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[apps/graph/test] Fix caching test

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Change-Id: I536d1422ca6c9ecded66f7876ae019aaf5742005
This commit is contained in:
Hugo Saint-Vignes
2020-08-31 11:21:55 +02:00
committed by Émilie Feral
parent 70a628f2c8
commit 8fdec305c4
4 changed files with 35 additions and 17 deletions
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13
apps/shared/continuous_function_cache.h
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@@ -11,16 +11,8 @@ namespace Shared {
class ContinuousFunction;
class ContinuousFunctionCache {
private:
/* The size of the cache is chosen to optimize the display of cartesian
* functions */
static constexpr int k_sizeOfCache = Ion::Display::Width;
public:
static constexpr int k_numberOfAvailableCaches = 2;
/* Parametric and polar functions require caching both x and y values,
* with the same k_sizeOfCache. To cover the entire range,
* k_numberOfParametricCacheablePoints is halved. */
static constexpr int k_numberOfParametricCacheablePoints = k_sizeOfCache / 2;
static void PrepareForCaching(void * fun, ContinuousFunctionCache * cache, float tMin, float tStep);
@@ -29,7 +21,12 @@ public:
float step() const { return m_tStep; }
void clear();
Poincare::Coordinate2D<float> valueForParameter(const ContinuousFunction * function, Poincare::Context * context, float t);
// Sets step parameters for non-cartesian curves
static void ComputeNonCartesianSteps(float * tStep, float * tCacheStep, float tMax, float tMin);
private:
/* The size of the cache is chosen to optimize the display of cartesian
* functions */
static constexpr int k_sizeOfCache = Ion::Display::Width;
/* We need a certain amount of tolerance since we try to evaluate the
* equality of floats. But the value has to be chosen carefully. Too high of
* a tolerance causes false positives, which lead to errors in curves