void FrameBufferObject::resize() const
{
if(m_depth && m_render != -1)
{
glBindRenderbuffer(GL_RENDERBUFFER, m_render);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, m_size.x, m_size.y);
glError();
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glError();
}
if(m_texture != -1)
{
glBindTexture(GL_TEXTURE_2D, m_texture);
glTexImage2D(GL_TEXTURE_2D, 0, m_internal, m_size.x, m_size.y, 0, m_format, m_type, 0);
glError();
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glBindTexture(GL_TEXTURE_2D, 0);
glError();
}
}
void PolygonalDrawable::draw(
const Program & program
, const glm::mat4 & transform)
{
if(!m_geometry || m_geometry->indices().empty())
return;
if(m_arrayBOsByAttribute.empty() || m_elementArrayBOs.empty())
initialize(program);
program.use();
program.setUniform(TRANSFORM_UNIFORM, transform);
glBindVertexArray(m_vao);
glError();
t_bufferObjects::const_iterator e(m_elementArrayBOs.begin());
const t_bufferObjects::const_iterator eEnd(m_elementArrayBOs.end());
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
for(; e != eEnd; ++e)
(*e)->draw(m_geometry->mode());
glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
glBindVertexArray(0);
glError();
program.release();
}
void enemy::draw()
{
glPushMatrix();
glError();
glTranslatef( pos.x, pos.y, pos.z );
glError();
glBegin( GL_LINES );
#define LEN 1.0f
#define line( _pt1,_pt2 ) glVertex3fv( _pt1 );glVertex3fv( _pt2 )
GLfloat v0[] = { -LEN, -LEN, 0.0f };
GLfloat v1[] = { -LEN, LEN, 0.0f };
GLfloat v2[] = { LEN, LEN, 0.0f };
GLfloat v3[] = { LEN, -LEN, 0.0f };
line( v0, v1 );
line( v1, v2 );
line( v2, v3 );
line( v3, v0 );
glEnd();
glError();
glPopMatrix();
glError();
}
void PolygonalGeometry::initialize(const Program & program)
{
if(!m_arrayBOsByAttribute.empty() && !m_elementArrayBOs.empty())
return;
deleteBuffers();
glGenVertexArrays(1, &m_vao);
glError();
glBindVertexArray(m_vao);
glError();
{
VertexReuse vertexReuse;
VertexCacheOptimizer vertexCacheOptimizer;
applyOptimizer(&vertexReuse);
applyOptimizer(&vertexCacheOptimizer);
}
// setup element array buffers
BufferObject * indexBO = new BufferObject(GL_ELEMENT_ARRAY_BUFFER, GL_STATIC_DRAW);
indexBO->data<GLuint>(indices(), GL_UNSIGNED_INT, 1);
m_elementArrayBOs.push_back(indexBO);
// setup array buffers
BufferObject * vertexBO = new BufferObject(GL_ARRAY_BUFFER, GL_STATIC_DRAW);
vertexBO->data<glm::vec3>(copyVertices(), GL_FLOAT, 3);
m_arrayBOsByAttribute["a_vertex"] = vertexBO;
// TODO: the geometry should provide this information.
if( !normals().isEmpty() )
{
BufferObject * normalBO = new BufferObject(GL_ARRAY_BUFFER, GL_STATIC_DRAW);
normalBO->data<glm::vec3>(normals(), GL_FLOAT, 3);
m_arrayBOsByAttribute["a_normal"] = normalBO;
}
// bind all buffers to their attributes
t_bufferObjectsByAttribute::const_iterator i(m_arrayBOsByAttribute.begin());
const t_bufferObjectsByAttribute::const_iterator iEnd(m_arrayBOsByAttribute.end());
for( ; i != iEnd; ++i )
i.value()->bind(program.attributeLocation(i.key()));
glBindVertexArray(0);
glError();
}
void FrameBufferObject::bind() const
{
if(!isFrameBuffer())
initialize();
glViewport(0, 0, m_size.x, m_size.y);
glError();
glBindFramebuffer(GL_FRAMEBUFFER, m_fbo);
glError();
}
void ship::draw()
{
calcPos();
calcTail();
const position * last_pos = &pos;
for( std::list<position>::iterator it = tail.begin(); it != tail.end(); it++)
//for( int i = -1; i < (int)/*hack*/tail.size(); ++i )
{
glPushMatrix();
glError();
glTranslatef( last_pos->x, last_pos->y, 0 );
glError();
glBegin( GL_LINES );
#define line( _pt1,_pt2 ) glVertex3fv( _pt1 );glVertex3fv( _pt2 )
//triangle
GLfloat v0[] = { 0, HEIGHT, 0.0f };
GLfloat v1[] = { -WIDTH, 0, 0.0f };
GLfloat v2[] = { WIDTH, 0, 0.0f };
//barrel
GLfloat v3[] = { 0, 2 * HEIGHT, 0.0f };
//suppressor
GLfloat v4[] = { -WIDTH/3, 2 * HEIGHT - HEIGHT/3, 0.0f };
GLfloat v5[] = { WIDTH/3, 2 * HEIGHT - HEIGHT/3, 0.0f };
line( v0, v1 );
line( v1, v2 );
line( v2, v0 );
line( v0, v3 );
line( v3, v4 );
line( v4, v5 );
line( v5, v3 );
glEnd();
glError();
glPopMatrix();
glError();
last_pos = &*it;
}
}
void SetExtGLFuncs(void)
{
//----------------------------------------------------//
SetFixes(); // update fix infos
//----------------------------------------------------//
{
if(bAdvancedBlend) bUseMultiPass=TRUE; // -> pseudo-advanced with 2 passes
else bUseMultiPass=FALSE; // -> or simple 'bright color' mode
// bGLBlend=FALSE; // -> no ext blending!
