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sdk: an attempt to create GL-based blitter

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git-svn-id: svn://kolibrios.org@4464 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2014-01-17 06:04:33 +00:00
parent 54686106c2
commit 5fd1f58066
2 changed files with 273 additions and 0 deletions
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113
contrib/sdk/samples/Mesa/gl-render/gl-render.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define EGL_EGLEXT_PROTOTYPES
#include "EGL/egl.h"
#include "EGL/eglext.h"
#include "GL/gl.h"
#include "gbm.h"
#include <kos32sys.h>
#include "eglut.h"
GLint list;
static void init(void)
{
// fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
// fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
// fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
// fflush(stderr);
list = glGenLists(1);
glNewList(list, GL_COMPILE);
/* XXX: this state-change will only be executed if list is called
* from outside a begin/end pair:
*/
glShadeModel( GL_FLAT );
glBegin(GL_TRIANGLES);
glColor3f(0,0,0.7);
glVertex3f( -0.9, 0.9, -30.0);
glColor3f(0,0.9,0);
glVertex3f( -0.9, -0.9, -30.0);
glColor3f(0.8,0,0);
glVertex3f( 0.9, 0.0, -30.0);
glEnd();
glEndList();
}
static void
idle(void)
{
eglutPostRedisplay();
}
static void reshape(int width, int height)
{
asm volatile ("int3");
/*
glViewport(0, 0, (GLint)width, (GLint)height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 100.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
*/
glViewport(0, 0, (GLint) width, (GLint) height);
GLfloat h = (GLfloat) height / (GLfloat) width;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
static void draw(void)
{
asm volatile ("int3");
glClear(GL_COLOR_BUFFER_BIT);
glShadeModel( GL_SMOOTH );
glBegin(GL_TRIANGLES);
/* Note: call the list from inside a begin/end pair. The end is
* provided by the display list...
*/
glCallList(list);
// glFlush();
}
int
main(int argc, char *argv[])
{
eglutInitWindowSize(384, 384);
eglutInitAPIMask(EGLUT_OPENGL_BIT);
eglutInit(argc, argv);
eglutCreateWindow("gl-render");
eglutIdleFunc(idle);
eglutReshapeFunc(reshape);
eglutDisplayFunc(draw);
glClearColor( 0, 0, 0, 1.0);
init();
glDrawBuffer(GL_BACK);
eglutMainLoop();
return 0;
}

160
contrib/sdk/samples/Mesa/gl-render/main.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#define EGL_EGLEXT_PROTOTYPES
#include "EGL/egl.h"
#include "EGL/eglext.h"
#include "GL/gl.h"
#include "gbm.h"
#include <kos32sys.h>
#include <pixlib2.h>
int main()
{
struct gbm_device *gbm;
struct gbm_surface *gs;
EGLDisplay dpy;
EGLint major, minor;
EGLContext context;
EGLSurface surface;
EGLConfig config;
EGLint config_attribs[32];
EGLint num_configs, i;
GLint list;
int fd;
fd = get_service("DISPLAY");
gbm = gbm_create_device(fd);
if( gbm == NULL){
printf("failed to initialize GBM device");
return 1;
};
dpy = eglGetDisplay((EGLNativeDisplayType)gbm);
if (!eglInitialize(dpy, &major, &minor))
printf("failed to initialize EGL display");
printf("EGL_VERSION = %s\n", eglQueryString(dpy, EGL_VERSION));
printf("EGL_VENDOR = %s\n", eglQueryString(dpy, EGL_VENDOR));
printf("EGL_EXTENSIONS = %s\n", eglQueryString(dpy, EGL_EXTENSIONS));
printf("EGL_CLIENT_APIS = %s\n",eglQueryString(dpy, EGL_CLIENT_APIS));
i = 0;
config_attribs[i++] = EGL_RED_SIZE;
config_attribs[i++] = 1;
config_attribs[i++] = EGL_GREEN_SIZE;
config_attribs[i++] = 1;
config_attribs[i++] = EGL_BLUE_SIZE;
config_attribs[i++] = 1;
config_attribs[i++] = EGL_DEPTH_SIZE;
config_attribs[i++] = 1;
config_attribs[i++] = EGL_SURFACE_TYPE;
config_attribs[i++] = EGL_WINDOW_BIT;
config_attribs[i++] = EGL_RENDERABLE_TYPE;
config_attribs[i++] = EGL_OPENGL_BIT;
config_attribs[i] = EGL_NONE;
if (!eglChooseConfig(dpy,config_attribs, &config, 1, &num_configs) || !num_configs)
printf("failed to choose a config");
eglBindAPI(EGL_OPENGL_API);
context = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL);
if (!context)
printf("failed to create context");
gs = gbm_surface_create(gbm, 400, 300, GBM_BO_FORMAT_ARGB8888, GBM_BO_USE_RENDERING);
BeginDraw();
DrawWindow(20, 20, 400+9, 300+24, "gl-render", 0x000000, 0x74);
EndDraw();
surface = eglCreateWindowSurface(dpy,config, (EGLNativeWindowType)gs, NULL);
if (surface == EGL_NO_SURFACE)
printf("failed to create surface");
if (!eglMakeCurrent(dpy, surface, surface, context))
printf("failed to make window current");
glClearColor( 0, 0, 0, 1);
list = glGenLists(1);
glNewList(list, GL_COMPILE);
/* XXX: this state-change will only be executed if list is called
* from outside a begin/end pair:
*/
glShadeModel( GL_FLAT );
glBegin(GL_TRIANGLES);
glColor3f(0,0,.7);
glVertex3f( -0.9, 0.9, -30.0);
glColor3f(0,.9,0);
glVertex3f( -0.9, -0.9, -30.0);
glColor3f(.8,0,0);
glVertex3f( 0.9, 0.0, -30.0);
glEnd();
/* This statechange is potentially NOT redundant:
*/
glShadeModel( GL_FLAT );
glBegin(GL_TRIANGLES);
glColor3f(0,1,0);
glVertex3f( -0.5, 0.5, -30.0);
glColor3f(0,0,1);
glVertex3f( -0.5, -0.5, -30.0);
glColor3f(1,0,0);
glVertex3f( 0.5, 0.0, -30.0);
glEnd();
glEndList();
glDrawBuffer(GL_BACK);
glViewport(0, 0, (GLint)400, (GLint)300);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
glMatrixMode(GL_MODELVIEW);
asm volatile ("int3");
// glClear(GL_COLOR_BUFFER_BIT);
glShadeModel( GL_SMOOTH );
glBegin(GL_TRIANGLES);
/* Note: call the list from inside a begin/end pair. The end is
* provided by the display list...
*/
glCallList(list);
glFlush();
asm volatile ("int3");
eglSwapBuffers(dpy, surface);
glFinish();
eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface(dpy, surface);
gbm_surface_destroy(gs);
eglDestroyContext(dpy, context);
eglTerminate(dpy);
while(1)
{
delay(1);
}
return 0;
}