get/set device dpy, premult alpha optional

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 314b8f207eee2a8125006408290b84e5c4a5b8d0..f66dcb0b1cf177c1a4530701ecdbe8cec9eafdc2 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,10 @@ CMAKE_MINIMUM_REQUIRED(VERSION 3.9)
 
 PROJECT(vkvg VERSION 0.1.0 DESCRIPTION "Vulkan Vector Graphic")
 
+INCLUDE(CheckSymbolExists)
+INCLUDE(CheckIncludeFile)
+INCLUDE(GNUInstallDirs)
+
 SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 SET(CMAKE_CXX_FLAGS "-W -Wall -Wno-extra")
 SET(CMAKE_EXE_LINKER_FLAGS "-lm")
@@ -19,16 +23,16 @@ ELSE()
        UNSET(ENABLE_WIRED_FILL CACHE)
 ENDIF()
 
+OPTION(VKVG_PREMULT_ALPHA "use premultiplied alpha for internal rendering" ON)
+IF (VKVG_PREMULT_ALPHA)
+       ADD_DEFINITIONS (-DVKVG_PREMULT_ALPHA)
+ENDIF ()
+
 OPTION(VKVG_TILING_OPTIMAL "use VK_IMAGE_TILING_OPTIMAL for surface backend texture" OFF)
 IF (VKVG_TILING_OPTIMAL)
        ADD_DEFINITIONS (-DVKVG_TILING_OPTIMAL)
 ENDIF ()
 
-OPTION(VKVG_LCD_FONT_FILTER "enable freetype lcd font filtering" ON)
-IF (VKVG_LCD_FONT_FILTER)
-       ADD_DEFINITIONS (-DVKVG_LCD_FONT_FILTER)
-ENDIF ()
-
 OPTION(VKVG_BUILD_TESTS "build tests with glfw" ON)
 
 set(VULKAN_SDK "$ENV{VULKAN_SDK}" CACHE STRING "LunarG Vulkan SDK path")
@@ -57,7 +61,14 @@ FIND_PACKAGE(Freetype REQUIRED)
 FIND_PACKAGE(FontConfig REQUIRED)
 FIND_PACKAGE(HarfBuzz REQUIRED)
 
-INCLUDE(GNUInstallDirs)
+#Freetype lcd font filtering
+#CHECK_SYMBOL_EXISTS (FT_CONFIG_OPTION_SUBPIXEL_RENDERING "${FREETYPE_INCLUDE_DIR_freetype2}/freetype/config/ftoption.h" FT_HAS_SUBPIXEL_RENDERING)
+#IF (FT_HAS_SUBPIXEL_RENDERING)
+       OPTION(VKVG_LCD_FONT_FILTER "enable freetype lcd font filtering" ON)
+       IF (VKVG_LCD_FONT_FILTER)
+               ADD_DEFINITIONS (-DVKVG_LCD_FONT_FILTER)
+       ENDIF ()
+#ENDIF()
 
 # Find glslc shader compiler.
 # On Android, the NDK includes the binary, so no external dependency.
@@ -150,8 +161,8 @@ INSTALL(TARGETS vkvg
        PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 
 FUNCTION (buildtest TEST_NAME)
-       ADD_EXECUTABLE(${PROJECT_NAME}_${TEST_NAME} "tests/${TEST_NAME}.c" )
-       TARGET_INCLUDE_DIRECTORIES(${PROJECT_NAME}_${TEST_NAME} PRIVATE
+       ADD_EXECUTABLE(test_${TEST_NAME} "tests/${TEST_NAME}.c" )
+       TARGET_INCLUDE_DIRECTORIES(test_${TEST_NAME} PRIVATE
                ${Vulkan_INCLUDE_DIRS}
                ${CMAKE_CURRENT_SOURCE_DIR}/include
                ${CMAKE_CURRENT_SOURCE_DIR}/src
@@ -159,11 +170,7 @@ FUNCTION (buildtest TEST_NAME)
                ${CMAKE_CURRENT_SOURCE_DIR}/vkh/include
                ${CMAKE_CURRENT_SOURCE_DIR}/vkh/src
        )
-       TARGET_LINK_LIBRARIES(${PROJECT_NAME}_${TEST_NAME}
-               #${Vulkan_LIBRARIES}
-               #${GLFW3_LIBRARIES}
-               #vkh_static
-               #vkvg
+       TARGET_LINK_LIBRARIES(test_${TEST_NAME}
                tests_common
        )
 ENDFUNCTION (buildtest)
@@ -216,10 +223,20 @@ IF (ENABLE_VALIDATION)
 ELSE ()
        MESSAGE(STATUS "Validation\t\t= disabled.")
 ENDIF ()
+IF (VKVG_PREMULT_ALPHA)
+MESSAGE(STATUS "Premult Alpha\t= enabled.")
+ELSE ()
+MESSAGE(STATUS "Premult Alpha\t= disabled.")
+ENDIF ()
 IF (VKVG_TILING_OPTIMAL)
 MESSAGE(STATUS "Surface tiling\t= VK_IMAGE_TILING_OPTIMAL.")
 ELSE ()
 MESSAGE(STATUS "Surface tiling\t= VK_IMAGE_TILING_LINEAR.")
 ENDIF ()
+IF (VKVG_LCD_FONT_FILTER)
+MESSAGE(STATUS "Font filtering\t= LCD.")
+ELSE ()
+MESSAGE(STATUS "Font filtering\t= Grayscale.")
+ENDIF ()
 MESSAGE(STATUS "---------------------------------------------------------------------------\n\n")
 

