| /* |
| * Copyright © 2012 Intel Corporation |
| * Copyright © 2015 Collabora, Ltd. |
| * Copyright © 2016 NVIDIA Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial |
| * portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #include "config.h" |
| |
| #include <GLES2/gl2.h> |
| #include <GLES2/gl2ext.h> |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <ctype.h> |
| #include <float.h> |
| #include <assert.h> |
| #include <linux/input.h> |
| #include <drm_fourcc.h> |
| #include <unistd.h> |
| #include <sys/ioctl.h> |
| |
| #ifdef HAVE_LINUX_SYNC_FILE_H |
| #include <linux/sync_file.h> |
| #else |
| #include "weston-sync-file.h" |
| #endif |
| |
| #include "timeline.h" |
| |
| #include "gl-renderer.h" |
| #include "vertex-clipping.h" |
| #include "linux-dmabuf.h" |
| #include "linux-dmabuf-unstable-v1-server-protocol.h" |
| #include "alpha-compositing-unstable-v1-server-protocol.h" |
| |
| #include "shared/helpers.h" |
| #include "shared/platform.h" |
| #include "shared/timespec-util.h" |
| #include "weston-egl-ext.h" |
| |
| #define GR_GL_VERSION(major, minor) \ |
| (((uint32_t)(major) << 16) | (uint32_t)(minor)) |
| |
| #define GR_GL_VERSION_INVALID \ |
| GR_GL_VERSION(0, 0) |
| |
| struct gl_shader { |
| GLuint program; |
| GLuint vertex_shader, fragment_shader; |
| GLint proj_uniform; |
| GLint tex_uniforms[3]; |
| GLint alpha_uniform; |
| GLint color_uniform; |
| const char *vertex_source, *fragment_source; |
| }; |
| |
| #define BUFFER_DAMAGE_COUNT 2 |
| |
| enum gl_border_status { |
| BORDER_STATUS_CLEAN = 0, |
| BORDER_TOP_DIRTY = 1 << GL_RENDERER_BORDER_TOP, |
| BORDER_LEFT_DIRTY = 1 << GL_RENDERER_BORDER_LEFT, |
| BORDER_RIGHT_DIRTY = 1 << GL_RENDERER_BORDER_RIGHT, |
| BORDER_BOTTOM_DIRTY = 1 << GL_RENDERER_BORDER_BOTTOM, |
| BORDER_ALL_DIRTY = 0xf, |
| BORDER_SIZE_CHANGED = 0x10 |
| }; |
| |
| struct gl_border_image { |
| GLuint tex; |
| int32_t width, height; |
| int32_t tex_width; |
| void *data; |
| }; |
| |
| struct gl_output_state { |
| EGLSurface egl_surface; |
| pixman_region32_t buffer_damage[BUFFER_DAMAGE_COUNT]; |
| int buffer_damage_index; |
| enum gl_border_status border_damage[BUFFER_DAMAGE_COUNT]; |
| struct gl_border_image borders[4]; |
| enum gl_border_status border_status; |
| |
| struct weston_matrix output_matrix; |
| |
| /* struct timeline_render_point::link */ |
| struct wl_list timeline_render_point_list; |
| }; |
| |
| enum buffer_type { |
| BUFFER_TYPE_NULL, |
| BUFFER_TYPE_SOLID, /* internal solid color surfaces without a buffer */ |
| BUFFER_TYPE_SHM, |
| BUFFER_TYPE_EGL |
| }; |
| |
| struct gl_renderer; |
| |
| struct egl_image { |
| struct gl_renderer *renderer; |
| EGLImageKHR image; |
| int refcount; |
| }; |
| |
| enum import_type { |
| IMPORT_TYPE_INVALID, |
| IMPORT_TYPE_DIRECT, |
| IMPORT_TYPE_GL_CONVERSION |
| }; |
| |
| struct dmabuf_image { |
| struct linux_dmabuf_buffer *dmabuf; |
| int num_images; |
| struct egl_image *images[3]; |
| struct wl_list link; |
| |
| enum import_type import_type; |
| GLenum target; |
| struct gl_shader *shader; |
| }; |
| |
| struct yuv_plane_descriptor { |
| int width_divisor; |
| int height_divisor; |
| uint32_t format; |
| int plane_index; |
| }; |
| |
| struct yuv_format_descriptor { |
| uint32_t format; |
| int input_planes; |
| int output_planes; |
| int texture_type; |
| struct yuv_plane_descriptor plane[4]; |
| }; |
| |
| struct gl_surface_state { |
| GLfloat color[4]; |
| struct gl_shader *shader; |
| |
| GLuint textures[3]; |
| int num_textures; |
| bool needs_full_upload; |
