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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4502 | Serge | 1 | #include |
| 2 | #include |
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| 3 | #include |
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| 4 | #include |
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| 5 | |||
| 6 | #include "render.h" |
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| 7 | #include |
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| 8 | #include |
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| 9 | |||
| 4517 | Serge | 10 | void create_mask(struct render *render); |
| 4502 | Serge | 11 | |
| 12 | static int drm_ioctl(int fd, unsigned long request, void *arg) |
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| 13 | { |
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| 14 | ioctl_t io; |
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| 15 | |||
| 16 | io.handle = fd; |
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| 17 | io.io_code = request; |
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| 18 | io.input = arg; |
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| 19 | io.inp_size = 64; |
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| 20 | io.output = NULL; |
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| 21 | io.out_size = 0; |
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| 22 | |||
| 23 | return call_service(&io); |
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| 24 | } |
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| 25 | |||
| 26 | static EGLImageKHR px_create_image(EGLDisplay display, EGLContext context, |
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| 27 | int width, int height, int stride, int name) |
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| 28 | { |
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| 29 | EGLImageKHR image; |
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| 30 | EGLint attribs[] = { |
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| 31 | EGL_WIDTH, 0, |
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| 32 | EGL_HEIGHT, 0, |
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| 33 | EGL_DRM_BUFFER_STRIDE_MESA, 0, |
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| 34 | EGL_DRM_BUFFER_FORMAT_MESA, |
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| 35 | EGL_DRM_BUFFER_FORMAT_ARGB32_MESA, |
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| 36 | EGL_DRM_BUFFER_USE_MESA, |
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| 37 | EGL_DRM_BUFFER_USE_SHARE_MESA | |
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| 38 | EGL_DRM_BUFFER_USE_SCANOUT_MESA, |
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| 39 | EGL_NONE |
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| 40 | }; |
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| 41 | attribs[1] = width; |
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| 42 | attribs[3] = height; |
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| 43 | attribs[5] = stride/4; |
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| 44 | |||
| 45 | printf("%s w:%d :%d pitch:%d handle %d\n", __FUNCTION__, |
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| 46 | width, height, stride, name); |
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| 47 | |||
| 48 | image = eglCreateImageKHR(display, context, EGL_DRM_BUFFER_MESA, |
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| 49 | (void *) (uintptr_t)name, attribs); |
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| 50 | |||
| 51 | return image; |
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| 52 | } |
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| 53 | |||
| 54 | static GLint create_shader(GLenum type, const char *source) |
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| 55 | { |
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| 56 | GLint ok; |
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| 57 | GLint shader; |
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| 58 | |||
| 59 | shader = glCreateShader(type); |
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| 60 | if(shader == 0) |
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| 61 | goto err; |
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| 62 | |||
| 63 | glShaderSource(shader, 1, (const GLchar **) &source, NULL); |
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| 64 | glCompileShader(shader); |
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| 65 | glGetShaderiv(shader, GL_COMPILE_STATUS, &ok); |
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| 66 | if (!ok) { |
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| 67 | GLchar *info; |
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| 68 | GLint size; |
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| 69 | |||
| 70 | glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &size); |
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| 71 | info = malloc(size); |
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| 72 | |||
| 73 | glGetShaderInfoLog(shader, size, NULL, info); |
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| 74 | printf("Failed to compile %s: %s\n", |
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| 75 | type == GL_FRAGMENT_SHADER ? "FS" : "VS",info); |
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| 76 | printf("Program source:\n%s", source); |
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| 77 | printf("GLSL compile failure\n"); |
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| 78 | free(info); |
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| 79 | glDeleteProgram(shader); |
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| 80 | shader = 0; |
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| 81 | } |
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| 82 | err: |
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| 83 | return shader; |
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| 84 | } |
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| 85 | |||
| 86 | |||
| 87 | struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy) |
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| 88 | { |
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| 89 | const char *vs_src = |
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| 90 | "attribute vec4 v_position;\n" |