diff --git a/CMakeLists.txt.user.4.8-pre1 b/CMakeLists.txt.user.4.8-pre1
deleted file mode 100644 (file)
index f37959b..0000000
--- a/CMakeLists.txt.user.4.8-pre1
+++ /dev/null
@@ -1,667 +0,0 @@
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-    <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableEventToolTips">true</value>
-    <value type="double" key="Analyzer.Valgrind.Callgrind.MinimumCostRatio">0.01</value>
-    <value type="double" key="Analyzer.Valgrind.Callgrind.VisualisationMinimumCostRatio">10</value>
-    <value type="bool" key="Analyzer.Valgrind.FilterExternalIssues">true</value>
-    <value type="int" key="Analyzer.Valgrind.LeakCheckOnFinish">1</value>
-    <value type="int" key="Analyzer.Valgrind.NumCallers">25</value>
-    <valuelist type="QVariantList" key="Analyzer.Valgrind.RemovedSuppressionFiles"/>
-    <value type="int" key="Analyzer.Valgrind.SelfModifyingCodeDetection">1</value>
-    <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
-    <value type="bool" key="Analyzer.Valgrind.ShowReachable">false</value>
-    <value type="bool" key="Analyzer.Valgrind.TrackOrigins">true</value>
-    <value type="QString" key="Analyzer.Valgrind.ValgrindExecutable">valgrind</value>
-    <valuelist type="QVariantList" key="Analyzer.Valgrind.VisibleErrorKinds">
-     <value type="int">0</value>
-     <value type="int">1</value>
-     <value type="int">2</value>
-     <value type="int">3</value>
-     <value type="int">4</value>
-     <value type="int">5</value>
-     <value type="int">6</value>
-     <value type="int">7</value>
-     <value type="int">8</value>
-     <value type="int">9</value>
-     <value type="int">10</value>
-     <value type="int">11</value>
-     <value type="int">12</value>
-     <value type="int">13</value>
-     <value type="int">14</value>
-    </valuelist>
-    <value type="QString" key="CMakeProjectManager.CMakeRunConfiguration.Arguments"></value>
-    <value type="QString" key="CMakeProjectManager.CMakeRunConfiguration.UserWorkingDirectory"></value>
-    <value type="QString" key="CMakeProjectManager.CMakeRunConfiguration.UserWorkingDirectory.default"></value>
-    <value type="int" key="PE.EnvironmentAspect.Base">2</value>
-    <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">vkvg_test</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeRunConfiguration.vkvg_test</value>
-    <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
-    <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
-    <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
-    <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
-    <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
-    <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
-   </valuemap>
-   <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
-  </valuemap>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.TargetCount</variable>
-  <value type="int">2</value>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
-  <value type="int">18</value>
- </data>
- <data>
-  <variable>Version</variable>
-  <value type="int">18</value>
- </data>
-</qtcreator>

diff --git a/include/vkvg.h b/include/vkvg.h
index 108461e3bbc75593c784e21d7a7f25de1978ce29..d4a47c76775aa25369e5ed73e1da31f76ceb6036 100644 (file)
--- a/include/vkvg.h
+++ b/include/vkvg.h
@@ -165,6 +165,8 @@ VkvgDevice  vkvg_device_create_multisample  (VkInstance inst, VkPhysicalDevice p
 void           vkvg_device_destroy             (VkvgDevice dev);
 VkvgDevice  vkvg_device_reference           (VkvgDevice dev);
 uint32_t    vkvg_device_get_reference_count (VkvgDevice dev);
+void        vkvg_device_set_dpy             (VkvgDevice dev, int hdpy, int vdpy);
+void        vkvg_device_get_dpy             (VkvgDevice dev, int* hdpy, int* vdpy);
 
 VkvgSurface vkvg_surface_create                        (VkvgDevice dev, uint32_t width, uint32_t height);
 VkvgSurface vkvg_surface_create_from_image  (VkvgDevice dev, const char* filePath);

diff --git a/src/vkvg_device.c b/src/vkvg_device.c
index 1ea7e79844e4fdcf1b8e42874d086dda123f322f..3d22fbf65886aa0f0d910ad28a71fea8049465df 100644 (file)
--- a/src/vkvg_device.c
+++ b/src/vkvg_device.c
@@ -57,8 +57,8 @@ VkvgDevice vkvg_device_create_multisample(VkInstance inst, VkPhysicalDevice phy,
     VkvgDevice dev = (vkvg_device*)malloc(sizeof(vkvg_device));
 