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); glError();
}
if(bOpaquePass) // opaque mode?
{
if(dwActFixes&32)
{
TCF[0]=CP8RGBA_0;
PalTexturedColourFn=CP8RGBA; // -> init col func
}
else
{
TCF[0]=XP8RGBA_0;
PalTexturedColourFn=XP8RGBA; // -> init col func
}
TCF[1]=XP8RGBA_1;
glAlphaFuncx(GL_GREATER,0.49f); glError();
}
else // no opaque mode?
{
TCF[0]=TCF[1]=P8RGBA;
PalTexturedColourFn=P8RGBA; // -> init col func
glAlphaFuncx(GL_NOTEQUAL,0); glError(); // --> set alpha func
}
//----------------------------------------------------//
LoadSubTexFn=LoadSubTexturePageSort; // init load tex ptr
bBlendEnable=FALSE; // init blending: off
glDisable(GL_BLEND); glError();
SetScanTrans(); // init scan lines (if wanted)
}
const bool Shader::setSource(
const QString & source
, const bool update)
{
m_source = source;
const QByteArray bytes(m_source.toLocal8Bit());
const GLchar * chr(bytes.constData());
glShaderSource(m_shader, 1, &chr, nullptr);
glError();
glCompileShader(m_shader);
glError();
GLint status(GL_FALSE);
glGetShaderiv(m_shader, GL_COMPILE_STATUS, &status);
m_compiled = (GL_TRUE == status);
m_log = "";
if(!m_compiled)
{
GLint maxLength(0);
GLint logLength(0);
glGetShaderiv(m_shader, GL_INFO_LOG_LENGTH, &maxLength);
glError();
GLchar *log = new GLchar[maxLength];
glGetShaderInfoLog(m_shader, maxLength, &logLength, log);
glError();
m_log = log;
t_typeStrings::const_iterator i(typeStrings.find(type()));
if(typeStrings.end() != i)
qCritical("Compiling shader of type %s failed.", qPrintable(i.value()));
else
qCritical("Compiling shader of type %i failed.", type());
if(!m_log.isEmpty())
qCritical("%s", qPrintable(m_log));
}
if(update)
this->update();
return isCompiled();
}
//.......................................................................................
