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C++ Evas_GL_API::glClear方法代码示例

本文整理汇总了C++中Evas_GL_API::glClear方法的典型用法代码示例。如果您正苦于以下问题:C++ Evas_GL_API::glClear方法的具体用法?C++ Evas_GL_API::glClear怎么用?C++ Evas_GL_API::glClear使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Evas_GL_API的用法示例。


在下文中一共展示了Evas_GL_API::glClear方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1:

// draw callback is where all the main GL rendering happens
static void
_draw_gl(Evas_Object *obj)
{
   Evas_GL_API *gl = elm_glview_gl_api_get(obj);
   GLData *gld = evas_object_data_get(obj, "gld");

   if (!gld) return;
   int w, h;

   elm_glview_size_get(obj, &w, &h);

   gl->glViewport(0, 0, w, h);
   gl->glClearColor(red, 0.8, 0.3, 1);
   gl->glClear(GL_COLOR_BUFFER_BIT);

   // Draw a Triangle
   gl->glEnable(GL_BLEND);

   gl->glUseProgram(gld->program);

   gl->glBindBuffer(GL_ARRAY_BUFFER, gld->vbo);
   gl->glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
   gl->glEnableVertexAttribArray(0);

   gl->glDrawArrays(GL_TRIANGLES, 0, 3);

   // Optional - Flush the GL pipeline
   gl->glFinish();

   red -= 0.1;
   if (0.0 > red) red = 1.0;
}
开发者ID:mknapinski,项目名称:eail,代码行数:33,代码来源:eail_glview_tc1.c

示例2: createGLSurface

bool EwkView::createGLSurface()
{
    if (!m_isAccelerated)
        return true;

    static Evas_GL_Config evasGLConfig = {
        EVAS_GL_RGBA_8888,
        EVAS_GL_DEPTH_BIT_8,
        EVAS_GL_STENCIL_NONE,
        EVAS_GL_OPTIONS_NONE,
        EVAS_GL_MULTISAMPLE_NONE,
#if defined(EVAS_GL_API_VERSION) && EVAS_GL_API_VERSION >= 2
        EVAS_GL_GLES_2_X
#endif
    };

    // Recreate to current size: Replaces if non-null, and frees existing surface after (OwnPtr).
    if (deviceSize().width() && deviceSize().height()) {
        Evas_GL_Surface* surface = nullptr;
        surface = evas_gl_surface_create(m_evasGL, &evasGLConfig, deviceSize().width(), deviceSize().height());
        if (!surface)
            return false;

        m_evasGLSurface = std::make_unique<EvasGLSurface>(m_evasGL, surface);
    }

    if (!m_evasGLSurface)
        return false;

    Evas_Native_Surface nativeSurface;
    evas_gl_native_surface_get(m_evasGL, m_evasGLSurface->surface(), &nativeSurface);
    evas_object_image_native_surface_set(smartData()->image, &nativeSurface);

    evas_gl_make_current(m_evasGL, m_evasGLSurface->surface(), m_evasGLContext->context());

    Evas_GL_API* gl = evas_gl_api_get(m_evasGL);

    WKPoint boundsEnd = WKViewUserViewportToScene(wkView(), WKPointMake(deviceSize().width(), deviceSize().height()));
    gl->glViewport(0, 0, boundsEnd.x, boundsEnd.y);
    gl->glClearColor(1.0, 1.0, 1.0, 0);
    gl->glClear(GL_COLOR_BUFFER_BIT);

    return true;
}
开发者ID:reaven15,项目名称:webkit,代码行数:44,代码来源:EwkView.cpp

示例3: memcpy

static void
gears_draw(GLData *gld)
{
   Evas_GL_API *gl = gld->glapi;

   static const GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
   static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
   static const GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
   GLfloat m[16];

   gl->glClearColor(0.8, 0.8, 0.1, 0.5);
   gl->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

   memcpy(m, gld->proj, sizeof m);
   rotate(m, 2 * M_PI * gld->view_rotx / 360.0, 1, 0, 0);
   rotate(m, 2 * M_PI * gld->view_roty / 360.0, 0, 1, 0);
   rotate(m, 2 * M_PI * gld->view_rotz / 360.0, 0, 0, 1);

   draw_gear(gld, gld->gear1, m, -3.0, -2.0, gld->angle, red);
   draw_gear(gld, gld->gear2, m, 3.1, -2.0, -2 * gld->angle - 9.0, green);
   draw_gear(gld, gld->gear3, m, -3.1, 4.2, -2 * gld->angle - 25.0, blue);
}
开发者ID:maikodaraine,项目名称:EnlightenmentUbuntu,代码行数:22,代码来源:test_glview.c


注:本文中的Evas_GL_API::glClear方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。