bool CShaderMngr::UseShader(const char *strName)
{
if (strName == nullptr)
{
glUseProgramObjectARB(0);
return true;
}
shaderData *pData = GetShaderData(strName);
if (pData)
{
glUseProgramObjectARB(pData->nProgID);
return true;
}
return false;
}
//--------------------------------------------------------------------------------------
// Metodo para eliminar los programas shaders que estabamos usando.
//--------------------------------------------------------------------------------------
void CShadersManager::Release (void)
{
if(!this->IsShadersAvailable()) return;
glUseProgramObjectARB(0);
this->Programs[0].Release();
this->Programs[1].Release();
this->Programs[2].Release();
}
void Shader::setParameter(const std::string& name, float x, float y, float z, float w)
{
if (m_shaderProgram)
{
ensureGlContext();
// Enable program
GLhandleARB program = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
glCheck(glUseProgramObjectARB(m_shaderProgram));
// Get parameter location and assign it new values
GLint location = getParamLocation(name);
if (location != -1)
glCheck(glUniform4fARB(location, x, y, z, w));
// Disable program
glCheck(glUseProgramObjectARB(program));
}
}
void GRAPHICS_GL2::Deinit()
{
if (GLEW_ARB_shading_language_100)
{
if (!shadermap.empty())
glUseProgramObjectARB(0);
shadermap.clear();
}
}
void C4ShaderCall::Start()
{
assert(!fStarted);
assert(pShader->hProg != 0); // Shader must be initialized
// Activate shader
glUseProgramObjectARB(pShader->hProg);
fStarted = true;
}
bool RawVolumeModelRenderer::render( const eq::Range& range,
const eq::Matrix4d& modelviewM,
const eq::Matrix4f& invRotationM,
const eq::Vector4f& taintColor,
const int normalsQuality )
{
VolumeInfo volumeInfo;
if( !_rawModel.getVolumeInfo( volumeInfo, range ))
{
LBERROR << "Can't get volume data" << std::endl;
return false;
}
glScalef( volumeInfo.volScaling.W,
volumeInfo.volScaling.H,
volumeInfo.volScaling.D );
// Enable shaders
glUseProgramObjectARB( _shaders.getProgram( ));
// Calculate and put necessary data to shaders
const uint32_t resolution = _rawModel.getResolution();
const double sliceDistance = 3.6 / ( resolution * _precision );
_putVolumeDataToShader( volumeInfo, float( sliceDistance ),
invRotationM, taintColor, normalsQuality );
_sliceClipper.updatePerFrameInfo( modelviewM, sliceDistance, range );
//Render slices
glEnable( GL_BLEND );
glBlendFuncSeparateEXT( GL_ONE, GL_SRC_ALPHA, GL_ZERO, GL_SRC_ALPHA );
renderSlices( _sliceClipper );
glDisable( GL_BLEND );
// Disable shader
glUseProgramObjectARB( 0 );
return true;
}
void Shader::SetParameter(const std::string& name, float x, float y, float z, float w)
{
if (myShaderProgram)
{
// Enable program
GLhandleARB program = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
GLCheck(glUseProgramObjectARB(myShaderProgram));
// Get parameter location and assign it new values
GLint location = glGetUniformLocationARB(myShaderProgram, name.c_str());
if (location != -1)
GLCheck(glUniform4fARB(location, x, y, z, w));
else
Err() << "Parameter \"" << name << "\" not found in shader" << std::endl;
// Disable program
GLCheck(glUseProgramObjectARB(program));
}
}
void Shader::setParameter(const std::string& name, math::Matrix4f matrix)
{
if (m_shaderProgram)
{
ensureGlContext();
// Enable program
GLhandleARB program = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
glCheck(glUseProgramObjectARB(m_shaderProgram));
// Get parameter location and assign it new values
GLint location = getParamLocation(name);
