[gtk+/wip/meson: 61/135] meson: gsk: generate gsk.resources.xml

[Emmanuele Bassi <ebassi src gnome org>]

commit 4f99513b1897ea5dac87e6cc65401b2de72fa2ff
Author: Tim-Philipp Müller <tim centricular com>
Date:   Sat Mar 18 12:14:12 2017 +0000

    meson: gsk: generate gsk.resources.xml

 gsk/gen-gsk-resources-xml.py |   52 +++++++++++++++++++
 gsk/gsk.resources.xml        |   15 -----
 gsk/meson.build              |  116 ++++++++++++++++++++++++++++--------------
 3 files changed, 129 insertions(+), 54 deletions(-)
---
diff --git a/gsk/gen-gsk-resources-xml.py b/gsk/gen-gsk-resources-xml.py
new file mode 100644
index 0000000..46c06bb
--- /dev/null
+++ b/gsk/gen-gsk-resources-xml.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+#
+# Generate gsk.resources.xml
+#
+# Usage: gen-gsk-resources-xml OUTPUT-FILE [INPUT-FILE1] [INPUT-FILE2] ...
+
+import os, sys
+
+source_shaders = []
+vulkan_compiled_shaders = []
+vulkan_shaders = []
+
+for f in sys.argv[2:]:
+  if f.endswith('.glsl'):
+    source_shaders.append(f)
+  elif f.endswith('.spv'):
+    vulkan_compiled_shaders.append(f)
+  elif f.endswith('.frag') or f.endswith('.vert'):
+    vulkan_shaders.append(f)
+  else:
+    sys.exit(-1) # FIXME: error message
+
+xml = '''<?xml version='1.0' encoding='UTF-8'?>
+<gresources>
+  <gresource prefix='/org/gtk/libgsk'>
+
+'''
+
+for f in source_shaders:
+  xml += '    <file alias=\'glsl/{0}\'>resources/glsl/{0}</file>\n'.format(os.path.basename(f))
+
+xml += '\n'
+
+for f in vulkan_compiled_shaders:
+  xml += '    <file alias=\'vulkan/{0}\'>resources/vulkan/{0}</file>\n'.format(os.path.basename(f))
+
+xml += '\n'
+
+for f in vulkan_shaders:
+  xml += '    <file alias=\'vulkan/{0}\'>resources/vulkan/{0}</file>\n'.format(os.path.basename(f))
+
+xml += '''
+  </gresource>
+</gresources>'''
+
+if len(sys.argv) > 1 and sys.argv[1] != '-':
+  outfile = sys.argv[1]
+  f = open(outfile, 'w')
+  f.write(xml)
+  f.close()
+else:
+  print(xml)
diff --git a/gsk/meson.build b/gsk/meson.build
index 5b2dddd..3605112 100644
--- a/gsk/meson.build
+++ b/gsk/meson.build
@@ -1,3 +1,16 @@
+gsk_private_source_shaders = [
+  'resources/glsl/blend.fs.glsl',
+  'resources/glsl/blend.vs.glsl',
+  'resources/glsl/blit.fs.glsl',
+  'resources/glsl/blit.vs.glsl',
+  'resources/glsl/es2_common.fs.glsl',
+  'resources/glsl/es2_common.vs.glsl',
+  'resources/glsl/gl3_common.fs.glsl',
+  'resources/glsl/gl3_common.vs.glsl',
+  'resources/glsl/gl_common.fs.glsl',
+  'resources/glsl/gl_common.vs.glsl',
+]
+
 gsk_public_sources = files([
   'gskrenderer.c',
   'gskrendernode.c',
@@ -6,7 +19,6 @@ gsk_public_sources = files([
   'gsktexture.c',
 ])
 
-# FIXME: + $(gsk_private_vulkan_source_c)
 gsk_private_sources = files([
   'gskcairoblur.c',
   'gskcairorenderer.c',
@@ -29,6 +41,9 @@ gsk_public_headers = files([
   'gsktypes.h',
 ])
 
+gsk_private_vulkan_shaders = []
+gsk_private_vulkan_compiled_shaders = []
+
 if have_vulkan
   gsk_private_sources += files([
     'gskvulkanblendpipeline.c',
@@ -50,39 +65,64 @@ if have_vulkan
     'gskvulkanshader.c',
   ])
 