| pixman_region32_t texture_damage; |
| |
| /* These are only used by SHM surfaces to detect when we need |
| * to do a full upload to specify a new internal texture |
| * format */ |
| GLenum gl_format[3]; |
| GLenum gl_pixel_type; |
| |
| struct egl_image* images[3]; |
| GLenum target; |
| int num_images; |
| |
| struct weston_buffer_reference buffer_ref; |
| enum buffer_type buffer_type; |
| int pitch; /* in pixels */ |
| int height; /* in pixels */ |
| int y_inverted; |
| |
| /* Extension needed for SHM YUV texture */ |
| int offset[3]; /* offset per plane */ |
| int hsub[3]; /* horizontal subsampling per plane */ |
| int vsub[3]; /* vertical subsampling per plane */ |
| |
| struct weston_surface *surface; |
| |
| struct wl_listener surface_destroy_listener; |
| struct wl_listener renderer_destroy_listener; |
| }; |
| |
| struct gl_renderer { |
| struct weston_renderer base; |
| int fragment_shader_debug; |
| int fan_debug; |
| struct weston_binding *fragment_binding; |
| struct weston_binding *fan_binding; |
| |
| EGLDisplay egl_display; |
| EGLContext egl_context; |
| EGLConfig egl_config; |
| |
| EGLSurface dummy_surface; |
| |
| uint32_t gl_version; |
| |
| struct wl_array vertices; |
| struct wl_array vtxcnt; |
| |
| PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d; |
| PFNEGLCREATEIMAGEKHRPROC create_image; |
| PFNEGLDESTROYIMAGEKHRPROC destroy_image; |
| PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage; |
| PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC create_platform_window; |
| |
| int has_unpack_subimage; |
| |
| PFNEGLBINDWAYLANDDISPLAYWL bind_display; |
| PFNEGLUNBINDWAYLANDDISPLAYWL unbind_display; |
| PFNEGLQUERYWAYLANDBUFFERWL query_buffer; |
| int has_bind_display; |
| |
| int has_context_priority; |
| |
| int has_egl_image_external; |
| |
| int has_egl_buffer_age; |
| |
| int has_configless_context; |
| |
| int has_surfaceless_context; |
| |
| int has_dmabuf_import; |
| struct wl_list dmabuf_images; |
| |
| int has_gl_texture_rg; |
| |
| struct gl_shader texture_shader_rgba; |
| struct gl_shader texture_shader_rgbx; |
| struct gl_shader texture_shader_egl_external; |
| struct gl_shader texture_shader_y_uv; |
| struct gl_shader texture_shader_y_u_v; |
| struct gl_shader texture_shader_y_xuxv; |
| struct gl_shader invert_color_shader; |
| struct gl_shader solid_shader; |
| struct gl_shader *current_shader; |
| |
| struct wl_signal destroy_signal; |
| |
| struct wl_listener output_destroy_listener; |
| |
| int has_dmabuf_import_modifiers; |
| PFNEGLQUERYDMABUFFORMATSEXTPROC query_dmabuf_formats; |
| PFNEGLQUERYDMABUFMODIFIERSEXTPROC query_dmabuf_modifiers; |
| |
| int has_native_fence_sync; |
| PFNEGLCREATESYNCKHRPROC create_sync; |
| PFNEGLDESTROYSYNCKHRPROC destroy_sync; |
| PFNEGLDUPNATIVEFENCEFDANDROIDPROC dup_native_fence_fd; |
| }; |
| |
| enum timeline_render_point_type { |
| TIMELINE_RENDER_POINT_TYPE_BEGIN, |
| TIMELINE_RENDER_POINT_TYPE_END |
| }; |
| |
| struct timeline_render_point { |
| struct wl_list link; /* gl_output_state::timeline_render_point_list */ |
| |
| enum timeline_render_point_type type; |
| int fd; |
| struct weston_output *output; |
| struct wl_event_source *event_source; |
| }; |
| |
| static PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display = NULL; |
| |
| static inline const char * |
| dump_format(uint32_t format, char out[4]) |
| { |
| #if BYTE_ORDER == BIG_ENDIAN |
| format = __builtin_bswap32(format); |
| #endif |
| memcpy(out, &format, 4); |
| return out; |
| } |
| |
| static inline struct gl_output_state * |
