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gs-effect: Add HasParameter and fix Set*Array

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HasParameter can be used to safely check if a parameter exists and such should be preferred over try-catch blocks. Additionally, SetFloat2, SetFloat3, SetFloat4, SetFloatArray, SetInteger2, SetInteger3, SetInteger4 and SetIntegerArray should no longer cause rendering issues due to invalid buffer sizes.
This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2018-01-25 09:12:47 +01:00
parent 080048a471
commit 107103001b
2 changed files with 27 additions and 12 deletions
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37
source/gs-effect.cpp
View file

@ -30,7 +30,7 @@ GS::Effect::Effect() {
m_effect = nullptr;
}
GS::Effect::Effect(std::string file) {
GS::Effect::Effect(std::string file) {
obs_enter_graphics();
char* errorMessage = nullptr;
m_effect = gs_effect_create_from_file(file.c_str(), &errorMessage);
@ -92,6 +92,19 @@ GS::EffectParameter GS::Effect::GetParameter(size_t idx) {
return EffectParameter(param);
}
bool GS::Effect::HasParameter(std::string name) {
gs_eparam_t* param = gs_effect_get_param_by_name(m_effect, name.c_str());
return (param != nullptr);
}
bool GS::Effect::HasParameter(std::string name, EffectParameter::Type type) {
gs_eparam_t* param = gs_effect_get_param_by_name(m_effect, name.c_str());
if (param == nullptr)
return false;
GS::EffectParameter eprm(param);
return eprm.GetType() == type;
}
GS::EffectParameter GS::Effect::GetParameter(std::string name) {
gs_eparam_t* param = gs_effect_get_param_by_name(m_effect, name.c_str());
if (!param)
@ -170,8 +183,8 @@ void GS::EffectParameter::SetFloat2(vec2& v) {
void GS::EffectParameter::SetFloat2(float_t x, float_t y) {
if (GetType() != Type::Float2)
throw std::bad_cast();
float_t v[] = { x, y };
SetFloatArray(v, 2);
vec2 v = { x, y };
gs_effect_set_vec2(m_param, &v);
}
void GS::EffectParameter::SetFloat3(vec3& v) {
@ -183,8 +196,8 @@ void GS::EffectParameter::SetFloat3(vec3& v) {
void GS::EffectParameter::SetFloat3(float_t x, float_t y, float_t z) {
if (GetType() != Type::Float3)
throw std::bad_cast();
float_t v[] = { x, y, z };
SetFloatArray(v, 3);
vec3 v = { x, y, z };
gs_effect_set_vec3(m_param, &v);
}
void GS::EffectParameter::SetFloat4(vec4& v) {
@ -196,14 +209,14 @@ void GS::EffectParameter::SetFloat4(vec4& v) {
void GS::EffectParameter::SetFloat4(float_t x, float_t y, float_t z, float_t w) {
if (GetType() != Type::Float4)
throw std::bad_cast();
float_t v[] = { x, y, z, w };
SetFloatArray(v, 4);
vec4 v = { x, y, z, w };
gs_effect_set_vec4(m_param, &v);
}
void GS::EffectParameter::SetFloatArray(float_t v[], size_t sz) {
if ((GetType() != Type::Float) && (GetType() != Type::Float2) && (GetType() != Type::Float3) && (GetType() != Type::Float4))
throw std::bad_cast();
gs_effect_set_val(m_param, v, sz);
gs_effect_set_val(m_param, v, sizeof(float_t) * sz);
}
void GS::EffectParameter::SetInteger(int32_t x) {
@ -216,27 +229,27 @@ void GS::EffectParameter::SetInteger2(int32_t x, int32_t y) {
if (GetType() != Type::Integer2)
throw std::bad_cast();
int32_t v[] = { x, y };
gs_effect_set_val(m_param, v, 2);
gs_effect_set_val(m_param, v, sizeof(int) * 2);
}
void GS::EffectParameter::SetInteger3(int32_t x, int32_t y, int32_t z) {
if (GetType() != Type::Integer3)
throw std::bad_cast();
int32_t v[] = { x, y, z };
gs_effect_set_val(m_param, v, 3);
gs_effect_set_val(m_param, v, sizeof(int) * 3);
}
void GS::EffectParameter::SetInteger4(int32_t x, int32_t y, int32_t z, int32_t w) {
if (GetType() != Type::Integer4)
throw std::bad_cast();
int32_t v[] = { x, y, z, w };
gs_effect_set_val(m_param, v, 4);
gs_effect_set_val(m_param, v, sizeof(int) * 4);
}
void GS::EffectParameter::SetIntegerArray(int32_t v[], size_t sz) {
if ((GetType() != Type::Integer) && (GetType() != Type::Integer2) && (GetType() != Type::Integer3) && (GetType() != Type::Integer4))
throw std::bad_cast();
gs_effect_set_val(m_param, v, sz);
gs_effect_set_val(m_param, v, sizeof(int) * sz);
}
void GS::EffectParameter::SetMatrix(matrix4& v) {

2
source/gs-effect.h
View file

@ -99,6 +99,8 @@ namespace GS {
std::list<EffectParameter> GetParameters();
EffectParameter GetParameter(size_t idx);
EffectParameter GetParameter(std::string name);
bool HasParameter(std::string name);
bool HasParameter(std::string name, EffectParameter::Type type);
protected:
gs_effect_t* m_effect;