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backend/native: Share drmModeAddFB code
With all the three paths this is quite a handful of code, and it was mostly duplicated in two places. A follow-up patch would need to introduce a third copy of it. Therefore move the code into a helper function. There are two behavioral changes: - The format error now prints the string code as well, because it is easy to read. - The g_debug() in init_dumb_fb() is removed. Did not seem useful. https://gitlab.gnome.org/GNOME/mutter/merge_requests/810
This commit is contained in:
Pekka Paalanen
Jonas Ådahl
parent
f409dddb54
commit
03ac7b1821
@ -57,16 +57,8 @@ acquire_swapped_buffer (MetaDrmBufferGbm *buffer_gbm,
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gboolean use_modifiers,
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GError **error)
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{
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uint32_t handles[4] = {0, 0, 0, 0};
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uint32_t strides[4] = {0, 0, 0, 0};
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uint32_t offsets[4] = {0, 0, 0, 0};
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uint64_t modifiers[4] = {0, 0, 0, 0};
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uint32_t width, height;
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uint32_t format;
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MetaGpuKmsFBArgs fb_args = { 0, };
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struct gbm_bo *bo;
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int kms_fd;
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kms_fd = meta_gpu_kms_get_fd (buffer_gbm->gpu_kms);
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bo = gbm_surface_lock_front_buffer (buffer_gbm->surface);
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if (!bo)
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@ -81,10 +73,10 @@ acquire_swapped_buffer (MetaDrmBufferGbm *buffer_gbm,
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if (gbm_bo_get_handle_for_plane (bo, 0).s32 == -1)
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{
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/* Failed to fetch handle to plane, falling back to old method */
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strides[0] = gbm_bo_get_stride (bo);
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handles[0] = gbm_bo_get_handle (bo).u32;
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offsets[0] = 0;
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modifiers[0] = DRM_FORMAT_MOD_INVALID;
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fb_args.strides[0] = gbm_bo_get_stride (bo);
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fb_args.handles[0] = gbm_bo_get_handle (bo).u32;
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fb_args.offsets[0] = 0;
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fb_args.modifiers[0] = DRM_FORMAT_MOD_INVALID;
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}
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else
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{
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@ -92,76 +84,24 @@ acquire_swapped_buffer (MetaDrmBufferGbm *buffer_gbm,
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for (i = 0; i < gbm_bo_get_plane_count (bo); i++)
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{
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strides[i] = gbm_bo_get_stride_for_plane (bo, i);
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handles[i] = gbm_bo_get_handle_for_plane (bo, i).u32;
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offsets[i] = gbm_bo_get_offset (bo, i);
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modifiers[i] = gbm_bo_get_modifier (bo);
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fb_args.strides[i] = gbm_bo_get_stride_for_plane (bo, i);
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fb_args.handles[i] = gbm_bo_get_handle_for_plane (bo, i).u32;
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fb_args.offsets[i] = gbm_bo_get_offset (bo, i);
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fb_args.modifiers[i] = gbm_bo_get_modifier (bo);
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}
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}
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width = gbm_bo_get_width (bo);
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height = gbm_bo_get_height (bo);
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format = gbm_bo_get_format (bo);
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fb_args.width = gbm_bo_get_width (bo);
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fb_args.height = gbm_bo_get_height (bo);
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fb_args.format = gbm_bo_get_format (bo);
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if (use_modifiers && modifiers[0] != DRM_FORMAT_MOD_INVALID)
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if (!meta_gpu_kms_add_fb (buffer_gbm->gpu_kms,
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use_modifiers,
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&fb_args,
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&buffer_gbm->fb_id, error))
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{
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if (drmModeAddFB2WithModifiers (kms_fd,
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width, height,
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format,
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handles,
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strides,
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offsets,
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modifiers,
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&buffer_gbm->fb_id,
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DRM_MODE_FB_MODIFIERS))
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{
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g_set_error (error,
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G_IO_ERROR,
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g_io_error_from_errno (errno),
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"drmModeAddFB2WithModifiers failed: %s",
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g_strerror (errno));
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gbm_surface_release_buffer (buffer_gbm->surface, bo);
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return FALSE;
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}
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}
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else if (drmModeAddFB2 (kms_fd,
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width,
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height,
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format,
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handles,
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strides,
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offsets,
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&buffer_gbm->fb_id,
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0))
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{
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if (format != DRM_FORMAT_XRGB8888)
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{
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"drmModeAddFB does not support format 0x%x",
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format);
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gbm_surface_release_buffer (buffer_gbm->surface, bo);
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return FALSE;
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}
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if (drmModeAddFB (kms_fd,
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width,
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height,
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24,
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32,
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strides[0],
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handles[0],
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&buffer_gbm->fb_id))
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{
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g_set_error (error,
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G_IO_ERROR,
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g_io_error_from_errno (errno),
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"drmModeAddFB failed: %s",
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g_strerror (errno));
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gbm_surface_release_buffer (buffer_gbm->surface, bo);
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return FALSE;
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}
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gbm_surface_release_buffer (buffer_gbm->surface, bo);
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return FALSE;
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}
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buffer_gbm->bo = bo;
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@ -25,6 +25,7 @@
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#include "backends/native/meta-gpu-kms.h"
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#include <drm.h>
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#include <drm_fourcc.h>
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#include <errno.h>
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#include <poll.h>
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#include <string.h>
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@ -63,6 +64,80 @@ struct _MetaGpuKms
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G_DEFINE_TYPE (MetaGpuKms, meta_gpu_kms, META_TYPE_GPU)
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gboolean
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meta_gpu_kms_add_fb (MetaGpuKms *gpu_kms,