if (location != -1) {
std::array<float, 16> glmatrix = matrix.toGlMatrix();
glCheck(glUniformMatrix4fvARB(location, 1, GL_FALSE, glmatrix.data()));
}
// Disable program
glCheck(glUseProgramObjectARB(program));
}
}
void C4ShaderCall::Finish()
{
// Remove shader
if (fStarted) {
glUseProgramObjectARB(0);
}
iUnits = 0;
fStarted = false;
}
void Shader::setParameter(const std::string& name, const sf::Transform& transform)
{
if (m_shaderProgram)
{
ensureGlContext();
// Enable program
GLhandleARB program = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
glCheck(glUseProgramObjectARB(m_shaderProgram));
// Get parameter location and assign it new values
GLint location = getParamLocation(name);
if (location != -1)
glCheck(glUniformMatrix4fvARB(location, 1, GL_FALSE, transform.getMatrix()));
// Disable program
glCheck(glUseProgramObjectARB(program));
}
}
void starBurst::draw(float lerp, HyperspaceSaverSettings *inSettings){
drawStars(inSettings);
size += inSettings->frameTime * 0.5f;
if(size >= 3.0f)
return;
// draw flare
float brightness = 1.0f - (size * 0.333333f);
if(brightness > 0.0f){
float p[3];
p[0] = pos[0];
p[1] = pos[1];
p[2] = pos[2];
flare(p, 1.0f, 1.0f, 1.0f, brightness, inSettings);
}
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glTranslatef(pos[0], pos[1], pos[2]);
glScalef(size, size, size);
// draw sphere
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glActiveTextureARB(GL_TEXTURE2_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, inSettings->nebulatex);
glActiveTextureARB(GL_TEXTURE1_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, inSettings->theWNCM->texture[(inSettings->whichTexture + 1) % inSettings->numAnimTexFrames]);
glActiveTextureARB(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, inSettings->theWNCM->texture[inSettings->whichTexture]);
glUseProgramObjectARB(gooProgram);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_BLEND);
glColor4f(brightness, brightness, brightness, lerp);
glCallList(call_list);
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
glUseProgramObjectARB(0);
glPopMatrix();
}
void Program::apply()
{
glUseProgramObjectARB(id);
vector<UniformBasePtr>::const_iterator iter = uniforms.begin();
while (iter != uniforms.end()) {
(*iter)->apply();
iter++;
}
}
void r_draw_terrain(void) {
OPENGL_EVENT_BEGIN(0, __PRETTY_FUNCTION__);
glUseProgramObjectARB(r_ter_prog);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, r_ter_VBOs[0]);
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, r_ter_VBOs[1]);
glBindTexture(GL_TEXTURE_2D, r_hmap_tex);
// traverse the quadtree
r_recurse_terrain(0.f, 0.f, 1.f, 1.f,
r_ter_max_levels, 1.f);
glBindTexture(GL_TEXTURE_2D, 0);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
glUseProgramObjectARB(0);
OPENGL_EVENT_END();
}
int prepare_render_shadow(camera3d_t light,GLuint* shadowFBO) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, shadowFBO[0]);
glPushAttrib(GL_VIEWPORT_BIT | GL_COLOR_BUFFER_BIT);
glClear( GL_DEPTH_BUFFER_BIT);
glViewport(0,0,shadowFBO[2],shadowFBO[3]);
glCullFace(GL_FRONT); // only draw back faces
glUseProgramObjectARB(0);
camera_look(light);
return 0;
}
//
// Turn of usage of any shader
//
void SHD_Unbind(void)
{
if (!SHD_Initialized())
{
Com_Printf("SHD_Unbind: shader system not initialized\n");
return;
}
glUseProgramObjectARB( 0 );
}
void setShader() {
if(GL20Support){
switch (mode) {
case BUBBLE_MODE:
glUseProgram(bubbleShaderProg);
break;
default:
glUseProgram(bubbleShaderProg);
