/*
- * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
- *
*/
+// CLASS HEADER
#include <dali-toolkit/devel-api/shader-effects/dissolve-effect.h>
-namespace Dali
-{
+// EXTERNAL INCLUDES
+#include <dali/public-api/rendering/shader.h>
-namespace Toolkit
-{
-
-namespace
-{
+// INTERNAL INCLUDES
+#include <dali-toolkit/internal/graphics/builtin-shader-extern-gen.h>
-const std::string DISTORTION_PROPERTY_NAME( "uPercentage" );
-
-} // namespace
-
-DissolveEffect::DissolveEffect()
-{
-}
-
-//Call the Parent copy constructor to add reference to the implementation for this object
-DissolveEffect::DissolveEffect(ShaderEffect handle)
-:ShaderEffect(handle)
+namespace Dali
{
-}
-
-DissolveEffect::~DissolveEffect()
+namespace Toolkit
{
-}
-
-
-DissolveEffect DissolveEffect::New( bool useHighPrecision )
-{
- std::string prefixHighPrecision( "precision highp float;\n");
- std::string prefixMediumPrecision( "precision mediump float;\n" );
- std::string vertexShader(
- "uniform float uPercentage;\n"
- "uniform vec3 uSaddleParam;\n"
- "uniform vec2 uTranslation;\n"
- "uniform vec2 uRotation; \n"
- "uniform float uToNext;\n"
- "varying float vPercentage;\n"
- "void main()\n"
- "{\n"
- "gl_Position = uProjection * uModelView * vec4(aPosition, 1.0);\n"
- "vTexCoord = aTexCoord;\n"
- //Calculate the distortion value given the dissolve central line
- "vec2 texCoor = vec2( (aTexCoord.s - sTextureRect.s ) / (sTextureRect.p - sTextureRect.s), (aTexCoord.t- sTextureRect.t)/(sTextureRect.q - sTextureRect.t) ); \n"
- "vec2 value = texCoor + uTranslation; \n"
- "mat2 rotateMatrix = mat2( uRotation.s, uRotation.t, -uRotation.t, uRotation.s ); \n"
- "value = rotateMatrix * value; \n"
- "if(uToNext == 1.0) \n"
- " value.s = uSaddleParam[2] + value.s; \n"
- "float delay = value.t*value.t / uSaddleParam[0] - value.s*value.s/uSaddleParam[1];\n"
- "vPercentage = clamp( uPercentage*2.0 - 0.5*sin(delay*1.571) - 0.5, 0.0, 1.0 ); \n"
- "}\n");
- std::string fragmentShader(
- "varying float vPercentage;\n"
- "float rand(vec2 co) \n"
- "{\n"
- " return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453); \n"
- "}\n"
- "void main()\n"
- "{\n"
- //Calculate the randomness
- "float offsetS = rand( vTexCoord * vPercentage ) * (sTextureRect.p - sTextureRect.s) - vTexCoord.s + sTextureRect.s; \n"
- "float offsetT = rand( vec2(vTexCoord.t*vPercentage, vTexCoord.s * vPercentage) ) * (sTextureRect.q - sTextureRect.t) - vTexCoord.t + sTextureRect.t; \n"
- "vec2 lookupCoord = vTexCoord + vec2(offsetS, offsetT) * vPercentage; \n"
- "gl_FragColor = texture2D( sTexture, lookupCoord ) * uColor; \n"
- "gl_FragColor.a *= 1.0 - vPercentage; \n"
- "}" );
-
- // Create the implementation, temporarily owned on stack,
- Dali::ShaderEffect shaderEffectCustom;
- if( useHighPrecision )
- {
- shaderEffectCustom = Dali::ShaderEffect::New( prefixHighPrecision+vertexShader, prefixHighPrecision + fragmentShader,
- GeometryType( GEOMETRY_TYPE_IMAGE),
- ShaderEffect::GeometryHints( ShaderEffect::HINT_GRID | ShaderEffect::HINT_BLENDING ) );
- }
- else
- {
- shaderEffectCustom = Dali::ShaderEffect::New( prefixMediumPrecision+vertexShader, prefixMediumPrecision + fragmentShader,
- GeometryType( GEOMETRY_TYPE_IMAGE),
- ShaderEffect::GeometryHints( ShaderEffect::HINT_GRID | ShaderEffect::HINT_BLENDING ) );
- }
-
- /* Pass ownership to DissolveEffect through overloaded constructor, So that it now has access to the