     dev->instance = inst;
-    dev->hdpi   = 72;
-    dev->vdpi   = 72;
+    dev->hdpi   = 96;
+    dev->vdpi   = 96;
     dev->samples= samples;
     dev->deferredResolve = deferredResolve;
     dev->vkDev  = vkdev;
@@ -154,3 +154,25 @@ VkvgDevice vkvg_device_reference (VkvgDevice dev) {
 uint32_t vkvg_device_get_reference_count (VkvgDevice dev) {
     return dev->references;
 }
+/**
+ * @brief set horizontal and vertical resolution of device in dot per inch
+ * @param vkvg device pointer
+ * @param horizontal device resolution in dot per inch
+ * @param vertical device resolution in dot per inch
+ */
+void vkvg_device_set_dpy (VkvgDevice dev, int hdpy, int vdpy) {
+    dev->hdpi = hdpy;
+    dev->vdpi = vdpy;
+
+    //TODO: reset font cache
+}
+/**
+ * @brief get horizontal and vertical resolution of device in dot per inch
+ * @param vkvg device pointer
+ * @param return horizontal device resolution in dot per inch
+ * @param return vertical device resolution in dot per inch
+ */
+void vkvg_device_get_dpy (VkvgDevice dev, int* hdpy, int* vdpy) {
+    *hdpy = dev->hdpi;
+    *vdpy = dev->vdpi;
+}

diff --git a/src/vkvg_device_internal.c b/src/vkvg_device_internal.c
index 42e1c8810350cf2728ee257c16358806e6d6dbbb..0ccdbbaa36bbeadd7e93becf3b754f68c85d893d 100644 (file)
--- a/src/vkvg_device_internal.c
+++ b/src/vkvg_device_internal.c
@@ -182,12 +182,21 @@ void _setupPipelines(VkvgDevice dev)
 
     VkPipelineColorBlendAttachmentState blendAttachmentState =
     { .colorWriteMask = 0x0, .blendEnable = VK_TRUE,
+#ifdef VKVG_PREMULT_ALPHA
       .srcColorBlendFactor = VK_BLEND_FACTOR_ONE,
+      .dstColorBlendFactor= VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
+      .colorBlendOp = VK_BLEND_OP_ADD,
       .srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
+      .dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO,
+      .alphaBlendOp = VK_BLEND_OP_ADD,
+#else
+      .srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA,
       .dstColorBlendFactor= VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
-      .dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
       .colorBlendOp = VK_BLEND_OP_ADD,
+      .srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
+      .dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO,
       .alphaBlendOp = VK_BLEND_OP_ADD,
+#endif
     };
 
     VkPipelineColorBlendStateCreateInfo colorBlendState = { .sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,

diff --git a/src/vkvg_pattern.c b/src/vkvg_pattern.c
index ba74bf50ed5c4e9f96ac0b61ed9b29d126d94181..a7126d1b7bc1735c0f5e7446012196cbaeeeb792 100644 (file)
--- a/src/vkvg_pattern.c
+++ b/src/vkvg_pattern.c
@@ -40,11 +40,19 @@ VkvgPattern vkvg_pattern_create_rgba (float r, float g, float b, float a){
     pat->type = VKVG_PATTERN_TYPE_SOLID;
     pat->extend = VKVG_EXTEND_NONE;
     vkvg_color_t* c = (vkvg_color_t*)calloc(1,sizeof(vkvg_color_t));
-    //premultiplied alpha
+
+#ifdef VKVG_PREMULT_ALPHA
     c->r = r * a;
     c->g = g * a;
     c->b = b * a;
-    c->a = a;// > 0.f ? 1.f : 0.f;
+    c->a = a;
+#else
+    c->r = r;
+    c->g = g;
+    c->b = b;
+    c->a = a;
+#endif
+
     pat->data = c;
 
     pat->references = 1;

diff --git a/tests/common/vkengine.h b/tests/common/vkengine.h
index b4505f828500c569894c0fbf8b13a51eacb90c13..3f80c5e134df085dd2be2d3f542ec8b977bef1c2 100644 (file)
--- a/tests/common/vkengine.h
+++ b/tests/common/vkengine.h
@@ -32,8 +32,6 @@
 
 #include "vkh.h"
 
-/* Number of samples needs to be the same at image creation,      */
-/* renderpass creation and pipeline creation.                     */
 #define FENCE_TIMEOUT 100000000
 
 typedef struct _vk_engine_t* VkEngine;

diff --git a/tests/compositing.c b/tests/compositing.c
new file mode 100644 (file)
index 0000000..56e3d45
--- /dev/null
+++ b/tests/compositing.c
@@ -0,0 +1,24 @@
+#include "test.h"
+
+void test(){
+    vkvg_surface_clear(surf);
+
+    VkvgContext ctx = vkvg_create(surf);
+
+    vkvg_set_source_rgba(ctx, 1,0,0,0.5);
+    vkvg_rectangle(ctx,100,100,200,200);
+    vkvg_fill(ctx);
+
+    vkvg_set_source_rgba(ctx, 0,0,1,0.5);
+    vkvg_rectangle(ctx,200,200,200,200);
+    vkvg_fill(ctx);
+
+    vkvg_destroy(ctx);
+}
+
+int main(int argc, char *argv[]) {
+
+    perform_test (test, 600, 800);
+
+    return 0;
+}