void RenderTarget::resetGLStates()
{
if (activate(true))
{
// Make sure that GLEW is initialized
priv::ensureGlewInit();
// Define the default OpenGL states
glCheck(glDisable(GL_CULL_FACE));
glCheck(glDisable(GL_LIGHTING));
glCheck(glDisable(GL_DEPTH_TEST));
glCheck(glDisable(GL_ALPHA_TEST));
glCheck(glEnable(GL_TEXTURE_2D));
glCheck(glEnable(GL_BLEND));
glCheck(glMatrixMode(GL_MODELVIEW));
glCheck(glEnableClientState(GL_VERTEX_ARRAY));
glCheck(glEnableClientState(GL_COLOR_ARRAY));
glCheck(glEnableClientState(GL_TEXTURE_COORD_ARRAY));
m_cache.glStatesSet = true;
// Apply the default SFML states
applyBlendMode(BlendAlpha);
applyTransform(Transform::Identity);
applyTexture(NULL);
if (Shader::isAvailable())
applyShader(NULL);
m_cache.useVertexCache = false;
// Set the default view
setView(getView());
}
}
void BloomEffect::add(const sf::RenderTexture& source, const sf::RenderTexture& bloom, sf::RenderTarget& output)
{
sf::Shader& adder = mShaders.get(Shaders::AddPass);
adder.setParameter("source", source.getTexture());
adder.setParameter("bloom", bloom.getTexture());
applyShader(adder, output);
}
void BloomEffect::filterBright(const sf::RenderTexture& input, sf::RenderTexture& output)
{
sf::Shader& brightness = mShaders.get(Shaders::BrightnessPass);
brightness.setParameter("source", input.getTexture());
applyShader(brightness, output);
output.display();
}
void PostBloom::add(const sf::RenderTexture& src, const sf::RenderTexture& bloom, sf::RenderTarget& dst)
{
auto& shader = m_shaderResource.get(Shader::Type::PostAdditiveBlend);
shader.setParameter("u_sourceTexture", src.getTexture());
shader.setParameter("u_bloomTexture", bloom.getTexture());
applyShader(shader, dst);
}
void BloomEffect::blur(const sf::RenderTexture& input, sf::RenderTexture& output, sf::Vector2f offsetFactor)
{
sf::Shader& gaussianBlur = mShaders.get(Shaders::GaussianBlurPass);
gaussianBlur.setParameter("source", input.getTexture());
gaussianBlur.setParameter("offsetFactor", offsetFactor);
applyShader(gaussianBlur, output);
output.display();
}
void BloomEffect::downsample(const sf::RenderTexture& input, sf::RenderTexture& output)
{
sf::Shader& downSampler = mShaders.get(Shaders::DownSamplePass);
downSampler.setParameter("source", input.getTexture());
downSampler.setParameter("sourceSize", sf::Vector2f(input.getSize()));
applyShader(downSampler, output);
output.display();
}
void PostBloom::filterBright(const sf::RenderTexture& src, sf::RenderTexture& dst)
{
auto& shader = m_shaderResource.get(Shader::Type::PostBrightnessExtract);
shader.setParameter("u_sourceTexture", src.getTexture());
applyShader(shader, dst);
dst.display();
}
void PostBloom::blur(const sf::RenderTexture& src, sf::RenderTexture& dst, const sf::Vector2f& offset)
{
