
+			}
+
+			if (!found) {
+				items[item_size].format = plane->formats[j];
+				items[item_size].modifier = DRM_FORMAT_MOD_NONE;
+				items[item_size].usage = usage;
+				item_size++;
+			}
+		}
+
+		drmModeFreeObjectProperties(props);
+		drmModeFreePlane(plane);
+	}
+
+	drmModeFreePlaneResources(resources);
+out:
+	if (items && item_size == 0) {
+		free(items);
+		items = NULL;
+	}
+
+	*num_items = item_size;
+	return items;
+}
+
+int drv_modify_linear_combinations(struct driver *drv)
+{
+	uint32_t i, j, num_items;
+	struct kms_item *items;
+	struct combination *combo;
+
+	/*
+	 * All current drivers can scanout linear XRGB8888/ARGB8888 as a primary
+	 * plane and as a cursor. Some drivers don't support
+	 * drmModeGetPlaneResources, so add the combination here. Note that the
+	 * kernel disregards the alpha component of ARGB unless it's an overlay
+	 * plane.
+	 */
+	drv_modify_combination(drv, DRM_FORMAT_XRGB8888, &LINEAR_METADATA,
+			       BO_USE_CURSOR | BO_USE_SCANOUT);
+	drv_modify_combination(drv, DRM_FORMAT_ARGB8888, &LINEAR_METADATA,
+			       BO_USE_CURSOR | BO_USE_SCANOUT);
+
+	items = drv_query_kms(drv, &num_items);
+	if (!items || !num_items)
+		return 0;
+
+	for (i = 0; i < num_items; i++) {
+		for (j = 0; j < drv->backend->combos.size; j++) {
+			combo = &drv->backend->combos.data[j];
+			if (items[i].format == combo->format)
+				combo->usage |= BO_USE_SCANOUT;
+		}
 	}
 
+	free(items);
 	return 0;
 }