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author | ftrapero <frantracer@gmail.com> | 2017-06-15 14:15:08 +0200 |
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committer | ftrapero <frantracer@gmail.com> | 2017-06-15 14:15:08 +0200 |
commit | 459021c165c7023ee75f524060ca270985b547c1 (patch) | |
tree | ed3dfb281a1c00a9cf59ebf9d165e5a7a0f346bf /nx-X11/extras/Mesa_6.4.1/progs/beos/sample.cpp | |
parent | 4f216e7cf7571885f2995433580c9a3ec068eef4 (diff) | |
parent | 8667d4d97a3e958a7f63c18c34a62469ba5d2079 (diff) | |
download | nx-libs-459021c165c7023ee75f524060ca270985b547c1.tar.gz nx-libs-459021c165c7023ee75f524060ca270985b547c1.tar.bz2 nx-libs-459021c165c7023ee75f524060ca270985b547c1.zip |
Include mesa-6.4.1 project
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.1/progs/beos/sample.cpp')
-rw-r--r-- | nx-X11/extras/Mesa_6.4.1/progs/beos/sample.cpp | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/beos/sample.cpp b/nx-X11/extras/Mesa_6.4.1/progs/beos/sample.cpp new file mode 100644 index 000000000..a86a11874 --- /dev/null +++ b/nx-X11/extras/Mesa_6.4.1/progs/beos/sample.cpp @@ -0,0 +1,225 @@ +// sample BGLView app from the Be Book + + +#include <stdio.h> +#include <Application.h> +#include <Window.h> +#include <GLView.h> + + +class SampleGLView : public BGLView +{ +public: + SampleGLView(BRect frame, uint32 type); + virtual void AttachedToWindow(void); + virtual void FrameResized(float newWidth, float newHeight); + virtual void ErrorCallback(GLenum which); + + void Render(void); + +private: + void gInit(void); + void gDraw(void); + void gReshape(int width, int height); + + float width; + float height; +}; + + + +class SampleGLWindow : public BWindow +{ +public: + SampleGLWindow(BRect frame, uint32 type); + virtual bool QuitRequested() { be_app->PostMessage(B_QUIT_REQUESTED); return true; } + +private: + SampleGLView *theView; +}; + + +class SampleGLApp : public BApplication +{ +public: + SampleGLApp(); +private: + SampleGLWindow *theWindow; +}; + + +SampleGLApp::SampleGLApp() + : BApplication("application/x-vnd.sample") +{ + BRect windowRect; + uint32 type = BGL_RGB|BGL_DOUBLE; + + windowRect.Set(50, 50, 350, 350); + + theWindow = new SampleGLWindow(windowRect, type); +} + + + +SampleGLWindow::SampleGLWindow(BRect frame, uint32 type) + : BWindow(frame, "OpenGL Test", B_TITLED_WINDOW, 0) +{ + theView = new SampleGLView(Bounds(), type); + AddChild(theView); + Show(); + theView->Render(); +} + + + +SampleGLView::SampleGLView(BRect frame, uint32 type) + : BGLView(frame, "SampleGLView", B_FOLLOW_ALL_SIDES, 0, type) +{ + width = frame.right-frame.left; + height = frame.bottom-frame.top; +} + + +void SampleGLView::AttachedToWindow(void) +{ + LockGL(); + BGLView::AttachedToWindow(); + gInit(); + gReshape(width, height); + UnlockGL(); +} + + +void SampleGLView::FrameResized(float newWidth, float newHeight) +{ + BGLView::FrameResized(newWidth, newHeight); + + LockGL(); + + width = newWidth; + height = newHeight; + + gReshape(width,height); + + UnlockGL(); + Render(); +} + + +void SampleGLView::ErrorCallback(GLenum whichError) +{ +// fprintf(stderr, "Unexpected error occured (%d):\\n", whichError); +// fprintf(stderr, " %s\\n", gluErrorString(whichError)); +} + + + +// globals +GLenum use_stipple_mode; // GL_TRUE to use dashed lines +GLenum use_smooth_mode; // GL_TRUE to use anti-aliased lines +GLint linesize; // Line width +GLint pointsize; // Point diameter + +float pntA[3] = { + -160.0, 0.0, 0.0 +}; +float pntB[3] = { + -130.0, 0.0, 0.0 +}; + + + +void SampleGLView::gInit(void) +{ + glClearColor(0.0, 0.0, 0.0, 0.0); + glLineStipple(1, 0xF0E0); + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + use_stipple_mode = GL_FALSE; + use_smooth_mode = GL_TRUE; + linesize = 2; + pointsize = 6; +} + + + +void SampleGLView::gDraw(void) +{ + GLint i; + + glClear(GL_COLOR_BUFFER_BIT); + glLineWidth(linesize); + +/* + + if (use_stipple_mode) { + glEnable(GL_LINE_STIPPLE); + } else { + glDisable(GL_LINE_STIPPLE); + } +*/ + + glDisable(GL_POINT_SMOOTH); + + + glPushMatrix(); + + glPointSize(pointsize); // Set size for point + + for (i = 0; i < 360; i += 5) { + glRotatef(5.0, 0,0,1); // Rotate right 5 degrees + + if (use_smooth_mode) { + glEnable(GL_LINE_SMOOTH); + glEnable(GL_BLEND); + } else { + glDisable(GL_LINE_SMOOTH); + glDisable(GL_BLEND); + } + + glColor3f(1.0, 1.0, 0.0); // Set color for line + glBegin(GL_LINE_STRIP); // And create the line + glVertex3fv(pntA); + glVertex3fv(pntB); + glEnd(); + + glDisable(GL_POINT_SMOOTH); + glDisable(GL_BLEND); + + glColor3f(0.0, 1.0, 0.0); // Set color for point + glBegin(GL_POINTS); + glVertex3fv(pntA); // Draw point at one end + glVertex3fv(pntB); // Draw point at other end + glEnd(); + } + + glPopMatrix(); // Done with matrix +} + + +void SampleGLView::gReshape(int width, int height) +{ + glViewport(0, 0, width, height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-175, 175, -175, 175, -1, 1); + glMatrixMode(GL_MODELVIEW); +} + + +void SampleGLView::Render(void) +{ + LockGL(); + gDraw(); + SwapBuffers(); + UnlockGL(); +} + + + +int main(int argc, char *argv[]) +{ + SampleGLApp *app = new SampleGLApp; + app->Run(); + delete app; + return 0; +} |