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b72938c861
An existing hint lets apps that don't need the timer resolution changed avoid this, to save battery, etc, but this fixes several problems in timing, audio callbacks not firing fast enough, etc. Fixes Bugzilla #2944.
120 lines
4.0 KiB
C
120 lines
4.0 KiB
C
/* See COPYING.txt for the full license governing this code. */
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/**
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* \file SDL_visualtest_variator_common.h
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*
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* Header for common functionality used by variators.
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*/
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#include <SDL_types.h>
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#include "SDL_visualtest_sut_configparser.h"
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#ifndef _SDL_visualtest_variator_common_h
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#define _SDL_visualtest_variator_common_h
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/** The number of variations one integer option would generate */
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#define SDL_SUT_INTEGER_OPTION_TEST_STEPS 3
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** enum for indicating the type of variator being used */
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typedef enum SDLVisualTest_VariatorType
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{
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SDL_VARIATOR_NONE = 0,
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SDL_VARIATOR_EXHAUSTIVE,
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SDL_VARIATOR_RANDOM
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} SDLVisualTest_VariatorType;
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/**
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* One possible value for a command line option to the SUT.
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*/
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typedef union SDLVisualTest_SUTOptionValue
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{
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/*! Value if the option is of type boolean */
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SDL_bool bool_value;
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/*! Value if the option is of type integer. If on is true then the option
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will be passed to the SUT, otherwise it will be ignored. */
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struct {
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int value;
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SDL_bool on;
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} integer;
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/*! Index of the string in the enum_values field of the corresponding
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SDLVisualTest_SUTOption object. If on is true the option will passed
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to the SUT, otherwise it will be ignored. */
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struct {
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int index;
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SDL_bool on;
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} enumerated;
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/*! Value if the option is of type string. If on is true the option will
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be passed to the SUT, otherwise it will be ignored. */
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struct {
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char* value;
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SDL_bool on;
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} string;
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} SDLVisualTest_SUTOptionValue;
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/**
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* Represents a valid combination of parameters that can be passed to the SUT.
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* The ordering of the values here is the same as the ordering of the options in
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* the SDLVisualTest_SUTConfig object for this variation.
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*/
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typedef struct SDLVisualTest_Variation
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{
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/*! Pointer to array of option values */
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SDLVisualTest_SUTOptionValue* vars;
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/*! Number of option values in \c vars */
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int num_vars;
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} SDLVisualTest_Variation;
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/**
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* "Increments" the value of the option by one and returns the carry. We wrap
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* around to the initial value on overflow which makes the carry one.
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* For example: "incrementing" an SDL_FALSE option makes it SDL_TRUE with no
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* carry, and "incrementing" an SDL_TRUE option makes it SDL_FALSE with carry
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* one. For integers, a random value in the valid range for the option is used.
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*
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* \param var Value of the option
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* \param opt Object with metadata about the option
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*
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* \return 1 if there is a carry for enum and bool type options, 0 otherwise.
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* 1 is always returned for integer and string type options. -1 is
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* returned on error.
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*/
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int SDLVisualTest_NextValue(SDLVisualTest_SUTOptionValue* var,
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SDLVisualTest_SUTOption* opt);
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/**
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* Converts a variation object into a string of command line arguments.
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*
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* \param variation Variation object to be converted.
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* \param config Config object for the SUT.
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* \param buffer Pointer to the buffer the arguments string will be copied into.
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* \param size Size of the buffer.
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*
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* \return 1 on success, 0 on failure
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*/
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int SDLVisualTest_MakeStrFromVariation(SDLVisualTest_Variation* variation,
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SDLVisualTest_SUTConfig* config,
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char* buffer, int size);
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/**
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* Initializes the variation using the following rules:
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* - Boolean options are initialized to SDL_FALSE.
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* - Integer options are initialized to the minimum valid value they can hold.
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* - Enum options are initialized to the first element in the list of values they
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* can take.
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* - String options are initialized to the name of the option.
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*
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* \return 1 on success, 0 on failure.
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*/
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int SDLVisualTest_InitVariation(SDLVisualTest_Variation* variation,
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SDLVisualTest_SUTConfig* config);
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SDL_visualtest_variator_common_h */ |