auto& shader = m_shaderResource.get(Shader::Type::PostGaussianBlur);
shader.setParameter("u_sourceTexture", src.getTexture());
shader.setParameter("u_offset", offset);
applyShader(shader, dst);
dst.display();
}
void PostBloom::downSample(const sf::RenderTexture& src, sf::RenderTexture& dst)
{
auto& shader = m_shaderResource.get(Shader::Type::PostDownSample);
shader.setParameter("u_sourceTexture", src.getTexture());
shader.setParameter("u_sourceSize", sf::Vector2f(src.getSize()));
applyShader(shader, dst);
dst.display();
}
//public
void PostChromeAb::apply(const sf::RenderTexture& src, sf::RenderTarget& dst)
{
float windowRatio = static_cast<float>(dst.getSize().y) / static_cast<float>(src.getSize().y);
auto& shader = m_shaderResource.get(Shader::Type::PostChromeAb);
shader.setParameter("u_sourceTexture", src.getTexture());
shader.setParameter("u_time", accumulatedTime * (10.f * windowRatio));
shader.setParameter("u_lineCount", windowRatio * scanlineCount);
applyShader(shader, dst);
}
void RenderTarget::resetGLStates()
{
// Check here to make sure a context change does not happen after activate(true)
bool shaderAvailable = Shader::isAvailable();
if (setActive(true))
{
// Make sure that extensions are initialized
priv::ensureExtensionsInit();
// Make sure that the texture unit which is active is the number 0
if (GLEXT_multitexture)
{
glCheck(GLEXT_glClientActiveTexture(GLEXT_GL_TEXTURE0));
glCheck(GLEXT_glActiveTexture(GLEXT_GL_TEXTURE0));
}
// Define the default OpenGL states
glCheck(glDisable(GL_CULL_FACE));
glCheck(glDisable(GL_LIGHTING));
glCheck(glDisable(GL_DEPTH_TEST));
glCheck(glDisable(GL_ALPHA_TEST));
glCheck(glEnable(GL_TEXTURE_2D));
glCheck(glEnable(GL_BLEND));
glCheck(glMatrixMode(GL_MODELVIEW));
glCheck(glEnableClientState(GL_VERTEX_ARRAY));
glCheck(glEnableClientState(GL_COLOR_ARRAY));
glCheck(glEnableClientState(GL_TEXTURE_COORD_ARRAY));
m_cache.glStatesSet = true;
// Apply the default SFML states
applyBlendMode(BlendAlpha);
applyTransform(Transform::Identity);
applyTexture(NULL);
if (shaderAvailable)
applyShader(NULL);
m_cache.texCoordsArrayEnabled = true;
m_cache.useVertexCache = false;
// Set the default view
setView(getView());
}
}
void RenderTarget::draw(const Mesh& mesh, const RenderStates& states)
{
// Apply the shader
if (states.shader) {
applyShader(*states.shader, states.transform);
if (states.material) {
if (states.material->mCacheId != mCache.lastMaterialId)
applyMaterial(*states.shader, states.material);
}
}
// Apply the texture
if (states.texture) {
if (states.texture->mCacheId != mCache.lastTextureId)
applyTexture(states.texture);
}
mesh.draw();
}
void RenderTarget::draw(const Vertex* vertices, unsigned int vertexCount,
PrimitiveType type, const RenderStates& states)
{
// Nothing to draw?