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gboolean use_modifiers,
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const MetaGpuKmsFBArgs *args,
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uint32_t *fb_id_out,
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GError **error)
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{
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MetaDrmFormatBuf tmp;
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uint32_t fb_id;
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if (use_modifiers && args->modifiers[0] != DRM_FORMAT_MOD_INVALID)
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{
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if (drmModeAddFB2WithModifiers (gpu_kms->fd,
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args->width,
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args->height,
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args->format,
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args->handles,
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args->strides,
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args->offsets,
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args->modifiers,
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&fb_id,
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DRM_MODE_FB_MODIFIERS))
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{
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g_set_error (error,
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G_IO_ERROR,
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g_io_error_from_errno (errno),
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"drmModeAddFB2WithModifiers failed: %s",
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g_strerror (errno));
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return FALSE;
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}
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}
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else if (drmModeAddFB2 (gpu_kms->fd,
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args->width,
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args->height,
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args->format,
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args->handles,
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args->strides,
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args->offsets,
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&fb_id,
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0))
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{
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if (args->format != DRM_FORMAT_XRGB8888)
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{
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"drmModeAddFB does not support format '%s' (0x%x)",
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meta_drm_format_to_string (&tmp, args->format),
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args->format);
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return FALSE;
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}
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if (drmModeAddFB (gpu_kms->fd,
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args->width,
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args->height,
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24,
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32,
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args->strides[0],
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args->handles[0],
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&fb_id))
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{
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g_set_error (error,
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G_IO_ERROR,
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g_io_error_from_errno (errno),
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"drmModeAddFB failed: %s",
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g_strerror (errno));
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return FALSE;
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}
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}
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*fb_id_out = fb_id;
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return TRUE;
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}
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gboolean
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meta_gpu_kms_is_crtc_active (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc)
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@ -77,4 +77,21 @@ MetaGpuKmsFlipClosureContainer * meta_gpu_kms_wrap_flip_closure (MetaGpuKms *gpu
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void meta_gpu_kms_flip_closure_container_free (MetaGpuKmsFlipClosureContainer *closure_container);
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typedef struct _MetaGpuKmsFBArgs
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{
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uint32_t width;
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uint32_t height;
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uint32_t format;
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uint32_t handles[4];
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uint32_t offsets[4];
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uint32_t strides[4];
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uint64_t modifiers[4];
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} MetaGpuKmsFBArgs;
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gboolean meta_gpu_kms_add_fb (MetaGpuKms *gpu_kms,
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gboolean use_modifiers,
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const MetaGpuKmsFBArgs *args,
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uint32_t *fb_id_out,
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GError **error);
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#endif /* META_GPU_KMS_H */
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@ -2534,9 +2534,11 @@ init_dumb_fb (MetaDumbBuffer *dumb_fb,
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uint32_t fb_id = 0;
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void *map;
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int kms_fd;
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uint32_t handles[4] = { 0, };
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uint32_t pitches[4] = { 0, };
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uint32_t offsets[4] = { 0, };
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MetaGpuKmsFBArgs fb_args = {
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.width = width,
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.height = height,
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.format = format,
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};
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kms_fd = meta_gpu_kms_get_fd (gpu_kms);
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@ -2554,42 +2556,11 @@ init_dumb_fb (MetaDumbBuffer *dumb_fb,
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goto err_ioctl;
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}
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handles[0] = create_arg.handle;
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pitches[0] = create_arg.pitch;
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fb_args.handles[0] = create_arg.handle;
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fb_args.strides[0] = create_arg.pitch;
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if (drmModeAddFB2 (kms_fd, width, height, format,
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handles, pitches, offsets,
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&fb_id, 0) != 0)
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{
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g_debug ("drmModeAddFB2 failed (%s), falling back to drmModeAddFB",
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g_strerror (errno));
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}
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if (fb_id == 0)
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{
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if (format != DRM_FORMAT_XRGB8888)
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{
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g_set_error (error, G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"drmModeAddFB does not support format 0x%x",
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format);
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goto err_add_fb;
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}
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if (drmModeAddFB (kms_fd, width, height,
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24 /* depth of RGBX8888 */,
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32 /* bpp of RGBX8888 */,
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create_arg.pitch,
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create_arg.handle,
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&fb_id) != 0)
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{
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g_set_error (error, G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"drmModeAddFB failed: %s",
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g_strerror (errno));
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goto err_add_fb;
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}
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}
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if (!meta_gpu_kms_add_fb (gpu_kms, FALSE, &fb_args, &fb_id, error))
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goto err_add_fb;
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map_arg = (struct drm_mode_map_dumb) {
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.handle = create_arg.handle
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