DWORD SpoutSenderSDK2::ProcessOpenGL(ProcessOpenGLStruct *pGL)
{
// We need a texture to process
if (pGL->numInputTextures < 1) return FF_FAIL;
if (pGL->inputTextures[0] == NULL) return FF_FAIL;
FFGLTextureStruct &InputTexture = *(pGL->inputTextures[0]);
// get the max s,t that correspond to the width, height
// of the used portion of the allocated texture space
FFGLTexCoords maxCoords = GetMaxGLTexCoords(InputTexture);
// Draw now whether a sender has initialized or not
DrawTexture(InputTexture.Handle, maxCoords);
// If there is no sender name yet, the sender cannot be created
if(!UserSenderName[0]) {
return FF_SUCCESS; // keep waiting for a name
}
// Otherwise create a sender if not initialized yet
else if(!bInitialized) {
// Update the sender name
strcpy_s(SenderName, 256, UserSenderName);
// Set global width and height so any change can be tested
m_Width = (unsigned int)InputTexture.Width;
m_Height = (unsigned int)InputTexture.Height;
// Create a new sender
bInitialized = sender.CreateSender(SenderName, m_Width, m_Height);
if(!bInitialized) {
sender.spout.SelectSenderPanel("Could not create sender\nTry another name");
UserSenderName[0] = 0; // wait for another name to be entered
}
return FF_SUCCESS; // give it one frame to initialize
}
// Has the texture size or user entered sender name changed
else if(m_Width != (unsigned int)InputTexture.Width
|| m_Height != (unsigned int)InputTexture.Height
|| strcmp(SenderName, UserSenderName) != 0 ) {
// Release existing sender
sender.ReleaseSender();
bInitialized = false;
return FF_SUCCESS; // return for initialization on the next frame
}
// Render the Freeframe texture into the shared texture
// Important - pass the FFGL host FBO to restore the binding because Spout uses a local fbo
// Default aspect = 1.0, default invert flag = true
if(bMemoryMode)
sender.SendTexture(InputTexture.Handle, GL_TEXTURE_2D, m_Width, m_Height);
else
sender.DrawToSharedTexture(InputTexture.Handle, GL_TEXTURE_2D, m_Width, m_Height, (float)maxCoords.s, (float)maxCoords.t, 1.0f, true, pGL->HostFBO);
return FF_SUCCESS;
}
DWORD FFGLTile::ProcessOpenGL(ProcessOpenGLStruct *pGL)
{
if (pGL->numInputTextures<1)
return FF_FAIL;
if (pGL->inputTextures[0]==NULL)
return FF_FAIL;
//activate our shader
m_shader.BindShader();
FFGLTextureStruct &Texture = *(pGL->inputTextures[0]);
//activate rendering with the input texture
//note that when using shaders, no glEnable(Texture.Target) is required
glBindTexture(GL_TEXTURE_2D, Texture.Handle);
//get the max s,t that correspond to the
//width,height of the used portion of the allocated texture space
FFGLTexCoords maxCoords = GetMaxGLTexCoords(Texture);
//assign the maxCoords value in the shader
//(glUniform2f assigns to a vec2)
m_extensions.glUniform2fARB(m_maxCoordsLocation, maxCoords.s, maxCoords.t);
//assign the tileAmount
m_extensions.glUniform2fARB(m_tileAmountLocation, 20.0*m_TileX, 20.0*m_TileY);
//draw the quad that will be painted by the shader/texture
glBegin(GL_QUADS);
//lower left
glTexCoord2f(0,0);
glVertex2f(-1,-1);
//upper left
glTexCoord2f(0, maxCoords.t);
glVertex2f(-1,1);
//upper right
glTexCoord2f(maxCoords.s, maxCoords.t);
glVertex2f(1,1);
//lower right
glTexCoord2f(maxCoords.s, 0);
glVertex2f(1,-1);
glEnd();
//unbind the shader and texture
glBindTexture(GL_TEXTURE_2D, 0);
m_shader.UnbindShader();
return FF_SUCCESS;
}
DWORD FFGLStatic::ProcessOpenGL(ProcessOpenGLStruct *pGL)
{
// If no calls to SetTime have been made, the host probably