}
} else {
switch (mode) {
case BUBBLE_MODE:
glUseProgramObjectARB(bubbleShaderProg);
break;
default:
glUseProgramObjectARB(bubbleShaderProg);
}
}
}
int
main()
{
GLenum shader_prog, shader_vert, shader_frag;
int i;
char buf[1024];
const GLcharARB *vertex_shader_code, *fragment_shader_code;
GLint loc;
assert((vertex_shader_code = loadShader("shader.vert")));
assert((fragment_shader_code = loadShader("shader.frag")));
assert(!SDL_Init(SDL_INIT_EVERYTHING));
atexit(SDL_Quit);
SDL_GL_SET_ATTR(RED_SIZE, 8);
SDL_GL_SET_ATTR(GREEN_SIZE, 8);
SDL_GL_SET_ATTR(BLUE_SIZE, 8);
SDL_GL_SET_ATTR(DEPTH_SIZE, 16);
SDL_GL_SET_ATTR(DOUBLEBUFFER, 1);
assert(SDL_SetVideoMode(SCRW, SCRH, SCRBPP, SDL_OPENGL /*| SDL_FULLSCREEN*/));
/* puts((const char *)glGetString(GL_EXTENSIONS));*/
DO_GL_PROCS(DEFINE_GL_PROC)
assert((shader_prog = glCreateProgramObjectARB()));
assert((shader_vert = glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB)));
assert((shader_frag = glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB)));
i = strlen(vertex_shader_code);
printf("vert len: %d\n", i);
glShaderSourceARB(shader_vert, 1, &vertex_shader_code, &i);
i = strlen(fragment_shader_code);
printf("frag len: %d\n", i);
glShaderSourceARB(shader_frag, 1, &fragment_shader_code, &i);
glCompileShaderARB(shader_vert);
glCompileShaderARB(shader_frag);
glAttachObjectARB(shader_prog, shader_vert);
glAttachObjectARB(shader_prog, shader_frag);
glLinkProgramARB(shader_prog);
i = 0; glGetInfoLogARB(shader_vert, sizeof(buf) - 1, &i, buf); buf[i] = 0; printf("vert error: \"%s\"\n", buf);
i = 0; glGetInfoLogARB(shader_frag, sizeof(buf) - 1, &i, buf); buf[i] = 0; printf("frag error: \"%s\"\n", buf);
i = 0; glGetInfoLogARB(shader_prog, sizeof(buf) - 1, &i, buf); buf[i] = 0; printf("prog error: \"%s\"\n", buf);
glUseProgramObjectARB(shader_prog);
loc = glGetUniformLocationARB(shader_prog, "time");
while (!SDL_GetKeyState(0)[SDLK_ESCAPE]) {
float time = (float)SDL_GetTicks() / 2000.0f;
SDL_PumpEvents();
glUniform1fARB(loc, time);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBegin(GL_QUADS);
glVertex3f(-1.0f, 1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, 0.0f);
glVertex3f(1.0f, -1.0f, 0.0f);
glVertex3f(-1.0f, -1.0f, 0.0f);
glEnd();
SDL_GL_SwapBuffers();
}
return 0;
}
// Called by Rocket when it wants to render geometry that it does not wish to optimise.
void RocketSDL2Renderer::RenderGeometry(Rocket::Core::Vertex* vertices, int num_vertices, int* indices, int num_indices, const Rocket::Core::TextureHandle texture, const Rocket::Core::Vector2f& translation)
{
// SDL uses shaders that we need to disable here
glUseProgramObjectARB(0);
glPushMatrix();
glTranslatef(translation.x, translation.y, 0);
std::vector<Rocket::Core::Vector2f> Positions(num_vertices);
std::vector<Rocket::Core::Colourb> Colors(num_vertices);
std::vector<Rocket::Core::Vector2f> TexCoords(num_vertices);
float texw, texh;
SDL_Texture* sdl_texture = NULL;
if(texture)
{
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
sdl_texture = (SDL_Texture *) texture;
SDL_GL_BindTexture(sdl_texture, &texw, &texh);
}
for(int i = 0; i < num_vertices; i++) {
Positions[i] = vertices[i].position;
Colors[i] = vertices[i].colour;
if (sdl_texture) {
TexCoords[i].x = vertices[i].tex_coord.x * texw;
TexCoords[i].y = vertices[i].tex_coord.y * texh;
}
else TexCoords[i] = vertices[i].tex_coord;
};
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, &Positions[0]);
glColorPointer(4, GL_UNSIGNED_BYTE, 0, &Colors[0]);
