static void CALLBACK Paint(void)
{
glViewport(0,0,windW,windH);
glDisable(GL_SCISSOR_TEST);
glPushAttrib(GL_COLOR_BUFFER_BIT);
glColorMask(1,1,1,1);
glIndexMask((GLuint)~0);
glClearColor(0.0,0.0,0.0,0.0);
glClear(GL_COLOR_BUFFER_BIT);
glPopAttrib();
if(mode1)glShadeModel(GL_SMOOTH);
else glShadeModel(GL_FLAT);
if(mode2)glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
else glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
Viewport(0,0); Point();
Viewport(0,1); Lines();
Viewport(0,2); LineStrip();
Viewport(0,3); LineLoop();
Viewport(1,0); Bitmap();
Viewport(1,1); TriangleFan();
Viewport(1,2); Triangles();
Viewport(1,3); TriangleStrip();
Viewport(2,0); Rect();
Viewport(2,1); xPolygon();
Viewport(2,2); Quads();
Viewport(2,3); QuadStrip();
glFlush();
if(doubleBuffer)auxSwapBuffers();
}
bool SkNativeSharedGLContext::init(int width, int height) {
width = width <= 0 ? 1 : width;
height = height <= 0 ? 1 : height;
if (fGL) {
fGL->unref();
this->destroyGLContext();
}
fGL = this->createGLContext(width, height);
if (fGL) {
const GrGLubyte* temp;
GrGLBinding bindingInUse = GrGLGetBindingInUse(this->gl());
if (!fGL->validate(bindingInUse) || !fExtensions.init(bindingInUse, fGL)) {
fGL = NULL;
this->destroyGLContext();
return false;
}
SK_GL_RET(*this, temp, GetString(GR_GL_VERSION));
const char* versionStr = reinterpret_cast<const char*>(temp);
GrGLVersion version = GrGLGetVersionFromString(versionStr);
// clear any existing GL erorrs
GrGLenum error;
do {
SK_GL_RET(*this, error, GetError());
} while (GR_GL_NO_ERROR != error);
SK_GL(*this, GenFramebuffers(1, &fFBO));
SK_GL(*this, BindFramebuffer(GR_GL_FRAMEBUFFER, fFBO));
SK_GL(*this, GenTextures(1, &fTextureID));
SK_GL(*this, BindTexture(GR_GL_TEXTURE_2D, fTextureID));
SK_GL(*this, TexImage2D(GR_GL_TEXTURE_2D, 0,
GR_GL_RGBA,
width, height, 0,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
NULL));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_S, GR_GL_CLAMP_TO_EDGE));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_T, GR_GL_CLAMP_TO_EDGE));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MAG_FILTER, GR_GL_LINEAR));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MIN_FILTER, GR_GL_LINEAR));
SK_GL(*this, FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D,
fTextureID, 0));
SK_GL(*this, GenRenderbuffers(1, &fDepthStencilBufferID));
SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, fDepthStencilBufferID));
// Some drivers that support packed depth stencil will only succeed
// in binding a packed format an FBO. However, we can't rely on packed
// depth stencil being available.
bool supportsPackedDepthStencil;
if (kES2_GrGLBinding == bindingInUse) {
supportsPackedDepthStencil = this->hasExtension("GL_OES_packed_depth_stencil");
} else {
supportsPackedDepthStencil = version >= GR_GL_VER(3,0) ||
this->hasExtension("GL_EXT_packed_depth_stencil") ||
this->hasExtension("GL_ARB_framebuffer_object");
}
if (supportsPackedDepthStencil) {
// ES2 requires sized internal formats for RenderbufferStorage
// On Desktop we let the driver decide.
GrGLenum format = kES2_GrGLBinding == bindingInUse ?
GR_GL_DEPTH24_STENCIL8 :
GR_GL_DEPTH_STENCIL;
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
format,
width, height));
SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER,
fDepthStencilBufferID));
} else {
GrGLenum format = kES2_GrGLBinding == bindingInUse ?