// doesn't support Time, so we'll update m_time manually
if (!hastime)
{
update_time(&m_time, t0);
}
FFGLTextureStruct &Texture = *(pGL->inputTextures[0]);
FFGLTexCoords maxCoords = GetMaxGLTexCoords(Texture);
//activate our shader
m_shader.BindShader();
//get the max s,t that correspond to the
//width,height of the used portion of the allocated texture space
float foo = (m_time+float(rand()%100));
m_extensions.glUniform1fARB(m_timeLocation, foo);
m_extensions.glUniform1iARB(m_grayscaleLocation, m_mode>0.33f?true:false);
m_extensions.glUniform1iARB(m_twotoneLocation, m_mode>0.66f?true:false);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, Texture.Handle);
glBegin(GL_QUADS);
//lower left
glTexCoord2f(0, 0);
glVertex2f(-1.0, -1.0);
//upper left
glTexCoord2f(0, maxCoords.t);
glVertex2f(-1.0, 1.0);
//upper right
glTexCoord2f(maxCoords.s, maxCoords.t);
glVertex2f(1.0, 1.0);
//lower right
glTexCoord2f(maxCoords.s, 0);
glVertex2f(1.0, -1.0);
glEnd();
//unbind the shader
m_shader.UnbindShader();
return FF_SUCCESS;
}
DWORD FFGLLumaKey::ProcessOpenGL(ProcessOpenGLStruct *pGL)
{
if (pGL->numInputTextures<2)
return FF_FAIL;
if (pGL->inputTextures[0]==NULL)
return FF_FAIL;
if (pGL->inputTextures[1]==NULL)
return FF_FAIL;
//activate our shader
m_shader.BindShader();
FFGLTextureStruct &TextureDest = *(pGL->inputTextures[0]);
FFGLTextureStruct &TextureSrc = *(pGL->inputTextures[1]);
//activate rendering with the input texture
//note that when using shaders, no glEnable(Texture.Target) is required
m_extensions.glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDest.Handle);
m_extensions.glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureSrc.Handle);
//get the max s,t that correspond to the
//width,height of the used portion of the allocated texture space
FFGLTexCoords maxCoords = GetMaxGLTexCoords(TextureDest);
//assign the LumaKeyAmount
m_extensions.glUniform1fARB(m_LumaLocation, m_Luma);
//draw the quad that will be painted by the shader/texture
glBegin(GL_QUADS);
//lower left
glTexCoord2f(0,0);
glVertex2f(-1,-1);
//upper left
glTexCoord2f(0, maxCoords.t);
glVertex2f(-1,1);
//upper right
glTexCoord2f(maxCoords.s, maxCoords.t);
glVertex2f(1,1);
//lower right
glTexCoord2f(maxCoords.s, 0);
glVertex2f(1,-1);
glEnd();
//unbind the shader and texture
m_shader.UnbindShader();
//GL_TEXTURE1 is still active
//m_extensions.glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, 0);
m_extensions.glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
return FF_SUCCESS;
}
DWORD FFGLHeat::ProcessOpenGL(ProcessOpenGLStruct *pGL)
{
if (pGL->numInputTextures<1) return FF_FAIL;
if (pGL->inputTextures[0]==NULL) return FF_FAIL;
//activate our shader
m_shader.BindShader();
//bind the heat texture to texture unit 0
glBindTexture(GL_TEXTURE_1D, m_heatTextureId);
FFGLTextureStruct &Texture = *(pGL->inputTextures[0]);
//get the max s,t that correspond to the
//width,height of the used portion of the allocated texture space
FFGLTexCoords maxCoords = GetMaxGLTexCoords(Texture);
//assign the maxCoords value in the shader
//(glUniform2f assigns to a vec2)
m_extensions.glUniform2fARB(m_maxCoordsLocation, maxCoords.s, maxCoords.t);
//assign the heatAmount
m_extensions.glUniform1fARB(m_heatAmountLocation, 2.0*m_Heat);
//activate texture unit 1 and bind the input texture
m_extensions.glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, Texture.Handle);
//draw the quad that will be painted by the shader/textures
//note that we are sending texture coordinates to texture unit 1..
