C++ (Cpp) drm_fb_cma_createの例

コード例 #1

ファイル: shmob_drm_kms.c プロジェクト: 168519/linux

static struct drm_framebuffer *
shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv,
		    struct drm_mode_fb_cmd2 *mode_cmd)
{
	const struct shmob_drm_format_info *format;

	format = shmob_drm_format_info(mode_cmd->pixel_format);
	if (format == NULL) {
		dev_dbg(dev->dev, "unsupported pixel format %08x\n",
			mode_cmd->pixel_format);
		return ERR_PTR(-EINVAL);
	}

	if (mode_cmd->pitches[0] & 7 || mode_cmd->pitches[0] >= 65536) {
		dev_dbg(dev->dev, "invalid pitch value %u\n",
			mode_cmd->pitches[0]);
		return ERR_PTR(-EINVAL);
	}

	if (format->yuv) {
		unsigned int chroma_cpp = format->bpp == 24 ? 2 : 1;

		if (mode_cmd->pitches[1] != mode_cmd->pitches[0] * chroma_cpp) {
			dev_dbg(dev->dev,
				"luma and chroma pitches do not match\n");
			return ERR_PTR(-EINVAL);
		}
	}

	return drm_fb_cma_create(dev, file_priv, mode_cmd);
}

コード例 #2

ファイル: atmel_hlcdc_dc.c プロジェクト: linux-next/linux-next

static struct drm_framebuffer *atmel_hlcdc_fb_create(struct drm_device *dev,
		struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd)
{
	return drm_fb_cma_create(dev, file_priv, mode_cmd);
}