void StateMain::SetupConsole()
{
// console
int m_iLineHeight = m_pFont->FontHeight();
float ymin = -1.0f + ((1.0f / (float)(g_vWindowDimensions.y / 2)) * (m_iLineHeight + 5));
GLfloat vertices[18][2] = {
{ -1.0f, -1.0f }, // Triangle 1
{ 1.0f, -1.0f },
{ -1.0f, 1.0f },
{ 1.0f, -1.0f }, // Triangle 2
{ 1.0f, 1.0f },
{ -1.0f, 1.0f },
{ -1.0f, -1.0f }, // Triangle 3
{ 1.0f, -1.0f },
{ -1.0f, ymin },
{ 1.0f, -1.0f }, // Triangle 4
{ 1.0f, ymin },
{ -1.0f, ymin },
{ -1.0f, -1.0f }, // Triangle 5
{ 1.0f, -1.0f },
{ -1.0f, ymin },
{ 1.0f, -1.0f }, // Triangle 6
{ 1.0f, ymin },
{ -1.0f, ymin },
};
glGenVertexArrays(1, &vao);
glError("StateMain::SetupConsole()", "glGenVertexArrays() vao");
glBindVertexArray(vao);
glError("StateMain::SetupConsole()", "glBindVertexArray() vao");
glGenBuffers(1, &vbo);
glError("StateMain::SetupConsole()", "glGenBuffers() vao");
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glError("StateMain::SetupConsole()", "glBindBuffer(GL_ARRAY_BUFFER, vbo)");
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * sizeof(vertices), (GLvoid *)vertices, GL_STATIC_DRAW);
glError("StateMain::SetupConsole()", "glBufferData(GL_ARRAY_BUFFER, sizeof(Vector3f) * vConsoleVertices.size(), (GLvoid *)&vConsoleVertices[0], GL_STATIC_DRAW)");
GLuint aPos = m_pProgramManager->Program("consoleProgram1")->GetAttribute("attributePosition");
Logw("aPos = %d\n", aPos);
glEnableVertexAttribArray(aPos);
glError("StateMain::SetupConsole()", "glEnableVertexAttribArray(pos)");
glVertexAttribPointer(aPos, 2, GL_FLOAT, GL_FALSE, 0, (GLvoid *)0);
glError("StateMain::SetupConsole()", "glVertexAttribPointer(pos, sizeof(Vector3f), GL_FLOAT, GL_FALSE, 0, (GLvoid *)0)");
glDisableVertexAttribArray(aPos);
glError("StateMain::SetupConsole()", "glDisableVertexAttribArray(pos)");
glBindVertexArray(0);
glError("StateMain::SetupConsole()", "glBindVertexArray(0)");
}
void Menger::buildModel() {
rebuild();
glError("finished rebuild\n");
glBindBuffer(GL_ARRAY_BUFFER, buffers[0]);
vPosition = glGetAttribLocation(program, "vPosition");
glEnableVertexAttribArray(vPosition);
glVertexAttribPointer(vPosition, 4, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glError("bound position");
glBindBuffer(GL_ARRAY_BUFFER, buffers[1]);
vColor = glGetAttribLocation(program, "vColor");
glEnableVertexAttribArray(vColor);
glVertexAttribPointer(vColor, 4, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glError("bound color");
}
FastLaplaceComper::FastLaplaceComper()
: _src_img(NULL),
_tgt_img(NULL),
_cd(NULL)
{
const char *shader_src = "uniform sampler2D source_img;\n"
"void main()\n"
"{\n"
" gl_FragColor = (2.0*gl_Color-1.0) + texture2D(source_img, gl_TexCoord[0].st);\n"
"}";
m_fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(m_fragmentShader, 1, &shader_src, NULL);
glCompileShader(m_fragmentShader);
printLog(m_fragmentShader);
m_shaderProgram = glCreateProgram();
glAttachShader(m_shaderProgram, m_fragmentShader);
glLinkProgram(m_shaderProgram);
printLog(m_shaderProgram);
m_srcImgTexLoc = glGetUniformLocation(m_shaderProgram, "source_img");
glGenTextures(1, &m_srcImgTexId);
glGenTextures(1, &m_tgtImgTexId);
glError();
_debugDrawMesh = false;
_doInterp = true;
}
void Viewer::PickModel()
{
Gui::Fixed *f = new Gui::Fixed();
f->SetSizeRequest(Gui::Screen::GetWidth()*0.5f, Gui::Screen::GetHeight()*0.5);
Gui::Screen::AddBaseWidget(f, Gui::Screen::GetWidth()*0.25f, Gui::Screen::GetHeight()*0.25f);
f->Add(new Gui::Label("Enter the name of the model you want to view:"), 0, 0);
Gui::Label *errormsg = new Gui::Label("");
f->Add(errormsg, 0, 64);
Gui::TextEntry *entry = new Gui::TextEntry();
entry->onKeyPress.connect(sigc::bind(sigc::mem_fun(this, &Viewer::TryModel), entry, errormsg));
entry->Show();
f->Add(entry, 0, 32);
m_model = 0;
while (!m_model) {
this->Hide();
f->ShowAll();
PollEvents();
Render::PrepareFrame();
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
Render::PostProcess();
Gui::Draw();
glError();
Render::SwapBuffers();
}
Gui::Screen::RemoveBaseWidget(f);
delete f;
this->Show();
}
void FrameBufferObject::bindTexture2D(
const Program & program
, const QString & uniform
, const glm::uint slot) const
{
if(!isTexture())
initialize();
glActiveTexture(GL_TEXTURE0 + slot);
glError();
glBindTexture(GL_TEXTURE_2D, m_texture);
glError();
program.setUniform(uniform, slot);
}
void Camera::draw(
Program * program
, FrameBufferObject * target)
{
if(m_invalidated)
update();
if(target)
target->bind();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, m_viewport.x, m_viewport.y);
glError();
if(program)
{
program->use();
program->setUniform(VIEWPORT_UNIFORM, m_viewport);
program->setUniform(VIEW_UNIFORM, m_view);
program->setUniform(PROJECTION_UNIFORM, m_projection);
program->setUniform(ZNEAR_UNIFORM, m_zNear);
program->setUniform(ZFAR_UNIFORM, m_zFar);
}
Group::draw(program, glm::mat4());
if(target)
target->release();
}
int setSavedGLState(int target)
{
int error;
DMARK /* restore original gl state */
ORIG_GL(glPopAttrib)();
error = glError();
if (error) {
return error;
}
/* save original gl state */
error = saveGLState();
if (error) {
return error;
}
/* FIXME CHECK AGAIN!!!! */
#if 0
/* disable everything that could interfere when writting the debug result to
* the debug buffer and setup draw and read buffer.
