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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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| 4523 | Serge | 92 | "attribute vec4 v_texcoord1;\n" |
| 4502 | Serge | 93 | "varying vec2 source_texture;\n" |
| 4523 | Serge | 94 | "varying vec2 mask_texture;\n" |
| 95 | "void main()\n" |
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| 4502 | Serge | 96 | "{\n" |
| 97 | " gl_Position = v_position;\n" |
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| 98 | " source_texture = v_texcoord0.xy;\n" |
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| 4523 | Serge | 99 | " mask_texture = v_texcoord1.xy;\n" |
| 4502 | Serge | 100 | "}\n"; |
| 101 | |||
| 102 | const char *fs_src = |
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| 103 | "varying vec2 source_texture;\n" |
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| 4523 | Serge | 104 | "varying vec2 mask_texture;\n" |
| 105 | "uniform sampler2D sampler_src;\n" |
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| 106 | "uniform sampler2D sampler_mask;\n" |
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| 4502 | Serge | 107 | "void main()\n" |
| 108 | "{\n" |
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| 4523 | Serge | 109 | " float ca = texture2D(sampler_mask, mask_texture).r;\n" |
| 110 | " gl_FragColor = vec4(texture2D(sampler_src, source_texture).rgb, ca);\n" |
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| 4502 | Serge | 111 | "}\n"; |
| 4523 | Serge | 112 | |
| 4502 | Serge | 113 | EGLint config_attribs[14]; |
| 114 | EGLConfig config; |
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| 115 | EGLint num_configs; |
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| 116 | |||
| 117 | EGLContext context; |
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| 118 | |||
| 119 | struct drm_i915_fb_info fb; |
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| 120 | GLint vs_shader, fs_shader; |
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| 121 | GLenum status; |
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| 122 | GLint ret; |
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| 123 | int fd; |
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| 124 | struct render *render; |
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| 125 | |||
| 126 | |||
| 127 | fd = get_service("DISPLAY"); |
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| 128 | |||
| 129 | memset(&fb, 0, sizeof(fb)); |
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| 130 | ret = drm_ioctl(fd, SRV_FBINFO, &fb); |
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| 131 | if( ret != 0 ) |
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| 132 | { printf("failed to get framebuffer info\n"); |
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| 133 | goto err; |
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| 134 | }; |
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| 135 | |||
| 136 | render = (struct render*)malloc(sizeof(struct render)); |
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| 137 | if(render == NULL) |
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| 138 | goto err; |
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| 139 | |||
| 140 | render->fd = fd; |
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| 141 | render->dpy = dpy; |
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| 142 | render->dx = dx; |
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| 143 | render->dy = dy; |
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| 144 | |||
| 145 | if(!eglQuerySurface(dpy, surface, EGL_WIDTH, &render->width)) |
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| 146 | goto err1; |
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| 147 | |||
| 148 | if(!eglQuerySurface(dpy, surface, EGL_HEIGHT, &render->height)) |
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| 149 | goto err1; |
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| 150 | |||
| 151 | render->scr_width = fb.width; |
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| 152 | render->scr_height = fb.height; |
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| 153 | |||
| 154 | render->front = eglGetBufferImage(dpy, surface, EGL_DRM_BUFFER_FRONT); |
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| 155 | if(render->front == EGL_NO_IMAGE_KHR) |
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| 156 | goto err1; |
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| 157 | |||
| 158 | render->back = eglGetBufferImage(dpy, surface, EGL_DRM_BUFFER_BACK); |
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| 159 | if( render->back == EGL_NO_IMAGE_KHR) |
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| 160 | goto err2; |
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| 161 | |||
| 162 | |||
| 163 | context = eglGetCurrentContext(); |
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| 164 | |||
| 165 | config_attribs[0] = EGL_RED_SIZE; |
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| 166 | config_attribs[1] = 1; |
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| 167 | config_attribs[2] = EGL_GREEN_SIZE; |
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| 168 | config_attribs[3] = 1; |
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| 169 | config_attribs[4] = EGL_BLUE_SIZE; |
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| 170 | config_attribs[5] = 1; |
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| 171 | config_attribs[6] = EGL_DEPTH_SIZE; |
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| 172 | config_attribs[7] = 1; |
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| 173 | |||
| 174 | config_attribs[8] = EGL_SURFACE_TYPE; |
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| 175 | config_attribs[9] = EGL_WINDOW_BIT; |
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| 176 | |||
| 177 | config_attribs[10] = EGL_RENDERABLE_TYPE; |
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| 178 | config_attribs[11] = EGL_OPENGL_BIT; |
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| 179 | config_attribs[12] = EGL_NONE; |
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| 180 | |||
| 181 | if (!eglChooseConfig(dpy,config_attribs, &config, 1, &num_configs) || !num_configs) |
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| 182 | { |
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| 183 | printf("failed to choose a config"); |
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| 184 | goto err3; |
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| 185 | } |
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| 186 | |||
| 187 | render->context = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL); |