-# FIXME: vulkan shaders
-#gsk_private_vulkan_include_shaders =',
-#  'resources/vulkan/clip.frag.glsl',
-#  'resources/vulkan/clip.vert.glsl',
-#  'resources/vulkan/constants.glsl',
-#  'resources/vulkan/rounded-rect.glsl
-#gsk_private_vulkan_fragment_shaders =',
-#  'resources/vulkan/blend.frag',
-#  'resources/vulkan/border.frag',
-#  'resources/vulkan/color.frag',
-#  'resources/vulkan/color-matrix.frag',
-#  'resources/vulkan/inset-shadow.frag',
-#  'resources/vulkan/linear.frag',
-#  'resources/vulkan/outset-shadow.frag
-#gsk_private_vulkan_vertex_shaders =',
-#  'resources/vulkan/blend.vert',
-#  'resources/vulkan/border.vert',
-#  'resources/vulkan/color.vert',
-#  'resources/vulkan/color-matrix.vert',
-#  'resources/vulkan/inset-shadow.vert',
-#  'resources/vulkan/linear.vert',
-#  'resources/vulkan/outset-shadow.vert
-#gsk_private_vulkan_shaders =',
-#  '$(gsk_private_vulkan_fragment_shaders)',
-#  '$(gsk_private_vulkan_vertex_shaders)
-#gsk_private_vulkan_compiled_shaders =',
-#  '$(gsk_private_vulkan_fragment_shaders:.frag=.frag.spv)',
-#  '$(gsk_private_vulkan_vertex_shaders:.vert=.vert.spv)',
-#  '$(gsk_private_vulkan_fragment_shaders:.frag=-clip.frag.spv)',
-#  '$(gsk_private_vulkan_vertex_shaders:.vert=-clip.vert.spv)',
-#  '$(gsk_private_vulkan_fragment_shaders:.frag=-clip-rounded.frag.spv)',
-#  '$(gsk_private_vulkan_vertex_shaders:.vert=-clip-rounded.vert.spv)
-endif
+# FIXME: what's up with these?
+#  gsk_private_vulkan_include_shaders = [
+#    'resources/vulkan/clip.frag.glsl',
+#    'resources/vulkan/clip.vert.glsl',
+#    'resources/vulkan/constants.glsl',
+#    'resources/vulkan/rounded-rect.glsl',
+#  ]
+
+  gsk_private_vulkan_fragment_shaders = [
+    'resources/vulkan/blend.frag',
+    'resources/vulkan/border.frag',
+    'resources/vulkan/color.frag',
+    'resources/vulkan/color-matrix.frag',
+    'resources/vulkan/inset-shadow.frag',
+    'resources/vulkan/linear.frag',
+    'resources/vulkan/outset-shadow.frag',
+  ]
+
+  gsk_private_vulkan_vertex_shaders = [
+    'resources/vulkan/blend.vert',
+    'resources/vulkan/border.vert',
+    'resources/vulkan/color.vert',
+    'resources/vulkan/color-matrix.vert',
+    'resources/vulkan/inset-shadow.vert',
+    'resources/vulkan/linear.vert',
+    'resources/vulkan/outset-shadow.vert',
+  ]
+
+  gsk_private_vulkan_shaders += gsk_private_vulkan_fragment_shaders
+  gsk_private_vulkan_shaders += gsk_private_vulkan_vertex_shaders
+
+  foreach shader : gsk_private_vulkan_shaders
+    basefn = shader.split('.').get(0)
+    suffix = shader.split('.').get(1)
+
+    # FIXME: the compiled shaders seem to exist in the srcdir already, do we
+    # want to or need to add a target to create them with glslc? Do we need to
+    # check for glslc at all then?
+    #
+    # stage_arg = suffix == 'frag' ? '-fshader-stage=fragment' : '-fshader-stage=vertex'
+    # compiled_shader = custom_target('xyz', input : shader,
+    #   output : '@0@.@1@.spv'.format(basefn, suffix),
+    #   command: [glslc, stage_arg, '-DCLIP_NONE', '-o', '@OUTPUT@'])
+
+    gsk_private_vulkan_compiled_shaders += '@0@.@1@.spv'.format(basefn, suffix)
+    gsk_private_vulkan_compiled_shaders += '@0@-clip.@1@.spv'.format(basefn, suffix)
+    gsk_private_vulkan_compiled_shaders += '@0@-clip-rounded.@1@.spv'.format(basefn, suffix)
+  endforeach
+
+endif # have_vulkan
+
+gsk_resources_xml = configure_file(output : 'gsk.resources.xml',
+  input : 'gen-gsk-resources-xml.py',
+  command : [find_program('gen-gsk-resources-xml.py'),
+             '@OUTPUT@',
+             gsk_private_source_shaders,
+             gsk_private_vulkan_compiled_shaders,
+             gsk_private_vulkan_shaders])
 
 # FIXME: do we need this variable?
 gsk_sources = gsk_public_sources + gsk_private_sources
@@ -100,13 +140,11 @@ gskenum_c = custom_target(
   depends : gskenum_h,
   command : [mkenum, perl, glib_mkenums, meson.current_source_dir() + '/gskenumtypes.c.template', 
'@OUTPUT@', '@INPUT@'])
 
-gskresources = gnome.compile_resources(
-  'gskresources',
-  'gsk.resources.xml',
+gskresources = gnome.compile_resources('gskresources',
+  gsk_resources_xml,
   source_dir: '.',
   c_name: '_gsk',
-  extra_args: '--manual-register'
-)
+  extra_args: '--manual-register')
 
 
 gsk_deps = [