Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <stdbool.h> |
| 18 | #include <stdlib.h> |
| 19 | #include <string.h> |
| 20 | #include <unistd.h> |
| 21 | |
| 22 | #include <fcntl.h> |
| 23 | #include <stdio.h> |
| 24 | |
| 25 | #include <sys/ioctl.h> |
| 26 | #include <sys/mman.h> |
| 27 | #include <sys/types.h> |
| 28 | |
| 29 | #include <linux/fb.h> |
| 30 | #include <linux/kd.h> |
| 31 | |
| 32 | #include <time.h> |
| 33 | |
| 34 | #include <pixelflinger/pixelflinger.h> |
| 35 | #include "../gui/placement.h" |
| 36 | #include "minui.h" |
| 37 | #include "graphics.h" |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 38 | // For std::min and std::max |
| 39 | #include <algorithm> |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 40 | |
| 41 | struct GRFont { |
| 42 | GRSurface* texture; |
| 43 | int cwidth; |
| 44 | int cheight; |
| 45 | }; |
| 46 | |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 47 | static minui_backend* gr_backend = NULL; |
| 48 | |
| 49 | static int overscan_percent = OVERSCAN_PERCENT; |
| 50 | static int overscan_offset_x = 0; |
| 51 | static int overscan_offset_y = 0; |
| 52 | |
| 53 | static unsigned char gr_current_r = 255; |
| 54 | static unsigned char gr_current_g = 255; |
| 55 | static unsigned char gr_current_b = 255; |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 56 | |
| 57 | GRSurface* gr_draw = NULL; |
| 58 | |
| 59 | static GGLContext *gr_context = 0; |
| 60 | GGLSurface gr_mem_surface; |
| 61 | static int gr_is_curr_clr_opaque = 0; |
| 62 | |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 63 | int gr_textEx_scaleW(int x, int y, const char *s, void* pFont, int max_width, int placement, int scale) |
| 64 | { |
| 65 | GGLContext *gl = gr_context; |
| 66 | void* vfont = pFont; |
| 67 | GRFont *font = (GRFont*) pFont; |
Ethan Yonker | 58f2132 | 2018-08-24 11:17:36 -0500 | [diff] [blame] | 68 | int y_scale = 0, measured_width, measured_height, new_height; |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 69 | |
| 70 | if (!s || strlen(s) == 0 || !font) |
| 71 | return 0; |
| 72 | |
| 73 | measured_height = gr_ttf_getMaxFontHeight(font); |
| 74 | |
| 75 | if (scale) { |
| 76 | measured_width = gr_ttf_measureEx(s, vfont); |
| 77 | if (measured_width > max_width) { |
| 78 | // Adjust font size down until the text fits |
| 79 | void *new_font = gr_ttf_scaleFont(vfont, max_width, measured_width); |
| 80 | if (!new_font) { |
| 81 | printf("gr_textEx_scaleW new_font is NULL\n"); |
| 82 | return 0; |
| 83 | } |
| 84 | measured_width = gr_ttf_measureEx(s, new_font); |
| 85 | // These next 2 lines adjust the y point based on the new font's height |
| 86 | new_height = gr_ttf_getMaxFontHeight(new_font); |
| 87 | y_scale = (measured_height - new_height) / 2; |
| 88 | vfont = new_font; |
| 89 | } |
| 90 | } else |
| 91 | measured_width = gr_ttf_measureEx(s, vfont); |
| 92 | |
| 93 | int x_adj = measured_width; |
| 94 | if (measured_width > max_width) |
| 95 | x_adj = max_width; |
| 96 | |
| 97 | if (placement != TOP_LEFT && placement != BOTTOM_LEFT && placement != TEXT_ONLY_RIGHT) { |
| 98 | if (placement == CENTER || placement == CENTER_X_ONLY) |
| 99 | x -= (x_adj / 2); |
| 100 | else |
| 101 | x -= x_adj; |