*/
error = setDbgRenderState(target);
if (error) {
return error;
}
#endif
return DBG_NO_ERROR;
}
const QString GPUQuery::glew(const GLenum penum)
{
const QString result(reinterpret_cast<const char*>(glewGetString(penum)));
glError();
return result;
}
void FrameBufferObject::bindTexture2D(
Program * minpathram
, const std::string & uniform
, const glm::uint slot) const
{
if(!GPUQuery::isTexture(m_texture))
initialize();
glActiveTexture(GL_TEXTURE0 + slot);
glError();
glBindTexture(GL_TEXTURE_2D, m_texture);
glError();
if(minpathram)
minpathram->setUniform(uniform, slot);
}
void FrameBufferObject::release() const
{
if(!GPUQuery::isFrameBuffer(m_fbo))
return;
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glError();
}
void FrameBufferObject::releaseTexture2D() const
{
if(!GPUQuery::isTexture(m_texture))
return;
glBindTexture(GL_TEXTURE_2D, 0);
glError();
}
void debugGLError( const std::string& when, const GLenum error,
const char* file, const int line )
{
LBWARN << lunchbox::disableFlush << "Got " << glError( error ) << ' '
<< when << " in " << file << ':' << line << std::endl
<< lunchbox::backtrace << lunchbox::enableFlush << std::endl;
throw GLException( error );
}
/* TODO: error checking */
static void freeDbgShader(void)
{
if (g.dbgShaderHandle != -1) {
ORIG_GL(glDeleteProgram)(g.dbgShaderHandle);
glError();
g.dbgShaderHandle = -1;
}
}
/**
* Update the sector for when the terrain is changed.
*/
static void updateSectorGeometry(int x, int y)
{
RenderVertex *geometry;
RenderVertex *water;
DecalVertex *decaldata;
int geometrySize = 0;
int waterSize = 0;
int decalSize = 0;
geometry = (RenderVertex *)malloc(sizeof(RenderVertex)*sectors[x*ySectors + y].geometrySize);
water = (RenderVertex *)malloc(sizeof(RenderVertex)*sectors[x*ySectors + y].waterSize);
setSectorGeometry(x, y, geometry, water, &geometrySize, &waterSize);
ASSERT(geometrySize == sectors[x*ySectors + y].geometrySize, "something went seriously wrong updating the terrain");
ASSERT(waterSize == sectors[x*ySectors + y].waterSize , "something went seriously wrong updating the terrain");
glBindBuffer(GL_ARRAY_BUFFER, geometryVBO); glError();
glBufferSubData(GL_ARRAY_BUFFER, sizeof(RenderVertex)*sectors[x*ySectors + y].geometryOffset,
sizeof(RenderVertex)*sectors[x*ySectors + y].geometrySize, geometry); glError();
glBindBuffer(GL_ARRAY_BUFFER, waterVBO); glError();
glBufferSubData(GL_ARRAY_BUFFER, sizeof(RenderVertex)*sectors[x*ySectors + y].waterOffset,
sizeof(RenderVertex)*sectors[x*ySectors + y].waterSize, water); glError();
free(geometry);
free(water);
if (sectors[x*ySectors + y].decalSize <= 0)
{
// Nothing to do here, and glBufferSubData(GL_ARRAY_BUFFER, 0, 0, *) crashes in my graphics driver. Probably shouldn't crash...