- Dali::ShaderEffect implementation */
- Dali::Toolkit::DissolveEffect handle( shaderEffectCustom );
-
- handle.SetUniform( DISTORTION_PROPERTY_NAME, 0.0f );
- handle.SetProperty( ShaderEffect::Property::GRID_DENSITY, Dali::Property::Value(50.0f) );
-
- handle.SetCentralLine( Vector2(1.0f,0.5f), Vector2(-1.0f, 0.0f) );
-
- return handle;
-}
-
-void DissolveEffect::SetCentralLine( const Vector2& position, const Vector2& displacement )
+void DissolveEffectSetCentralLine(Actor& actor, const Vector2& position, const Vector2& displacement, float initialProgress)
{
// the line passes through 'position' and has the direction of 'displacement'
float coefA, coefB, coefC; //line equation: Ax+By+C=0;
coefA = displacement.y;
coefB = -displacement.x;
- coefC = -displacement.y*position.x + displacement.x*position.y;
+ coefC = -displacement.y * position.x + displacement.x * position.y;
- float inversedAABB = 1.f / (coefA*coefA+coefB*coefB);
+ float inversedAABB = 1.f / (coefA * coefA + coefB * coefB);
float inversedSqrtAABB = sqrtf(inversedAABB);
float saddleA;
Vector3 saddleParam; // [0]: a*a, [1]: b*b, [2] b
Vector2 translation;
Vector2 rotation;
- float toNext = -1.f;
- if( displacement.x > 0.f || (EqualsZero(displacement.x) && displacement.y > 0.f) )
+ float toNext = -1.f;
+ if(displacement.x > 0.f || (EqualsZero(displacement.x) && displacement.y > 0.f))
{
toNext = 1.f;
}
- if( (displacement.y * displacement.x < 0.0f) )
+ if((displacement.y * displacement.x < 0.0f))
{
//distance from (0,0) to the line
- float distanceTopLeft = fabsf(coefC) * inversedSqrtAABB;
+ float distanceTopLeft = fabsf(coefC) * inversedSqrtAABB;
//distance from (1, 1 ) to the line
- float distanceBottomRight = fabsf(coefA+coefB+coefC) * inversedSqrtAABB;
- saddleA = std::max( distanceTopLeft, distanceBottomRight );
+ float distanceBottomRight = fabsf(coefA + coefB + coefC) * inversedSqrtAABB;
+ saddleA = std::max(distanceTopLeft, distanceBottomRight);
//foot of a perpendicular: (1,0) to the line
- float footX1 = ( coefB*coefB - coefA*coefC) * inversedAABB;
- float footY1 = (-coefA*coefB - coefB*coefC) * inversedAABB;
+ float footX1 = (coefB * coefB - coefA * coefC) * inversedAABB;
+ float footY1 = (-coefA * coefB - coefB * coefC) * inversedAABB;
//foot of a perpendicular: (0,1) to the line
- float footX2 = (-coefA*coefB - coefA*coefC) * inversedAABB;
- float footY2 = ( coefA*coefA - coefB*coefC) * inversedAABB;
- saddleParam[1] = (footX1-footX2)*(footX1-footX2) + (footY1-footY2)*(footY1-footY2);
- translation = Vector2(-footX2,-footY2);
+ float footX2 = (-coefA * coefB - coefA * coefC) * inversedAABB;
+ float footY2 = (coefA * coefA - coefB * coefC) * inversedAABB;
+ saddleParam[1] = (footX1 - footX2) * (footX1 - footX2) + (footY1 - footY2) * (footY1 - footY2);
+ translation = Vector2(-footX2, -footY2);
}
else
{
//distance from(1,0) to the line
- float distanceTopRight = fabsf(coefA+coefC) * inversedSqrtAABB;
+ float distanceTopRight = fabsf(coefA + coefC) * inversedSqrtAABB;
//distance from(0,1) to the line
- float distanceBottomLeft = fabsf(coefB+coefC) * inversedSqrtAABB;
- saddleA = std::max( distanceTopRight, distanceBottomLeft );
+ float distanceBottomLeft = fabsf(coefB + coefC) * inversedSqrtAABB;
+ saddleA = std::max(distanceTopRight, distanceBottomLeft);
//foot of a perpendicular: (0,0) to the line
- float footX3 = (-coefA*coefC) * inversedAABB;
