Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2012 Intel Corporation |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and |
| 5 | * its documentation for any purpose is hereby granted without fee, provided |
| 6 | * that the above copyright notice appear in all copies and that both that |
| 7 | * copyright notice and this permission notice appear in supporting |
| 8 | * documentation, and that the name of the copyright holders not be used in |
| 9 | * advertising or publicity pertaining to distribution of the software |
| 10 | * without specific, written prior permission. The copyright holders make |
| 11 | * no representations about the suitability of this software for any |
| 12 | * purpose. It is provided "as is" without express or implied warranty. |
| 13 | * |
| 14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS |
| 15 | * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 16 | * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 17 | * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER |
| 18 | * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF |
| 19 | * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 20 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 23 | #define _GNU_SOURCE |
| 24 | |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 25 | #include <stdlib.h> |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 26 | #include <string.h> |
| 27 | #include <ctype.h> |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 28 | #include <float.h> |
| 29 | #include <assert.h> |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 30 | #include <linux/input.h> |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 31 | |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 32 | #include "compositor.h" |
| 33 | |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 34 | struct gles2_output_state { |
| 35 | EGLSurface egl_surface; |
| 36 | }; |
| 37 | |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 38 | struct gles2_surface_state { |
| 39 | GLfloat color[4]; |
| 40 | }; |
| 41 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 42 | struct gles2_renderer { |
| 43 | struct weston_renderer base; |
| 44 | int fragment_shader_debug; |
| 45 | |
| 46 | EGLDisplay egl_display; |
| 47 | EGLContext egl_context; |
| 48 | EGLConfig egl_config; |
John Kåre Alsaker | 4415450 | 2012-11-13 19:10:20 +0100 | [diff] [blame] | 49 | |
| 50 | struct { |
| 51 | int32_t top, bottom, left, right; |
| 52 | GLuint texture; |
| 53 | int32_t width, height; |
| 54 | } border; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 55 | }; |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 56 | |
| 57 | static inline struct gles2_output_state * |
| 58 | get_output_state(struct weston_output *output) |
| 59 | { |
| 60 | return (struct gles2_output_state *)output->renderer_state; |
| 61 | } |
| 62 | |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 63 | static inline struct gles2_surface_state * |
| 64 | get_surface_state(struct weston_surface *surface) |
| 65 | { |
| 66 | return (struct gles2_surface_state *)surface->renderer_state; |
| 67 | } |
| 68 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 69 | static inline struct gles2_renderer * |
| 70 | get_renderer(struct weston_compositor *ec) |
| 71 | { |
| 72 | return (struct gles2_renderer *)ec->renderer; |
| 73 | } |
| 74 | |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 75 | static const char * |
| 76 | egl_error_string(EGLint code) |
| 77 | { |
| 78 | #define MYERRCODE(x) case x: return #x; |
| 79 | switch (code) { |
| 80 | MYERRCODE(EGL_SUCCESS) |
| 81 | MYERRCODE(EGL_NOT_INITIALIZED) |
| 82 | MYERRCODE(EGL_BAD_ACCESS) |
| 83 | MYERRCODE(EGL_BAD_ALLOC) |
| 84 | MYERRCODE(EGL_BAD_ATTRIBUTE) |
| 85 | MYERRCODE(EGL_BAD_CONTEXT) |
| 86 | MYERRCODE(EGL_BAD_CONFIG) |
| 87 | MYERRCODE(EGL_BAD_CURRENT_SURFACE) |
| 88 | MYERRCODE(EGL_BAD_DISPLAY) |
| 89 | MYERRCODE(EGL_BAD_SURFACE) |
| 90 | MYERRCODE(EGL_BAD_MATCH) |
| 91 | MYERRCODE(EGL_BAD_PARAMETER) |
| 92 | MYERRCODE(EGL_BAD_NATIVE_PIXMAP) |
| 93 | MYERRCODE(EGL_BAD_NATIVE_WINDOW) |
| 94 | MYERRCODE(EGL_CONTEXT_LOST) |
| 95 | default: |
| 96 | return "unknown"; |
| 97 | } |
| 98 | #undef MYERRCODE |
| 99 | } |
| 100 | |
| 101 | static void |
| 102 | print_egl_error_state(void) |
| 103 | { |
| 104 | EGLint code; |
| 105 | |
| 106 | code = eglGetError(); |
| 107 | weston_log("EGL error state: %s (0x%04lx)\n", |
| 108 | egl_error_string(code), (long)code); |
| 109 | } |
| 110 | |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 111 | struct polygon8 { |
| 112 | GLfloat x[8]; |
| 113 | GLfloat y[8]; |
| 114 | int n; |
| 115 | }; |
| 116 | |
| 117 | struct clip_context { |
| 118 | struct { |
| 119 | GLfloat x; |
| 120 | GLfloat y; |
| 121 | } prev; |
| 122 | |
| 123 | struct { |
| 124 | GLfloat x1, y1; |
| 125 | GLfloat x2, y2; |
| 126 | } clip; |
| 127 | |
| 128 | struct { |
| 129 | GLfloat *x; |
| 130 | GLfloat *y; |
| 131 | } vertices; |
| 132 | }; |
| 133 | |
| 134 | static GLfloat |
| 135 | float_difference(GLfloat a, GLfloat b) |
| 136 | { |
| 137 | /* http://www.altdevblogaday.com/2012/02/22/comparing-floating-point-numbers-2012-edition/ */ |
| 138 | static const GLfloat max_diff = 4.0f * FLT_MIN; |
| 139 | static const GLfloat max_rel_diff = 4.0e-5; |
| 140 | GLfloat diff = a - b; |
| 141 | GLfloat adiff = fabsf(diff); |
| 142 | |
| 143 | if (adiff <= max_diff) |
| 144 | return 0.0f; |
| 145 | |
| 146 | a = fabsf(a); |
| 147 | b = fabsf(b); |
| 148 | if (adiff <= (a > b ? a : b) * max_rel_diff) |
| 149 | return 0.0f; |
| 150 | |
| 151 | return diff; |
| 152 | } |
| 153 | |
| 154 | /* A line segment (p1x, p1y)-(p2x, p2y) intersects the line x = x_arg. |
| 155 | * Compute the y coordinate of the intersection. |
| 156 | */ |
| 157 | static GLfloat |
| 158 | clip_intersect_y(GLfloat p1x, GLfloat p1y, GLfloat p2x, GLfloat p2y, |
| 159 | GLfloat x_arg) |
| 160 | { |
| 161 | GLfloat a; |
| 162 | GLfloat diff = float_difference(p1x, p2x); |
| 163 | |
| 164 | /* Practically vertical line segment, yet the end points have already |
| 165 | * been determined to be on different sides of the line. Therefore |
| 166 | * the line segment is part of the line and intersects everywhere. |
| 167 | * Return the end point, so we use the whole line segment. |
| 168 | */ |
| 169 | if (diff == 0.0f) |
| 170 | return p2y; |
| 171 | |
| 172 | a = (x_arg - p2x) / diff; |
| 173 | return p2y + (p1y - p2y) * a; |
| 174 | } |
| 175 | |
| 176 | /* A line segment (p1x, p1y)-(p2x, p2y) intersects the line y = y_arg. |
| 177 | * Compute the x coordinate of the intersection. |
| 178 | */ |
| 179 | static GLfloat |
| 180 | clip_intersect_x(GLfloat p1x, GLfloat p1y, GLfloat p2x, GLfloat p2y, |
| 181 | GLfloat y_arg) |
| 182 | { |
| 183 | GLfloat a; |
| 184 | GLfloat diff = float_difference(p1y, p2y); |
| 185 | |
| 186 | /* Practically horizontal line segment, yet the end points have already |
| 187 | * been determined to be on different sides of the line. Therefore |
| 188 | * the line segment is part of the line and intersects everywhere. |
| 189 | * Return the end point, so we use the whole line segment. |
| 190 | */ |
| 191 | if (diff == 0.0f) |
| 192 | return p2x; |
| 193 | |
| 194 | a = (y_arg - p2y) / diff; |
| 195 | return p2x + (p1x - p2x) * a; |
| 196 | } |
| 197 | |
| 198 | enum path_transition { |
| 199 | PATH_TRANSITION_OUT_TO_OUT = 0, |
| 200 | PATH_TRANSITION_OUT_TO_IN = 1, |
| 201 | PATH_TRANSITION_IN_TO_OUT = 2, |
| 202 | PATH_TRANSITION_IN_TO_IN = 3, |
| 203 | }; |
| 204 | |
| 205 | static void |
| 206 | clip_append_vertex(struct clip_context *ctx, GLfloat x, GLfloat y) |
| 207 | { |
| 208 | *ctx->vertices.x++ = x; |
| 209 | *ctx->vertices.y++ = y; |
| 210 | } |
| 211 | |
| 212 | static enum path_transition |
| 213 | path_transition_left_edge(struct clip_context *ctx, GLfloat x, GLfloat y) |
| 214 | { |
| 215 | return ((ctx->prev.x >= ctx->clip.x1) << 1) | (x >= ctx->clip.x1); |
| 216 | } |
| 217 | |
| 218 | static enum path_transition |
| 219 | path_transition_right_edge(struct clip_context *ctx, GLfloat x, GLfloat y) |
| 220 | { |
| 221 | return ((ctx->prev.x < ctx->clip.x2) << 1) | (x < ctx->clip.x2); |
| 222 | } |
| 223 | |
| 224 | static enum path_transition |
| 225 | path_transition_top_edge(struct clip_context *ctx, GLfloat x, GLfloat y) |
| 226 | { |
| 227 | return ((ctx->prev.y >= ctx->clip.y1) << 1) | (y >= ctx->clip.y1); |
| 228 | } |
| 229 | |
| 230 | static enum path_transition |
| 231 | path_transition_bottom_edge(struct clip_context *ctx, GLfloat x, GLfloat y) |
| 232 | { |
| 233 | return ((ctx->prev.y < ctx->clip.y2) << 1) | (y < ctx->clip.y2); |
| 234 | } |
| 235 | |
| 236 | static void |
| 237 | clip_polygon_leftright(struct clip_context *ctx, |
| 238 | enum path_transition transition, |
| 239 | GLfloat x, GLfloat y, GLfloat clip_x) |
| 240 | { |
| 241 | GLfloat yi; |
| 242 | |
| 243 | switch (transition) { |
| 244 | case PATH_TRANSITION_IN_TO_IN: |
| 245 | clip_append_vertex(ctx, x, y); |
| 246 | break; |
| 247 | case PATH_TRANSITION_IN_TO_OUT: |
| 248 | yi = clip_intersect_y(ctx->prev.x, ctx->prev.y, x, y, clip_x); |
| 249 | clip_append_vertex(ctx, clip_x, yi); |
| 250 | break; |
| 251 | case PATH_TRANSITION_OUT_TO_IN: |
| 252 | yi = clip_intersect_y(ctx->prev.x, ctx->prev.y, x, y, clip_x); |
| 253 | clip_append_vertex(ctx, clip_x, yi); |
| 254 | clip_append_vertex(ctx, x, y); |
| 255 | break; |
| 256 | case PATH_TRANSITION_OUT_TO_OUT: |
| 257 | /* nothing */ |
| 258 | break; |
| 259 | default: |
| 260 | assert(0 && "bad enum path_transition"); |
| 261 | } |
| 262 | |
| 263 | ctx->prev.x = x; |