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| 91 | "attribute vec4 v_texcoord0;\n" |
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| 92 | "varying vec2 source_texture;\n" |
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| 93 | "void main()\n" |
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| 94 | "{\n" |
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| 95 | " gl_Position = v_position;\n" |
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| 96 | " source_texture = v_texcoord0.xy;\n" |
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| 97 | "}\n"; |
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| 98 | |||
| 99 | const char *fs_src = |
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| 100 | // "precision mediump float;\n" |
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| 101 | "varying vec2 source_texture;\n" |
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| 102 | "uniform sampler2D sampler;\n" |
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| 103 | "void main()\n" |
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| 104 | "{\n" |
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| 105 | " vec3 cg = texture2D(sampler, source_texture).rgb;\n" |
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| 106 | " gl_FragColor = vec4(cg.r,cg.g,cg.b,1.0);\n" |
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| 107 | "}\n"; |
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| 108 | EGLint config_attribs[14]; |
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| 109 | EGLConfig config; |
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| 110 | EGLint num_configs; |
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| 111 | |||
| 112 | EGLContext context; |
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| 113 | |||
| 114 | struct drm_i915_fb_info fb; |
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| 115 | GLint vs_shader, fs_shader; |
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| 116 | GLenum status; |
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| 117 | GLint ret; |
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| 118 | int fd; |
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| 119 | struct render *render; |
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| 120 | |||
| 121 | |||
| 122 | fd = get_service("DISPLAY"); |
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| 123 | |||
| 124 | memset(&fb, 0, sizeof(fb)); |
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| 125 | ret = drm_ioctl(fd, SRV_FBINFO, &fb); |
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| 126 | if( ret != 0 ) |
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| 127 | { printf("failed to get framebuffer info\n"); |
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| 128 | goto err; |
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| 129 | }; |
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| 130 | |||
| 131 | render = (struct render*)malloc(sizeof(struct render)); |
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| 132 | if(render == NULL) |
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| 133 | goto err; |
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| 134 | |||
| 135 | render->fd = fd; |
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| 136 | render->dpy = dpy; |
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| 137 | render->dx = dx; |
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| 138 | render->dy = dy; |
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| 139 | |||
| 140 | if(!eglQuerySurface(dpy, surface, EGL_WIDTH, &render->width)) |
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| 141 | goto err1; |
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| 142 | |||
| 143 | if(!eglQuerySurface(dpy, surface, EGL_HEIGHT, &render->height)) |
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| 144 | goto err1; |
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| 145 | |||
| 146 | render->scr_width = fb.width; |
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| 147 | render->scr_height = fb.height; |
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| 148 | |||
| 149 | render->front = eglGetBufferImage(dpy, surface, EGL_DRM_BUFFER_FRONT); |
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| 150 | if(render->front == EGL_NO_IMAGE_KHR) |
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| 151 | goto err1; |
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| 152 | |||
| 153 | render->back = eglGetBufferImage(dpy, surface, EGL_DRM_BUFFER_BACK); |
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| 154 | if( render->back == EGL_NO_IMAGE_KHR) |
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| 155 | goto err2; |
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| 156 | |||
| 157 | |||
| 158 | context = eglGetCurrentContext(); |
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| 159 | |||
| 160 | config_attribs[0] = EGL_RED_SIZE; |
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| 161 | config_attribs[1] = 1; |
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| 162 | config_attribs[2] = EGL_GREEN_SIZE; |
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| 163 | config_attribs[3] = 1; |
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| 164 | config_attribs[4] = EGL_BLUE_SIZE; |
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| 165 | config_attribs[5] = 1; |
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| 166 | config_attribs[6] = EGL_DEPTH_SIZE; |
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| 167 | config_attribs[7] = 1; |
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| 168 | |||
| 169 | config_attribs[8] = EGL_SURFACE_TYPE; |
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| 170 | config_attribs[9] = EGL_WINDOW_BIT; |
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| 171 | |||
| 172 | config_attribs[10] = EGL_RENDERABLE_TYPE; |
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| 173 | config_attribs[11] = EGL_OPENGL_BIT; |
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| 174 | config_attribs[12] = EGL_NONE; |
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| 175 | |||
| 176 | if (!eglChooseConfig(dpy,config_attribs, &config, 1, &num_configs) || !num_configs) |
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| 177 | { |