- float footY3 = (-coefB*coefC) * inversedAABB;
+ float footX3 = (-coefA * coefC) * inversedAABB;
+ float footY3 = (-coefB * coefC) * inversedAABB;
//foot of a perpendicular: (1.0,1.0) to the line
- float footX4 = ( coefB*coefB - coefA*coefB - coefA*coefC) * inversedAABB;
- float footY4 = (-coefA*coefB + coefA*coefA- coefB*coefC) * inversedAABB;
- saddleParam[1] = (footX3-footX4)*(footX3-footX4) + (footY3-footY4)*(footY3-footY4);
- translation = Vector2(-footX3, -footY3);
+ float footX4 = (coefB * coefB - coefA * coefB - coefA * coefC) * inversedAABB;
+ float footY4 = (-coefA * coefB + coefA * coefA - coefB * coefC) * inversedAABB;
+ saddleParam[1] = (footX3 - footX4) * (footX3 - footX4) + (footY3 - footY4) * (footY3 - footY4);
+ translation = Vector2(-footX3, -footY3);
}
saddleParam[2] = sqrtf(saddleParam[1]);
- saddleParam[0] = saddleA*saddleA;
- rotation = Vector2(-displacement.x, displacement.y);
+ saddleParam[0] = saddleA * saddleA;
+ rotation = Vector2(-displacement.x, displacement.y);
rotation.Normalize();
- SetUniform( "uSaddleParam", saddleParam );
- SetUniform( "uTranslation", translation );
- SetUniform( "uRotation", rotation );
- SetUniform( "uToNext", toNext );
-
+ actor.RegisterProperty("uSaddleParam", saddleParam);
+ actor.RegisterProperty("uTranslation", translation);
+ actor.RegisterProperty("uRotation", rotation);
+ actor.RegisterProperty("uToNext", toNext);
+ actor.RegisterProperty("uPercentage", initialProgress, Dali::Property::ANIMATABLE);
}
-void DissolveEffect::SetDistortion( float distortion )
+Property::Map CreateDissolveEffect(bool useHighPrecision)
{
- SetUniform( DISTORTION_PROPERTY_NAME, distortion );
-}
+ const char* prefixHighPrecision("precision highp float;\n");
+ const char* prefixMediumPrecision("precision mediump float;\n");
-const std::string& DissolveEffect::GetDistortionPropertyName() const
-{
- return DISTORTION_PROPERTY_NAME;
+ const char* vertexShader = SHADER_DISSOLVE_EFFECT_VERT.data();
+ const char* fragmentShader = SHADER_DISSOLVE_EFFECT_FRAG.data();
+
+ Property::Map map;
+
+ Property::Map customShader;
+
+ std::string vertexShaderString;
+ std::string fragmentShaderString;
+ if(useHighPrecision)
+ {
+ vertexShaderString.reserve(strlen(prefixHighPrecision) + strlen(vertexShader));
+ vertexShaderString.append(prefixHighPrecision);
+
+ fragmentShaderString.reserve(strlen(prefixHighPrecision) + strlen(fragmentShader));
+ fragmentShaderString.append(prefixHighPrecision);
+ }
+ else
+ {
+ vertexShaderString.reserve(strlen(prefixMediumPrecision) + strlen(vertexShader));
+ vertexShaderString.append(prefixMediumPrecision);
+
+ fragmentShaderString.reserve(strlen(prefixMediumPrecision) + strlen(fragmentShader));
+ fragmentShaderString.append(prefixMediumPrecision);
+ }
+
+ vertexShaderString.append(vertexShader);
+ fragmentShaderString.append(fragmentShader);
+
+ customShader[Visual::Shader::Property::VERTEX_SHADER] = vertexShaderString;
+ customShader[Visual::Shader::Property::FRAGMENT_SHADER] = fragmentShaderString;
+
+ customShader[Visual::Shader::Property::SUBDIVIDE_GRID_X] = 20;
+ customShader[Visual::Shader::Property::SUBDIVIDE_GRID_Y] = 20;
+
+ customShader[Visual::Shader::Property::HINTS] = Shader::Hint::OUTPUT_IS_TRANSPARENT;
+
+ map[Toolkit::Visual::Property::SHADER] = customShader;
+ return map;
}
} // namespace Toolkit
projects / platform / core / uifw / dali-toolkit.git / blobdiff