| 102 | } |
| 103 | |
| 104 | if (placement != TOP_LEFT && placement != TOP_RIGHT) { |
| 105 | if (placement == CENTER || placement == TEXT_ONLY_RIGHT) |
| 106 | y -= (measured_height / 2); |
| 107 | else if (placement == BOTTOM_LEFT || placement == BOTTOM_RIGHT) |
| 108 | y -= measured_height; |
| 109 | } |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 110 | return gr_ttf_textExWH(gl, x, y + y_scale, s, vfont, measured_width + x, -1, gr_draw); |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | void gr_clip(int x, int y, int w, int h) |
| 114 | { |
| 115 | GGLContext *gl = gr_context; |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 116 | int x0_disp, y0_disp, x1_disp, y1_disp; |
| 117 | int l_disp, r_disp, t_disp, b_disp; |
| 118 | |
| 119 | x0_disp = ROTATION_X_DISP(x, y, gr_draw); |
| 120 | y0_disp = ROTATION_Y_DISP(x, y, gr_draw); |
| 121 | x1_disp = ROTATION_X_DISP(x + w, y + h, gr_draw); |
| 122 | y1_disp = ROTATION_Y_DISP(x + w, y + h, gr_draw); |
| 123 | l_disp = std::min(x0_disp, x1_disp); |
| 124 | r_disp = std::max(x0_disp, x1_disp); |
| 125 | t_disp = std::min(y0_disp, y1_disp); |
| 126 | b_disp = std::max(y0_disp, y1_disp); |
| 127 | gl->scissor(gl, l_disp, t_disp, r_disp, b_disp); |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 128 | gl->enable(gl, GGL_SCISSOR_TEST); |
| 129 | } |
| 130 | |
| 131 | void gr_noclip() |
| 132 | { |
| 133 | GGLContext *gl = gr_context; |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 134 | gl->scissor(gl, 0, 0, |
| 135 | gr_draw->width - 2 * overscan_offset_x, |
| 136 | gr_draw->height - 2 * overscan_offset_y); |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 137 | gl->disable(gl, GGL_SCISSOR_TEST); |
| 138 | } |
| 139 | |
| 140 | void gr_line(int x0, int y0, int x1, int y1, int width) |
| 141 | { |
| 142 | GGLContext *gl = gr_context; |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 143 | int x0_disp, y0_disp, x1_disp, y1_disp; |
| 144 | |
| 145 | x0_disp = ROTATION_X_DISP(x0, y0, gr_draw); |
| 146 | y0_disp = ROTATION_Y_DISP(x0, y0, gr_draw); |
| 147 | x1_disp = ROTATION_X_DISP(x1, y1, gr_draw); |
| 148 | y1_disp = ROTATION_Y_DISP(x1, y1, gr_draw); |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 149 | |
| 150 | if(gr_is_curr_clr_opaque) |
| 151 | gl->disable(gl, GGL_BLEND); |
| 152 | |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 153 | const int coords0[2] = { x0_disp << 4, y0_disp << 4 }; |
| 154 | const int coords1[2] = { x1_disp << 4, y1_disp << 4 }; |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 155 | gl->linex(gl, coords0, coords1, width << 4); |
| 156 | |
| 157 | if(gr_is_curr_clr_opaque) |
| 158 | gl->enable(gl, GGL_BLEND); |
| 159 | } |
| 160 | |
| 161 | gr_surface gr_render_circle(int radius, unsigned char r, unsigned char g, unsigned char b, unsigned char a) |
| 162 | { |
| 163 | int rx, ry; |
| 164 | GGLSurface *surface; |
| 165 | const int diameter = radius*2 + 1; |
| 166 | const int radius_check = radius*radius + radius*0.8; |
| 167 | const uint32_t px = (a << 24) | (b << 16) | (g << 8) | r; |
| 168 | uint32_t *data; |
| 169 | |
| 170 | surface = (GGLSurface *)malloc(sizeof(GGLSurface)); |
| 171 | memset(surface, 0, sizeof(GGLSurface)); |
| 172 | |