GR_GL_STENCIL_INDEX8 :
GR_GL_STENCIL_INDEX;
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
format,
width, height));
}
SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER,
fDepthStencilBufferID));
SK_GL(*this, Viewport(0, 0, width, height));
SK_GL(*this, ClearStencil(0));
SK_GL(*this, Clear(GR_GL_STENCIL_BUFFER_BIT));
SK_GL_RET(*this, error, GetError());
GrGLenum status;
SK_GL_RET(*this, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (GR_GL_FRAMEBUFFER_COMPLETE != status || GR_GL_NO_ERROR != error) {
fFBO = 0;
fTextureID = 0;
fDepthStencilBufferID = 0;
fGL->unref();
fGL = NULL;
this->destroyGLContext();
return false;
} else {
return true;
}
}
return false;
}
Viewport View::GetBounds() const
{
return Viewport( std::max(v.l, vp.l), std::max(v.b, vp.b), std::min(v.w, vp.w), std::min(v.h, vp.h) );
}
static void Draw(EGLDisplay dpy, EGLSurface surf)
{
glViewport(0, 0, windW, windH);
glDisable(GL_SCISSOR_TEST);
glPushAttrib(GL_COLOR_BUFFER_BIT);
glColorMask(1, 1, 1, 1);
glIndexMask(~0);
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glPopAttrib();
if (mode1) {
glShadeModel(GL_SMOOTH);
} else {
glShadeModel(GL_FLAT);
}
if (mode2) {
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
} else {
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
}
Viewport(0, 0); Point();
Viewport(0, 1); Lines();
Viewport(0, 2); LineStrip();
Viewport(0, 3); LineLoop();
Viewport(1, 0); Bitmap();
Viewport(1, 1); TriangleFan();
Viewport(1, 2); Triangles();
Viewport(1, 3); TriangleStrip();
Viewport(2, 0); Rect();
Viewport(2, 1); PolygonFunc();
Viewport(2, 2); Quads();
Viewport(2, 3); QuadStrip();
glFlush();
if (doubleBuffer) {
eglSwapBuffers(dpy, surf);
}
}
bool SkGLContext::init(int width, int height) {
if (fGL) {
fGL->unref();
this->destroyGLContext();
}
fGL = this->createGLContext();
if (fGL) {
fExtensionString =
reinterpret_cast<const char*>(SK_GL(*this,
GetString(GR_GL_EXTENSIONS)));
const char* versionStr =
reinterpret_cast<const char*>(SK_GL(*this,
GetString(GR_GL_VERSION)));
GrGLVersion version = GrGLGetVersionFromString(versionStr);
// clear any existing GL erorrs
GrGLenum error;
do {
error = SK_GL(*this, GetError());
} while (GR_GL_NO_ERROR != error);
GrGLuint cbID;
GrGLuint dsID;
GrGLBinding bindingInUse = GrGLGetBindingInUse(this->gl());
SK_GL(*this, GenFramebuffers(1, &fFBO));
SK_GL(*this, BindFramebuffer(GR_GL_FRAMEBUFFER, fFBO));
SK_GL(*this, GenRenderbuffers(1, &cbID));
SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, cbID));
if (kES2_GrGLBinding == bindingInUse) {
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
GR_GL_RGBA8,
width, height));
} else {
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
GR_GL_RGBA,
width, height));
}
SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER,
cbID));
SK_GL(*this, GenRenderbuffers(1, &dsID));
SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, dsID));
// Some drivers that support packed depth stencil will only succeed
// in binding a packed format an FBO. However, we can't rely on packed
// depth stencil being available.
bool supportsPackedDepthStencil;
if (kES2_GrGLBinding == bindingInUse) {
supportsPackedDepthStencil =
this->hasExtension("GL_OES_packed_depth_stencil");
} else {
supportsPackedDepthStencil = version >= GR_GL_VER(3,0) ||
this->hasExtension("GL_EXT_packed_depth_stencil") ||
this->hasExtension("GL_ARB_framebuffer_object");
}
if (supportsPackedDepthStencil) {
// ES2 requires sized internal formats for RenderbufferStorage
// On Desktop we let the driver decide.
GrGLenum format = kES2_GrGLBinding == bindingInUse ?
GR_GL_DEPTH24_STENCIL8 :
GR_GL_DEPTH_STENCIL;
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
format,
width, height));
SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER,
dsID));
} else {
GrGLenum format = kES2_GrGLBinding == bindingInUse ?
GR_GL_STENCIL_INDEX8 :
GR_GL_STENCIL_INDEX;
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
format,
width, height));
}
SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER,
dsID));
SK_GL(*this, Viewport(0, 0, width, height));
SK_GL(*this, ClearStencil(0));
SK_GL(*this, Clear(GR_GL_STENCIL_BUFFER_BIT));
error = SK_GL(*this, GetError());
GrGLenum status =
SK_GL(*this, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (GR_GL_FRAMEBUFFER_COMPLETE != status ||
GR_GL_NO_ERROR != error) {
fFBO = 0;
fGL->unref();
fGL = NULL;
this->destroyGLContext();
return false;
} else {
return true;
}
}
return false;
}
RendererOGL::RendererOGL(WindowSDL *window, const Graphics::Settings &vs)
: Renderer(window, window->GetWidth(), window->GetHeight())
, m_numLights(0)
, m_numDirLights(0)
//the range is very large due to a "logarithmic z-buffer" trick used
//http://outerra.blogspot.com/2009/08/logarithmic-z-buffer.html
//http://www.gamedev.net/blog/73/entry-2006307-tip-of-the-day-logarithmic-zbuffer-artifacts-fix/
, m_minZNear(0.0001f)
, m_maxZFar(10000000.0f)
, m_useCompressedTextures(false)
, m_invLogZfarPlus1(0.f)
, m_activeRenderTarget(0)
, m_activeRenderState(nullptr)
, m_matrixMode(MatrixMode::MODELVIEW)
{
if (!initted) {
initted = true;
if (!ogl_LoadFunctions())
Error(
"Pioneer can not run on your graphics card as it does not appear to support OpenGL 3.3\n"
"Please check to see if your GPU driver vendor has an updated driver - or that drivers are installed correctly."
