docs-rst: Don't use explicit Makefile rules to build SVG and DOT files

Now that we have an extension to handle images, use it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/media/Makefile

-# Rules to convert DOT and SVG to Sphinx images
-
-SRC_DIR=$(srctree)/Documentation/media
-
-DOTS = \
-	uapi/v4l/pipeline.dot \
-
-IMAGES = \
-	typical_media_device.svg \
-	uapi/dvb/dvbstb.svg \
-	uapi/v4l/bayer.svg \
-	uapi/v4l/constraints.svg \
-	uapi/v4l/crop.svg \
-	uapi/v4l/fieldseq_bt.svg \
-	uapi/v4l/fieldseq_tb.svg \
-	uapi/v4l/nv12mt.svg \
-	uapi/v4l/nv12mt_example.svg \
-	uapi/v4l/pipeline.svg \
-	uapi/v4l/selection.svg \
-	uapi/v4l/subdev-image-processing-full.svg \
-	uapi/v4l/subdev-image-processing-scaling-multi-source.svg \
-	uapi/v4l/subdev-image-processing-crop.svg \
-	uapi/v4l/vbi_525.svg \
-	uapi/v4l/vbi_625.svg \
-	uapi/v4l/vbi_hsync.svg \
-
-DOTTGT := $(patsubst %.dot,%.svg,$(DOTS))
-IMGDOT := $(patsubst %,$(SRC_DIR)/%,$(DOTTGT))
-
-IMGTGT := $(patsubst %.svg,%.pdf,$(IMAGES))
-IMGPDF := $(patsubst %,$(SRC_DIR)/%,$(IMGTGT))
-
-cmd = $(echo-cmd) $(cmd_$(1))
-
-quiet_cmd_genpdf = GENPDF  $2
-      cmd_genpdf = convert $2 $3
-
-quiet_cmd_gendot = DOT     $2
-      cmd_gendot = dot -Tsvg $2 > $3 || { rm -f $3; exit 1; }
-
-%.pdf: %.svg
-	@$(call cmd,genpdf,$<,$@)
-
-%.svg: %.dot
-	@$(call cmd,gendot,$<,$@)
-
 # Rules to convert a .h file to inline RST documentation
 
+SRC_DIR=$(srctree)/Documentation/media
 PARSER = $(srctree)/Documentation/sphinx/parse-headers.pl
 UAPI = $(srctree)/include/uapi/linux
 KAPI = $(srctree)/include/linux

Documentation/media/intro.rst

@@ -13,8 +13,8 @@ A typical media device hardware is shown at :ref:`typical_media_device`.
 
 .. _typical_media_device:
 
-.. figure::  typical_media_device.*
-    :alt:    typical_media_device.pdf / typical_media_device.svg
+.. kernel-figure:: typical_media_device.svg
+    :alt:   typical_media_device.svg
     :align: center
 
     Typical Media Device

Documentation/media/uapi/dvb/intro.rst

@@ -55,8 +55,8 @@ Overview
 
 .. _stb_components:
 
-.. figure::  dvbstb.*
-    :alt:    dvbstb.pdf / dvbstb.svg
+.. kernel-figure:: dvbstb.svg
+    :alt:   dvbstb.svg
     :align: center
 
     Components of a DVB card/STB

Documentation/media/uapi/v4l/crop.rst

@@ -53,8 +53,8 @@ Cropping Structures
 
 .. _crop-scale:
 
-.. figure::  crop.*
-    :alt:    crop.pdf / crop.svg
+.. kernel-figure:: crop.svg
+    :alt:    crop.svg
     :align:  center
 
     Image Cropping, Insertion and Scaling

Documentation/media/uapi/v4l/dev-raw-vbi.rst

@@ -221,8 +221,8 @@ and always returns default parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` does
 
 .. _vbi-hsync:
 
-.. figure::  vbi_hsync.*
-    :alt:    vbi_hsync.pdf / vbi_hsync.svg
+.. kernel-figure:: vbi_hsync.svg
+    :alt:   vbi_hsync.svg
     :align: center
 
     **Figure 4.1. Line synchronization**
@@ -230,24 +230,20 @@ and always returns default parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` does
 
 .. _vbi-525:
 
-.. figure::  vbi_525.*
-    :alt:    vbi_525.pdf / vbi_525.svg
+.. kernel-figure:: vbi_525.svg
+    :alt:   vbi_525.svg
     :align: center
 
     **Figure 4.2. ITU-R 525 line numbering (M/NTSC and M/PAL)**
 
-
-
 .. _vbi-625:
 
-.. figure::  vbi_625.*
-    :alt:    vbi_625.pdf / vbi_625.svg
+.. kernel-figure:: vbi_625.svg
+    :alt:   vbi_625.svg
     :align: center
 
     **Figure 4.3. ITU-R 625 line numbering**
 
-
-
 Remember the VBI image format depends on the selected video standard,
 therefore the application must choose a new standard or query the
 current standard first. Attempts to read or write data ahead of format

Documentation/media/uapi/v4l/dev-subdev.rst

@@ -99,8 +99,8 @@ the video sensor and the host image processing hardware.
 