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| 178 | printf("failed to choose a config"); |
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| 179 | goto err3; |
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| 180 | } |
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| 181 | |||
| 182 | render->context = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL); |
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| 183 | if (!context) |
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| 184 | { |
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| 185 | printf("failed to create context"); |
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| 186 | goto err3; |
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| 187 | }; |
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| 188 | |||
| 189 | if (!eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, render->context)) |
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| 190 | { |
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| 191 | printf("failed to make window current"); |
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| 192 | goto err4; |
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| 193 | }; |
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| 194 | |||
| 195 | |||
| 196 | glGenTextures(2, render->tx_buffers); |
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| 197 | if(glGetError() != GL_NO_ERROR) |
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| 198 | goto err5; |
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| 199 | |||
| 200 | glBindTexture(GL_TEXTURE_2D, render->tx_buffers[EGL_DRM_BUFFER_FRONT]); |
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| 201 | if(glGetError() != GL_NO_ERROR) |
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| 202 | goto err6; |
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| 203 | |||
| 204 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 205 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 206 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->front); |
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| 207 | if(glGetError() != GL_NO_ERROR) |
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| 208 | goto err6; |
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| 209 | |||
| 210 | glBindTexture(GL_TEXTURE_2D, render->tx_buffers[EGL_DRM_BUFFER_BACK]); |
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| 211 | if(glGetError() != GL_NO_ERROR) |
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| 212 | goto err6; |
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| 213 | |||
| 214 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 215 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 216 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->back); |
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| 217 | if(glGetError() != GL_NO_ERROR) |
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| 218 | goto err6; |
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| 219 | |||
| 220 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 221 | |||
| 222 | render->back_buffer = EGL_DRM_BUFFER_BACK; |
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| 223 | |||
| 224 | |||
| 225 | render->screen = px_create_image(dpy,context,fb.width,fb.height, |
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| 226 | fb.pitch,fb.name); |
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| 227 | if(render->screen == EGL_NO_IMAGE_KHR) |
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| 228 | goto err6; |
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| 229 | |||
| 230 | glGenTextures(1, &render->tx_screen); |
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| 231 | if(glGetError() != GL_NO_ERROR) |
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| 232 | goto err6; |
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| 233 | |||
| 234 | glBindTexture(GL_TEXTURE_2D, render->tx_screen); |
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| 235 | if(glGetError() != GL_NO_ERROR) |
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| 236 | goto err7; |
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| 237 | |||
| 238 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 239 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 240 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->screen); |
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| 241 | if(glGetError() != GL_NO_ERROR) |
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| 242 | goto err7; |
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| 243 | |||
| 244 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 245 | |||
| 4517 | Serge | 246 | create_mask(render); |
| 247 | |||
| 4502 | Serge | 248 | glGenFramebuffers(1, &render->framebuffer); |
| 249 | if(glGetError() != GL_NO_ERROR) |
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| 250 | goto err8; |
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| 251 | |||
| 252 | glBindFramebuffer(GL_FRAMEBUFFER, render->framebuffer); |
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| 253 | if(glGetError() != GL_NO_ERROR) |
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| 254 | goto err9; |
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| 255 | |||
| 256 | glFramebufferTexture2D(GL_FRAMEBUFFER,GL_COLOR_ATTACHMENT0, |
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| 257 | GL_TEXTURE_2D, render->tx_screen,0); |
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| 258 | |||
| 259 | status = glCheckFramebufferStatus(GL_FRAMEBUFFER); |
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| 260 | if (status != GL_FRAMEBUFFER_COMPLETE) |
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| 261 | { |
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| 262 | const char *str; |
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| 263 | switch (status) |
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| 264 | { |
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| 265 | case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: |
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| 266 | str = "incomplete attachment"; |
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| 267 | break; |
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| 268 | case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: |
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| 269 | str = "incomplete/missing attachment"; |