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| 188 | if (!context) |
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| 189 | { |
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| 190 | printf("failed to create context"); |
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| 191 | goto err3; |
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| 192 | }; |
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| 193 | |||
| 194 | if (!eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, render->context)) |
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| 195 | { |
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| 196 | printf("failed to make window current"); |
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| 197 | goto err4; |
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| 198 | }; |
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| 199 | |||
| 200 | |||
| 201 | glGenTextures(2, render->tx_buffers); |
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| 202 | if(glGetError() != GL_NO_ERROR) |
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| 203 | goto err5; |
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| 204 | |||
| 205 | glBindTexture(GL_TEXTURE_2D, render->tx_buffers[EGL_DRM_BUFFER_FRONT]); |
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| 206 | if(glGetError() != GL_NO_ERROR) |
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| 207 | goto err6; |
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| 208 | |||
| 209 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 210 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 211 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->front); |
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| 212 | if(glGetError() != GL_NO_ERROR) |
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| 213 | goto err6; |
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| 214 | |||
| 215 | glBindTexture(GL_TEXTURE_2D, render->tx_buffers[EGL_DRM_BUFFER_BACK]); |
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| 216 | if(glGetError() != GL_NO_ERROR) |
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| 217 | goto err6; |
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| 218 | |||
| 219 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 220 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 221 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->back); |
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| 222 | if(glGetError() != GL_NO_ERROR) |
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| 223 | goto err6; |
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| 224 | |||
| 225 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 226 | |||
| 227 | render->back_buffer = EGL_DRM_BUFFER_BACK; |
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| 228 | |||
| 229 | |||
| 230 | render->screen = px_create_image(dpy,context,fb.width,fb.height, |
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| 231 | fb.pitch,fb.name); |
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| 232 | if(render->screen == EGL_NO_IMAGE_KHR) |
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| 233 | goto err6; |
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| 234 | |||
| 235 | glGenTextures(1, &render->tx_screen); |
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| 236 | if(glGetError() != GL_NO_ERROR) |
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| 237 | goto err6; |
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| 238 | |||
| 239 | glBindTexture(GL_TEXTURE_2D, render->tx_screen); |
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| 240 | if(glGetError() != GL_NO_ERROR) |
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| 241 | goto err7; |
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| 242 | |||
| 243 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 244 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 245 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->screen); |
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| 246 | if(glGetError() != GL_NO_ERROR) |
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| 247 | goto err7; |
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| 248 | |||
| 249 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 250 | |||
| 4517 | Serge | 251 | create_mask(render); |
| 252 | |||
| 4502 | Serge | 253 | glGenFramebuffers(1, &render->framebuffer); |
| 254 | if(glGetError() != GL_NO_ERROR) |
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| 255 | goto err8; |
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| 256 | |||
| 257 | glBindFramebuffer(GL_FRAMEBUFFER, render->framebuffer); |
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| 258 | if(glGetError() != GL_NO_ERROR) |
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| 259 | goto err9; |
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| 260 | |||
| 261 | glFramebufferTexture2D(GL_FRAMEBUFFER,GL_COLOR_ATTACHMENT0, |
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| 262 | GL_TEXTURE_2D, render->tx_screen,0); |
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| 263 | |||
| 264 | status = glCheckFramebufferStatus(GL_FRAMEBUFFER); |
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| 265 | if (status != GL_FRAMEBUFFER_COMPLETE) |
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| 266 | { |
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| 267 | const char *str; |
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| 268 | switch (status) |
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| 269 | { |
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| 270 | case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: |
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| 271 | str = "incomplete attachment"; |
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| 272 | break; |
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| 273 | case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: |
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| 274 | str = "incomplete/missing attachment"; |
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| 275 | break; |
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| 276 | case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER: |
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| 277 | str = "incomplete draw buffer"; |
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| 278 | break; |
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| 279 | case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER: |
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| 280 | str = "incomplete read buffer"; |
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| 281 | break; |