| get_output_state(struct weston_output *output) |
| { |
| return (struct gl_output_state *)output->renderer_state; |
| } |
| |
| static int |
| gl_renderer_create_surface(struct weston_surface *surface); |
| |
| static inline struct gl_surface_state * |
| get_surface_state(struct weston_surface *surface) |
| { |
| if (!surface->renderer_state) |
| gl_renderer_create_surface(surface); |
| |
| return (struct gl_surface_state *)surface->renderer_state; |
| } |
| |
| static inline struct gl_renderer * |
| get_renderer(struct weston_compositor *ec) |
| { |
| return (struct gl_renderer *)ec->renderer; |
| } |
| |
| static int |
| linux_sync_file_read_timestamp(int fd, uint64_t *ts) |
| { |
| struct sync_file_info file_info = { { 0 } }; |
| struct sync_fence_info fence_info = { { 0 } }; |
| |
| assert(ts != NULL); |
| |
| file_info.sync_fence_info = (uint64_t)(uintptr_t)&fence_info; |
| file_info.num_fences = 1; |
| |
| if (ioctl(fd, SYNC_IOC_FILE_INFO, &file_info) < 0) |
| return -1; |
| |
| *ts = fence_info.timestamp_ns; |
| |
| return 0; |
| } |
| |
| static void |
| timeline_render_point_destroy(struct timeline_render_point *trp) |
| { |
| wl_list_remove(&trp->link); |
| wl_event_source_remove(trp->event_source); |
| close(trp->fd); |
| free(trp); |
| } |
| |
| static int |
| timeline_render_point_handler(int fd, uint32_t mask, void *data) |
| { |
| struct timeline_render_point *trp = data; |
| const char *tp_name = trp->type == TIMELINE_RENDER_POINT_TYPE_BEGIN ? |
| "renderer_gpu_begin" : "renderer_gpu_end"; |
| |
| if (mask & WL_EVENT_READABLE) { |
| uint64_t ts; |
| |
| if (linux_sync_file_read_timestamp(trp->fd, &ts) == 0) { |
| struct timespec tspec = { 0 }; |
| |
| timespec_add_nsec(&tspec, &tspec, ts); |
| |
| TL_POINT(tp_name, TLP_GPU(&tspec), |
| TLP_OUTPUT(trp->output), TLP_END); |
| } |
| } |
| |
| timeline_render_point_destroy(trp); |
| |
| return 0; |
| } |
| |
| static EGLSyncKHR |
| timeline_create_render_sync(struct gl_renderer *gr) |
| { |
| static const EGLint attribs[] = { EGL_NONE }; |
| |
| if (!weston_timeline_enabled_ || !gr->has_native_fence_sync) |
| return EGL_NO_SYNC_KHR; |
| |
| return gr->create_sync(gr->egl_display, EGL_SYNC_NATIVE_FENCE_ANDROID, |
| attribs); |
| } |
| |
| static void |
| timeline_submit_render_sync(struct gl_renderer *gr, |
| struct weston_compositor *ec, |
| struct weston_output *output, |
| EGLSyncKHR sync, |
| enum timeline_render_point_type type) |
| { |
| struct gl_output_state *go; |
| struct wl_event_loop *loop; |
| int fd; |
| struct timeline_render_point *trp; |
| |
| if (!weston_timeline_enabled_ || |
| !gr->has_native_fence_sync || |
| sync == EGL_NO_SYNC_KHR) |
| return; |
| |
| go = get_output_state(output); |
| loop = wl_display_get_event_loop(ec->wl_display); |
| |
| fd = gr->dup_native_fence_fd(gr->egl_display, sync); |
| if (fd == EGL_NO_NATIVE_FENCE_FD_ANDROID) |
| goto out; |
| |
| trp = zalloc(sizeof *trp); |
| if (trp == NULL) { |
| close(fd); |
| goto out; |
| } |
| |
| trp->type = type; |
| trp->fd = fd; |
| trp->output = output; |
| trp->event_source = wl_event_loop_add_fd(loop, fd, |
| WL_EVENT_READABLE, |
| timeline_render_point_handler, |
| trp); |
| |
| wl_list_insert(&go->timeline_render_point_list, &trp->link); |
| |
| out: |
| gr->destroy_sync(gr->egl_display, sync); |
| } |
| |
| static struct egl_image* |
| egl_image_create(struct gl_renderer *gr, EGLenum target, |
| EGLClientBuffer buffer, const EGLint *attribs) |
| { |
| struct egl_image *img; |
| |
| img = zalloc(sizeof *img); |
| img->renderer = gr; |
| img->refcount = 1; |