if (!vertices || (vertexCount == 0))
return;
if (activate(true))
{
// First set the persistent OpenGL states if it's the very first call
if (!m_cache.glStatesSet)
resetGLStates();
// Check if the vertex count is low enough so that we can pre-transform them
bool useVertexCache = (vertexCount <= StatesCache::VertexCacheSize);
if (useVertexCache)
{
// Pre-transform the vertices and store them into the vertex cache
for (unsigned int i = 0; i < vertexCount; ++i)
{
Vertex& vertex = m_cache.vertexCache[i];
vertex.position = states.transform * vertices[i].position;
vertex.color = vertices[i].color;
vertex.texCoords = vertices[i].texCoords;
}
// Since vertices are transformed, we must use an identity transform to render them
if (!m_cache.useVertexCache)
applyTransform(Transform::Identity);
}
else
{
applyTransform(states.transform);
}
// Apply the view
if (m_cache.viewChanged)
applyCurrentView();
// Apply the blend mode
if (states.blendMode != m_cache.lastBlendMode)
applyBlendMode(states.blendMode);
// Apply the texture
Uint64 textureId = states.texture ? states.texture->m_cacheId : 0;
if (textureId != m_cache.lastTextureId)
applyTexture(states.texture);
// Apply the shader
if (states.shader)
applyShader(states.shader);
// If we pre-transform the vertices, we must use our internal vertex cache
if (useVertexCache)
{
// ... and if we already used it previously, we don't need to set the pointers again
if (!m_cache.useVertexCache)
vertices = m_cache.vertexCache;
else
vertices = NULL;
}
// Setup the pointers to the vertices' components
if (vertices)
{
const char* data = reinterpret_cast<const char*>(vertices);
glCheck(glVertexPointer(2, GL_FLOAT, sizeof(Vertex), data + 0));
glCheck(glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Vertex), data + 8));
glCheck(glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), data + 12));
}
// Find the OpenGL primitive type
static const GLenum modes[] = {GL_POINTS, GL_LINES, GL_LINE_STRIP, GL_TRIANGLES,
GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_QUADS
};
GLenum mode = modes[type];
// Draw the primitives
glCheck(glDrawArrays(mode, 0, vertexCount));
// Unbind the shader, if any
if (states.shader)
applyShader(NULL);
// Update the cache
m_cache.useVertexCache = useVertexCache;
}
}
void RenderTarget::draw(const Vertex* vertices, std::size_t vertexCount,
PrimitiveType type, const RenderStates& states)
{
// Nothing to draw?
if (!vertices || (vertexCount == 0))
return;
// GL_QUADS is unavailable on OpenGL ES
#ifdef SFML_OPENGL_ES
if (type == Quads)
{
err() << "sf::Quads primitive type is not supported on OpenGL ES platforms, drawing skipped" << std::endl;
return;
}
#define GL_QUADS 0
#endif
if (setActive(true))
{
// First set the persistent OpenGL states if it's the very first call
if (!m_cache.glStatesSet)
resetGLStates();
// Check if the vertex count is low enough so that we can pre-transform them
bool useVertexCache = (vertexCount <= StatesCache::VertexCacheSize);
if (useVertexCache)
{
// Pre-transform the vertices and store them into the vertex cache
for (std::size_t i = 0; i < vertexCount; ++i)
{
Vertex& vertex = m_cache.vertexCache[i];
vertex.position = states.transform * vertices[i].position;
vertex.color = vertices[i].color;
vertex.texCoords = vertices[i].texCoords;
}
// Since vertices are transformed, we must use an identity transform to render them
if (!m_cache.useVertexCache)
applyTransform(Transform::Identity);
}
else
{
applyTransform(states.transform);
}
// Apply the view
if (m_cache.viewChanged)
applyCurrentView();
// Apply the blend mode
if (states.blendMode != m_cache.lastBlendMode)
applyBlendMode(states.blendMode);
// Apply the texture
Uint64 textureId = states.texture ? states.texture->m_cacheId : 0;
if (textureId != m_cache.lastTextureId)
applyTexture(states.texture);
// Apply the shader
if (states.shader)
applyShader(states.shader);
// If we pre-transform the vertices, we must use our internal vertex cache
if (useVertexCache)
{
// ... and if we already used it previously, we don't need to set the pointers again
if (!m_cache.useVertexCache)
vertices = m_cache.vertexCache;
else
vertices = NULL;
}
// Check if texture coordinates array is needed, and update client state accordingly
bool enableTexCoordsArray = (states.texture || states.shader);
if (enableTexCoordsArray != m_cache.texCoordsArrayEnabled)
{
if (enableTexCoordsArray)
glCheck(glEnableClientState(GL_TEXTURE_COORD_ARRAY));
else
glCheck(glDisableClientState(GL_TEXTURE_COORD_ARRAY));
m_cache.texCoordsArrayEnabled = enableTexCoordsArray;
}
// Setup the pointers to the vertices' components
if (vertices)
{
const char* data = reinterpret_cast<const char*>(vertices);
glCheck(glVertexPointer(2, GL_FLOAT, sizeof(Vertex), data + 0));
glCheck(glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Vertex), data + 8));
if (enableTexCoordsArray)
glCheck(glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), data + 12));
}
// Find the OpenGL primitive type
static const GLenum modes[] = {GL_POINTS, GL_LINES, GL_LINE_STRIP, GL_TRIANGLES,
GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_QUADS};
GLenum mode = modes[type];
// Draw the primitives
glCheck(glDrawArrays(mode, 0, vertexCount));
// Unbind the shader, if any
if (states.shader)
applyShader(NULL);
// If the texture we used to draw belonged to a RenderTexture, then forcibly unbind that texture.
