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Rev | Author | Line No. | Line |
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4464 | Serge | 1 | #include |
2 | #include |
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3 | #include |
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4 | #include |
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5 | |||
6 | #define EGL_EGLEXT_PROTOTYPES |
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4472 | Serge | 7 | #define GL_GLEXT_PROTOTYPES |
8 | |||
4464 | Serge | 9 | #include "EGL/egl.h" |
10 | #include "EGL/eglext.h" |
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11 | #include "GL/gl.h" |
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12 | #include "gbm.h" |
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4472 | Serge | 13 | #include |
4464 | Serge | 14 | #include |
15 | #include |
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16 | |||
4472 | Serge | 17 | static EGLImageKHR px_create_image(EGLDisplay display, EGLContext context, |
18 | int width, int height, int stride, int name, int depth); |
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19 | |||
4464 | Serge | 20 | int main() |
21 | { |
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22 | struct gbm_device *gbm; |
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23 | struct gbm_surface *gs; |
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24 | |||
25 | EGLDisplay dpy; |
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26 | EGLint major, minor; |
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27 | |||
28 | EGLContext context; |
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29 | EGLSurface surface; |
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4472 | Serge | 30 | EGLImageKHR fb_image; |
4464 | Serge | 31 | EGLConfig config; |
32 | |||
33 | EGLint config_attribs[32]; |
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34 | EGLint num_configs, i; |
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35 | GLint list; |
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4472 | Serge | 36 | GLuint *texture; |
4464 | Serge | 37 | |
38 | int fd; |
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39 | |||
40 | fd = get_service("DISPLAY"); |
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41 | gbm = gbm_create_device(fd); |
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42 | if( gbm == NULL){ |
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43 | printf("failed to initialize GBM device"); |
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44 | return 1; |
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45 | }; |
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46 | |||
4472 | Serge | 47 | init_pixlib(HW_BIT_BLIT); |
48 | |||
4464 | Serge | 49 | dpy = eglGetDisplay((EGLNativeDisplayType)gbm); |
50 | |||
51 | if (!eglInitialize(dpy, &major, &minor)) |
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52 | printf("failed to initialize EGL display"); |
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53 | |||
54 | printf("EGL_VERSION = %s\n", eglQueryString(dpy, EGL_VERSION)); |
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55 | printf("EGL_VENDOR = %s\n", eglQueryString(dpy, EGL_VENDOR)); |
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56 | printf("EGL_EXTENSIONS = %s\n", eglQueryString(dpy, EGL_EXTENSIONS)); |
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57 | printf("EGL_CLIENT_APIS = %s\n",eglQueryString(dpy, EGL_CLIENT_APIS)); |
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58 | |||
59 | i = 0; |
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60 | config_attribs[i++] = EGL_RED_SIZE; |
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61 | config_attribs[i++] = 1; |
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62 | config_attribs[i++] = EGL_GREEN_SIZE; |
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63 | config_attribs[i++] = 1; |
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64 | config_attribs[i++] = EGL_BLUE_SIZE; |
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65 | config_attribs[i++] = 1; |
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66 | config_attribs[i++] = EGL_DEPTH_SIZE; |
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67 | config_attribs[i++] = 1; |
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68 | |||
69 | config_attribs[i++] = EGL_SURFACE_TYPE; |
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70 | config_attribs[i++] = EGL_WINDOW_BIT; |
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71 | |||
72 | config_attribs[i++] = EGL_RENDERABLE_TYPE; |
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73 | config_attribs[i++] = EGL_OPENGL_BIT; |
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74 | config_attribs[i] = EGL_NONE; |
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75 | |||
76 | if (!eglChooseConfig(dpy,config_attribs, &config, 1, &num_configs) || !num_configs) |
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77 | printf("failed to choose a config"); |
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78 | |||
79 | eglBindAPI(EGL_OPENGL_API); |
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80 | context = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL); |
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81 | if (!context) |
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82 | printf("failed to create context"); |
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83 | |||
84 | gs = gbm_surface_create(gbm, 400, 300, GBM_BO_FORMAT_ARGB8888, GBM_BO_USE_RENDERING); |
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85 | |||
86 | |||
87 | BeginDraw(); |
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88 | DrawWindow(20, 20, 400+9, 300+24, "gl-render", 0x000000, 0x74); |
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89 | EndDraw(); |
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90 | |||
4472 | Serge | 91 | sna_create_mask(); |
92 | |||
4464 | Serge | 93 | surface = eglCreateWindowSurface(dpy,config, (EGLNativeWindowType)gs, NULL); |
94 | if (surface == EGL_NO_SURFACE) |
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95 | printf("failed to create surface"); |
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96 | |||
97 | if (!eglMakeCurrent(dpy, surface, surface, context)) |
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98 | printf("failed to make window current"); |
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99 | |||
4472 | Serge | 100 | |
101 | if(fd) |
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102 | { |
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103 | int ret; |
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104 | struct drm_i915_fb_info fb; |
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105 | struct drm_gem_open open_arg; |
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106 | |||
107 | memset(&fb, 0, sizeof(fb)); |
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108 | ret = drmIoctl(fd, SRV_FBINFO, &fb); |
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109 | if( ret != 0 ) |
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110 | printf("failed to get framebuffer info\n"); |
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111 | |||
112 | memset(&open_arg,0,sizeof(open_arg)); |
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113 | open_arg.name = fb.name; |
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114 | ret = drmIoctl(fd,DRM_IOCTL_GEM_OPEN,&open_arg); |
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115 | if (ret != 0) { |
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116 | printf("Couldn't reference framebuffer handle 0x%08x\n", fb.name); |
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117 | } |
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118 | |||
119 | asm volatile ("int3"); |
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120 | |||
121 | fb_image = px_create_image(dpy,context,fb.width,fb.height, |
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122 | fb.pitch,open_arg.handle,32); |
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123 | |||
124 | glGenTextures(1, texture); |
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125 | glBindTexture(GL_TEXTURE_2D, *texture); |