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| 270 | break; |
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| 271 | case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER: |
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| 272 | str = "incomplete draw buffer"; |
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| 273 | break; |
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| 274 | case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER: |
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| 275 | str = "incomplete read buffer"; |
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| 276 | break; |
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| 277 | case GL_FRAMEBUFFER_UNSUPPORTED: |
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| 278 | str = "unsupported"; |
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| 279 | break; |
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| 280 | case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: |
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| 281 | str = "incomplete multiple"; |
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| 282 | break; |
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| 283 | default: |
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| 284 | str = "unknown error"; |
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| 285 | break; |
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| 286 | } |
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| 287 | printf("destination is framebuffer incomplete: %s [%#x]\n", str, status); |
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| 288 | goto err9; |
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| 289 | } |
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| 290 | |||
| 291 | glViewport(0, 0, render->scr_width, render->scr_height); |
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| 292 | glMatrixMode(GL_PROJECTION); |
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| 293 | glLoadIdentity(); |
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| 294 | glMatrixMode(GL_MODELVIEW); |
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| 295 | glLoadIdentity(); |
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| 296 | |||
| 297 | render->blit_prog = glCreateProgram(); |
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| 298 | if(render->blit_prog == 0) |
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| 299 | goto err9; |
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| 300 | |||
| 301 | vs_shader = create_shader(GL_VERTEX_SHADER,vs_src); |
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| 302 | if(vs_shader == 0) |
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| 303 | goto err10; |
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| 304 | |||
| 305 | fs_shader = create_shader(GL_FRAGMENT_SHADER, fs_src); |
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| 306 | if(fs_shader == 0) |
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| 307 | goto err11; |
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| 308 | |||
| 309 | glAttachShader(render->blit_prog, vs_shader); |
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| 310 | glAttachShader(render->blit_prog, fs_shader); |
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| 311 | glBindAttribLocation(render->blit_prog, 0, "v_position"); |
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| 312 | glBindAttribLocation(render->blit_prog, 1, "v_texcoord0"); |
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| 313 | |||
| 314 | glLinkProgram(render->blit_prog); |
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| 315 | glGetProgramiv(render->blit_prog, GL_LINK_STATUS, &ret); |
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| 316 | if (!ret) |
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| 317 | { |
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| 318 | GLchar *info; |
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| 319 | GLint size; |
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| 320 | |||
| 321 | glGetProgramiv(render->blit_prog, GL_INFO_LOG_LENGTH, &size); |
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| 322 | info = malloc(size); |
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| 323 | |||
| 324 | glGetProgramInfoLog(render->blit_prog, size, NULL, info); |
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| 325 | printf("Failed to link: %s\n", info); |
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| 326 | printf("GLSL link failure\n"); |
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| 327 | free(info); |
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| 328 | } |
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| 329 | |||
| 330 | render->sampler = glGetUniformLocation(render->blit_prog,"sampler"); |
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| 331 | |||
| 4517 | Serge | 332 | glUseProgram(render->blit_prog); |
| 333 | glUniform1i(render->sampler, 0); |
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| 334 | |||
| 335 | glVertexAttribPointer(0, 2, GL_FLOAT,GL_FALSE, 2 * sizeof(float),render->vertices); |
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| 336 | glEnableVertexAttribArray(0); |
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| 337 | |||
| 338 | glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->texcoords); |
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| 339 | glEnableVertexAttribArray(1); |
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| 340 | |||
| 4502 | Serge | 341 | eglMakeCurrent(dpy, surface, surface, context); |
| 342 | |||
| 343 | return render; |
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| 344 | |||
| 345 | err11: |
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| 346 | glDeleteShader(vs_shader); |
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| 347 | err10: |
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| 348 | glDeleteProgram(render->blit_prog); |
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| 349 | err9: |
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| 350 | glDeleteFramebuffers(1, &render->framebuffer); |
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| 351 | err8: |
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| 352 | eglDestroyImageKHR(dpy, render->screen); |
