C++ (Cpp) ScreenRectVertexの例

コード例 #1

ファイル: renderer_opengl.cpp プロジェクト: HackerTon/citra

/**
 * Draws a single texture to the emulator window, rotating the texture to correct for the 3DS's LCD rotation.
 */
void RendererOpenGL::DrawSingleScreenRotated(const TextureInfo& texture, float x, float y, float w, float h) {
    std::array<ScreenRectVertex, 4> vertices = {
        ScreenRectVertex(x,   y,   1.f, 0.f),
        ScreenRectVertex(x+w, y,   1.f, 1.f),
        ScreenRectVertex(x,   y+h, 0.f, 0.f),
        ScreenRectVertex(x+w, y+h, 0.f, 1.f),
    };

    glBindTexture(GL_TEXTURE_2D, texture.handle);
    glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer_handle);
    glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices.data());
    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}

コード例 #2

ファイル: renderer_opengl.cpp プロジェクト: JackWu-SiHao/citra

/**
 * Draws a single texture to the emulator window, rotating the texture to correct for the 3DS's LCD rotation.
 */
void RendererOpenGL::DrawSingleScreenRotated(const TextureInfo& texture, float x, float y, float w, float h) {
    std::array<ScreenRectVertex, 4> vertices = {{
        ScreenRectVertex(x,   y,   1.f, 0.f),
        ScreenRectVertex(x+w, y,   1.f, 1.f),
        ScreenRectVertex(x,   y+h, 0.f, 0.f),
        ScreenRectVertex(x+w, y+h, 0.f, 1.f),
    }};

    state.texture_units[0].texture_2d = texture.handle;
    state.Apply();

    glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices.data());
    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}