X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=exynos.c;h=5862643eff35d3702c2af6f5ebd35e17e8ba8954;hb=cea0b84e41601c80c757e114eea704fe52e36869;hp=6015d75caee07a6008b7540bfbb4768ca4493c63;hpb=1de26dc73c39b8a77c36e50642403fc359e06c73;p=android-x86%2Fexternal-minigbm.git

diff --git a/exynos.c b/exynos.c
index 6015d75..5862643 100644
--- a/exynos.c
+++ b/exynos.c
@@ -1,48 +1,112 @@
 /*
- * 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.
  */
 
-#ifdef GBM_EXYNOS
+#ifdef DRV_EXYNOS
 
+// clang-format off
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
 #include <string.h>
 #include <xf86drm.h>
 #include <exynos_drm.h>
+// clang-format on
 
-#include "gbm_priv.h"
+#include "drv_priv.h"
 #include "helpers.h"
+#include "util.h"
 
-int gbm_exynos_bo_create(struct gbm_bo *bo, uint32_t width, uint32_t height, uint32_t format, uint32_t flags)
+static const uint32_t render_target_formats[] = { DRM_FORMAT_ARGB8888, DRM_FORMAT_XRGB8888 };
+
+static const uint32_t texture_source_formats[] = { DRM_FORMAT_NV12 };
+
+static int exynos_init(struct driver *drv)
+{
+	drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats),
+			     &LINEAR_METADATA, BO_USE_RENDER_MASK);
+
+	drv_add_combinations(drv, texture_source_formats, ARRAY_SIZE(texture_source_formats),
+			     &LINEAR_METADATA, BO_USE_TEXTURE_MASK);
+
+	return drv_modify_linear_combinations(drv);
+}
+
+static int exynos_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
+			    uint64_t use_flags)
 {
-	size_t size = width * height * gbm_bytes_from_format(format);
-	struct drm_exynos_gem_create gem_create;
+	size_t plane;
+
+	if (format == DRM_FORMAT_NV12) {
+		uint32_t chroma_height;
+		/* V4L2 s5p-mfc requires width to be 16 byte aligned and height 32. */
+		width = ALIGN(width, 16);
+		height = ALIGN(height, 32);
+		chroma_height = ALIGN(height / 2, 32);
+		bo->meta.strides[0] = bo->meta.strides[1] = width;
+		/* MFC v8+ requires 64 byte padding in the end of luma and chroma buffers. */
+		bo->meta.sizes[0] = bo->meta.strides[0] * height + 64;
+		bo->meta.sizes[1] = bo->meta.strides[1] * chroma_height + 64;
+		bo->meta.offsets[0] = bo->meta.offsets[1] = 0;
+		bo->meta.total_size = bo->meta.sizes[0] + bo->meta.sizes[1];
+	} else if (format == DRM_FORMAT_XRGB8888 || format == DRM_FORMAT_ARGB8888) {
+		bo->meta.strides[0] = drv_stride_from_format(format, width, 0);
+		bo->meta.total_size = bo->meta.sizes[0] = height * bo->meta.strides[0];
+		bo->meta.offsets[0] = 0;
+	} else {
+		drv_log("unsupported format %X\n", format);
+		assert(0);
+		return -EINVAL;
+	}
+
 	int ret;
+	for (plane = 0; plane < bo->meta.num_planes; plane++) {
+		size_t size = bo->meta.sizes[plane];
+		struct drm_exynos_gem_create gem_create = { 0 };
 
-	memset(&gem_create, 0, sizeof(gem_create));
-	gem_create.size = size;
-	gem_create.flags = EXYNOS_BO_NONCONTIG;
+		gem_create.size = size;
+		gem_create.flags = EXYNOS_BO_NONCONTIG;
 
-	ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &gem_create);
-	if (ret)
-		return ret;
+		ret = drmIoctl(bo->drv->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &gem_create);
+		if (ret) {
+			drv_log("DRM_IOCTL_EXYNOS_GEM_CREATE failed (size=%zu)\n", size);
+			ret = -errno;
+			goto cleanup_planes;
+		}
 
-	bo->handle.u32 = gem_create.handle;
-	bo->size = size;
-	bo->stride = width * gbm_bytes_from_format(format);
+		bo->handles[plane].u32 = gem_create.handle;
+	}
 
 	return 0;
+
+cleanup_planes:
+	for (; plane != 0; plane--) {
+		struct drm_gem_close gem_close = { 0 };
+
+		gem_close.handle = bo->handles[plane - 1].u32;
+		int gem_close_ret = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
+		if (gem_close_ret) {
+			drv_log("DRM_IOCTL_GEM_CLOSE failed: %d\n", gem_close_ret);
+		}
+	}
+
+	return ret;
 }
 
-const struct gbm_driver gbm_driver_exynos =
-{
+/*
+ * Use dumb mapping with exynos even though a GEM buffer is created.
+ * libdrm does the same thing in exynos_drm.c
+ */
+const struct backend backend_exynos = {
 	.name = "exynos",
-	.bo_create = gbm_exynos_bo_create,
-	.bo_destroy = gbm_gem_bo_destroy,
-	.format_list = {
-		{GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING | GBM_BO_USE_WRITE},
-		{GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING | GBM_BO_USE_WRITE},
-	}
+	.init = exynos_init,
+	.bo_create = exynos_bo_create,
+	.bo_destroy = drv_gem_bo_destroy,
+	.bo_import = drv_prime_bo_import,
+	.bo_map = drv_dumb_bo_map,
+	.bo_unmap = drv_bo_munmap,
 };
 
 #endif