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| 282 | case GL_FRAMEBUFFER_UNSUPPORTED: |
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| 283 | str = "unsupported"; |
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| 284 | break; |
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| 285 | case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: |
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| 286 | str = "incomplete multiple"; |
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| 287 | break; |
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| 288 | default: |
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| 289 | str = "unknown error"; |
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| 290 | break; |
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| 291 | } |
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| 292 | printf("destination is framebuffer incomplete: %s [%#x]\n", str, status); |
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| 293 | goto err9; |
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| 294 | } |
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| 295 | |||
| 296 | glViewport(0, 0, render->scr_width, render->scr_height); |
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| 297 | glMatrixMode(GL_PROJECTION); |
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| 298 | glLoadIdentity(); |
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| 299 | glMatrixMode(GL_MODELVIEW); |
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| 300 | glLoadIdentity(); |
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| 301 | |||
| 302 | render->blit_prog = glCreateProgram(); |
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| 303 | if(render->blit_prog == 0) |
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| 304 | goto err9; |
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| 305 | |||
| 306 | vs_shader = create_shader(GL_VERTEX_SHADER,vs_src); |
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| 307 | if(vs_shader == 0) |
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| 308 | goto err10; |
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| 309 | |||
| 310 | fs_shader = create_shader(GL_FRAGMENT_SHADER, fs_src); |
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| 311 | if(fs_shader == 0) |
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| 312 | goto err11; |
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| 313 | |||
| 314 | glAttachShader(render->blit_prog, vs_shader); |
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| 315 | glAttachShader(render->blit_prog, fs_shader); |
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| 316 | glBindAttribLocation(render->blit_prog, 0, "v_position"); |
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| 317 | glBindAttribLocation(render->blit_prog, 1, "v_texcoord0"); |
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| 4523 | Serge | 318 | glBindAttribLocation(render->blit_prog, 2, "v_texcoord1"); |
| 4502 | Serge | 319 | |
| 320 | glLinkProgram(render->blit_prog); |
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| 321 | glGetProgramiv(render->blit_prog, GL_LINK_STATUS, &ret); |
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| 322 | if (!ret) |
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| 323 | { |
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| 324 | GLchar *info; |
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| 325 | GLint size; |
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| 326 | |||
| 327 | glGetProgramiv(render->blit_prog, GL_INFO_LOG_LENGTH, &size); |
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| 328 | info = malloc(size); |
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| 329 | |||
| 330 | glGetProgramInfoLog(render->blit_prog, size, NULL, info); |
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| 331 | printf("Failed to link: %s\n", info); |
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| 332 | printf("GLSL link failure\n"); |
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| 333 | free(info); |
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| 334 | } |
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| 335 | |||
| 4523 | Serge | 336 | render->sampler = glGetUniformLocation(render->blit_prog,"sampler_src"); |
| 337 | render->sm_mask = glGetUniformLocation(render->blit_prog,"sampler_mask"); |
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| 4502 | Serge | 338 | |
| 4517 | Serge | 339 | glUseProgram(render->blit_prog); |
| 340 | glUniform1i(render->sampler, 0); |
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| 4523 | Serge | 341 | glUniform1i(render->sm_mask, 1); |
| 4517 | Serge | 342 | |
| 343 | glVertexAttribPointer(0, 2, GL_FLOAT,GL_FALSE, 2 * sizeof(float),render->vertices); |
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| 344 | glEnableVertexAttribArray(0); |
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| 345 | |||
| 4523 | Serge | 346 | glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_src); |
| 4517 | Serge | 347 | glEnableVertexAttribArray(1); |
| 348 | |||
| 4523 | Serge | 349 | glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_mask); |
| 350 | glEnableVertexAttribArray(2); |
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| 351 | |||
| 352 | glEnable(GL_BLEND); |
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| 353 | glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA); |
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| 354 | |||
| 355 | glActiveTexture(GL_TEXTURE1); |
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| 356 | glBindTexture(GL_TEXTURE_2D, render->tx_mask); |
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| 357 | glTexParameteri(GL_TEXTURE_2D, |
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| 358 | GL_TEXTURE_MIN_FILTER, |
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| 359 | GL_NEAREST); |
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| 360 | glTexParameteri(GL_TEXTURE_2D, |
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| 361 | GL_TEXTURE_MAG_FILTER, |
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| 362 | GL_NEAREST); |
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| 363 | |||
| 4502 | Serge | 364 | eglMakeCurrent(dpy, surface, surface, context); |
| 365 | |||
| 366 | return render; |
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| 367 | |||
| 368 | err11: |
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| 369 | glDeleteShader(vs_shader); |
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| 370 | err10: |
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| 371 | glDeleteProgram(render->blit_prog); |
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| 372 | err9: |