glTexCoordPointer(2, GL_FLOAT, 0, &TexCoords[0]);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDrawElements(GL_TRIANGLES, num_indices, GL_UNSIGNED_INT, indices);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
if (sdl_texture) {
SDL_GL_UnbindTexture(sdl_texture);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
glColor4f(1.0, 1.0, 1.0, 1.0);
glPopMatrix();
/* Reset blending and draw a fake point just outside the screen to let SDL know that it needs to reset its state in case it wants to render a texture */
glDisable(GL_BLEND);
SDL_SetRenderDrawBlendMode(mRenderer, SDL_BLENDMODE_NONE);
SDL_RenderDrawPoint(mRenderer, -1, -1);
}
unsigned int setup_shader(const char *fname) {
FILE *fp;
unsigned int prog, sdr, len;
char *src_buf;
int success, linked;
if(!(fp = fopen(fname, "r"))) {
fprintf(stderr, "failed to open shader: %s\n", fname);
return 0;
}
fseek(fp, 0, SEEK_END);
len = ftell(fp);
fseek(fp, 0, SEEK_SET);
src_buf = malloc(len + 1);
fread(src_buf, 1, len, fp);
src_buf[len] = 0;
sdr = glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB);
glShaderSourceARB(sdr, 1, (const char**)&src_buf, 0);
free(src_buf);
glCompileShaderARB(sdr);
glGetObjectParameterivARB(sdr, GL_OBJECT_COMPILE_STATUS_ARB, &success);
if(!success) {
int info_len;
char *info_log;
glGetObjectParameterivARB(sdr, GL_OBJECT_INFO_LOG_LENGTH_ARB, &info_len);
if(info_len > 0) {
if(!(info_log = malloc(info_len + 1))) {
perror("malloc failed");
return 0;
}
glGetInfoLogARB(sdr, info_len, 0, info_log);
fprintf(stderr, "shader compilation failed: %s\n", info_log);
free(info_log);
} else {
fprintf(stderr, "shader compilation failed\n");
}
return 0;
}
prog = glCreateProgramObjectARB();
glAttachObjectARB(prog, sdr);
glLinkProgramARB(prog);
glGetObjectParameterivARB(prog, GL_OBJECT_LINK_STATUS_ARB, &linked);
if(!linked) {
fprintf(stderr, "shader linking failed\n");
return 0;
}
glUseProgramObjectARB(prog);
return prog;
}
void HUD::render_gl()
{
glUseProgramObjectARB(0);
//glDisable(GL_LIGHTING);
glPushMatrix();
glLoadIdentity();
glColor3f(0.0f, 0.0f, 0.0f);
font->print(0, 460, "seeds: %d", player->get_num_seeds());
glPopMatrix();
}
//-----------------------------------------------------------------------
void GLSLLinkProgramManager::setActiveGeometryShader(GLSLProgram* geometryGpuProgram)
{
if (geometryGpuProgram != mActiveGeometryGpuProgram)
{
mActiveGeometryGpuProgram = geometryGpuProgram;
// ActiveLinkProgram is no longer valid
mActiveLinkProgram = NULL;
// change back to fixed pipeline
glUseProgramObjectARB(0);
}
}
//-----------------------------------------------------------------------
void GLSLLinkProgramManager::setActiveVertexShader(GLSLProgram* vertexGpuProgram)
{
if (vertexGpuProgram != mActiveVertexGpuProgram)
{
mActiveVertexGpuProgram = vertexGpuProgram;
// ActiveLinkProgram is no longer valid
mActiveLinkProgram = NULL;
// change back to fixed pipeline
glUseProgramObjectARB(0);
}
}
//-----------------------------------------------------------------------
void GLSLLinkProgramManager::setActiveFragmentShader(GLSLProgram* fragmentGpuProgram)
{
if (fragmentGpuProgram != mActiveFragmentGpuProgram)
{
mActiveFragmentGpuProgram = fragmentGpuProgram;
// ActiveLinkProgram is no longer valid
mActiveLinkProgram = NULL;
// change back to fixed pipeline
glUseProgramObjectARB(0);
}
}
