v1.2.2 | 2024/08/09 13:09 | Added more precision options to ABS-Fract…

…al explorer, increasing the maximum zoom along with improving performance.

.gitignore

@@ -1,4 +1,7 @@
 desktop.ini
 .vscode
+.vs
 imgui.ini
-.cache
+.cache
+out
+CMakeSettings.json

CMakeLists.txt

@@ -18,10 +18,10 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "./bin")
 	# GCC quadmath __float128
 	set(FEATURE_Float128      "")
 
-	# Requires libqd.a
+	# (Deprecated) Requires libqd.a
 #	set(FEATURE_LIBQD         "")
 
-	# MPFR converts between dekker-floats and strings
+	# MPFR converts between coordinates and strings
 	set(FEATURE_FloatMPFR     "")
 
 	# GPU Rendering (OpenCL 1.2 or later)
@@ -35,9 +35,6 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "./bin")
 	# Requires libquadmath.a
 #	set(STATIC_OpenCV_Scaler  "")
 
-	# Defines the NDEBUG macro to disable <cassert>
-#   target_compile_definitions(${PROJECT_NAME} PRIVATE NDEBUG)
-
 	# Long compile times! Optimizes and reduces the size of the binary for release
 #   set(COMPILE_FLTO "")
 
@@ -54,7 +51,7 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "./bin")
 	set(LIBRARY_OPT_FLAG -O3)
 	# -Ofast appears to have a noticable speedup compared to -O3 for SSE2 and AVX rendering.
 	set(RENDER_CPU_OPT_FLAG -Ofast)
-	set(MARCH_FLAGS -msse2)
+	set(MARCH_FLAGS -msse3)
 
 # Source Files
 	file(GLOB_RECURSE SRC_FILES
@@ -70,11 +67,13 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "./bin")
 	endif()
 
 
-
-	file(GLOB SRC_AVX_FILES "${SRC_DIR}/render_CPU/frac_Multi_AVX.cpp")
-	set_source_files_properties(SOURCE ${SRC_AVX_FILES} PROPERTY COMPILE_FLAGS "-mavx ${RENDER_CPU_OPT_FLAG}")
 	file(GLOB SRC_AVX_FILES "${SRC_DIR}/render_CPU/frac_Multi_SSE2.cpp")
 	set_source_files_properties(SOURCE ${SRC_AVX_FILES} PROPERTY COMPILE_FLAGS "${RENDER_CPU_OPT_FLAG}")
+	file(GLOB SRC_AVX_FILES "${SRC_DIR}/render_CPU/frac_Multi_AVX.cpp")
+	set_source_files_properties(SOURCE ${SRC_AVX_FILES} PROPERTY COMPILE_FLAGS "-mavx ${RENDER_CPU_OPT_FLAG}")
+	file(GLOB SRC_AVX_FILES "${SRC_DIR}/render_CPU/frac_Multi_Float64x2_AVX.cpp")
+	set_source_files_properties(SOURCE ${SRC_AVX_FILES} PROPERTY COMPILE_FLAGS "-mavx ${PROGRAM_OPT_FLAG}")
+
 
 # Icon
 	set(ICON_FILE "./icons/ABS-Icon.o")
@@ -89,6 +88,9 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "./bin")
 # Packages and Macros
 	find_package(SDL2 REQUIRED)
 
+	# Defines the NDEBUG macro to disable <cassert>
+#	target_compile_definitions(${PROJECT_NAME} PRIVATE NDEBUG)
+
 	if(DEFINED FEATURE_Float80)
 		target_compile_definitions(${PROJECT_NAME} PRIVATE Enable_Float80)
 	endif()
@@ -170,8 +172,6 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "./bin")
 
 # Compile Options
 
-	set(MARCH_FLAGS -msse3 -mavx)
-
 	set(WARNING_FLAGS
 		-Wall -Wextra -Wshadow
 		-Werror=infinite-recursion

docs/Build-Instructions.md

@@ -1,7 +1,7 @@
 Build Instructions<br>
-ABS-Fractal-Explorer v1.2.1 rev-2
+ABS-Fractal-Explorer v1.2.2
 
-Updated: 2024/06/09
+Updated: 2024/08/09
 
 You can read this guide:
 https://github.com/ZERICO2005/ABS-Fractal-Explorer/wiki/How-to-Compile
@@ -16,9 +16,15 @@ Enables 80bit floats (`long double` or `__float80`) for extra precision. Used to
 ## Float128
 Enables 128bit floats (quadmath.h) for extra precision. Used to store cordinates if it is the highest available precision.
 