//the vertex shader and fragment shader refer to this when querying for
//texture coordinates of the inputTexture
glBegin(GL_QUADS);
//lower left
m_extensions.glMultiTexCoord2f(GL_TEXTURE1, 0,0);
glVertex2f(-1,-1);
//upper left
m_extensions.glMultiTexCoord2f(GL_TEXTURE1, 0, maxCoords.t);
glVertex2f(-1,1);
//upper right
m_extensions.glMultiTexCoord2f(GL_TEXTURE1, maxCoords.s, maxCoords.t);
glVertex2f(1,1);
//lower right
m_extensions.glMultiTexCoord2f(GL_TEXTURE1, maxCoords.s, 0);
glVertex2f(1,-1);
glEnd();
//unbind the input texture
glBindTexture(GL_TEXTURE_2D, 0);
//switch to texture unit 0 and unbind the 1D heat texture
m_extensions.glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_1D, 0);
//unbind the shader
m_shader.UnbindShader();
return FF_SUCCESS;
}
DWORD SpoutSenderSDK2::ProcessOpenGL(ProcessOpenGLStruct *pGL)
{
// We need a texture to process
if (pGL->numInputTextures < 1) return FF_FAIL;
if (pGL->inputTextures[0] == NULL) return FF_FAIL;
FFGLTextureStruct &InputTexture = *(pGL->inputTextures[0]);
// get the max s,t that correspond to the width, height
// of the used portion of the allocated texture space
FFGLTexCoords maxCoords = GetMaxGLTexCoords(InputTexture);
// Draw now whether a sender has initialized or not
DrawTexture(InputTexture.Handle, maxCoords);
// If there is no sender name yet, the sender cannot be created
if(!UserSenderName[0]) {
return FF_SUCCESS; // keep waiting for a name
}
// Otherwise create a sender if not initialized yet
else if(!bInitialized) {
// Update the sender name
strcpy_s(SenderName, 256, UserSenderName);
// Set global width and height so any change can be tested
m_Width = (unsigned int)InputTexture.Width;
m_Height = (unsigned int)InputTexture.Height;
// Create a new sender
bInitialized = sender.CreateSender(SenderName, m_Width, m_Height);
if(!bInitialized) {
char temp[256];
sprintf(temp,"Could not create sender\n%s\nTry another name", SenderName);
MessageBox(NULL, temp, "Spout", MB_OK);
UserSenderName[0] = 0; // wait for another name to be entered
}
return FF_SUCCESS; // give it one frame to initialize
}
// Has the texture size or user entered sender name changed
else if(m_Width != (unsigned int)InputTexture.Width
|| m_Height != (unsigned int)InputTexture.Height
|| strcmp(SenderName, UserSenderName) != 0 ) {
// Release existing sender
sender.ReleaseSender();
bInitialized = false;
return FF_SUCCESS; // return for initialization on the next frame
}
// Now we can send the FFGL texture
SaveOpenGLstate();
// Render the Freeframe texture into the shared texture
sender.DrawToSharedTexture(InputTexture.Handle, GL_TEXTURE_2D, m_Width, m_Height, (float)maxCoords.s, (float)maxCoords.t);
RestoreOpenGLstate();
// Important - Restore the FFGL host FBO binding because Spout uses a local fbo
if(pGL->HostFBO) glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, pGL->HostFBO);
return FF_SUCCESS;
}
DWORD FFGLVolumeRendering::ProcessOpenGL(ProcessOpenGLStruct *pGL)
{
if (pGL->numInputTextures<1)
return FF_FAIL;
if (pGL->inputTextures[0]==NULL)
return FF_FAIL;
FFGLTextureStruct &Texture = *(pGL->inputTextures[0]);
//enable texturemapping
glEnable(GL_TEXTURE_2D);
//bind the texture handle
glBindTexture(GL_TEXTURE_2D, Texture.Handle);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
//get the max s,t that correspond to the
//width,height of the used portion of the allocated texture space