| 173 | data = (uint32_t *)malloc(diameter * diameter * 4); |
| 174 | memset(data, 0, diameter * diameter * 4); |
| 175 | |
| 176 | surface->version = sizeof(surface); |
| 177 | surface->width = diameter; |
| 178 | surface->height = diameter; |
| 179 | surface->stride = diameter; |
| 180 | surface->data = (GGLubyte*)data; |
notsyncing | 8e4e8ec | 2018-06-09 10:40:50 +0800 | [diff] [blame] | 181 | #if defined(RECOVERY_BGRA) |
| 182 | surface->format = GGL_PIXEL_FORMAT_BGRA_8888; |
| 183 | #else |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 184 | surface->format = GGL_PIXEL_FORMAT_RGBA_8888; |
notsyncing | 8e4e8ec | 2018-06-09 10:40:50 +0800 | [diff] [blame] | 185 | #endif |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 186 | |
| 187 | for(ry = -radius; ry <= radius; ++ry) |
| 188 | for(rx = -radius; rx <= radius; ++rx) |
| 189 | if(rx*rx+ry*ry <= radius_check) |
| 190 | *(data + diameter*(radius + ry) + (radius+rx)) = px; |
| 191 | |
| 192 | return (gr_surface)surface; |
| 193 | } |
| 194 | |
| 195 | void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a) |
| 196 | { |
| 197 | GGLContext *gl = gr_context; |
| 198 | GGLint color[4]; |
| 199 | #if defined(RECOVERY_ABGR) || defined(RECOVERY_BGRA) |
| 200 | color[0] = ((b << 8) | r) + 1; |
| 201 | color[1] = ((g << 8) | g) + 1; |
| 202 | color[2] = ((r << 8) | b) + 1; |
| 203 | color[3] = ((a << 8) | a) + 1; |
| 204 | #else |
| 205 | color[0] = ((r << 8) | r) + 1; |
| 206 | color[1] = ((g << 8) | g) + 1; |
| 207 | color[2] = ((b << 8) | b) + 1; |
| 208 | color[3] = ((a << 8) | a) + 1; |
| 209 | #endif |
| 210 | gl->color4xv(gl, color); |
| 211 | |
| 212 | gr_is_curr_clr_opaque = (a == 255); |
| 213 | } |
| 214 | |
| 215 | void gr_clear() |
| 216 | { |
| 217 | if (gr_draw->pixel_bytes == 2) { |
| 218 | gr_fill(0, 0, gr_fb_width(), gr_fb_height()); |
| 219 | return; |
| 220 | } |
| 221 | |
| 222 | // This code only works on 32bpp devices |
| 223 | if (gr_current_r == gr_current_g && gr_current_r == gr_current_b) { |
| 224 | memset(gr_draw->data, gr_current_r, gr_draw->height * gr_draw->row_bytes); |
| 225 | } else { |
| 226 | unsigned char* px = gr_draw->data; |
| 227 | for (int y = 0; y < gr_draw->height; ++y) { |
| 228 | for (int x = 0; x < gr_draw->width; ++x) { |
| 229 | *px++ = gr_current_r; |
| 230 | *px++ = gr_current_g; |
| 231 | *px++ = gr_current_b; |
| 232 | px++; |
| 233 | } |
| 234 | px += gr_draw->row_bytes - (gr_draw->width * gr_draw->pixel_bytes); |
| 235 | } |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | void gr_fill(int x, int y, int w, int h) |
| 240 | { |
| 241 | GGLContext *gl = gr_context; |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 242 | int x0_disp, y0_disp, x1_disp, y1_disp; |
| 243 | int l_disp, r_disp, t_disp, b_disp; |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 244 | |
| 245 | if(gr_is_curr_clr_opaque) |
| 246 | gl->disable(gl, GGL_BLEND); |
| 247 | |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 248 | x0_disp = ROTATION_X_DISP(x, y, gr_draw); |
| 249 | y0_disp = ROTATION_Y_DISP(x, y, gr_draw); |
| 250 | x1_disp = ROTATION_X_DISP(x + w, y + h, gr_draw); |
| 251 | y1_disp = ROTATION_Y_DISP(x + w, y + h, gr_draw); |
| 252 | l_disp = std::min(x0_disp, x1_disp); |