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| 353 | err7: |
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| 354 | glDeleteTextures(1, &render->tx_screen); |
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| 355 | err6: |
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| 356 | glDeleteTextures(2, render->tx_buffers); |
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| 357 | err5: |
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| 358 | eglMakeCurrent(dpy, surface, surface, context); |
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| 359 | err4: |
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| 360 | eglDestroyContext(dpy, render->context); |
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| 361 | err3: |
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| 362 | eglDestroyImageKHR(dpy, render->back); |
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| 363 | err2: |
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| 364 | eglDestroyImageKHR(dpy, render->front); |
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| 365 | err1: |
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| 366 | free(render); |
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| 367 | err: |
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| 368 | return NULL; |
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| 369 | }; |
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| 370 | |||
| 371 | |||
| 372 | |||
| 4517 | Serge | 373 | |
| 374 | void create_mask(struct render *render) |
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| 375 | { |
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| 376 | static EGLint attrib[] = |
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| 377 | { |
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| 378 | EGL_GL_TEXTURE_LEVEL_KHR, 0, |
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| 379 | EGL_NONE |
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| 380 | }; |
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| 381 | struct drm_i915_gem_mmap mmap_arg; |
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| 382 | EGLint handle, stride; |
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| 383 | int pitch; |
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| 384 | void *data; |
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| 385 | |||
| 386 | glGenTextures(1, &render->tx_mask); |
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| 387 | if(glGetError() != GL_NO_ERROR) |
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| 388 | goto err1; |
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| 389 | |||
| 390 | glBindTexture(GL_TEXTURE_2D, render->tx_mask); |
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| 391 | if(glGetError() != GL_NO_ERROR) |
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| 392 | goto err2; |
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| 393 | |||
| 394 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 395 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 396 | |||
| 397 | pitch = (render->width+3) & -4; |
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| 398 | |||
| 399 | data = user_alloc(pitch*render->height); |
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| 400 | |||
| 401 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, render->width, render->height, 0, |
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| 402 | GL_RED,GL_UNSIGNED_BYTE, data); |
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| 403 | |||
| 404 | user_free(data); |
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| 405 | |||
| 406 | if(glGetError() != GL_NO_ERROR) |
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| 407 | goto err2; |
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| 408 | |||
| 409 | render->mask = eglCreateImageKHR(render->dpy, render->context, |
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| 410 | EGL_GL_TEXTURE_2D_KHR,(EGLClientBuffer)render->tx_mask,attrib); |
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| 411 | |||
| 412 | if(render->mask == EGL_NO_IMAGE_KHR) |
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| 413 | goto err2; |
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| 414 | |||
| 415 | if(!eglExportDRMImageMESA(render->dpy, render->mask, NULL, &handle, &stride)) |
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| 416 | goto err3; |
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| 417 | |||
| 418 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 419 | |||
| 420 | mmap_arg.handle = handle; |
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| 421 | mmap_arg.offset = 0; |
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| 422 | mmap_arg.size = stride * render->height; |
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| 423 | if (drm_ioctl(render->fd, DRM_IOCTL_I915_GEM_MMAP, &mmap_arg)) |
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| 424 | { |
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| 425 | printf("%s: failed to mmap image %p handle=%d, %d bytes, into CPU domain\n", |
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| 426 | __FUNCTION__, render->mask, handle, stride*render->height); |
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| 427 | goto err3; |
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| 428 | } |
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| 429 | |||
| 430 | render->mask_buffer = (void *)(uintptr_t)mmap_arg.addr_ptr; |
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| 431 | |||
| 432 | printf("%s: mmap image %p handle=%d, %d bytes to %p\n", |
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| 433 | __FUNCTION__, render->mask, handle, stride*render->height, render->mask_buffer); |
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| 434 | |||
| 435 | return; |
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| 436 | |||
| 437 | err3: |
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| 438 | eglDestroyImageKHR(render->dpy, render->mask); |
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| 439 | err2: |
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| 440 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 441 | err1: |
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| 442 | glDeleteTextures(1, &render->tx_mask); |
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| 443 | }; |