// This prevents a bug where some drivers do not clear RenderTextures properly.
if (states.texture && states.texture->m_fboAttachment)
applyTexture(NULL);
// Update the cache
m_cache.useVertexCache = useVertexCache;
}
}
void ShadowsDemo::onDraw() {
App::onDraw();
const auto device = graphicsDevice();
device->setClearColor(0.0f, 0.0f, 0.0f, 0.0f);
device->clear(ciri::ClearFlags::Color | ciri::ClearFlags::Depth);
device->setRasterizerState(_rasterState);
device->restoreDefaultBlendState();
if( _spotlightShader->isValid() && _directionalShader->isValid() ) {
const cc::Mat4f& cameraViewProj = _camera.getProj() * _camera.getView();
bool firstLight = true;
Light::Type boundLightType = Light::Type::Invalid;
for( auto& light : _lights ) {
// compute light matrices
//const cc::Mat4f& lightView = light.view();
//const cc::Mat4f& lightProj = light.proj();//cc::math::perspectiveRH(45.0f, 1.0f, 0.1f, light.range());//light.proj();
//const cc::Mat4f lightViewProj = lightProj * lightView;
if( light.type() == Light::Type::Directional ) {
//light.computeViewProjFromFrustum(BoundingFrustum(cameraViewProj));
light.computeViewProjFromFrustum(BoundingFrustum(_camera.getFov(), _camera.getAspect(), _camera.getNearPlane(), _camera.getFarPlane(), _camera.getPosition(), _camera.getFpsFront(), _camera.getUp()));
//light.computeViewProjOrtho(_camera.getView(), _camera.getFov(), _camera.getAspect(), _camera.getNearPlane(), _camera.getFarPlane());
}
const cc::Mat4f lightViewProj = light.proj() * light.view();
if( light.castShadows() ) {
device->setDepthStencilState(device->getDefaultDepthStencilDefault());
// set and clear render target
ciri::IRenderTarget2D* depthTarget = _shadowTarget.get();
device->setRenderTargets(&depthTarget, 1);
device->setClearColor(0.0f, 0.0f, 0.0f, 0.0f);
device->clear(ciri::ClearFlags::Color | ciri::ClearFlags::Depth);
// apply depth shader
device->applyShader(_depthShader);
// set viewport to depth size
device->setViewport(ciri::Viewport(0, 0, _shadowTarget->getDepth()->getWidth(), _shadowTarget->getDepth()->getHeight()));
// render all models
for( auto& mdl : _models ) {
_depthConstants.xform = lightViewProj * mdl->getXform().getWorld();
_depthConstantsBuffer->setData(sizeof(DepthConstants), &_depthConstants);
device->setVertexBuffer(mdl->getVertexBuffer());
if( mdl->getIndexBuffer() != nullptr ) {
device->setIndexBuffer(mdl->getIndexBuffer());
device->drawIndexed(ciri::PrimitiveTopology::TriangleList, mdl->getIndexBuffer()->getIndexCount());
} else {
device->drawArrays(ciri::PrimitiveTopology::TriangleList, mdl->getVertexBuffer()->getVertexCount(), 0);
}
}
// reser viewport to screen
device->setViewport(ciri::Viewport(0, 0, window()->getWidth(), window()->getHeight()));
// restore default render targets
device->restoreDefaultRenderTargets();
}
switch( light.type() ) {
case Light::Type::Directional: {
if( boundLightType != Light::Type::Directional || light.castShadows() ) {