| 264 | ctx->prev.y = y; |
| 265 | } |
| 266 | |
| 267 | static void |
| 268 | clip_polygon_topbottom(struct clip_context *ctx, |
| 269 | enum path_transition transition, |
| 270 | GLfloat x, GLfloat y, GLfloat clip_y) |
| 271 | { |
| 272 | GLfloat xi; |
| 273 | |
| 274 | switch (transition) { |
| 275 | case PATH_TRANSITION_IN_TO_IN: |
| 276 | clip_append_vertex(ctx, x, y); |
| 277 | break; |
| 278 | case PATH_TRANSITION_IN_TO_OUT: |
| 279 | xi = clip_intersect_x(ctx->prev.x, ctx->prev.y, x, y, clip_y); |
| 280 | clip_append_vertex(ctx, xi, clip_y); |
| 281 | break; |
| 282 | case PATH_TRANSITION_OUT_TO_IN: |
| 283 | xi = clip_intersect_x(ctx->prev.x, ctx->prev.y, x, y, clip_y); |
| 284 | clip_append_vertex(ctx, xi, clip_y); |
| 285 | clip_append_vertex(ctx, x, y); |
| 286 | break; |
| 287 | case PATH_TRANSITION_OUT_TO_OUT: |
| 288 | /* nothing */ |
| 289 | break; |
| 290 | default: |
| 291 | assert(0 && "bad enum path_transition"); |
| 292 | } |
| 293 | |
| 294 | ctx->prev.x = x; |
| 295 | ctx->prev.y = y; |
| 296 | } |
| 297 | |
| 298 | static void |
| 299 | clip_context_prepare(struct clip_context *ctx, const struct polygon8 *src, |
| 300 | GLfloat *dst_x, GLfloat *dst_y) |
| 301 | { |
| 302 | ctx->prev.x = src->x[src->n - 1]; |
| 303 | ctx->prev.y = src->y[src->n - 1]; |
| 304 | ctx->vertices.x = dst_x; |
| 305 | ctx->vertices.y = dst_y; |
| 306 | } |
| 307 | |
| 308 | static int |
| 309 | clip_polygon_left(struct clip_context *ctx, const struct polygon8 *src, |
| 310 | GLfloat *dst_x, GLfloat *dst_y) |
| 311 | { |
| 312 | enum path_transition trans; |
| 313 | int i; |
| 314 | |
| 315 | clip_context_prepare(ctx, src, dst_x, dst_y); |
| 316 | for (i = 0; i < src->n; i++) { |
| 317 | trans = path_transition_left_edge(ctx, src->x[i], src->y[i]); |
| 318 | clip_polygon_leftright(ctx, trans, src->x[i], src->y[i], |
| 319 | ctx->clip.x1); |
| 320 | } |
| 321 | return ctx->vertices.x - dst_x; |
| 322 | } |
| 323 | |
| 324 | static int |
| 325 | clip_polygon_right(struct clip_context *ctx, const struct polygon8 *src, |
| 326 | GLfloat *dst_x, GLfloat *dst_y) |
| 327 | { |
| 328 | enum path_transition trans; |
| 329 | int i; |
| 330 | |
| 331 | clip_context_prepare(ctx, src, dst_x, dst_y); |
| 332 | for (i = 0; i < src->n; i++) { |
| 333 | trans = path_transition_right_edge(ctx, src->x[i], src->y[i]); |
| 334 | clip_polygon_leftright(ctx, trans, src->x[i], src->y[i], |
| 335 | ctx->clip.x2); |
| 336 | } |
| 337 | return ctx->vertices.x - dst_x; |
| 338 | } |
| 339 | |
| 340 | static int |
| 341 | clip_polygon_top(struct clip_context *ctx, const struct polygon8 *src, |
| 342 | GLfloat *dst_x, GLfloat *dst_y) |
| 343 | { |
| 344 | enum path_transition trans; |
| 345 | int i; |
| 346 | |
| 347 | clip_context_prepare(ctx, src, dst_x, dst_y); |
| 348 | for (i = 0; i < src->n; i++) { |
| 349 | trans = path_transition_top_edge(ctx, src->x[i], src->y[i]); |
| 350 | clip_polygon_topbottom(ctx, trans, src->x[i], src->y[i], |
| 351 | ctx->clip.y1); |
| 352 | } |
| 353 | return ctx->vertices.x - dst_x; |
| 354 | } |
| 355 | |
| 356 | static int |
| 357 | clip_polygon_bottom(struct clip_context *ctx, const struct polygon8 *src, |
| 358 | GLfloat *dst_x, GLfloat *dst_y) |
| 359 | { |
| 360 | enum path_transition trans; |
| 361 | int i; |
| 362 | |
| 363 | clip_context_prepare(ctx, src, dst_x, dst_y); |
| 364 | for (i = 0; i < src->n; i++) { |
| 365 | trans = path_transition_bottom_edge(ctx, src->x[i], src->y[i]); |
| 366 | clip_polygon_topbottom(ctx, trans, src->x[i], src->y[i], |
| 367 | ctx->clip.y2); |
| 368 | } |
| 369 | return ctx->vertices.x - dst_x; |
| 370 | } |
| 371 | |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 372 | #define max(a, b) (((a) > (b)) ? (a) : (b)) |
| 373 | #define min(a, b) (((a) > (b)) ? (b) : (a)) |
| 374 | #define clip(x, a, b) min(max(x, a), b) |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 375 | |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 376 | /* |
| 377 | * Compute the boundary vertices of the intersection of the global coordinate |
| 378 | * aligned rectangle 'rect', and an arbitrary quadrilateral produced from |
| 379 | * 'surf_rect' when transformed from surface coordinates into global coordinates. |
| 380 | * The vertices are written to 'ex' and 'ey', and the return value is the |
| 381 | * number of vertices. Vertices are produced in clockwise winding order. |
| 382 | * Guarantees to produce either zero vertices, or 3-8 vertices with non-zero |
| 383 | * polygon area. |
| 384 | */ |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 385 | static int |
| 386 | calculate_edges(struct weston_surface *es, pixman_box32_t *rect, |
| 387 | pixman_box32_t *surf_rect, GLfloat *ex, GLfloat *ey) |
| 388 | { |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 389 | struct polygon8 polygon; |
| 390 | struct clip_context ctx; |
| 391 | int i, n; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 392 | GLfloat min_x, max_x, min_y, max_y; |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 393 | struct polygon8 surf = { |
| 394 | { surf_rect->x1, surf_rect->x2, surf_rect->x2, surf_rect->x1 }, |
| 395 | { surf_rect->y1, surf_rect->y1, surf_rect->y2, surf_rect->y2 }, |
| 396 | 4 |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 397 | }; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 398 | |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 399 | ctx.clip.x1 = rect->x1; |
| 400 | ctx.clip.y1 = rect->y1; |
| 401 | ctx.clip.x2 = rect->x2; |
| 402 | ctx.clip.y2 = rect->y2; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 403 | |
| 404 | /* transform surface to screen space: */ |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 405 | for (i = 0; i < surf.n; i++) |
| 406 | weston_surface_to_global_float(es, surf.x[i], surf.y[i], |
| 407 | &surf.x[i], &surf.y[i]); |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 408 | |
| 409 | /* find bounding box: */ |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 410 | min_x = max_x = surf.x[0]; |
| 411 | min_y = max_y = surf.y[0]; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 412 | |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 413 | for (i = 1; i < surf.n; i++) { |
| 414 | min_x = min(min_x, surf.x[i]); |
| 415 | max_x = max(max_x, surf.x[i]); |
| 416 | min_y = min(min_y, surf.y[i]); |
| 417 | max_y = max(max_y, surf.y[i]); |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | /* First, simple bounding box check to discard early transformed |
| 421 | * surface rects that do not intersect with the clip region: |
| 422 | */ |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 423 | if ((min_x >= ctx.clip.x2) || (max_x <= ctx.clip.x1) || |
| 424 | (min_y >= ctx.clip.y2) || (max_y <= ctx.clip.y1)) |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 425 | return 0; |
| 426 | |
| 427 | /* Simple case, bounding box edges are parallel to surface edges, |
| 428 | * there will be only four edges. We just need to clip the surface |
| 429 | * vertices to the clip rect bounds: |
| 430 | */ |
| 431 | if (!es->transform.enabled) { |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 432 | for (i = 0; i < surf.n; i++) { |
| 433 | ex[i] = clip(surf.x[i], ctx.clip.x1, ctx.clip.x2); |
| 434 | ey[i] = clip(surf.y[i], ctx.clip.y1, ctx.clip.y2); |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 435 | } |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 436 | return surf.n; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 437 | } |
| 438 | |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 439 | /* Transformed case: use a general polygon clipping algorithm to |
| 440 | * clip the surface rectangle with each side of 'rect'. |
| 441 | * The algorithm is Sutherland-Hodgman, as explained in |
| 442 | * http://www.codeguru.com/cpp/misc/misc/graphics/article.php/c8965/Polygon-Clipping.htm |
| 443 | * but without looking at any of that code. |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 444 | */ |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 445 | polygon.n = clip_polygon_left(&ctx, &surf, polygon.x, polygon.y); |
| 446 | surf.n = clip_polygon_right(&ctx, &polygon, surf.x, surf.y); |
| 447 | polygon.n = clip_polygon_top(&ctx, &surf, polygon.x, polygon.y); |
| 448 | surf.n = clip_polygon_bottom(&ctx, &polygon, surf.x, surf.y); |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 449 | |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 450 | /* Get rid of duplicate vertices */ |
| 451 | ex[0] = surf.x[0]; |
| 452 | ey[0] = surf.y[0]; |
| 453 | n = 1; |
| 454 | for (i = 1; i < surf.n; i++) { |
| 455 | if (float_difference(ex[n - 1], surf.x[i]) == 0.0f && |
| 456 | float_difference(ey[n - 1], surf.y[i]) == 0.0f) |
| 457 | continue; |
| 458 | ex[n] = surf.x[i]; |
| 459 | ey[n] = surf.y[i]; |
| 460 | n++; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 461 | } |
Pekka Paalanen | 0d64a0f | 2012-09-11 17:02:05 +0300 | [diff] [blame] | 462 | if (float_difference(ex[n - 1], surf.x[0]) == 0.0f && |
| 463 | float_difference(ey[n - 1], surf.y[0]) == 0.0f) |
| 464 | n--; |
| 465 | |
| 466 | if (n < 3) |
| 467 | return 0; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 468 | |
| 469 | return n; |
| 470 | } |
| 471 | |
| 472 | static int |
| 473 | texture_region(struct weston_surface *es, pixman_region32_t *region, |
| 474 | pixman_region32_t *surf_region) |
| 475 | { |
| 476 | struct weston_compositor *ec = es->compositor; |
| 477 | GLfloat *v, inv_width, inv_height; |
| 478 | unsigned int *vtxcnt, nvtx = 0; |
| 479 | pixman_box32_t *rects, *surf_rects; |
| 480 | int i, j, k, nrects, nsurf; |
