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