return;
}
decaldata = (DecalVertex *)malloc(sizeof(DecalVertex)*sectors[x*ySectors + y].decalSize);
setSectorDecals(x, y, decaldata, &decalSize);
ASSERT(decalSize == sectors[x*ySectors + y].decalSize , "the amount of decals has changed");
glBindBuffer(GL_ARRAY_BUFFER, decalVBO); glError();
glBufferSubData(GL_ARRAY_BUFFER, sizeof(DecalVertex)*sectors[x*ySectors + y].decalOffset,
sizeof(DecalVertex)*sectors[x*ySectors + y].decalSize, decaldata); glError();
glBindBuffer(GL_ARRAY_BUFFER, 0);
free (decaldata);
glBindBuffer(GL_ARRAY_BUFFER, 0); // HACK Must unbind GL_ARRAY_BUFFER (don't know if it has to be unbound everywhere), otherwise text rendering may mysteriously crash.
}
FrameBufferObject::~FrameBufferObject()
{
if(GPUQuery::isTexture(m_texture))
{
glDeleteTextures(1, &m_texture);
glError();
}
if(GPUQuery::isRenderBuffer(m_render))
{
glDeleteRenderbuffers(1, &m_render);
glError();
}
if(GPUQuery::isFrameBuffer(m_fbo))
{
glDeleteFramebuffers(1, &m_fbo);
glError();
}
}
const GLint GPUQuery::queryi(const GLenum penum)
{
GLint result;
glGetIntegerv(penum, &result);
glError();
return result;
}
OGL3ConstantBuffer::OGL3ConstantBuffer(OpenGL3APIWrapper* pWrapper,HAGE::u32 nSize) : m_pWrapper(pWrapper),m_nSize(nSize)
{
glGenBuffers(1,&m_cbo);
glBindBuffer(GL_UNIFORM_BUFFER, m_cbo);
glBufferData(GL_UNIFORM_BUFFER, m_nSize,
NULL, GL_DYNAMIC_DRAW);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
glError();
}
static void draw_screen( void )
{
static ship s;
/* Clear the color and depth buffers. */
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glError();
/* We don't want to modify the projection matrix. */
glMatrixMode( GL_MODELVIEW );
glError();
glLoadIdentity( );
glError();
/* Move down the z-axis. */
glTranslatef( 0.0, 0.0, -15.0 ); glError();
glPushMatrix(); glError();
/* Rotate. */
//glRotatef( 100 * tim_x.read(), 1.0, 0.0, 0.0 );
//glRotatef( 100 * tim_y.read(), 0.0, 1.0, 0.0 );
// glRotatef( 100 * tim_c.read(), 0.0, 0.0, 1.0 );
glTranslatef( 5 * tim_x.read(), 5 * tim_y.read(), 0 );
glError();
glBegin( GL_LINES );
#define BRICK_CNT 40//actually sqrt(brick count)
for( int x=-BRICK_CNT;x<BRICK_CNT;++x )
{
for( int y=-BRICK_CNT;y<BRICK_CNT;++y)
{
draw_rect(x,y,1,1,y==0,true);
}
}
glEnd();
glError();
glPopMatrix();
glError();
glRotatef( 100 * tim_x.read(), 1.0, 0.0, 0.0 );
glRotatef( 100 * tim_y.read(), 0.0, 1.0, 0.0 );
s.draw();
/*
* Swap the buffers. This this tells the driver to
* render the next frame from the contents of the
* back-buffer, and to set all rendering operations
* to occur on what was the front-buffer.
*/
SDL_GL_SwapBuffers( );
}
void FrameBufferObject::bind(GLenum target) const
{
if(!GPUQuery::isFrameBuffer(m_fbo))
initialize();
glViewport(0, 0, m_size.x, m_size.y);
glBindFramebuffer(target, m_fbo);
glError();
}
Shader::~Shader()
{
if(GPUQuery::isShader(m_shader))
{
glDeleteShader(m_shader);
glError();
m_shader = 0;
}
}
Shader::~Shader()
{
if(isShader())
{
glDeleteShader(m_shader);
glError();
m_shader = 0;
}
}
void PathTracingBVH::geometryToTexture(GLuint textureSlot) {
BufferObject geometryBuffer(GL_TEXTURE_BUFFER, GL_STATIC_READ);
geometryBuffer.data<glm::vec4>(m_geometry->data(), m_geometry->size(), GL_RGBA32F, sizeof(glm::vec4));
glActiveTexture(textureSlot);
GLuint textureHandle;
glGenTextures(1, &textureHandle);
glBindTexture(GL_TEXTURE_BUFFER, textureHandle);
glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA32F, geometryBuffer.buffer());
glError();
}