| 253 | r_disp = std::max(x0_disp, x1_disp); |
| 254 | t_disp = std::min(y0_disp, y1_disp); |
| 255 | b_disp = std::max(y0_disp, y1_disp); |
| 256 | |
| 257 | gl->recti(gl, l_disp, t_disp, r_disp, b_disp); |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 258 | |
| 259 | if(gr_is_curr_clr_opaque) |
| 260 | gl->enable(gl, GGL_BLEND); |
| 261 | } |
| 262 | |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 263 | void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy) |
| 264 | { |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 265 | if (gr_context == NULL) { |
| 266 | return; |
| 267 | } |
| 268 | |
| 269 | GGLContext *gl = gr_context; |
| 270 | GGLSurface *surface = (GGLSurface*)source; |
| 271 | |
| 272 | if(surface->format == GGL_PIXEL_FORMAT_RGBX_8888) |
| 273 | gl->disable(gl, GGL_BLEND); |
| 274 | |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 275 | int dx0_disp, dy0_disp, dx1_disp, dy1_disp; |
| 276 | int l_disp, r_disp, t_disp, b_disp; |
| 277 | |
| 278 | // Figuring out display coordinates works for TW_ROTATION == 0 too, |
| 279 | // and isn't as expensive as allocating and rotating another surface, |
| 280 | // so we do this anyway. |
| 281 | dx0_disp = ROTATION_X_DISP(dx, dy, gr_draw); |
| 282 | dy0_disp = ROTATION_Y_DISP(dx, dy, gr_draw); |
| 283 | dx1_disp = ROTATION_X_DISP(dx + w, dy + h, gr_draw); |
| 284 | dy1_disp = ROTATION_Y_DISP(dx + w, dy + h, gr_draw); |
| 285 | l_disp = std::min(dx0_disp, dx1_disp); |
| 286 | r_disp = std::max(dx0_disp, dx1_disp); |
| 287 | t_disp = std::min(dy0_disp, dy1_disp); |
| 288 | b_disp = std::max(dy0_disp, dy1_disp); |
| 289 | |
| 290 | #if TW_ROTATION != 0 |
| 291 | // Do not perform relatively expensive operation if not needed |
| 292 | GGLSurface surface_rotated; |
| 293 | surface_rotated.version = sizeof(surface_rotated); |
| 294 | // Skip the **(TW_ROTATION == 0)** || (TW_ROTATION == 180) check |
| 295 | // because we are under a TW_ROTATION != 0 conditional compilation statement |
| 296 | surface_rotated.width = (TW_ROTATION == 180) ? surface->width : surface->height; |
| 297 | surface_rotated.height = (TW_ROTATION == 180) ? surface->height : surface->width; |
| 298 | surface_rotated.stride = surface_rotated.width; |
| 299 | surface_rotated.format = surface->format; |
| 300 | surface_rotated.data = (GGLubyte*) malloc(surface_rotated.stride * surface_rotated.height * 4); |
| 301 | surface_ROTATION_transform((gr_surface) &surface_rotated, (const gr_surface) surface, 4); |
| 302 | |
| 303 | gl->bindTexture(gl, &surface_rotated); |
| 304 | #else |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 305 | gl->bindTexture(gl, surface); |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 306 | #endif |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 307 | gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE); |
| 308 | gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE); |
| 309 | gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE); |
| 310 | gl->enable(gl, GGL_TEXTURE_2D); |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 311 | gl->texCoord2i(gl, sx - l_disp, sy - t_disp); |
| 312 | gl->recti(gl, l_disp, t_disp, r_disp, b_disp); |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 313 | gl->disable(gl, GGL_TEXTURE_2D); |