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| 373 | glDeleteFramebuffers(1, &render->framebuffer); |
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| 374 | err8: |
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| 375 | eglDestroyImageKHR(dpy, render->screen); |
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| 376 | err7: |
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| 377 | glDeleteTextures(1, &render->tx_screen); |
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| 378 | err6: |
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| 379 | glDeleteTextures(2, render->tx_buffers); |
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| 380 | err5: |
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| 381 | eglMakeCurrent(dpy, surface, surface, context); |
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| 382 | err4: |
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| 383 | eglDestroyContext(dpy, render->context); |
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| 384 | err3: |
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| 385 | eglDestroyImageKHR(dpy, render->back); |
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| 386 | err2: |
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| 387 | eglDestroyImageKHR(dpy, render->front); |
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| 388 | err1: |
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| 389 | free(render); |
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| 390 | err: |
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| 391 | return NULL; |
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| 392 | }; |
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| 393 | |||
| 394 | |||
| 395 | |||
| 4517 | Serge | 396 | |
| 397 | void create_mask(struct render *render) |
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| 398 | { |
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| 399 | static EGLint attrib[] = |
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| 400 | { |
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| 401 | EGL_GL_TEXTURE_LEVEL_KHR, 0, |
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| 402 | EGL_NONE |
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| 403 | }; |
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| 4523 | Serge | 404 | struct drm_i915_gem_mmap_gtt mmap_arg; |
| 4517 | Serge | 405 | EGLint handle, stride; |
| 4523 | Serge | 406 | int winw, winh, pitch; |
| 4517 | Serge | 407 | void *data; |
| 408 | |||
| 409 | glGenTextures(1, &render->tx_mask); |
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| 410 | if(glGetError() != GL_NO_ERROR) |
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| 411 | goto err1; |
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| 412 | |||
| 413 | glBindTexture(GL_TEXTURE_2D, render->tx_mask); |
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| 414 | if(glGetError() != GL_NO_ERROR) |
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| 415 | goto err2; |
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| 416 | |||
| 417 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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| 418 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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| 419 | |||
| 4523 | Serge | 420 | winw = render->width+10; |
| 421 | winh = render->height+20+5; |
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| 4517 | Serge | 422 | |
| 4523 | Serge | 423 | pitch = (winw+3) & -4; |
| 4517 | Serge | 424 | |
| 4523 | Serge | 425 | data = user_alloc(pitch * winh); |
| 426 | |||
| 427 | memset(data, 0x20, pitch * winh); |
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| 428 | |||
| 429 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, winw, winh, 0, |
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| 4517 | Serge | 430 | GL_RED,GL_UNSIGNED_BYTE, data); |
| 431 | |||
| 432 | user_free(data); |
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| 433 | |||
| 434 | if(glGetError() != GL_NO_ERROR) |
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| 435 | goto err2; |
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| 436 | |||
| 437 | render->mask = eglCreateImageKHR(render->dpy, render->context, |
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| 438 | EGL_GL_TEXTURE_2D_KHR,(EGLClientBuffer)render->tx_mask,attrib); |
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| 439 | |||
| 440 | if(render->mask == EGL_NO_IMAGE_KHR) |
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| 441 | goto err2; |
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| 442 | |||
| 443 | if(!eglExportDRMImageMESA(render->dpy, render->mask, NULL, &handle, &stride)) |
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| 444 | goto err3; |
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| 445 | |||
| 446 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 447 | |||
| 448 | mmap_arg.handle = handle; |
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| 449 | mmap_arg.offset = 0; |
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| 4523 | Serge | 450 | // mmap_arg.size = stride * winh; |
| 451 | if (drm_ioctl(render->fd, DRM_IOCTL_I915_GEM_MMAP_GTT, &mmap_arg)) |
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| 4517 | Serge | 452 | { |
| 453 | printf("%s: failed to mmap image %p handle=%d, %d bytes, into CPU domain\n", |
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| 4523 | Serge | 454 | __FUNCTION__, render->mask, handle, stride*winh); |
| 4517 | Serge | 455 | goto err3; |
| 456 | } |
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| 457 | |||
| 4523 | Serge | 458 | render->mask_buffer = (void *)(uintptr_t)mmap_arg.offset; |
| 459 | render->mask_handle = handle; |
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| 4517 | Serge | 460 | |
| 4523 | Serge | 461 | printf("%s: mmap image %p handle=%d, stride %d %d bytes to %p\n", |
| 462 | __FUNCTION__, render->mask, handle, stride, stride*winh, render->mask_buffer); |
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| 4517 | Serge | 463 | |
| 464 | return; |
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| 465 | |||
| 466 | err3: |
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| 467 | eglDestroyImageKHR(render->dpy, render->mask); |
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| 468 | err2: |
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| 469 | glBindTexture(GL_TEXTURE_2D, 0); |
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| 470 | err1: |
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| 471 | glDeleteTextures(1, &render->tx_mask); |
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| 472 | }; |