| img->image = gr->create_image(gr->egl_display, EGL_NO_CONTEXT, |
| target, buffer, attribs); |
| |
| if (img->image == EGL_NO_IMAGE_KHR) { |
| free(img); |
| return NULL; |
| } |
| |
| return img; |
| } |
| |
| static struct egl_image* |
| egl_image_ref(struct egl_image *image) |
| { |
| image->refcount++; |
| |
| return image; |
| } |
| |
| static int |
| egl_image_unref(struct egl_image *image) |
| { |
| struct gl_renderer *gr = image->renderer; |
| |
| assert(image->refcount > 0); |
| |
| image->refcount--; |
| if (image->refcount > 0) |
| return image->refcount; |
| |
| gr->destroy_image(gr->egl_display, image->image); |
| free(image); |
| |
| return 0; |
| } |
| |
| static struct dmabuf_image* |
| dmabuf_image_create(void) |
| { |
| struct dmabuf_image *img; |
| |
| img = zalloc(sizeof *img); |
| wl_list_init(&img->link); |
| |
| return img; |
| } |
| |
| static void |
| dmabuf_image_destroy(struct dmabuf_image *image) |
| { |
| int i; |
| |
| for (i = 0; i < image->num_images; ++i) |
| egl_image_unref(image->images[i]); |
| |
| if (image->dmabuf) |
| linux_dmabuf_buffer_set_user_data(image->dmabuf, NULL, NULL); |
| |
| wl_list_remove(&image->link); |
| free(image); |
| } |
| |
| static const char * |
| egl_error_string(EGLint code) |
| { |
| #define MYERRCODE(x) case x: return #x; |
| switch (code) { |
| MYERRCODE(EGL_SUCCESS) |
| MYERRCODE(EGL_NOT_INITIALIZED) |
| MYERRCODE(EGL_BAD_ACCESS) |
| MYERRCODE(EGL_BAD_ALLOC) |
| MYERRCODE(EGL_BAD_ATTRIBUTE) |
| MYERRCODE(EGL_BAD_CONTEXT) |
| MYERRCODE(EGL_BAD_CONFIG) |
| MYERRCODE(EGL_BAD_CURRENT_SURFACE) |
| MYERRCODE(EGL_BAD_DISPLAY) |
| MYERRCODE(EGL_BAD_SURFACE) |
| MYERRCODE(EGL_BAD_MATCH) |
| MYERRCODE(EGL_BAD_PARAMETER) |
| MYERRCODE(EGL_BAD_NATIVE_PIXMAP) |
| MYERRCODE(EGL_BAD_NATIVE_WINDOW) |
| MYERRCODE(EGL_CONTEXT_LOST) |
| default: |
| return "unknown"; |
| } |
| #undef MYERRCODE |
| } |
| |
| static void |
| gl_renderer_print_egl_error_state(void) |
| { |
| EGLint code; |
| |
| code = eglGetError(); |
| weston_log("EGL error state: %s (0x%04lx)\n", |
| egl_error_string(code), (long)code); |
| } |
| |
| #define max(a, b) (((a) > (b)) ? (a) : (b)) |
| #define min(a, b) (((a) > (b)) ? (b) : (a)) |
| |
| /* |
| * Compute the boundary vertices of the intersection of the global coordinate |
| * aligned rectangle 'rect', and an arbitrary quadrilateral produced from |
| * 'surf_rect' when transformed from surface coordinates into global coordinates. |
| * The vertices are written to 'ex' and 'ey', and the return value is the |
| * number of vertices. Vertices are produced in clockwise winding order. |
| * Guarantees to produce either zero vertices, or 3-8 vertices with non-zero |
| * polygon area. |
| */ |
| static int |
| calculate_edges(struct weston_view *ev, pixman_box32_t *rect, |
| pixman_box32_t *surf_rect, GLfloat *ex, GLfloat *ey) |
| { |
| |
| struct clip_context ctx; |
| int i, n; |
| GLfloat min_x, max_x, min_y, max_y; |
| struct polygon8 surf = { |
| { surf_rect->x1, surf_rect->x2, surf_rect->x2, surf_rect->x1 }, |
| { surf_rect->y1, surf_rect->y1, surf_rect->y2, surf_rect->y2 }, |
| 4 |
| }; |
| |
| ctx.clip.x1 = rect->x1; |
| ctx.clip.y1 = rect->y1; |
| ctx.clip.x2 = rect->x2; |
| ctx.clip.y2 = rect->y2; |
| |
| /* transform surface to screen space: */ |
| for (i = 0; i < surf.n; i++) |
| weston_view_to_global_float(ev, surf.x[i], surf.y[i], |
| &surf.x[i], &surf.y[i]); |
| |
| /* find bounding box: */ |
| min_x = max_x = surf.x[0]; |
| min_y = max_y = surf.y[0]; |
| |
| for (i = 1; i < surf.n; i++) { |