| 481 | |
| 482 | rects = pixman_region32_rectangles(region, &nrects); |
| 483 | surf_rects = pixman_region32_rectangles(surf_region, &nsurf); |
| 484 | |
| 485 | /* worst case we can have 8 vertices per rect (ie. clipped into |
| 486 | * an octagon): |
| 487 | */ |
| 488 | v = wl_array_add(&ec->vertices, nrects * nsurf * 8 * 4 * sizeof *v); |
| 489 | vtxcnt = wl_array_add(&ec->vtxcnt, nrects * nsurf * sizeof *vtxcnt); |
| 490 | |
| 491 | inv_width = 1.0 / es->pitch; |
| 492 | inv_height = 1.0 / es->geometry.height; |
| 493 | |
| 494 | for (i = 0; i < nrects; i++) { |
| 495 | pixman_box32_t *rect = &rects[i]; |
| 496 | for (j = 0; j < nsurf; j++) { |
| 497 | pixman_box32_t *surf_rect = &surf_rects[j]; |
| 498 | GLfloat sx, sy; |
| 499 | GLfloat ex[8], ey[8]; /* edge points in screen space */ |
| 500 | int n; |
| 501 | |
| 502 | /* The transformed surface, after clipping to the clip region, |
| 503 | * can have as many as eight sides, emitted as a triangle-fan. |
| 504 | * The first vertex in the triangle fan can be chosen arbitrarily, |
| 505 | * since the area is guaranteed to be convex. |
| 506 | * |
| 507 | * If a corner of the transformed surface falls outside of the |
| 508 | * clip region, instead of emitting one vertex for the corner |
| 509 | * of the surface, up to two are emitted for two corresponding |
| 510 | * intersection point(s) between the surface and the clip region. |
| 511 | * |
| 512 | * To do this, we first calculate the (up to eight) points that |
| 513 | * form the intersection of the clip rect and the transformed |
| 514 | * surface. |
| 515 | */ |
| 516 | n = calculate_edges(es, rect, surf_rect, ex, ey); |
| 517 | if (n < 3) |
| 518 | continue; |
| 519 | |
| 520 | /* emit edge points: */ |
| 521 | for (k = 0; k < n; k++) { |
| 522 | weston_surface_from_global_float(es, ex[k], ey[k], &sx, &sy); |
| 523 | /* position: */ |
| 524 | *(v++) = ex[k]; |
| 525 | *(v++) = ey[k]; |
| 526 | /* texcoord: */ |
| 527 | *(v++) = sx * inv_width; |
| 528 | *(v++) = sy * inv_height; |
| 529 | } |
| 530 | |
| 531 | vtxcnt[nvtx++] = n; |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | return nvtx; |
| 536 | } |
| 537 | |
| 538 | static void |
| 539 | triangle_fan_debug(struct weston_surface *surface, int first, int count) |
| 540 | { |
| 541 | struct weston_compositor *compositor = surface->compositor; |
| 542 | int i; |
| 543 | GLushort *buffer; |
| 544 | GLushort *index; |
| 545 | int nelems; |
| 546 | static int color_idx = 0; |
| 547 | static const GLfloat color[][4] = { |
| 548 | { 1.0, 0.0, 0.0, 1.0 }, |
| 549 | { 0.0, 1.0, 0.0, 1.0 }, |
| 550 | { 0.0, 0.0, 1.0, 1.0 }, |
| 551 | { 1.0, 1.0, 1.0, 1.0 }, |
| 552 | }; |
| 553 | |
| 554 | nelems = (count - 1 + count - 2) * 2; |
| 555 | |
| 556 | buffer = malloc(sizeof(GLushort) * nelems); |
| 557 | index = buffer; |
| 558 | |
| 559 | for (i = 1; i < count; i++) { |
| 560 | *index++ = first; |
| 561 | *index++ = first + i; |
| 562 | } |
| 563 | |
| 564 | for (i = 2; i < count; i++) { |
| 565 | *index++ = first + i - 1; |
| 566 | *index++ = first + i; |
| 567 | } |
| 568 | |
| 569 | glUseProgram(compositor->solid_shader.program); |
| 570 | glUniform4fv(compositor->solid_shader.color_uniform, 1, |
| 571 | color[color_idx++ % ARRAY_LENGTH(color)]); |
| 572 | glDrawElements(GL_LINES, nelems, GL_UNSIGNED_SHORT, buffer); |
| 573 | glUseProgram(compositor->current_shader->program); |
| 574 | free(buffer); |
| 575 | } |
| 576 | |
| 577 | static void |
| 578 | repaint_region(struct weston_surface *es, pixman_region32_t *region, |
| 579 | pixman_region32_t *surf_region) |
| 580 | { |
| 581 | struct weston_compositor *ec = es->compositor; |
| 582 | GLfloat *v; |
| 583 | unsigned int *vtxcnt; |
| 584 | int i, first, nfans; |
| 585 | |
| 586 | /* The final region to be painted is the intersection of |
| 587 | * 'region' and 'surf_region'. However, 'region' is in the global |
| 588 | * coordinates, and 'surf_region' is in the surface-local |
| 589 | * coordinates. texture_region() will iterate over all pairs of |
| 590 | * rectangles from both regions, compute the intersection |
| 591 | * polygon for each pair, and store it as a triangle fan if |
| 592 | * it has a non-zero area (at least 3 vertices, actually). |
| 593 | */ |
| 594 | nfans = texture_region(es, region, surf_region); |
| 595 | |
| 596 | v = ec->vertices.data; |
| 597 | vtxcnt = ec->vtxcnt.data; |
| 598 | |
| 599 | /* position: */ |
| 600 | glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]); |
| 601 | glEnableVertexAttribArray(0); |
| 602 | |
| 603 | /* texcoord: */ |
| 604 | glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]); |
| 605 | glEnableVertexAttribArray(1); |
| 606 | |
| 607 | for (i = 0, first = 0; i < nfans; i++) { |
| 608 | glDrawArrays(GL_TRIANGLE_FAN, first, vtxcnt[i]); |
| 609 | if (ec->fan_debug) |
| 610 | triangle_fan_debug(es, first, vtxcnt[i]); |
| 611 | first += vtxcnt[i]; |
| 612 | } |
| 613 | |
| 614 | glDisableVertexAttribArray(1); |
| 615 | glDisableVertexAttribArray(0); |
| 616 | |
| 617 | ec->vertices.size = 0; |
| 618 | ec->vtxcnt.size = 0; |
| 619 | } |
| 620 | |
John Kåre Alsaker | a95b2d6 | 2012-11-13 19:10:21 +0100 | [diff] [blame] | 621 | static int |
| 622 | use_output(struct weston_output *output) |
| 623 | { |
| 624 | static int errored; |
| 625 | struct gles2_output_state *go = get_output_state(output); |
| 626 | struct gles2_renderer *gr = get_renderer(output->compositor); |
| 627 | EGLBoolean ret; |
| 628 | |
| 629 | ret = eglMakeCurrent(gr->egl_display, go->egl_surface, |
| 630 | go->egl_surface, gr->egl_context); |
| 631 | |
| 632 | if (ret == EGL_FALSE) { |
| 633 | if (errored) |
| 634 | return -1; |
| 635 | errored = 1; |
| 636 | weston_log("Failed to make EGL context current.\n"); |
| 637 | print_egl_error_state(); |
| 638 | return -1; |
| 639 | } |
| 640 | |
| 641 | return 0; |
| 642 | } |
| 643 | |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 644 | static void |
| 645 | weston_compositor_use_shader(struct weston_compositor *compositor, |
| 646 | struct weston_shader *shader) |
| 647 | { |
| 648 | if (compositor->current_shader == shader) |
| 649 | return; |
| 650 | |
| 651 | glUseProgram(shader->program); |
| 652 | compositor->current_shader = shader; |
| 653 | } |
| 654 | |
| 655 | static void |
| 656 | weston_shader_uniforms(struct weston_shader *shader, |
| 657 | struct weston_surface *surface, |
| 658 | struct weston_output *output) |
| 659 | { |
| 660 | int i; |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 661 | struct gles2_surface_state *gs = get_surface_state(surface); |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 662 | |
| 663 | glUniformMatrix4fv(shader->proj_uniform, |
| 664 | 1, GL_FALSE, output->matrix.d); |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 665 | glUniform4fv(shader->color_uniform, 1, gs->color); |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 666 | glUniform1f(shader->alpha_uniform, surface->alpha); |
| 667 | |
| 668 | for (i = 0; i < surface->num_textures; i++) |
| 669 | glUniform1i(shader->tex_uniforms[i], i); |
| 670 | } |
| 671 | |
| 672 | static void |
| 673 | draw_surface(struct weston_surface *es, struct weston_output *output, |
| 674 | pixman_region32_t *damage) /* in global coordinates */ |
| 675 | { |
| 676 | struct weston_compositor *ec = es->compositor; |
| 677 | /* repaint bounding region in global coordinates: */ |
| 678 | pixman_region32_t repaint; |
| 679 | /* non-opaque region in surface coordinates: */ |
| 680 | pixman_region32_t surface_blend; |
Ander Conselvan de Oliveira | 8ea818f | 2012-09-14 16:12:03 +0300 | [diff] [blame] | 681 | pixman_region32_t *buffer_damage; |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 682 | GLint filter; |
| 683 | int i; |
| 684 | |
| 685 | pixman_region32_init(&repaint); |
| 686 | pixman_region32_intersect(&repaint, |
| 687 | &es->transform.boundingbox, damage); |
| 688 | pixman_region32_subtract(&repaint, &repaint, &es->clip); |
| 689 | |
| 690 | if (!pixman_region32_not_empty(&repaint)) |
| 691 | goto out; |
| 692 | |
Ander Conselvan de Oliveira | 8ea818f | 2012-09-14 16:12:03 +0300 | [diff] [blame] | 693 | buffer_damage = &output->buffer_damage[output->current_buffer]; |
| 694 | pixman_region32_subtract(buffer_damage, buffer_damage, &repaint); |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 695 | |
| 696 | glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); |
| 697 | |
| 698 | if (ec->fan_debug) { |
| 699 | weston_compositor_use_shader(ec, &ec->solid_shader); |
| 700 | weston_shader_uniforms(&ec->solid_shader, es, output); |
| 701 | } |
| 702 | |
| 703 | weston_compositor_use_shader(ec, es->shader); |
| 704 | weston_shader_uniforms(es->shader, es, output); |
| 705 | |
| 706 | if (es->transform.enabled || output->zoom.active) |
| 707 | filter = GL_LINEAR; |
| 708 | else |
| 709 | filter = GL_NEAREST; |
| 710 | |
| 711 | for (i = 0; i < es->num_textures; i++) { |
| 712 | glActiveTexture(GL_TEXTURE0 + i); |
| 713 | glBindTexture(es->target, es->textures[i]); |
| 714 | glTexParameteri(es->target, GL_TEXTURE_MIN_FILTER, filter); |
| 715 | glTexParameteri(es->target, GL_TEXTURE_MAG_FILTER, filter); |
| 716 | } |
| 717 | |
| 718 | /* blended region is whole surface minus opaque region: */ |
| 719 | pixman_region32_init_rect(&surface_blend, 0, 0, |
| 720 | es->geometry.width, es->geometry.height); |
| 721 | pixman_region32_subtract(&surface_blend, &surface_blend, &es->opaque); |
| 722 | |
| 723 | if (pixman_region32_not_empty(&es->opaque)) { |
| 724 | if (es->shader == &ec->texture_shader_rgba) { |
