pw_display: Color library

Introduce color data types for RGB565 and RGBA8888 along with conversion functions and pre defined constants for two palettes. The palettes are primarily used for tests for the upcoming drawing library. Bug: 359953386 Change-Id: Ia409669d0f566f8873d79d1575453b80175cde20 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/229606 Reviewed-by: Taylor Cramer <[email protected]> Lint: Lint 🤖 <[email protected]> Commit-Queue: Anthony DiGirolamo <[email protected]> Reviewed-by: Armando Montanez <[email protected]>
google · Aug 15, 2024 · 010825d · 010825d
1 parent 56ac0e6
commit 010825d
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Showing 10 changed files with 751 additions and 3 deletions.
diff --git a/docs/BUILD.gn b/docs/BUILD.gn
@@ -233,6 +233,7 @@ _doxygen_input_files = [  # keep-sorted: start
   "$dir_pw_crypto/public/pw_crypto/sha256.h",
   "$dir_pw_digital_io/public/pw_digital_io/digital_io.h",
   "$dir_pw_digital_io/public/pw_digital_io/digital_io_mock.h",
+  "$dir_pw_display/public/pw_display/color.h",
   "$dir_pw_function/public/pw_function/function.h",
   "$dir_pw_function/public/pw_function/pointer.h",
   "$dir_pw_function/public/pw_function/scope_guard.h",

diff --git a/pw_display/BUILD.bazel b/pw_display/BUILD.bazel
@@ -12,6 +12,27 @@
 # License for the specific language governing permissions and limitations under
 # the License.
 
+load(
+    "@pigweed//pw_build:pigweed.bzl",
+    "pw_cc_test",
+)
+
 package(default_visibility = ["//visibility:public"])
 
 licenses(["notice"])
+
+cc_library(
+    name = "color",
+    hdrs = [
+        "public/pw_display/color.h",
+        "public/pw_display/colors_endesga64.h",
+        "public/pw_display/colors_pico8.h",
+    ],
+    includes = ["public"],
+)
+
+pw_cc_test(
+    name = "color_test",
+    srcs = ["color_test.cc"],
+    deps = [":color"],
+)
diff --git a/pw_display/BUILD.gn b/pw_display/BUILD.gn
@@ -19,10 +19,31 @@ import("$dir_pw_docgen/docs.gni")
 import("$dir_pw_sync/backend.gni")
 import("$dir_pw_unit_test/test.gni")
 
+config("public_include_path") {
+  include_dirs = [ "public" ]
+}
+
+pw_source_set("color") {
+  public_configs = [ ":public_include_path" ]
+  public = [
+    "public/pw_display/color.h",
+    "public/pw_display/colors_endesga64.h",
+    "public/pw_display/colors_pico8.h",
+  ]
+}
+
+pw_test("color_test") {
+  deps = [ ":color" ]
+  sources = [ "color_test.cc" ]
+}
+
 pw_test_group("tests") {
-  tests = []
+  tests = [ ":color_test" ]
 }
 
 pw_doc_group("docs") {
-  sources = [ "docs.rst" ]
+  sources = [
+    "api.rst",
+    "docs.rst",
+  ]
 }
diff --git a/pw_display/CMakeLists.txt b/pw_display/CMakeLists.txt
@@ -13,3 +13,22 @@
 # the License.
 
 include($ENV{PW_ROOT}/pw_build/pigweed.cmake)
+
+pw_add_library(pw_display.color INTERFACE
+  HEADERS
+    public/pw_display/color.h
+    public/pw_display/colors_endesga64.h
+    public/pw_display/colors_pico8.h
+  PUBLIC_INCLUDES
+    public
+)
+
+pw_add_test(pw_display.color_test
+  SOURCES
+    color_test.cc
+  PRIVATE_DEPS
+    pw_display.color
+  GROUPS
+    modules
+    pw_display
+)