);
if (ogl_ext_EXT_texture_compression_s3tc == ogl_LOAD_FAILED)
Error(
"OpenGL extension GL_EXT_texture_compression_s3tc not supported.\n"
"Pioneer can not run on your graphics card as it does not support compressed (DXTn/S3TC) format textures."
);
}
m_viewportStack.push(Viewport());
const bool useDXTnTextures = vs.useTextureCompression;
m_useCompressedTextures = useDXTnTextures;
//XXX bunch of fixed function states here!
glCullFace(GL_BACK);
glFrontFace(GL_CCW);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
SetMatrixMode(MatrixMode::MODELVIEW);
m_modelViewStack.push(matrix4x4f::Identity());
m_projectionStack.push(matrix4x4f::Identity());
SetClearColor(Color4f(0.f, 0.f, 0.f, 0.f));
SetViewport(0, 0, m_width, m_height);
if (vs.enableDebugMessages)
GLDebug::Enable();
// check enum PrimitiveType matches OpenGL values
assert(POINTS == GL_POINTS);
assert(LINE_SINGLE == GL_LINES);
assert(LINE_LOOP == GL_LINE_LOOP);
assert(LINE_STRIP == GL_LINE_STRIP);
assert(TRIANGLES == GL_TRIANGLES);
assert(TRIANGLE_STRIP == GL_TRIANGLE_STRIP);
assert(TRIANGLE_FAN == GL_TRIANGLE_FAN);
}
VOID Editor::Run()
{
// check the window rect
RECT wnd_rc; ::GetClientRect(mWnd, &wnd_rc);
I32 wnd_width = wnd_rc.right-wnd_rc.left;
I32 wnd_height = wnd_rc.bottom-wnd_rc.top;
if(wnd_width<=0||wnd_height<=0) return;
// get the frame time
static U32 system_time = Timer::instance().time();
U32 current_time = Timer::instance().time();
U32 frame_time = current_time - system_time;
if(frame_time == 0) return;
system_time = current_time;
if(mGraphPtr==NULL) return;
// reset the render context
mGraphPtr->Reset();
// get the window rect
Vector4 rect = Vector4(wnd_rc.left, wnd_rc.top, wnd_rc.right, wnd_rc.bottom);
// set the viewport
mGraphPtr->viewport(rect);
ViewportPtr viewport = GNEW(Viewport(rect[0],rect[1],rect[2],rect[3])); CHECK(viewport);
mGraphPtr->draw(static_cast<Operation*>(viewport.Ptr()));
// set the scissor
ScissorPtr scissor = GNEW(Scissor(rect[0],rect[1],rect[2],rect[3]));
mGraphPtr->draw(static_cast<Operation*>(scissor.Ptr()));
// clear the target and the zbuffer
ClearPtr clear = GNEW(Clear(Clear::CT_COLOR|Clear::CT_DEPTH,Vector4(0.5,0.5,0.5,1.0),1.0f)); CHECK(clear);
mGraphPtr->draw(static_cast<Operation*>(clear.Ptr()));
// make the projection and the view
F32 left = -P2U(wnd_width/2)*mScale;
F32 right = P2U(wnd_width/2)*mScale;
F32 bottom = -P2U(wnd_height/2)*mScale;
F32 top = P2U(wnd_height/2)*mScale;
F32 znear = -512.0;
F32 zfar = 512.0;
mGraphPtr->projection(Matrix::makeOrtho(left,right,bottom,top,znear,zfar));
mGraphPtr->view(Matrix::makeTranslate(-mEye));
// draw the map
if(mMapPtr)
{
// update the map
Vector3 start(rect[0], rect[1], 0);
mGraphPtr->unproject(start, start);
Vector3 end(rect[2], rect[3], 0);
mGraphPtr->unproject(end, end);
mMapPtr->Update(Vector4(start[0], start[1], end[0], end[1]));
// draw the map
mMapPtr->Draw(mGraphPtr.Ptr());
}
// draw the brush
if(mBrushPtr) mBrushPtr->Draw(mGraphPtr.Ptr());
// swap the graph buffer
mGraphPtr->swap();
// swap buffers
eglSwapBuffers(mDisplay, mSurface);
}