| 725 | /* Special case for RGBA textures with possibly |
| 726 | * bad data in alpha channel: use the shader |
| 727 | * that forces texture alpha = 1.0. |
| 728 | * Xwayland surfaces need this. |
| 729 | */ |
| 730 | weston_compositor_use_shader(ec, &ec->texture_shader_rgbx); |
| 731 | weston_shader_uniforms(&ec->texture_shader_rgbx, es, output); |
| 732 | } |
| 733 | |
| 734 | if (es->alpha < 1.0) |
| 735 | glEnable(GL_BLEND); |
| 736 | else |
| 737 | glDisable(GL_BLEND); |
| 738 | |
| 739 | repaint_region(es, &repaint, &es->opaque); |
| 740 | } |
| 741 | |
| 742 | if (pixman_region32_not_empty(&surface_blend)) { |
| 743 | weston_compositor_use_shader(ec, es->shader); |
| 744 | glEnable(GL_BLEND); |
| 745 | repaint_region(es, &repaint, &surface_blend); |
| 746 | } |
| 747 | |
| 748 | pixman_region32_fini(&surface_blend); |
| 749 | |
| 750 | out: |
| 751 | pixman_region32_fini(&repaint); |
| 752 | } |
| 753 | |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 754 | static void |
| 755 | repaint_surfaces(struct weston_output *output, pixman_region32_t *damage) |
| 756 | { |
| 757 | struct weston_compositor *compositor = output->compositor; |
| 758 | struct weston_surface *surface; |
| 759 | |
| 760 | wl_list_for_each_reverse(surface, &compositor->surface_list, link) |
| 761 | if (surface->plane == &compositor->primary_plane) |
Kristian Høgsberg | ecf6ede | 2012-09-05 21:59:35 -0400 | [diff] [blame] | 762 | draw_surface(surface, output, damage); |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 763 | } |
| 764 | |
John Kåre Alsaker | 4415450 | 2012-11-13 19:10:20 +0100 | [diff] [blame] | 765 | |
| 766 | static int |
| 767 | texture_border(struct weston_output *output) |
| 768 | { |
| 769 | struct weston_compositor *ec = output->compositor; |
| 770 | struct gles2_renderer *gr = get_renderer(ec); |
| 771 | GLfloat *d; |
| 772 | unsigned int *p; |
| 773 | int i, j, k, n; |
| 774 | GLfloat x[4], y[4], u[4], v[4]; |
| 775 | |
| 776 | x[0] = -gr->border.left; |
| 777 | x[1] = 0; |
| 778 | x[2] = output->current->width; |
| 779 | x[3] = output->current->width + gr->border.right; |
| 780 | |
| 781 | y[0] = -gr->border.top; |
| 782 | y[1] = 0; |
| 783 | y[2] = output->current->height; |
| 784 | y[3] = output->current->height + gr->border.bottom; |
| 785 | |
| 786 | u[0] = 0.0; |
| 787 | u[1] = (GLfloat) gr->border.left / gr->border.width; |
| 788 | u[2] = (GLfloat) (gr->border.width - gr->border.right) / gr->border.width; |
| 789 | u[3] = 1.0; |
| 790 | |
| 791 | v[0] = 0.0; |
| 792 | v[1] = (GLfloat) gr->border.top / gr->border.height; |
| 793 | v[2] = (GLfloat) (gr->border.height - gr->border.bottom) / gr->border.height; |
| 794 | v[3] = 1.0; |
| 795 | |
| 796 | n = 8; |
| 797 | d = wl_array_add(&ec->vertices, n * 16 * sizeof *d); |
| 798 | p = wl_array_add(&ec->indices, n * 6 * sizeof *p); |
| 799 | |
| 800 | k = 0; |
| 801 | for (i = 0; i < 3; i++) |
| 802 | for (j = 0; j < 3; j++) { |
| 803 | |
| 804 | if (i == 1 && j == 1) |
| 805 | continue; |
| 806 | |
| 807 | d[ 0] = x[i]; |
| 808 | d[ 1] = y[j]; |
| 809 | d[ 2] = u[i]; |
| 810 | d[ 3] = v[j]; |
| 811 | |
| 812 | d[ 4] = x[i]; |
| 813 | d[ 5] = y[j + 1]; |
| 814 | d[ 6] = u[i]; |
| 815 | d[ 7] = v[j + 1]; |
| 816 | |
| 817 | d[ 8] = x[i + 1]; |
| 818 | d[ 9] = y[j]; |
| 819 | d[10] = u[i + 1]; |
| 820 | d[11] = v[j]; |
| 821 | |
| 822 | d[12] = x[i + 1]; |
| 823 | d[13] = y[j + 1]; |
| 824 | d[14] = u[i + 1]; |
| 825 | d[15] = v[j + 1]; |
| 826 | |
| 827 | p[0] = k + 0; |
| 828 | p[1] = k + 1; |
| 829 | p[2] = k + 2; |
| 830 | p[3] = k + 2; |
| 831 | p[4] = k + 1; |
| 832 | p[5] = k + 3; |
| 833 | |
| 834 | d += 16; |
| 835 | p += 6; |
| 836 | k += 4; |
| 837 | } |
| 838 | |
| 839 | return k / 4; |
| 840 | } |
| 841 | |
| 842 | static void |
| 843 | draw_border(struct weston_output *output) |
| 844 | { |
| 845 | struct weston_compositor *ec = output->compositor; |
| 846 | struct gles2_renderer *gr = get_renderer(ec); |
| 847 | struct weston_shader *shader = &ec->texture_shader_rgba; |
| 848 | GLfloat *v; |
| 849 | int n; |
| 850 | |
| 851 | glDisable(GL_BLEND); |
| 852 | glUseProgram(shader->program); |
| 853 | ec->current_shader = shader; |
| 854 | |
| 855 | glUniformMatrix4fv(shader->proj_uniform, |
| 856 | 1, GL_FALSE, output->matrix.d); |
| 857 | |
| 858 | glUniform1i(shader->tex_uniforms[0], 0); |
| 859 | glUniform1f(shader->alpha_uniform, 1); |
| 860 | |
| 861 | n = texture_border(output); |
| 862 | |
| 863 | glActiveTexture(GL_TEXTURE0); |
| 864 | glBindTexture(GL_TEXTURE_2D, gr->border.texture); |
| 865 | |
| 866 | v = ec->vertices.data; |
| 867 | glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]); |
| 868 | glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]); |
| 869 | glEnableVertexAttribArray(0); |
| 870 | glEnableVertexAttribArray(1); |
| 871 | |
| 872 | glDrawElements(GL_TRIANGLES, n * 6, |
| 873 | GL_UNSIGNED_INT, ec->indices.data); |
| 874 | |
| 875 | glDisableVertexAttribArray(1); |
| 876 | glDisableVertexAttribArray(0); |
| 877 | |
| 878 | ec->vertices.size = 0; |
| 879 | ec->indices.size = 0; |
| 880 | } |
| 881 | |
Kristian Høgsberg | fa1be02 | 2012-09-05 22:49:55 -0400 | [diff] [blame] | 882 | static void |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 883 | gles2_renderer_repaint_output(struct weston_output *output, |
| 884 | pixman_region32_t *output_damage) |
| 885 | { |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 886 | struct gles2_output_state *go = get_output_state(output); |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 887 | struct weston_compositor *compositor = output->compositor; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 888 | struct gles2_renderer *gr = get_renderer(compositor); |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 889 | EGLBoolean ret; |
| 890 | static int errored; |
Ander Conselvan de Oliveira | 8ea818f | 2012-09-14 16:12:03 +0300 | [diff] [blame] | 891 | int32_t width, height, i; |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 892 | |
| 893 | width = output->current->width + |
| 894 | output->border.left + output->border.right; |
| 895 | height = output->current->height + |
| 896 | output->border.top + output->border.bottom; |
| 897 | |
| 898 | glViewport(0, 0, width, height); |
| 899 | |
John Kåre Alsaker | a95b2d6 | 2012-11-13 19:10:21 +0100 | [diff] [blame] | 900 | if (use_output(output) < 0) |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 901 | return; |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 902 | |
| 903 | /* if debugging, redraw everything outside the damage to clean up |
| 904 | * debug lines from the previous draw on this buffer: |
| 905 | */ |
| 906 | if (compositor->fan_debug) { |
| 907 | pixman_region32_t undamaged; |
| 908 | pixman_region32_init(&undamaged); |
| 909 | pixman_region32_subtract(&undamaged, &output->region, |
| 910 | output_damage); |
| 911 | compositor->fan_debug = 0; |
| 912 | repaint_surfaces(output, &undamaged); |
| 913 | compositor->fan_debug = 1; |
| 914 | pixman_region32_fini(&undamaged); |
| 915 | } |
| 916 | |
Ander Conselvan de Oliveira | 8ea818f | 2012-09-14 16:12:03 +0300 | [diff] [blame] | 917 | for (i = 0; i < 2; i++) |
| 918 | pixman_region32_union(&output->buffer_damage[i], |
| 919 | &output->buffer_damage[i], |
| 920 | output_damage); |
| 921 | |
| 922 | pixman_region32_union(output_damage, output_damage, |
| 923 | &output->buffer_damage[output->current_buffer]); |
| 924 | |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 925 | repaint_surfaces(output, output_damage); |
| 926 | |
John Kåre Alsaker | 4415450 | 2012-11-13 19:10:20 +0100 | [diff] [blame] | 927 | if (gr->border.texture) |
| 928 | draw_border(output); |
| 929 | |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 930 | wl_signal_emit(&output->frame_signal, output); |
| 931 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 932 | ret = eglSwapBuffers(gr->egl_display, go->egl_surface); |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 933 | if (ret == EGL_FALSE && !errored) { |
| 934 | errored = 1; |
| 935 | weston_log("Failed in eglSwapBuffers.\n"); |
| 936 | print_egl_error_state(); |
| 937 | } |
| 938 | |
Ander Conselvan de Oliveira | 8ea818f | 2012-09-14 16:12:03 +0300 | [diff] [blame] | 939 | output->current_buffer ^= 1; |
| 940 | |
Kristian Høgsberg | d7c1726 | 2012-09-05 21:54:15 -0400 | [diff] [blame] | 941 | } |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 942 | |
John Kåre Alsaker | a95b2d6 | 2012-11-13 19:10:21 +0100 | [diff] [blame] | 943 | static int |
| 944 | gles2_renderer_read_pixels(struct weston_output *output, |
| 945 | pixman_format_code_t format, void *pixels, |
| 946 | uint32_t x, uint32_t y, |
| 947 | uint32_t width, uint32_t height) |
| 948 | { |
| 949 | GLenum gl_format; |
| 950 | |
| 951 | switch (format) { |
| 952 | case PIXMAN_a8r8g8b8: |
| 953 | gl_format = GL_BGRA_EXT; |
| 954 | break; |
| 955 | case PIXMAN_a8b8g8r8: |
| 956 | gl_format = GL_RGBA; |
| 957 | break; |
| 958 | default: |
| 959 | return -1; |
| 960 | } |
| 961 | |
| 962 | if (use_output(output) < 0) |
| 963 | return -1; |
| 964 | |
| 965 | glPixelStorei(GL_PACK_ALIGNMENT, 1); |
| 966 | glReadPixels(x, y, width, height, gl_format, |
| 967 | GL_UNSIGNED_BYTE, pixels); |
| 968 | |
| 969 | return 0; |
| 970 | } |
| 971 | |
Kristian Høgsberg | fa1be02 | 2012-09-05 22:49:55 -0400 | [diff] [blame] | 972 | static void |
Kristian Høgsberg | b1fd2d6 | 2012-09-05 22:13:58 -0400 | [diff] [blame] | 973 | gles2_renderer_flush_damage(struct weston_surface *surface) |
| 974 | { |
| 975 | #ifdef GL_UNPACK_ROW_LENGTH |
| 976 | pixman_box32_t *rectangles; |