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126 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
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127 | glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
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128 | |||
129 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,fb_image); |
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130 | glBindTexture(GL_TEXTURE_2D, 0); |
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131 | |||
132 | } |
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133 | |||
4464 | Serge | 134 | glClearColor( 0, 0, 0, 1); |
135 | |||
136 | list = glGenLists(1); |
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137 | glNewList(list, GL_COMPILE); |
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138 | |||
139 | /* XXX: this state-change will only be executed if list is called |
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140 | * from outside a begin/end pair: |
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141 | */ |
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142 | glShadeModel( GL_FLAT ); |
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143 | glBegin(GL_TRIANGLES); |
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144 | glColor3f(0,0,.7); |
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145 | glVertex3f( -0.9, 0.9, -30.0); |
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146 | glColor3f(0,.9,0); |
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147 | glVertex3f( -0.9, -0.9, -30.0); |
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148 | glColor3f(.8,0,0); |
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149 | glVertex3f( 0.9, 0.0, -30.0); |
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150 | glEnd(); |
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151 | |||
152 | /* This statechange is potentially NOT redundant: |
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153 | */ |
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154 | glShadeModel( GL_FLAT ); |
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155 | glBegin(GL_TRIANGLES); |
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156 | glColor3f(0,1,0); |
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157 | glVertex3f( -0.5, 0.5, -30.0); |
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158 | glColor3f(0,0,1); |
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159 | glVertex3f( -0.5, -0.5, -30.0); |
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160 | glColor3f(1,0,0); |
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161 | glVertex3f( 0.5, 0.0, -30.0); |
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162 | glEnd(); |
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163 | |||
164 | glEndList(); |
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165 | |||
4472 | Serge | 166 | asm volatile ("int3"); |
167 | |||
4464 | Serge | 168 | glDrawBuffer(GL_BACK); |
169 | |||
170 | glViewport(0, 0, (GLint)400, (GLint)300); |
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171 | |||
172 | glMatrixMode(GL_PROJECTION); |
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173 | glLoadIdentity(); |
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4472 | Serge | 174 | glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 100.0); |
4464 | Serge | 175 | glMatrixMode(GL_MODELVIEW); |
176 | |||
4472 | Serge | 177 | glClear(GL_COLOR_BUFFER_BIT); |
4464 | Serge | 178 | |
179 | glShadeModel( GL_SMOOTH ); |
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180 | |||
181 | glBegin(GL_TRIANGLES); |
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182 | |||
183 | /* Note: call the list from inside a begin/end pair. The end is |
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184 | * provided by the display list... |
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185 | */ |
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186 | glCallList(list); |
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187 | glFlush(); |
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188 | |||
189 | |||
190 | eglSwapBuffers(dpy, surface); |
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191 | |||
192 | glFinish(); |
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193 | eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); |
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194 | eglDestroySurface(dpy, surface); |
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195 | gbm_surface_destroy(gs); |
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196 | eglDestroyContext(dpy, context); |
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197 | eglTerminate(dpy); |
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198 | |||
199 | while(1) |
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200 | { |
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201 | delay(1); |
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202 | } |
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4472 | Serge | 203 | |
4464 | Serge | 204 | return 0; |
205 | } |
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4472 | Serge | 206 | |
207 | int drmIoctl(int fd, unsigned long request, void *arg) |
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208 | { |
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209 | ioctl_t io; |
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210 | |||
211 | io.handle = fd; |
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212 | io.io_code = request; |
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213 | io.input = arg; |
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214 | io.inp_size = 64; |
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215 | io.output = NULL; |
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216 | io.out_size = 0; |
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217 | |||
218 | return call_service(&io); |
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219 | } |
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220 | |||
221 | static EGLImageKHR px_create_image(EGLDisplay display, EGLContext context, |
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222 | int width, int height, int stride, int name, int depth) |
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223 | { |
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224 | EGLImageKHR image; |
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225 | EGLint attribs[] = { |
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226 | EGL_WIDTH, 0, |
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227 | EGL_HEIGHT, 0, |
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228 | EGL_DRM_BUFFER_STRIDE_MESA, 0, |
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229 | EGL_DRM_BUFFER_FORMAT_MESA, |
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230 | EGL_DRM_BUFFER_FORMAT_ARGB32_MESA, |
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231 | EGL_DRM_BUFFER_USE_MESA, |
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232 | EGL_DRM_BUFFER_USE_SHARE_MESA | |
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233 | EGL_DRM_BUFFER_USE_SCANOUT_MESA, |
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234 | EGL_NONE |
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235 | }; |
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236 | attribs[1] = width; |
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237 | attribs[3] = height; |
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238 | attribs[5] = stride; |
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239 | if (depth != 32 && depth != 24) |
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240 | return EGL_NO_IMAGE_KHR; |
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241 | image = eglCreateImageKHR(display, context, EGL_DRM_BUFFER_MESA, |
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242 | (void *) (uintptr_t)name, attribs); |
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243 | if (image == EGL_NO_IMAGE_KHR) |
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244 | return EGL_NO_IMAGE_KHR; |
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245 | |||
246 | return image; |
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247 | } |