 .. _pipeline-scaling:
 
-.. figure::  pipeline.*
-    :alt:    pipeline.pdf / pipeline.svg
+.. kernel-figure:: pipeline.dot
+    :alt:   pipeline.dot
     :align: center
 
     Image Format Negotiation on Pipelines
@@ -404,8 +404,8 @@ selection will refer to the sink pad format dimensions instead.
 
 .. _subdev-image-processing-crop:
 
-.. figure::  subdev-image-processing-crop.*
-    :alt:    subdev-image-processing-crop.pdf / subdev-image-processing-crop.svg
+.. kernel-figure:: subdev-image-processing-crop.svg
+    :alt:   subdev-image-processing-crop.svg
     :align: center
 
     **Figure 4.5. Image processing in subdevs: simple crop example**
@@ -421,8 +421,8 @@ pad.
 
 .. _subdev-image-processing-scaling-multi-source:
 
-.. figure::  subdev-image-processing-scaling-multi-source.*
-    :alt:    subdev-image-processing-scaling-multi-source.pdf / subdev-image-processing-scaling-multi-source.svg
+.. kernel-figure:: subdev-image-processing-scaling-multi-source.svg
+    :alt:   subdev-image-processing-scaling-multi-source.svg
     :align: center
 
     **Figure 4.6. Image processing in subdevs: scaling with multiple sources**
@@ -437,8 +437,8 @@ an area at location specified by the source crop rectangle from it.
 
 .. _subdev-image-processing-full:
 
-.. figure::  subdev-image-processing-full.*
-    :alt:    subdev-image-processing-full.pdf / subdev-image-processing-full.svg
+.. kernel-figure:: subdev-image-processing-full.svg
+    :alt:    subdev-image-processing-full.svg
     :align:  center
 
     **Figure 4.7. Image processing in subdevs: scaling and composition with multiple sinks and sources**

Documentation/media/uapi/v4l/field-order.rst

@@ -141,17 +141,20 @@ enum v4l2_field
 Field Order, Top Field First Transmitted
 ========================================
 
-.. figure::  fieldseq_tb.*
-    :alt:    fieldseq_tb.pdf / fieldseq_tb.svg
+.. kernel-figure:: fieldseq_tb.svg
+    :alt:    fieldseq_tb.svg
     :align:  center
 
+    Field Order, Top Field First Transmitted
+
 
 .. _fieldseq-bt:
 
 Field Order, Bottom Field First Transmitted
 ===========================================
 
-.. figure::  fieldseq_bt.*
-    :alt:    fieldseq_bt.pdf / fieldseq_bt.svg
+.. kernel-figure:: fieldseq_bt.svg
+    :alt:    fieldseq_bt.svg
     :align:  center
 
+    Field Order, Bottom Field First Transmitted

Documentation/media/uapi/v4l/pixfmt-nv12mt.rst

@@ -33,8 +33,8 @@ Layout of macroblocks in memory is presented in the following figure.
 
 .. _nv12mt:
 
-.. figure::  nv12mt.*
-    :alt:    nv12mt.pdf / nv12mt.svg
+.. kernel-figure:: nv12mt.svg
+    :alt:    nv12mt.svg
     :align:  center
 
     V4L2_PIX_FMT_NV12MT macroblock Z shape memory layout
@@ -50,8 +50,8 @@ interleaved. Height of the buffer is aligned to 32.
 
 .. _nv12mt_ex:
 
-.. figure::  nv12mt_example.*
-    :alt:    nv12mt_example.pdf / nv12mt_example.svg
+.. kernel-figure:: nv12mt_example.svg
+    :alt:    nv12mt_example.svg
     :align:  center
 
     Example V4L2_PIX_FMT_NV12MT memory layout of macroblocks

Documentation/media/uapi/v4l/selection-api-003.rst

@@ -7,8 +7,8 @@ Selection targets
 
 .. _sel-targets-capture:
 
-.. figure::  selection.*
-    :alt:    selection.pdf / selection.svg
+.. kernel-figure:: selection.svg
+    :alt:   selection.svg
     :align: center
 
     Cropping and composing targets

Documentation/media/uapi/v4l/subdev-formats.rst

@@ -1514,8 +1514,8 @@ be named ``MEDIA_BUS_FMT_SRGGB10_2X8_PADHI_LE``.
 
 .. _bayer-patterns:
 
-.. figure::  bayer.*
-    :alt:    bayer.pdf / bayer.svg
+.. kernel-figure:: bayer.svg
+    :alt:    bayer.svg
     :align:  center
 
     **Figure 4.8 Bayer Patterns**