| 977 | void *data; |
| 978 | int i, n; |
| 979 | #endif |
| 980 | |
Pekka Paalanen | bcdd579 | 2012-11-07 12:25:13 +0200 | [diff] [blame] | 981 | pixman_region32_union(&surface->texture_damage, |
| 982 | &surface->texture_damage, &surface->damage); |
| 983 | |
| 984 | /* Avoid upload, if the texture won't be used this time. |
| 985 | * We still accumulate the damage in texture_damage. |
| 986 | */ |
| 987 | if (surface->plane != &surface->compositor->primary_plane) |
| 988 | return; |
| 989 | |
| 990 | if (!pixman_region32_not_empty(&surface->texture_damage)) |
| 991 | return; |
| 992 | |
Kristian Høgsberg | b1fd2d6 | 2012-09-05 22:13:58 -0400 | [diff] [blame] | 993 | glBindTexture(GL_TEXTURE_2D, surface->textures[0]); |
| 994 | |
| 995 | if (!surface->compositor->has_unpack_subimage) { |
| 996 | glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, |
| 997 | surface->pitch, surface->buffer->height, 0, |
| 998 | GL_BGRA_EXT, GL_UNSIGNED_BYTE, |
| 999 | wl_shm_buffer_get_data(surface->buffer)); |
| 1000 | |
Pekka Paalanen | bcdd579 | 2012-11-07 12:25:13 +0200 | [diff] [blame] | 1001 | goto done; |
Kristian Høgsberg | b1fd2d6 | 2012-09-05 22:13:58 -0400 | [diff] [blame] | 1002 | } |
| 1003 | |
| 1004 | #ifdef GL_UNPACK_ROW_LENGTH |
| 1005 | /* Mesa does not define GL_EXT_unpack_subimage */ |
| 1006 | glPixelStorei(GL_UNPACK_ROW_LENGTH, surface->pitch); |
| 1007 | data = wl_shm_buffer_get_data(surface->buffer); |
Pekka Paalanen | bcdd579 | 2012-11-07 12:25:13 +0200 | [diff] [blame] | 1008 | rectangles = pixman_region32_rectangles(&surface->texture_damage, &n); |
Kristian Høgsberg | b1fd2d6 | 2012-09-05 22:13:58 -0400 | [diff] [blame] | 1009 | for (i = 0; i < n; i++) { |
| 1010 | glPixelStorei(GL_UNPACK_SKIP_PIXELS, rectangles[i].x1); |
| 1011 | glPixelStorei(GL_UNPACK_SKIP_ROWS, rectangles[i].y1); |
| 1012 | glTexSubImage2D(GL_TEXTURE_2D, 0, |
| 1013 | rectangles[i].x1, rectangles[i].y1, |
| 1014 | rectangles[i].x2 - rectangles[i].x1, |
| 1015 | rectangles[i].y2 - rectangles[i].y1, |
| 1016 | GL_BGRA_EXT, GL_UNSIGNED_BYTE, data); |
| 1017 | } |
| 1018 | #endif |
Pekka Paalanen | bcdd579 | 2012-11-07 12:25:13 +0200 | [diff] [blame] | 1019 | |
| 1020 | done: |
| 1021 | pixman_region32_fini(&surface->texture_damage); |
| 1022 | pixman_region32_init(&surface->texture_damage); |
Kristian Høgsberg | b1fd2d6 | 2012-09-05 22:13:58 -0400 | [diff] [blame] | 1023 | } |
| 1024 | |
Kristian Høgsberg | b7b77e6 | 2012-09-05 22:38:18 -0400 | [diff] [blame] | 1025 | static void |
| 1026 | ensure_textures(struct weston_surface *es, int num_textures) |
| 1027 | { |
| 1028 | int i; |
| 1029 | |
| 1030 | if (num_textures <= es->num_textures) |
| 1031 | return; |
| 1032 | |
| 1033 | for (i = es->num_textures; i < num_textures; i++) { |
| 1034 | glGenTextures(1, &es->textures[i]); |
| 1035 | glBindTexture(es->target, es->textures[i]); |
| 1036 | glTexParameteri(es->target, |
| 1037 | GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| 1038 | glTexParameteri(es->target, |
| 1039 | GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| 1040 | } |
| 1041 | es->num_textures = num_textures; |
| 1042 | glBindTexture(es->target, 0); |
| 1043 | } |
| 1044 | |
Kristian Høgsberg | fa1be02 | 2012-09-05 22:49:55 -0400 | [diff] [blame] | 1045 | static void |
Kristian Høgsberg | b7b77e6 | 2012-09-05 22:38:18 -0400 | [diff] [blame] | 1046 | gles2_renderer_attach(struct weston_surface *es, struct wl_buffer *buffer) |
| 1047 | { |
| 1048 | struct weston_compositor *ec = es->compositor; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1049 | struct gles2_renderer *gr = get_renderer(ec); |
Kristian Høgsberg | b7b77e6 | 2012-09-05 22:38:18 -0400 | [diff] [blame] | 1050 | EGLint attribs[3], format; |
| 1051 | int i, num_planes; |
| 1052 | |
| 1053 | if (!buffer) { |
| 1054 | for (i = 0; i < es->num_images; i++) { |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1055 | ec->destroy_image(gr->egl_display, es->images[i]); |
Kristian Høgsberg | b7b77e6 | 2012-09-05 22:38:18 -0400 | [diff] [blame] | 1056 | es->images[i] = NULL; |
| 1057 | } |
| 1058 | es->num_images = 0; |
| 1059 | glDeleteTextures(es->num_textures, es->textures); |
| 1060 | es->num_textures = 0; |
| 1061 | return; |
| 1062 | } |
| 1063 | |
| 1064 | if (wl_buffer_is_shm(buffer)) { |
| 1065 | es->pitch = wl_shm_buffer_get_stride(buffer) / 4; |
| 1066 | es->target = GL_TEXTURE_2D; |
| 1067 | |
| 1068 | ensure_textures(es, 1); |
| 1069 | glBindTexture(GL_TEXTURE_2D, es->textures[0]); |
| 1070 | glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, |
| 1071 | es->pitch, buffer->height, 0, |
| 1072 | GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL); |
| 1073 | if (wl_shm_buffer_get_format(buffer) == WL_SHM_FORMAT_XRGB8888) |
| 1074 | es->shader = &ec->texture_shader_rgbx; |
| 1075 | else |
| 1076 | es->shader = &ec->texture_shader_rgba; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1077 | } else if (ec->query_buffer(gr->egl_display, buffer, |
Kristian Høgsberg | b7b77e6 | 2012-09-05 22:38:18 -0400 | [diff] [blame] | 1078 | EGL_TEXTURE_FORMAT, &format)) { |
| 1079 | for (i = 0; i < es->num_images; i++) |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1080 | ec->destroy_image(gr->egl_display, es->images[i]); |
Kristian Høgsberg | b7b77e6 | 2012-09-05 22:38:18 -0400 | [diff] [blame] | 1081 | es->num_images = 0; |
| 1082 | es->target = GL_TEXTURE_2D; |
| 1083 | switch (format) { |
| 1084 | case EGL_TEXTURE_RGB: |
| 1085 | case EGL_TEXTURE_RGBA: |
| 1086 | default: |
| 1087 | num_planes = 1; |
| 1088 | es->shader = &ec->texture_shader_rgba; |
| 1089 | break; |
| 1090 | case EGL_TEXTURE_EXTERNAL_WL: |
| 1091 | num_planes = 1; |
| 1092 | es->target = GL_TEXTURE_EXTERNAL_OES; |
| 1093 | es->shader = &ec->texture_shader_egl_external; |
| 1094 | break; |
| 1095 | case EGL_TEXTURE_Y_UV_WL: |
| 1096 | num_planes = 2; |
| 1097 | es->shader = &ec->texture_shader_y_uv; |
| 1098 | break; |
| 1099 | case EGL_TEXTURE_Y_U_V_WL: |
| 1100 | num_planes = 3; |
| 1101 | es->shader = &ec->texture_shader_y_u_v; |
| 1102 | break; |
| 1103 | case EGL_TEXTURE_Y_XUXV_WL: |
| 1104 | num_planes = 2; |
| 1105 | es->shader = &ec->texture_shader_y_xuxv; |
| 1106 | break; |
| 1107 | } |
| 1108 | |
| 1109 | ensure_textures(es, num_planes); |
| 1110 | for (i = 0; i < num_planes; i++) { |
| 1111 | attribs[0] = EGL_WAYLAND_PLANE_WL; |
| 1112 | attribs[1] = i; |
| 1113 | attribs[2] = EGL_NONE; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1114 | es->images[i] = ec->create_image(gr->egl_display, |
Kristian Høgsberg | b7b77e6 | 2012-09-05 22:38:18 -0400 | [diff] [blame] | 1115 | NULL, |
| 1116 | EGL_WAYLAND_BUFFER_WL, |
| 1117 | buffer, attribs); |
| 1118 | if (!es->images[i]) { |
| 1119 | weston_log("failed to create img for plane %d\n", i); |
| 1120 | continue; |
| 1121 | } |
| 1122 | es->num_images++; |
| 1123 | |
| 1124 | glActiveTexture(GL_TEXTURE0 + i); |
| 1125 | glBindTexture(es->target, es->textures[i]); |
| 1126 | ec->image_target_texture_2d(es->target, |
| 1127 | es->images[i]); |
| 1128 | } |
| 1129 | |
| 1130 | es->pitch = buffer->width; |
| 1131 | } else { |
| 1132 | weston_log("unhandled buffer type!\n"); |
| 1133 | } |
| 1134 | } |
| 1135 | |
Kristian Høgsberg | 4226385 | 2012-09-06 21:59:29 -0400 | [diff] [blame] | 1136 | static void |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 1137 | gles2_renderer_surface_set_color(struct weston_surface *surface, |
| 1138 | float red, float green, float blue, float alpha) |
| 1139 | { |
| 1140 | struct gles2_surface_state *gs = get_surface_state(surface); |
| 1141 | |
| 1142 | gs->color[0] = red; |
| 1143 | gs->color[1] = green; |
| 1144 | gs->color[2] = blue; |
| 1145 | gs->color[3] = alpha; |
| 1146 | |
| 1147 | surface->shader = &surface->compositor->solid_shader; |
| 1148 | } |
| 1149 | |
| 1150 | static int |
| 1151 | gles2_renderer_create_surface(struct weston_surface *surface) |
| 1152 | { |
| 1153 | struct gles2_surface_state *gs; |
| 1154 | |
| 1155 | gs = calloc(1, sizeof *gs); |
| 1156 | |
| 1157 | if (!gs) |
| 1158 | return -1; |
| 1159 | |
| 1160 | surface->renderer_state = gs; |
| 1161 | |
| 1162 | return 0; |
| 1163 | } |
| 1164 | |
| 1165 | static void |
Kristian Høgsberg | 4226385 | 2012-09-06 21:59:29 -0400 | [diff] [blame] | 1166 | gles2_renderer_destroy_surface(struct weston_surface *surface) |
| 1167 | { |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 1168 | struct gles2_surface_state *gs = get_surface_state(surface); |
Kristian Høgsberg | 4226385 | 2012-09-06 21:59:29 -0400 | [diff] [blame] | 1169 | struct weston_compositor *ec = surface->compositor; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1170 | struct gles2_renderer *gr = get_renderer(ec); |
Kristian Høgsberg | 4226385 | 2012-09-06 21:59:29 -0400 | [diff] [blame] | 1171 | int i; |
| 1172 | |
| 1173 | glDeleteTextures(surface->num_textures, surface->textures); |
| 1174 | |
| 1175 | for (i = 0; i < surface->num_images; i++) |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1176 | ec->destroy_image(gr->egl_display, surface->images[i]); |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 1177 | |
| 1178 | free(gs); |
Kristian Høgsberg | 4226385 | 2012-09-06 21:59:29 -0400 | [diff] [blame] | 1179 | } |
| 1180 | |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1181 | static const char vertex_shader[] = |
| 1182 | "uniform mat4 proj;\n" |
| 1183 | "attribute vec2 position;\n" |
| 1184 | "attribute vec2 texcoord;\n" |
| 1185 | "varying vec2 v_texcoord;\n" |
| 1186 | "void main()\n" |
| 1187 | "{\n" |
| 1188 | " gl_Position = proj * vec4(position, 0.0, 1.0);\n" |