| 314 | |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 315 | #if TW_ROTATION != 0 |
| 316 | free(surface_rotated.data); |
| 317 | #endif |
| 318 | |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 319 | if(surface->format == GGL_PIXEL_FORMAT_RGBX_8888) |
| 320 | gl->enable(gl, GGL_BLEND); |
| 321 | } |
| 322 | |
| 323 | unsigned int gr_get_width(gr_surface surface) { |
| 324 | if (surface == NULL) { |
| 325 | return 0; |
| 326 | } |
| 327 | return ((GGLSurface*) surface)->width; |
| 328 | } |
| 329 | |
| 330 | unsigned int gr_get_height(gr_surface surface) { |
| 331 | if (surface == NULL) { |
| 332 | return 0; |
| 333 | } |
| 334 | return ((GGLSurface*) surface)->height; |
| 335 | } |
| 336 | |
| 337 | void gr_flip() { |
| 338 | gr_draw = gr_backend->flip(gr_backend); |
| 339 | // On double buffered back ends, when we flip, we need to tell |
| 340 | // pixel flinger to draw to the other buffer |
| 341 | gr_mem_surface.data = (GGLubyte*)gr_draw->data; |
| 342 | gr_context->colorBuffer(gr_context, &gr_mem_surface); |
| 343 | } |
| 344 | |
| 345 | static void get_memory_surface(GGLSurface* ms) { |
| 346 | ms->version = sizeof(*ms); |
| 347 | ms->width = gr_draw->width; |
| 348 | ms->height = gr_draw->height; |
| 349 | ms->stride = gr_draw->row_bytes / gr_draw->pixel_bytes; |
| 350 | ms->data = (GGLubyte*)gr_draw->data; |
| 351 | ms->format = gr_draw->format; |
| 352 | } |
| 353 | |
| 354 | int gr_init(void) |
| 355 | { |
| 356 | gr_draw = NULL; |
| 357 | |
Ethan Yonker | b386f71 | 2017-01-20 14:30:28 -0600 | [diff] [blame] | 358 | #ifdef MSM_BSP |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 359 | gr_backend = open_overlay(); |
| 360 | if (gr_backend) { |
| 361 | gr_draw = gr_backend->init(gr_backend); |
| 362 | if (!gr_draw) { |
| 363 | gr_backend->exit(gr_backend); |
| 364 | } else |
| 365 | printf("Using overlay graphics.\n"); |
| 366 | } |
Ethan Yonker | b386f71 | 2017-01-20 14:30:28 -0600 | [diff] [blame] | 367 | #endif |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 368 | |
| 369 | #ifdef HAS_ADF |
Ethan Yonker | b386f71 | 2017-01-20 14:30:28 -0600 | [diff] [blame] | 370 | if (!gr_backend || !gr_draw) { |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 371 | gr_backend = open_adf(); |
| 372 | if (gr_backend) { |
| 373 | gr_draw = gr_backend->init(gr_backend); |
| 374 | if (!gr_draw) { |
| 375 | gr_backend->exit(gr_backend); |
| 376 | } else |
| 377 | printf("Using adf graphics.\n"); |
| 378 | } |
| 379 | } |
| 380 | #else |
| 381 | #ifdef MSM_BSP |
| 382 | printf("Skipping adf graphics because TW_TARGET_USES_QCOM_BSP := true\n"); |
| 383 | #else |
| 384 | printf("Skipping adf graphics -- not present in build tree\n"); |
| 385 | #endif |
| 386 | #endif |
| 387 | |
| 388 | #ifdef HAS_DRM |
Ethan Yonker | b386f71 | 2017-01-20 14:30:28 -0600 | [diff] [blame] | 389 | if (!gr_backend || !gr_draw) { |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 390 | gr_backend = open_drm(); |
| 391 | gr_draw = gr_backend->init(gr_backend); |
| 392 | if (gr_draw) |
| 393 | printf("Using drm graphics.\n"); |
| 394 | } |
| 395 | #else |
| 396 | printf("Skipping drm graphics -- not present in build tree\n"); |