FFGLTexCoords maxCoords = GetMaxGLTexCoords(Texture);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR);
glMatrixMode(GL_PROJECTION);
// Saving the projection matrix
glPushMatrix();
glLoadIdentity();
// Setting parallel projection
if (this->fIsPerspective == 0)
glOrtho(-1,1,-1,1,-2,2);
else
{
gluPerspective( 90.0*(this->fAngle + 0.5) , 1, 0.1, 100.0);
gluLookAt( 0, 0, 1.5, 0, 0, 0, 0, 1, 0 );
}
float xRotationAngle = (this->fXAngle - 0.5) * 180;
float yRotationAngle = (this->fYAngle - 0.5) * 180;
glRotatef(xRotationAngle, 1, 0, 0);
glRotatef(yRotationAngle, 0, 1, 0);
glScalef(this->fScaleValue, this->fScaleValue, this->fScaleValue);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
#ifndef USE_VBO
if (this->isGeometryRebuildNeeded)
{
this->isGeometryRebuildNeeded = false;
this->iList = glGenLists(1);
glNewList( this->iList, GL_COMPILE);
if (this->iPlanesCount > 1)
{
double dZStep = (double)this->fDistance/(double)(this->iPlanesCount - 1);
glBegin(GL_QUADS);
for (int i=0 ; i < this->iPlanesCount ; i++)
{
double ZCoord = -(this->fDistance/2) + dZStep * (double)i;
//lower left
glTexCoord2d(0.0, 0.0);
glVertex3f(-1, -1, ZCoord);
//upper left
glTexCoord2d(0.0, maxCoords.t);
glVertex3f(-1, 1, ZCoord);
//upper right
glTexCoord2d(maxCoords.s, maxCoords.t);
glVertex3f(1, 1, ZCoord);
//lower right
glTexCoord2d(maxCoords.s, 0.0);
glVertex3f(1, -1, ZCoord);
};
glEnd();
}
else
{// simple quad:
glBegin(GL_QUADS);
//lower left
glTexCoord2d(0.0, 0.0);
glVertex3f(-1, -1, 0);
//upper left
glTexCoord2d(0.0, maxCoords.t);
glVertex3f(-1, 1, 0);
//upper right
glTexCoord2d(maxCoords.s, maxCoords.t);
glVertex3f(1, 1, 0);
//lower right
glTexCoord2d(maxCoords.s, 0.0);
glVertex3f(1, -1, 0);
glEnd();
};
glEndList();
}
glCallList(this->iList);
#else
int vertextDataSize = 0;
int texcoordDataSize = 0;
if (this->isGeometryRebuildNeeded)
{
this->isGeometryRebuildNeeded = false;
this->CreateArrayData(maxCoords);
vertextDataSize = 4 * this->iPlanesCount * sizeof(GLVertexTriplet);
texcoordDataSize = 4 * this->iPlanesCount * sizeof(GLTexcoords);
m_extensions.glBindBufferARB(GL_ARRAY_BUFFER_ARB, vboId);
m_extensions.glBufferDataARB(GL_ARRAY_BUFFER_ARB, vertextDataSize + texcoordDataSize, 0, GL_STATIC_DRAW_ARB);
m_extensions.glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, vertextDataSize, this->VertexData); // copy vertices starting from 0 offest
m_extensions.glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, vertextDataSize, texcoordDataSize, this->TexcoordData); // copy texcoords after vertices;
m_extensions.glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
m_extensions.glBindBufferARB(GL_ARRAY_BUFFER_ARB, vboId);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
vertextDataSize = 4 * this->iPlanesCount * sizeof(GLVertexTriplet);
texcoordDataSize = 4 * this->iPlanesCount * sizeof(GLTexcoords);
glVertexPointer(3, GL_FLOAT, 0, 0);
glTexCoordPointer(2, GL_FLOAT, 0, (void*)(vertextDataSize));
glDrawArrays(GL_QUADS, 0, this->iPlanesCount*4);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
m_extensions.glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
#endif
glMatrixMode(GL_PROJECTION);
//Restoring projection matrix
glPopMatrix();
//unbind the texture
glBindTexture(GL_TEXTURE_2D, 0);
//disable texturemapping
glDisable(GL_TEXTURE_2D);
//disable blending
glDisable(GL_BLEND);
//restore default color
glColor4f(1.f,1.f,1.f,1.f);
return FF_SUCCESS;
}