| 1189 | " v_texcoord = texcoord;\n" |
| 1190 | "}\n"; |
| 1191 | |
| 1192 | /* Declare common fragment shader uniforms */ |
| 1193 | #define FRAGMENT_CONVERT_YUV \ |
| 1194 | " y *= alpha;\n" \ |
| 1195 | " u *= alpha;\n" \ |
| 1196 | " v *= alpha;\n" \ |
| 1197 | " gl_FragColor.r = y + 1.59602678 * v;\n" \ |
| 1198 | " gl_FragColor.g = y - 0.39176229 * u - 0.81296764 * v;\n" \ |
| 1199 | " gl_FragColor.b = y + 2.01723214 * u;\n" \ |
| 1200 | " gl_FragColor.a = alpha;\n" |
| 1201 | |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1202 | static const char fragment_debug[] = |
| 1203 | " gl_FragColor = vec4(0.0, 0.3, 0.0, 0.2) + gl_FragColor * 0.8;\n"; |
| 1204 | |
| 1205 | static const char fragment_brace[] = |
| 1206 | "}\n"; |
| 1207 | |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1208 | static const char texture_fragment_shader_rgba[] = |
| 1209 | "precision mediump float;\n" |
| 1210 | "varying vec2 v_texcoord;\n" |
| 1211 | "uniform sampler2D tex;\n" |
| 1212 | "uniform float alpha;\n" |
| 1213 | "void main()\n" |
| 1214 | "{\n" |
| 1215 | " gl_FragColor = alpha * texture2D(tex, v_texcoord)\n;" |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1216 | ; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1217 | |
| 1218 | static const char texture_fragment_shader_rgbx[] = |
| 1219 | "precision mediump float;\n" |
| 1220 | "varying vec2 v_texcoord;\n" |
| 1221 | "uniform sampler2D tex;\n" |
| 1222 | "uniform float alpha;\n" |
| 1223 | "void main()\n" |
| 1224 | "{\n" |
| 1225 | " gl_FragColor.rgb = alpha * texture2D(tex, v_texcoord).rgb\n;" |
| 1226 | " gl_FragColor.a = alpha;\n" |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1227 | ; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1228 | |
| 1229 | static const char texture_fragment_shader_egl_external[] = |
| 1230 | "#extension GL_OES_EGL_image_external : require\n" |
| 1231 | "precision mediump float;\n" |
| 1232 | "varying vec2 v_texcoord;\n" |
| 1233 | "uniform samplerExternalOES tex;\n" |
| 1234 | "uniform float alpha;\n" |
| 1235 | "void main()\n" |
| 1236 | "{\n" |
| 1237 | " gl_FragColor = alpha * texture2D(tex, v_texcoord)\n;" |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1238 | ; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1239 | |
| 1240 | static const char texture_fragment_shader_y_uv[] = |
| 1241 | "precision mediump float;\n" |
| 1242 | "uniform sampler2D tex;\n" |
| 1243 | "uniform sampler2D tex1;\n" |
| 1244 | "varying vec2 v_texcoord;\n" |
| 1245 | "uniform float alpha;\n" |
| 1246 | "void main() {\n" |
| 1247 | " float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
| 1248 | " float u = texture2D(tex1, v_texcoord).r - 0.5;\n" |
| 1249 | " float v = texture2D(tex1, v_texcoord).g - 0.5;\n" |
| 1250 | FRAGMENT_CONVERT_YUV |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1251 | ; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1252 | |
| 1253 | static const char texture_fragment_shader_y_u_v[] = |
| 1254 | "precision mediump float;\n" |
| 1255 | "uniform sampler2D tex;\n" |
| 1256 | "uniform sampler2D tex1;\n" |
| 1257 | "uniform sampler2D tex2;\n" |
| 1258 | "varying vec2 v_texcoord;\n" |
| 1259 | "uniform float alpha;\n" |
| 1260 | "void main() {\n" |
| 1261 | " float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
| 1262 | " float u = texture2D(tex1, v_texcoord).x - 0.5;\n" |
| 1263 | " float v = texture2D(tex2, v_texcoord).x - 0.5;\n" |
| 1264 | FRAGMENT_CONVERT_YUV |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1265 | ; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1266 | |
| 1267 | static const char texture_fragment_shader_y_xuxv[] = |
| 1268 | "precision mediump float;\n" |
| 1269 | "uniform sampler2D tex;\n" |
| 1270 | "uniform sampler2D tex1;\n" |
| 1271 | "varying vec2 v_texcoord;\n" |
| 1272 | "uniform float alpha;\n" |
| 1273 | "void main() {\n" |
| 1274 | " float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
| 1275 | " float u = texture2D(tex1, v_texcoord).g - 0.5;\n" |
| 1276 | " float v = texture2D(tex1, v_texcoord).a - 0.5;\n" |
| 1277 | FRAGMENT_CONVERT_YUV |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1278 | ; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1279 | |
| 1280 | static const char solid_fragment_shader[] = |
| 1281 | "precision mediump float;\n" |
| 1282 | "uniform vec4 color;\n" |
| 1283 | "uniform float alpha;\n" |
| 1284 | "void main()\n" |
| 1285 | "{\n" |
| 1286 | " gl_FragColor = alpha * color\n;" |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1287 | ; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1288 | |
| 1289 | static int |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1290 | compile_shader(GLenum type, int count, const char **sources) |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1291 | { |
| 1292 | GLuint s; |
| 1293 | char msg[512]; |
| 1294 | GLint status; |
| 1295 | |
| 1296 | s = glCreateShader(type); |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1297 | glShaderSource(s, count, sources, NULL); |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1298 | glCompileShader(s); |
| 1299 | glGetShaderiv(s, GL_COMPILE_STATUS, &status); |
| 1300 | if (!status) { |
| 1301 | glGetShaderInfoLog(s, sizeof msg, NULL, msg); |
| 1302 | weston_log("shader info: %s\n", msg); |
| 1303 | return GL_NONE; |
| 1304 | } |
| 1305 | |
| 1306 | return s; |
| 1307 | } |
| 1308 | |
| 1309 | static int |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1310 | weston_shader_init(struct weston_shader *shader, struct weston_compositor *ec, |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1311 | const char *vertex_source, const char *fragment_source) |
| 1312 | { |
| 1313 | char msg[512]; |
| 1314 | GLint status; |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1315 | int count; |
| 1316 | const char *sources[3]; |
| 1317 | struct gles2_renderer *renderer = |
| 1318 | (struct gles2_renderer *) ec->renderer; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1319 | |
| 1320 | shader->vertex_shader = |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1321 | compile_shader(GL_VERTEX_SHADER, 1, &vertex_source); |
| 1322 | |
| 1323 | if (renderer->fragment_shader_debug) { |
| 1324 | sources[0] = fragment_source; |
| 1325 | sources[1] = fragment_debug; |
| 1326 | sources[2] = fragment_brace; |
| 1327 | count = 3; |
| 1328 | } else { |
| 1329 | sources[0] = fragment_source; |
| 1330 | sources[1] = fragment_brace; |
| 1331 | count = 2; |
| 1332 | } |
| 1333 | |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1334 | shader->fragment_shader = |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1335 | compile_shader(GL_FRAGMENT_SHADER, count, sources); |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1336 | |
| 1337 | shader->program = glCreateProgram(); |
| 1338 | glAttachShader(shader->program, shader->vertex_shader); |
| 1339 | glAttachShader(shader->program, shader->fragment_shader); |
| 1340 | glBindAttribLocation(shader->program, 0, "position"); |
| 1341 | glBindAttribLocation(shader->program, 1, "texcoord"); |
| 1342 | |
| 1343 | glLinkProgram(shader->program); |
| 1344 | glGetProgramiv(shader->program, GL_LINK_STATUS, &status); |
| 1345 | if (!status) { |
| 1346 | glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg); |
| 1347 | weston_log("link info: %s\n", msg); |
| 1348 | return -1; |
| 1349 | } |
| 1350 | |
| 1351 | shader->proj_uniform = glGetUniformLocation(shader->program, "proj"); |
| 1352 | shader->tex_uniforms[0] = glGetUniformLocation(shader->program, "tex"); |
| 1353 | shader->tex_uniforms[1] = glGetUniformLocation(shader->program, "tex1"); |
| 1354 | shader->tex_uniforms[2] = glGetUniformLocation(shader->program, "tex2"); |
| 1355 | shader->alpha_uniform = glGetUniformLocation(shader->program, "alpha"); |
| 1356 | shader->color_uniform = glGetUniformLocation(shader->program, "color"); |
| 1357 | |
| 1358 | return 0; |
| 1359 | } |
| 1360 | |
| 1361 | static void |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1362 | weston_shader_release(struct weston_shader *shader) |
| 1363 | { |
| 1364 | glDeleteShader(shader->vertex_shader); |
| 1365 | glDeleteShader(shader->fragment_shader); |
| 1366 | glDeleteProgram(shader->program); |
| 1367 | |
| 1368 | shader->vertex_shader = 0; |
| 1369 | shader->fragment_shader = 0; |
| 1370 | shader->program = 0; |
| 1371 | } |
| 1372 | |
| 1373 | static void |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1374 | log_extensions(const char *name, const char *extensions) |
| 1375 | { |
| 1376 | const char *p, *end; |
| 1377 | int l; |
| 1378 | int len; |
| 1379 | |
| 1380 | l = weston_log("%s:", name); |
| 1381 | p = extensions; |
| 1382 | while (*p) { |
| 1383 | end = strchrnul(p, ' '); |
| 1384 | len = end - p; |
| 1385 | if (l + len > 78) |
| 1386 | l = weston_log_continue("\n" STAMP_SPACE "%.*s", |
| 1387 | len, p); |
| 1388 | else |
| 1389 | l += weston_log_continue(" %.*s", len, p); |
| 1390 | for (p = end; isspace(*p); p++) |
| 1391 | ; |
| 1392 | } |
| 1393 | weston_log_continue("\n"); |
| 1394 | } |
| 1395 | |
| 1396 | static void |
| 1397 | log_egl_gl_info(EGLDisplay egldpy) |
| 1398 | { |
| 1399 | const char *str; |
| 1400 | |
| 1401 | str = eglQueryString(egldpy, EGL_VERSION); |
| 1402 | weston_log("EGL version: %s\n", str ? str : "(null)"); |
| 1403 | |
| 1404 | str = eglQueryString(egldpy, EGL_VENDOR); |
| 1405 | weston_log("EGL vendor: %s\n", str ? str : "(null)"); |
| 1406 | |
| 1407 | str = eglQueryString(egldpy, EGL_CLIENT_APIS); |
| 1408 | weston_log("EGL client APIs: %s\n", str ? str : "(null)"); |
| 1409 | |