boundLightType = Light::Type::Directional;
device->applyShader(_directionalShader);
device->setTexture2D(0, _shadowTarget->getDepth(), ciri::ShaderStage::Pixel);
device->setSamplerState(0, _shadowSampler, ciri::ShaderStage::Pixel);
}
_directionalConstants.LightDirection = light.direction();
_directionalConstants.LightColor = light.diffuseColor();
_directionalConstants.LightIntensity = light.diffuseIntensity();
_directionalConstants.campos = _camera.getPosition();
_directionalConstants.CastShadows = light.castShadows();
_directionalConstants.lightViewProj = lightViewProj;
for( auto& mdl : _models ) {
if( !mdl->isValid() ) {
continue;
}
_directionalConstants.world = mdl->getXform().getWorld();
_directionalConstants.xform = cameraViewProj * _directionalConstants.world;
_directionalConstantsBuffer->setData(sizeof(DirectionalConstants), &_directionalConstants);
device->setVertexBuffer(mdl->getVertexBuffer());
if( mdl->getIndexBuffer() != nullptr ) {
device->setIndexBuffer(mdl->getIndexBuffer());
device->drawIndexed(ciri::PrimitiveTopology::TriangleList, mdl->getIndexBuffer()->getIndexCount());
} else {
device->drawArrays(ciri::PrimitiveTopology::TriangleList, mdl->getVertexBuffer()->getVertexCount(), 0);
}
}
break;
}
case Light::Type::Spot: {
if( boundLightType != Light::Type::Spot || light.castShadows() ) {
boundLightType = Light::Type::Spot;
device->applyShader(_spotlightShader);
device->setTexture2D(0, _shadowTarget->getDepth(), ciri::ShaderStage::Pixel);
device->setSamplerState(0, _shadowSampler, ciri::ShaderStage::Pixel);
}
_spotlightConstants.LightPosition = light.position();
_spotlightConstants.LightDirection = light.direction();
_spotlightConstants.LightColor = light.diffuseColor();
_spotlightConstants.LightCosInner = light.cosConeInnerAngle(true);
_spotlightConstants.LightCosOuter = light.cosConeOuterAngle(true);
_spotlightConstants.LightIntensity = light.diffuseIntensity();
_spotlightConstants.LightRange = light.range();
_spotlightConstants.CastShadows = light.castShadows();
_spotlightConstants.lightViewProj = lightViewProj;
for( auto& mdl : _models ) {
_spotlightConstants.world = mdl->getXform().getWorld();
_spotlightConstants.xform = cameraViewProj * _spotlightConstants.world;
_spotlightConstantsBuffer->setData(sizeof(SpotlightConstants), &_spotlightConstants);
device->setVertexBuffer(mdl->getVertexBuffer());
if( mdl->getIndexBuffer() != nullptr ) {
device->setIndexBuffer(mdl->getIndexBuffer());
device->drawIndexed(ciri::PrimitiveTopology::TriangleList, mdl->getIndexBuffer()->getIndexCount());
} else {
device->drawArrays(ciri::PrimitiveTopology::TriangleList, mdl->getVertexBuffer()->getVertexCount(), 0);
}
}
break;
}
}
if( firstLight ) {
firstLight = false;
device->setBlendState(_additiveBlendState);
}
}
}
device->present();
}
void RenderTarget::draw(const Vertex* vertices, unsigned int vertexCount,
PrimitiveType type, const RenderStates& states)
{
// Nothing to draw?