/** * Disables the program for rendering. * Generates error messages if something went wrong (i.e. program not initialized etc.) * \param void * \return void * \warning uses glGetError() * \author <a href="mailto:[email protected]">Jens Schneider</a> * \date Aug.2004 */ void GLSLProgram::Disable(void) { if (m_bInitialized) { CheckGLError(); if (m_bGLUseARB) glUseProgramObjectARB(0); else glUseProgram(0); if (!CheckGLError("Disable()")) m_bEnabled=false; } else T_ERROR("No program loaded!"); }
bool Shader::Activate()
{
if(!m_nProgram) {
std::cerr << "[Error] Using the shader "+m_strName+" with no program." << std::endl;
return false;
}
s_pCurrent = this;
glUseProgramObjectARB(m_nProgram);
return true;
}
TexViewerModule::TexViewerModule( bool _container, bool _rotate) : container(_container), rotate(_rotate) {
in_ports.push_back(&tex);
out_ports.push_back(&tex_out);
tex.name = "tex";
tex_out.name = "tex out";
tex.position = make_vector(-0.5f, 0.0f);
tex_out.position = make_vector(0.5f, 0.0f);
if (!scale_bias_shader.ref) {
Graphics::ShaderObjectRef frag = Graphics::get_shader_object("gp_shaders/gp_scale_bias_subpixel.glsl", GL_FRAGMENT_SHADER_ARB);
assert(frag.ref);
scale_bias_shader = Graphics::get_program_object(frag);
assert(scale_bias_shader.ref);
glUseProgramObjectARB(scale_bias_shader->handle);
glUniform1iARB(glGetUniformLocationARB(scale_bias_shader->handle, "image"), 0);
glUseProgramObjectARB(0);
}
}
void draw_model(float x, float y, float z)
{
x = ClientState::location_pointer.x;
y = ClientState::location_pointer.y;
z = ClientState::location_pointer.z;
z+= 2.0f;
const static unsigned int stride = sizeof(struct Vertex);
glColor3ub(255,255,255);
glEnable(GL_TEXTURE_2D);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glBindTexture(GL_TEXTURE_2D, monster_texture);
glBindBuffer(GL_ARRAY_BUFFER, monster_vbo);
glUseProgramObjectARB(monster_shader.shader);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableVertexAttribArray(monster_TexCoord);
glEnableClientState(GL_NORMAL_ARRAY);
glVertexPointer(3, GL_FLOAT, stride, (GLvoid*)0);
glVertexAttribPointer(monster_TexCoord, 2, GL_FLOAT, GL_FALSE, stride, (GLvoid*)12);
glNormalPointer(GL_FLOAT, stride, (GLvoid*)20);
glUniform4f(monster_InPosition, x,y,z,0.0f);
glDrawArrays(GL_TRIANGLES,0, v_num);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableVertexAttribArray(monster_TexCoord);
glDisableClientState(GL_NORMAL_ARRAY);
glCullFace(GL_BACK);
glDisable(GL_CULL_FACE);
glUseProgramObjectARB(0);
}
void Shader::setParameter(const std::string& name, float x, float y, float z)
{
if (m_shaderProgram)
{
ensureGlContext();
// Enable program
GLhandleARB program = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
glCheck(glUseProgramObjectARB(m_shaderProgram));
// Get parameter location and assign it new values
GLint location = glGetUniformLocationARB(m_shaderProgram, name.c_str());
if (location != -1)
glCheck(glUniform3fARB(location, x, y, z));
else
err() << "Parameter \"" << name << "\" not found in shader" << std::endl;
// Disable program
glCheck(glUseProgramObjectARB(program));
}
}
void XGLShader::enable() {
if( this->validShader ) {
//we need this in versions of x-plane prior to about 8.4 or 8.5 that did not have native shader support
//glEnable(GL_VERTEX_PROGRAM_ARB);
//glEnable(GL_FRAGMENT_PROGRAM_ARB);
glUseProgramObjectARB( this->sp );
} else {
printf("XGLShader - tried to enable an invalid shader instance. Ignored.\n");
}
}
int Shader::activate()
{
if (activeShader == this)
return 1;
activeShader = this;
glUseProgramObjectARB(shaderProgram);
//glUniform3f(glGetUniformLocation(shaderProgram, "worldViewProj"),
return 0;
}