| 1410 | str = eglQueryString(egldpy, EGL_EXTENSIONS); |
| 1411 | log_extensions("EGL extensions", str ? str : "(null)"); |
| 1412 | |
| 1413 | str = (char *)glGetString(GL_VERSION); |
| 1414 | weston_log("GL version: %s\n", str ? str : "(null)"); |
| 1415 | |
| 1416 | str = (char *)glGetString(GL_SHADING_LANGUAGE_VERSION); |
| 1417 | weston_log("GLSL version: %s\n", str ? str : "(null)"); |
| 1418 | |
| 1419 | str = (char *)glGetString(GL_VENDOR); |
| 1420 | weston_log("GL vendor: %s\n", str ? str : "(null)"); |
| 1421 | |
| 1422 | str = (char *)glGetString(GL_RENDERER); |
| 1423 | weston_log("GL renderer: %s\n", str ? str : "(null)"); |
| 1424 | |
| 1425 | str = (char *)glGetString(GL_EXTENSIONS); |
| 1426 | log_extensions("GL extensions", str ? str : "(null)"); |
| 1427 | } |
| 1428 | |
Pekka Paalanen | 9c3fe25 | 2012-10-24 09:43:05 +0300 | [diff] [blame] | 1429 | static void |
| 1430 | log_egl_config_info(EGLDisplay egldpy, EGLConfig eglconfig) |
| 1431 | { |
| 1432 | EGLint r, g, b, a; |
| 1433 | |
| 1434 | weston_log("Chosen EGL config details:\n"); |
| 1435 | |
| 1436 | weston_log_continue(STAMP_SPACE "RGBA bits"); |
| 1437 | if (eglGetConfigAttrib(egldpy, eglconfig, EGL_RED_SIZE, &r) && |
| 1438 | eglGetConfigAttrib(egldpy, eglconfig, EGL_GREEN_SIZE, &g) && |
| 1439 | eglGetConfigAttrib(egldpy, eglconfig, EGL_BLUE_SIZE, &b) && |
| 1440 | eglGetConfigAttrib(egldpy, eglconfig, EGL_ALPHA_SIZE, &a)) |
| 1441 | weston_log_continue(": %d %d %d %d\n", r, g, b, a); |
| 1442 | else |
| 1443 | weston_log_continue(" unknown\n"); |
| 1444 | |
| 1445 | weston_log_continue(STAMP_SPACE "swap interval range"); |
| 1446 | if (eglGetConfigAttrib(egldpy, eglconfig, EGL_MIN_SWAP_INTERVAL, &a) && |
| 1447 | eglGetConfigAttrib(egldpy, eglconfig, EGL_MAX_SWAP_INTERVAL, &b)) |
| 1448 | weston_log_continue(": %d - %d\n", a, b); |
| 1449 | else |
| 1450 | weston_log_continue(" unknown\n"); |
| 1451 | } |
| 1452 | |
John Kåre Alsaker | 4415450 | 2012-11-13 19:10:20 +0100 | [diff] [blame] | 1453 | static void |
| 1454 | output_apply_border(struct weston_output *output, struct gles2_renderer *gr) |
| 1455 | { |
| 1456 | output->border.top = gr->border.top; |
| 1457 | output->border.bottom = gr->border.bottom; |
| 1458 | output->border.left = gr->border.left; |
| 1459 | output->border.right = gr->border.right; |
| 1460 | } |
| 1461 | |
| 1462 | WL_EXPORT void |
| 1463 | gles2_renderer_set_border(struct weston_compositor *ec, int32_t width, int32_t height, void *data, |
| 1464 | int32_t *edges) |
| 1465 | { |
| 1466 | struct gles2_renderer *gr = get_renderer(ec); |
| 1467 | struct weston_output *output; |
| 1468 | |
| 1469 | gr->border.left = edges[0]; |
| 1470 | gr->border.right = edges[1]; |
| 1471 | gr->border.top = edges[2]; |
| 1472 | gr->border.bottom = edges[3]; |
| 1473 | |
| 1474 | gr->border.width = width; |
| 1475 | gr->border.height = height; |
| 1476 | |
| 1477 | glGenTextures(1, &gr->border.texture); |
| 1478 | glBindTexture(GL_TEXTURE_2D, gr->border.texture); |
| 1479 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| 1480 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| 1481 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| 1482 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| 1483 | |
| 1484 | glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, |
| 1485 | width, |
| 1486 | height, |
| 1487 | 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, |
| 1488 | data); |
| 1489 | |
| 1490 | wl_list_for_each(output, &ec->output_list, link) |
| 1491 | output_apply_border(output, gr); |
| 1492 | } |
| 1493 | |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1494 | static int |
| 1495 | gles2_renderer_setup(struct weston_compositor *ec, EGLSurface egl_surface); |
| 1496 | |
| 1497 | WL_EXPORT int |
| 1498 | gles2_renderer_output_create(struct weston_output *output, |
| 1499 | EGLNativeWindowType window) |
| 1500 | { |
| 1501 | struct weston_compositor *ec = output->compositor; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1502 | struct gles2_renderer *gr = get_renderer(ec); |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1503 | struct gles2_output_state *go = calloc(1, sizeof *go); |
| 1504 | |
| 1505 | if (!go) |
| 1506 | return -1; |
| 1507 | |
| 1508 | go->egl_surface = |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1509 | eglCreateWindowSurface(gr->egl_display, |
| 1510 | gr->egl_config, |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1511 | window, NULL); |
| 1512 | |
| 1513 | if (go->egl_surface == EGL_NO_SURFACE) { |
| 1514 | weston_log("failed to create egl surface\n"); |
| 1515 | free(go); |
| 1516 | return -1; |
| 1517 | } |
| 1518 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1519 | if (gr->egl_context == NULL) |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1520 | if (gles2_renderer_setup(ec, go->egl_surface) < 0) { |
| 1521 | free(go); |
| 1522 | return -1; |
| 1523 | } |
| 1524 | |
| 1525 | output->renderer_state = go; |
| 1526 | |
John Kåre Alsaker | 4415450 | 2012-11-13 19:10:20 +0100 | [diff] [blame] | 1527 | output_apply_border(output, gr); |
| 1528 | |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1529 | return 0; |
| 1530 | } |
| 1531 | |
| 1532 | WL_EXPORT void |
| 1533 | gles2_renderer_output_destroy(struct weston_output *output) |
| 1534 | { |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1535 | struct gles2_renderer *gr = get_renderer(output->compositor); |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1536 | struct gles2_output_state *go = get_output_state(output); |
| 1537 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1538 | eglDestroySurface(gr->egl_display, go->egl_surface); |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1539 | |
| 1540 | free(go); |
| 1541 | } |
| 1542 | |
| 1543 | WL_EXPORT EGLSurface |
| 1544 | gles2_renderer_output_surface(struct weston_output *output) |
| 1545 | { |
| 1546 | return get_output_state(output)->egl_surface; |
| 1547 | } |
| 1548 | |
Kristian Høgsberg | 3a0de88 | 2012-09-06 21:44:24 -0400 | [diff] [blame] | 1549 | WL_EXPORT void |
| 1550 | gles2_renderer_destroy(struct weston_compositor *ec) |
| 1551 | { |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1552 | struct gles2_renderer *gr = get_renderer(ec); |
| 1553 | |
Kristian Høgsberg | 3a0de88 | 2012-09-06 21:44:24 -0400 | [diff] [blame] | 1554 | if (ec->has_bind_display) |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1555 | ec->unbind_display(gr->egl_display, ec->wl_display); |
| 1556 | |
| 1557 | /* Work around crash in egl_dri2.c's dri2_make_current() - when does this apply? */ |
| 1558 | eglMakeCurrent(gr->egl_display, |
| 1559 | EGL_NO_SURFACE, EGL_NO_SURFACE, |
| 1560 | EGL_NO_CONTEXT); |
| 1561 | |
| 1562 | eglTerminate(gr->egl_display); |
| 1563 | eglReleaseThread(); |
| 1564 | } |
| 1565 | |
| 1566 | static int |
| 1567 | egl_choose_config(struct gles2_renderer *gr, const EGLint *attribs, |
| 1568 | const EGLint *visual_id) |
| 1569 | { |
| 1570 | EGLint count = 0; |
| 1571 | EGLint matched = 0; |
| 1572 | EGLConfig *configs; |
| 1573 | int i; |
| 1574 | |
| 1575 | if (!eglGetConfigs(gr->egl_display, NULL, 0, &count) || count < 1) |
| 1576 | return -1; |
| 1577 | |
| 1578 | configs = calloc(count, sizeof *configs); |
| 1579 | if (!configs) |
| 1580 | return -1; |
| 1581 | |
| 1582 | if (!eglChooseConfig(gr->egl_display, attribs, configs, |
| 1583 | count, &matched)) |
| 1584 | goto out; |
| 1585 | |
| 1586 | for (i = 0; i < matched; ++i) { |
| 1587 | EGLint id; |
| 1588 | |
| 1589 | if (visual_id) { |
| 1590 | if (!eglGetConfigAttrib(gr->egl_display, |
| 1591 | configs[i], EGL_NATIVE_VISUAL_ID, |
| 1592 | &id)) |
| 1593 | continue; |
| 1594 | |
| 1595 | if (id != *visual_id) |
| 1596 | continue; |
| 1597 | } |
| 1598 | |
| 1599 | gr->egl_config = configs[i]; |
| 1600 | |
| 1601 | free(configs); |
| 1602 | return 0; |
| 1603 | } |
| 1604 | |
| 1605 | out: |
| 1606 | free(configs); |
| 1607 | return -1; |
| 1608 | } |
| 1609 | |
| 1610 | WL_EXPORT const EGLint gles2_renderer_opaque_attribs[] = { |
| 1611 | EGL_SURFACE_TYPE, EGL_WINDOW_BIT, |
| 1612 | EGL_RED_SIZE, 1, |
| 1613 | EGL_GREEN_SIZE, 1, |
| 1614 | EGL_BLUE_SIZE, 1, |
| 1615 | EGL_ALPHA_SIZE, 0, |
| 1616 | EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| 1617 | EGL_NONE |
| 1618 | }; |
| 1619 | |
| 1620 | WL_EXPORT const EGLint gles2_renderer_alpha_attribs[] = { |
| 1621 | EGL_SURFACE_TYPE, EGL_WINDOW_BIT, |
| 1622 | EGL_RED_SIZE, 1, |
| 1623 | EGL_GREEN_SIZE, 1, |
| 1624 | EGL_BLUE_SIZE, 1, |
| 1625 | EGL_ALPHA_SIZE, 1, |
| 1626 | EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| 1627 | EGL_NONE |
| 1628 | }; |
| 1629 | |
| 1630 | WL_EXPORT int |
| 1631 | gles2_renderer_create(struct weston_compositor *ec, EGLNativeDisplayType display, |
| 1632 | const EGLint *attribs, const EGLint *visual_id) |
| 1633 | { |
| 1634 | struct gles2_renderer *gr; |
| 1635 | EGLint major, minor; |
| 1636 | |
| 1637 | gr = calloc(1, sizeof *gr); |
| 1638 | |
| 1639 | if (gr == NULL) |
| 1640 | return -1; |
| 1641 | |
John Kåre Alsaker | a95b2d6 | 2012-11-13 19:10:21 +0100 | [diff] [blame] | 1642 | gr->base.read_pixels = gles2_renderer_read_pixels; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1643 | gr->base.repaint_output = gles2_renderer_repaint_output; |
| 1644 | gr->base.flush_damage = gles2_renderer_flush_damage; |
| 1645 | gr->base.attach = gles2_renderer_attach; |
John Kåre Alsaker | 878f449 | 2012-11-13 19:10:23 +0100 | [diff] [blame^] | 1646 | gr->base.create_surface = gles2_renderer_create_surface; |