if (!vertices || (vertexCount == 0))
return;
// Vertices allocated in the stack (common) can't be converted to physical address
#ifndef EMULATION
if (osConvertVirtToPhys((u32)vertices) == 0)
{
err() << "RenderTarget::draw() called with vertex array in inaccessible memory space." << std::endl;
return;
}
#endif
// GL_QUADS is unavailable on OpenGL ES
if (type == Quads)
{
err() << "cpp3ds::Quads primitive type is not supported on OpenGL ES platforms, drawing skipped" << std::endl;
return;
}
#define GL_QUADS 0
if (activate(true))
{
// First set the persistent OpenGL states if it's the very first call
if (!m_cache.glStatesSet)
resetGLStates();
// Check if the vertex count is low enough so that we can pre-transform them
bool useVertexCache = (vertexCount <= StatesCache::VertexCacheSize);
if (useVertexCache)
{
// Pre-transform the vertices and store them into the vertex cache
for (unsigned int i = 0; i < vertexCount; ++i)
{
Vertex& vertex = m_cache.vertexCache[i];
vertex.position = states.transform * vertices[i].position;
vertex.color = vertices[i].color;
vertex.texCoords = vertices[i].texCoords;
}
// Since vertices are transformed, we must use an identity transform to render them
if (!m_cache.useVertexCache)
applyTransform(Transform::Identity);
}
else
{
applyTransform(states.transform);
}
// Apply the view
if (m_cache.viewChanged)
applyCurrentView();
// Apply the blend mode
if (states.blendMode != m_cache.lastBlendMode)
applyBlendMode(states.blendMode);
// Apply the texture
Uint64 textureId = states.texture ? states.texture->m_cacheId : 0;
if (textureId != m_cache.lastTextureId)
applyTexture(states.texture);
// Apply the shader
if (states.shader)
applyShader(states.shader);
// If we pre-transform the vertices, we must use our internal vertex cache
if (useVertexCache)
{
// ... and if we already used it previously, we don't need to set the pointers again
if (!m_cache.useVertexCache)
vertices = m_cache.vertexCache;
else
vertices = NULL;
}
// Setup the pointers to the vertices' components
if (vertices)
{
#ifdef EMULATION
const char* data = reinterpret_cast<const char*>(vertices);
glCheck(glVertexPointer(2, GL_FLOAT, sizeof(Vertex), data + 0));
glCheck(glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Vertex), data + 8)); // 8 = sizeof(Vector2f)
glCheck(glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), data + 12)); // 12 = 8 + sizeof(Color)
#else
// Temorary workaround until gl3ds can get VAO gl*Pointer functions working
u32 bufferOffsets[] = {0};
u64 bufferPermutations[] = {0x210};
u8 bufferAttribCounts[] = {3};
GPU_SetAttributeBuffers(
3, // number of attributes
(u32*)osConvertVirtToPhys((u32)vertices),
GPU_ATTRIBFMT(0, 2, GPU_FLOAT) | GPU_ATTRIBFMT(1, 4, GPU_UNSIGNED_BYTE) | GPU_ATTRIBFMT(2, 2, GPU_FLOAT),
0xFF8, //0b1100
0x210,
1, //number of buffers
bufferOffsets,
bufferPermutations,
bufferAttribCounts // number of attributes for each buffer
);
#endif
}
// Find the OpenGL primitive type
static const GLenum modes[] = {GL_POINTS, GL_LINES, GL_LINE_STRIP, GL_TRIANGLES,
GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_QUADS
};
GLenum mode = modes[type];
// Draw the primitives
glCheck(glDrawArrays(mode, 0, vertexCount));
// Unbind the shader, if any
if (states.shader)
applyShader(NULL);
// Update the cache
m_cache.useVertexCache = useVertexCache;
}
}
void FECustomFilter::platformApplySoftware()
{
if (!applyShader())
clearShaderResult();
}