| 397 | #endif |
| 398 | |
Ethan Yonker | b386f71 | 2017-01-20 14:30:28 -0600 | [diff] [blame] | 399 | if (!gr_backend || !gr_draw) { |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 400 | gr_backend = open_fbdev(); |
| 401 | gr_draw = gr_backend->init(gr_backend); |
| 402 | if (gr_draw == NULL) { |
| 403 | return -1; |
| 404 | } else |
| 405 | printf("Using fbdev graphics.\n"); |
| 406 | } |
| 407 | |
| 408 | overscan_offset_x = gr_draw->width * overscan_percent / 100; |
| 409 | overscan_offset_y = gr_draw->height * overscan_percent / 100; |
| 410 | |
| 411 | // Set up pixelflinger |
| 412 | get_memory_surface(&gr_mem_surface); |
| 413 | gglInit(&gr_context); |
| 414 | GGLContext *gl = gr_context; |
| 415 | gl->colorBuffer(gl, &gr_mem_surface); |
| 416 | |
| 417 | gl->activeTexture(gl, 0); |
| 418 | gl->enable(gl, GGL_BLEND); |
| 419 | gl->blendFunc(gl, GGL_SRC_ALPHA, GGL_ONE_MINUS_SRC_ALPHA); |
| 420 | |
| 421 | gr_flip(); |
| 422 | gr_flip(); |
| 423 | |
¨Paul | 80bd165 | 2016-04-26 16:49:58 +0100 | [diff] [blame] | 424 | #ifdef TW_SCREEN_BLANK_ON_BOOT |
| 425 | printf("TW_SCREEN_BLANK_ON_BOOT := true\n"); |
| 426 | gr_fb_blank(true); |
| 427 | gr_fb_blank(false); |
| 428 | #endif |
| 429 | |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 430 | return 0; |
| 431 | } |
| 432 | |
| 433 | void gr_exit(void) |
| 434 | { |
| 435 | gr_backend->exit(gr_backend); |
| 436 | } |
| 437 | |
| 438 | int gr_fb_width(void) |
| 439 | { |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 440 | return (TW_ROTATION == 0 || TW_ROTATION == 180) ? |
| 441 | gr_draw->width - 2 * overscan_offset_x : |
| 442 | gr_draw->height - 2 * overscan_offset_y; |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 443 | } |
| 444 | |
| 445 | int gr_fb_height(void) |
| 446 | { |
Vladimir Oltean | d32b7eb | 2018-07-03 00:04:03 +0300 | [diff] [blame^] | 447 | return (TW_ROTATION == 0 || TW_ROTATION == 180) ? |
| 448 | gr_draw->height - 2 * overscan_offset_y : |
| 449 | gr_draw->width - 2 * overscan_offset_x; |
Ethan Yonker | fbb4353 | 2015-12-28 21:54:50 +0100 | [diff] [blame] | 450 | } |
| 451 | |
| 452 | void gr_fb_blank(bool blank) |
| 453 | { |
| 454 | gr_backend->blank(gr_backend, blank); |
| 455 | } |
| 456 | |
| 457 | int gr_get_surface(gr_surface* surface) |
| 458 | { |
| 459 | GGLSurface* ms = (GGLSurface*)malloc(sizeof(GGLSurface)); |
| 460 | if (!ms) return -1; |
| 461 | |
| 462 | // Allocate the data |
| 463 | get_memory_surface(ms); |
| 464 | ms->data = (GGLubyte*)malloc(ms->stride * ms->height * gr_draw->pixel_bytes); |
| 465 | |
| 466 | // Now, copy the data |
| 467 | memcpy(ms->data, gr_mem_surface.data, gr_draw->width * gr_draw->height * gr_draw->pixel_bytes / 8); |
| 468 | |
| 469 | *surface = (gr_surface*) ms; |
| 470 | return 0; |
| 471 | } |
| 472 | |
| 473 | int gr_free_surface(gr_surface surface) |
| 474 | { |
| 475 | if (!surface) |
| 476 | return -1; |
| 477 | |
| 478 | GGLSurface* ms = (GGLSurface*) surface; |
| 479 | free(ms->data); |
| 480 | free(ms); |
| 481 | return 0; |
| 482 | } |
| 483 | |
| 484 | void gr_write_frame_to_file(int fd) |
| 485 | { |
| 486 | write(fd, gr_mem_surface.data, gr_draw->width * gr_draw->height * gr_draw->pixel_bytes / 8); |
| 487 | } |