| 1647 | gr->base.surface_set_color = gles2_renderer_surface_set_color; |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1648 | gr->base.destroy_surface = gles2_renderer_destroy_surface; |
| 1649 | |
| 1650 | gr->egl_display = eglGetDisplay(display); |
| 1651 | if (gr->egl_display == EGL_NO_DISPLAY) { |
| 1652 | weston_log("failed to create display\n"); |
| 1653 | goto err_egl; |
| 1654 | } |
| 1655 | |
| 1656 | if (!eglInitialize(gr->egl_display, &major, &minor)) { |
| 1657 | weston_log("failed to initialize display\n"); |
| 1658 | goto err_egl; |
| 1659 | } |
| 1660 | |
| 1661 | if (egl_choose_config(gr, attribs, visual_id) < 0) { |
| 1662 | weston_log("failed to choose EGL config\n"); |
| 1663 | goto err_egl; |
| 1664 | } |
| 1665 | |
| 1666 | ec->renderer = &gr->base; |
| 1667 | |
| 1668 | return 0; |
| 1669 | |
| 1670 | err_egl: |
| 1671 | print_egl_error_state(); |
| 1672 | free(gr); |
| 1673 | return -1; |
| 1674 | } |
| 1675 | |
| 1676 | WL_EXPORT EGLDisplay |
| 1677 | gles2_renderer_display(struct weston_compositor *ec) |
| 1678 | { |
| 1679 | return get_renderer(ec)->egl_display; |
Kristian Høgsberg | 3a0de88 | 2012-09-06 21:44:24 -0400 | [diff] [blame] | 1680 | } |
| 1681 | |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1682 | static int |
| 1683 | compile_shaders(struct weston_compositor *ec) |
| 1684 | { |
| 1685 | if (weston_shader_init(&ec->texture_shader_rgba, ec, |
| 1686 | vertex_shader, texture_fragment_shader_rgba) < 0) |
| 1687 | return -1; |
| 1688 | if (weston_shader_init(&ec->texture_shader_rgbx, ec, |
| 1689 | vertex_shader, texture_fragment_shader_rgbx) < 0) |
| 1690 | return -1; |
| 1691 | if (ec->has_egl_image_external && |
| 1692 | weston_shader_init(&ec->texture_shader_egl_external, ec, |
| 1693 | vertex_shader, texture_fragment_shader_egl_external) < 0) |
| 1694 | return -1; |
| 1695 | if (weston_shader_init(&ec->texture_shader_y_uv, ec, |
| 1696 | vertex_shader, texture_fragment_shader_y_uv) < 0) |
| 1697 | return -1; |
| 1698 | if (weston_shader_init(&ec->texture_shader_y_u_v, ec, |
| 1699 | vertex_shader, texture_fragment_shader_y_u_v) < 0) |
| 1700 | return -1; |
| 1701 | if (weston_shader_init(&ec->texture_shader_y_xuxv, ec, |
| 1702 | vertex_shader, texture_fragment_shader_y_xuxv) < 0) |
| 1703 | return -1; |
| 1704 | if (weston_shader_init(&ec->solid_shader, ec, |
| 1705 | vertex_shader, solid_fragment_shader) < 0) |
| 1706 | return -1; |
| 1707 | |
| 1708 | return 0; |
| 1709 | } |
| 1710 | |
| 1711 | static void |
| 1712 | fragment_debug_binding(struct wl_seat *seat, uint32_t time, uint32_t key, |
| 1713 | void *data) |
| 1714 | { |
| 1715 | struct weston_compositor *ec = data; |
| 1716 | struct gles2_renderer *renderer = |
| 1717 | (struct gles2_renderer *) ec->renderer; |
| 1718 | struct weston_output *output; |
| 1719 | |
| 1720 | renderer->fragment_shader_debug ^= 1; |
| 1721 | |
| 1722 | weston_shader_release(&ec->texture_shader_rgba); |
| 1723 | weston_shader_release(&ec->texture_shader_rgbx); |
| 1724 | weston_shader_release(&ec->texture_shader_egl_external); |
| 1725 | weston_shader_release(&ec->texture_shader_y_uv); |
| 1726 | weston_shader_release(&ec->texture_shader_y_u_v); |
| 1727 | weston_shader_release(&ec->texture_shader_y_xuxv); |
| 1728 | weston_shader_release(&ec->solid_shader); |
| 1729 | |
| 1730 | compile_shaders(ec); |
| 1731 | |
| 1732 | wl_list_for_each(output, &ec->output_list, link) |
| 1733 | weston_output_damage(output); |
| 1734 | } |
| 1735 | |
John Kåre Alsaker | 9465927 | 2012-11-13 19:10:18 +0100 | [diff] [blame] | 1736 | static int |
| 1737 | gles2_renderer_setup(struct weston_compositor *ec, EGLSurface egl_surface) |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1738 | { |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1739 | struct gles2_renderer *gr = get_renderer(ec); |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1740 | const char *extensions; |
Kristian Høgsberg | 2bc5e8e | 2012-09-06 20:51:00 -0400 | [diff] [blame] | 1741 | EGLBoolean ret; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1742 | |
Kristian Høgsberg | 9793fc7 | 2012-09-06 21:07:40 -0400 | [diff] [blame] | 1743 | static const EGLint context_attribs[] = { |
| 1744 | EGL_CONTEXT_CLIENT_VERSION, 2, |
| 1745 | EGL_NONE |
| 1746 | }; |
| 1747 | |
Kristian Høgsberg | 9793fc7 | 2012-09-06 21:07:40 -0400 | [diff] [blame] | 1748 | if (!eglBindAPI(EGL_OPENGL_ES_API)) { |
| 1749 | weston_log("failed to bind EGL_OPENGL_ES_API\n"); |
| 1750 | print_egl_error_state(); |
| 1751 | return -1; |
| 1752 | } |
Pekka Paalanen | 9c3fe25 | 2012-10-24 09:43:05 +0300 | [diff] [blame] | 1753 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1754 | log_egl_config_info(gr->egl_display, gr->egl_config); |
Pekka Paalanen | 9c3fe25 | 2012-10-24 09:43:05 +0300 | [diff] [blame] | 1755 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1756 | gr->egl_context = eglCreateContext(gr->egl_display, gr->egl_config, |
Kristian Høgsberg | 9793fc7 | 2012-09-06 21:07:40 -0400 | [diff] [blame] | 1757 | EGL_NO_CONTEXT, context_attribs); |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1758 | if (gr->egl_context == NULL) { |
Kristian Høgsberg | 9793fc7 | 2012-09-06 21:07:40 -0400 | [diff] [blame] | 1759 | weston_log("failed to create context\n"); |
| 1760 | print_egl_error_state(); |
| 1761 | return -1; |
| 1762 | } |
| 1763 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1764 | ret = eglMakeCurrent(gr->egl_display, egl_surface, |
| 1765 | egl_surface, gr->egl_context); |
Kristian Høgsberg | 2bc5e8e | 2012-09-06 20:51:00 -0400 | [diff] [blame] | 1766 | if (ret == EGL_FALSE) { |
| 1767 | weston_log("Failed to make EGL context current.\n"); |
| 1768 | print_egl_error_state(); |
| 1769 | return -1; |
| 1770 | } |
| 1771 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1772 | log_egl_gl_info(gr->egl_display); |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1773 | |
| 1774 | ec->image_target_texture_2d = |
| 1775 | (void *) eglGetProcAddress("glEGLImageTargetTexture2DOES"); |
| 1776 | ec->image_target_renderbuffer_storage = (void *) |
| 1777 | eglGetProcAddress("glEGLImageTargetRenderbufferStorageOES"); |
| 1778 | ec->create_image = (void *) eglGetProcAddress("eglCreateImageKHR"); |
| 1779 | ec->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR"); |
| 1780 | ec->bind_display = |
| 1781 | (void *) eglGetProcAddress("eglBindWaylandDisplayWL"); |
| 1782 | ec->unbind_display = |
| 1783 | (void *) eglGetProcAddress("eglUnbindWaylandDisplayWL"); |
| 1784 | ec->query_buffer = |
| 1785 | (void *) eglGetProcAddress("eglQueryWaylandBufferWL"); |
| 1786 | |
| 1787 | extensions = (const char *) glGetString(GL_EXTENSIONS); |
| 1788 | if (!extensions) { |
| 1789 | weston_log("Retrieving GL extension string failed.\n"); |
| 1790 | return -1; |
| 1791 | } |
| 1792 | |
| 1793 | if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) { |
| 1794 | weston_log("GL_EXT_texture_format_BGRA8888 not available\n"); |
| 1795 | return -1; |
| 1796 | } |
| 1797 | |
| 1798 | if (strstr(extensions, "GL_EXT_read_format_bgra")) |
John Kåre Alsaker | f9e710b | 2012-11-13 19:10:22 +0100 | [diff] [blame] | 1799 | ec->read_format = PIXMAN_a8r8g8b8; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1800 | else |
John Kåre Alsaker | f9e710b | 2012-11-13 19:10:22 +0100 | [diff] [blame] | 1801 | ec->read_format = PIXMAN_a8b8g8r8; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1802 | |
| 1803 | if (strstr(extensions, "GL_EXT_unpack_subimage")) |
| 1804 | ec->has_unpack_subimage = 1; |
| 1805 | |
| 1806 | if (strstr(extensions, "GL_OES_EGL_image_external")) |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1807 | ec->has_egl_image_external = 1; |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1808 | |
| 1809 | extensions = |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1810 | (const char *) eglQueryString(gr->egl_display, EGL_EXTENSIONS); |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1811 | if (!extensions) { |
| 1812 | weston_log("Retrieving EGL extension string failed.\n"); |
| 1813 | return -1; |
| 1814 | } |
| 1815 | |
| 1816 | if (strstr(extensions, "EGL_WL_bind_wayland_display")) |
| 1817 | ec->has_bind_display = 1; |
Pekka Paalanen | 035a032 | 2012-10-24 09:43:06 +0300 | [diff] [blame] | 1818 | if (ec->has_bind_display) { |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1819 | ret = ec->bind_display(gr->egl_display, ec->wl_display); |
Pekka Paalanen | 035a032 | 2012-10-24 09:43:06 +0300 | [diff] [blame] | 1820 | if (!ret) |
| 1821 | ec->has_bind_display = 0; |
| 1822 | } |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1823 | |
| 1824 | glActiveTexture(GL_TEXTURE0); |
| 1825 | |
Ander Conselvan de Oliveira | 27508c2 | 2012-11-08 17:20:46 +0200 | [diff] [blame] | 1826 | if (compile_shaders(ec)) |
| 1827 | return -1; |
| 1828 | |
| 1829 | weston_compositor_add_debug_binding(ec, KEY_S, |
| 1830 | fragment_debug_binding, ec); |
| 1831 | |
Pekka Paalanen | 035a032 | 2012-10-24 09:43:06 +0300 | [diff] [blame] | 1832 | weston_log("GL ES 2 renderer features:\n"); |
| 1833 | weston_log_continue(STAMP_SPACE "read-back format: %s\n", |
| 1834 | ec->read_format == GL_BGRA_EXT ? "BGRA" : "RGBA"); |
| 1835 | weston_log_continue(STAMP_SPACE "wl_shm sub-image to texture: %s\n", |
| 1836 | ec->has_unpack_subimage ? "yes" : "no"); |
| 1837 | weston_log_continue(STAMP_SPACE "EGL Wayland extension: %s\n", |
| 1838 | ec->has_bind_display ? "yes" : "no"); |
| 1839 | |
John Kåre Alsaker | 1b7ad16 | 2012-11-13 19:10:19 +0100 | [diff] [blame] | 1840 | |
Kristian Høgsberg | 25894fc | 2012-09-05 22:06:26 -0400 | [diff] [blame] | 1841 | return 0; |
| 1842 | } |