+## libqd
+(Deprecated) Experimental double-double/quad-double float support. May require some manual configuration to enable it as a rendering mode.
+
 ## OpenCL
 Enables OpenCL GPU rendering
 
+## MPFR
+Used to convert between coordinates and strings
+
 ## WindowsFileIO
 (Not implemented in v1.2.1 rev-2)<br>
 Uses the Windows file dialogs instead of the generic ones

docs/Libraries-Used.md

@@ -50,11 +50,22 @@ Used for GPU rendering
 https://gcc.gnu.org/onlinedocs/libquadmath/
 Used for high precision 128bit float calculations
 
+## MPFR
+Used for converting between coordinates and strings with greater accuracy.
+
+## libQD
+https://www.davidhbailey.com/dhbsoftware/
+Used for experimental quad-double and double-double arithmetic support.
+
+## LIB-Dekker-Float
+https://github.com/ZERICO2005/LIB-Dekker-Float
+A header-only library I wrote for the Dekker float implementations used in ABS-Fractal-Explorer. Float64x2 is roughly the same speed as dd_real in libQD, while Float64x2 AVX is ~3.3x faster for rendering fractals.
+
 ## STB Image
 https://github.com/nothings/stb
 Used for writing PNG/JPG images
 
 ## OpenCV
 https://opencv.org/
-Used for frame scaling in custom versions of ABS-Fractal-Explorer
+Used for frame scaling in some versions of ABS-Fractal-Explorer
 

docs/README.txt

@@ -1,5 +1,5 @@
-ABS-Fractal-Explorer v1.2.1 (Revision-2) (Windows 10 Edition)
-zerico2005 | 2024/06/09
+ABS-Fractal-Explorer v1.2.2 (Windows 10 Edition)
+zerico2005 | 2024/08/09
 
 ABS-Fractal-Explorer will allow you to explore hundereds of different Mandelbrot variants. From Quadratic to Sextic fractals, there is always something new and novel to explore!
 
@@ -30,7 +30,9 @@ Controls (Full controls/keybinds are in the Key-binds Menu):
 		;": Inc/dec supersampling (Renders at higher quality but is much slower)
 		M : fp32 GPU rendering (10^5.7 max zoom, fastest)
 		N : fp64 CPU rendering (10^14.4 max zoom)
-		B : fp80 CPU rendering (10^17.7 max zoom)
+		B : fp80 CPU rendering (10^17.8 max zoom)
+		Rctrl: fp64x2 CPU rendering (10^30.7 max zoom)
+		View the rendering menu for more precision options.
 	Julia-Sets:
 		C: Toggle Julia Sets
 		V: Toggle Starting Z-Value

docs/Update-Log.txt

@@ -1,5 +1,10 @@
 ABS-Fractal-Explorer Update-Log
 
+# v1.2.2 (2024/08/09)
+* Added Dekker floats, increasing the maximum precision from 10^32.5 to 10^36.7
+* Precisions added: Float32x2 (10^12.6), Float64x2 (10^30.7), Float80x2 (10^36.7)
+* General improvements and bug fixes.
+
 # v1.2.1 (Revision-2) (2024/06/09)
 * Corrected color averaging algorithm
 

src/Program_Def.cpp

@@ -140,10 +140,12 @@
 #else
 
 	int FloatCoordinate_snprintf(char* buf, size_t len, const char* format, fpCord cord) {
-		#if defined(Enable_Float128)
+		#if defined(Enable_Float80)
+			return Float80x2_snprintf(buf, len, format, cord);
+		#elif defined(Enable_Float128)
 			return quadmath_snprintf(buf, len, format, (fp128)cord);
 		#else
-			return snprintf(buf, len, format, cord);
+			return Float64x2_snprintf(buf, len, format, cord);
 		#endif
 	}
 
@@ -174,12 +176,12 @@
 	}
 
 	fpCord stringTo_FloatCoordinate(const char* nPtr, char** endPtr) {
-		#if defined(Enable_Float128)
+		#if defined(Enable_Float80)
+			return (fpCord)stringTo_Float80x2(nPtr, endPtr);
+		#elif defined(Enable_Float128)
 			return (fpCord)stringTo_Float128(nPtr, endPtr);
-		#elif defined(Enable_Float80)
-			return (fpCord)stringTo_Float80(nPtr, endPtr);
 		#else
-			return (fpCord)stringTo_Float64(nPtr, endPtr);
+			return (fpCord)stringTo_Float64x2(nPtr, endPtr);
 		#endif
 	}
 

src/Program_Def.h

@@ -37,11 +37,11 @@
 /* Version */
 
 #define PROGRAM_NAME "ABS-Fractal-Explorer"
-#define PROGRAM_DATE "2024/08/08" /* YYYY/MM/DD */
+#define PROGRAM_DATE "2024/08/09" /* YYYY/MM/DD */
 #define PROGRAM_V_MAJOR 1
 #define PROGRAM_V_MINOR 2
-#define PROGRAM_V_PATCH 1
-#define PROGRAM_V_TAG "(Revision-12)"
+#define PROGRAM_V_PATCH 2
+#define PROGRAM_V_TAG ""
 #define PROGRAM_VERSION STR_N(PROGRAM_V_MAJOR) "." STR_N(PROGRAM_V_MINOR) "." STR_N(PROGRAM_V_PATCH) " " PROGRAM_V_TAG
 
 /* Float80 and Float128 */