| min_x = min(min_x, surf.x[i]); |
| max_x = max(max_x, surf.x[i]); |
| min_y = min(min_y, surf.y[i]); |
| max_y = max(max_y, surf.y[i]); |
| } |
| |
| /* First, simple bounding box check to discard early transformed |
| * surface rects that do not intersect with the clip region: |
| */ |
| if ((min_x >= ctx.clip.x2) || (max_x <= ctx.clip.x1) || |
| (min_y >= ctx.clip.y2) || (max_y <= ctx.clip.y1)) |
| return 0; |
| |
| /* Simple case, bounding box edges are parallel to surface edges, |
| * there will be only four edges. We just need to clip the surface |
| * vertices to the clip rect bounds: |
| */ |
| if (!ev->transform.enabled) |
| return clip_simple(&ctx, &surf, ex, ey); |
| |
| /* Transformed case: use a general polygon clipping algorithm to |
| * clip the surface rectangle with each side of 'rect'. |
| * The algorithm is Sutherland-Hodgman, as explained in |
| * http://www.codeguru.com/cpp/misc/misc/graphics/article.php/c8965/Polygon-Clipping.htm |
| * but without looking at any of that code. |
| */ |
| n = clip_transformed(&ctx, &surf, ex, ey); |
| |
| if (n < 3) |
| return 0; |
| |
| return n; |
| } |
| |
| static bool |
| merge_down(pixman_box32_t *a, pixman_box32_t *b, pixman_box32_t *merge) |
| { |
| if (a->x1 == b->x1 && a->x2 == b->x2 && a->y1 == b->y2) { |
| merge->x1 = a->x1; |
| merge->x2 = a->x2; |
| merge->y1 = b->y1; |
| merge->y2 = a->y2; |
| return true; |
| } |
| return false; |
| } |
| |
| static int |
| compress_bands(pixman_box32_t *inrects, int nrects, |
| pixman_box32_t **outrects) |
| { |
| bool merged = false; |
| pixman_box32_t *out, merge_rect; |
| int i, j, nout; |
| |
| if (!nrects) { |
| *outrects = NULL; |
| return 0; |
| } |
| |
| /* nrects is an upper bound - we're not too worried about |
| * allocating a little extra |
| */ |
| out = malloc(sizeof(pixman_box32_t) * nrects); |
| out[0] = inrects[0]; |
| nout = 1; |
| for (i = 1; i < nrects; i++) { |
| for (j = 0; j < nout; j++) { |
| merged = merge_down(&inrects[i], &out[j], &merge_rect); |
| if (merged) { |
| out[j] = merge_rect; |
| break; |
| } |
| } |
| if (!merged) { |
| out[nout] = inrects[i]; |
| nout++; |
| } |
| } |
| *outrects = out; |
| return nout; |
| } |
| |
| static int |
| texture_region(struct weston_view *ev, pixman_region32_t *region, |
| pixman_region32_t *surf_region) |
| { |
| struct gl_surface_state *gs = get_surface_state(ev->surface); |
| struct weston_compositor *ec = ev->surface->compositor; |
| struct gl_renderer *gr = get_renderer(ec); |
| GLfloat *v, inv_width, inv_height; |
| unsigned int *vtxcnt, nvtx = 0; |
| pixman_box32_t *rects, *surf_rects; |
| pixman_box32_t *raw_rects; |
| int i, j, k, nrects, nsurf, raw_nrects; |
| bool used_band_compression; |
| raw_rects = pixman_region32_rectangles(region, &raw_nrects); |
| surf_rects = pixman_region32_rectangles(surf_region, &nsurf); |
| |
| if (raw_nrects < 4) { |
| used_band_compression = false; |
| nrects = raw_nrects; |
| rects = raw_rects; |
| } else { |
| nrects = compress_bands(raw_rects, raw_nrects, &rects); |
| used_band_compression = true; |
| } |
| /* worst case we can have 8 vertices per rect (ie. clipped into |
| * an octagon): |
| */ |
| v = wl_array_add(&gr->vertices, nrects * nsurf * 8 * 4 * sizeof *v); |
| vtxcnt = wl_array_add(&gr->vtxcnt, nrects * nsurf * sizeof *vtxcnt); |
| |
| inv_width = 1.0 / gs->pitch; |
| inv_height = 1.0 / gs->height; |
| |
| for (i = 0; i < nrects; i++) { |
| pixman_box32_t *rect = &rects[i]; |
| for (j = 0; j < nsurf; j++) { |
| pixman_box32_t *surf_rect = &surf_rects[j]; |
| GLfloat sx, sy, bx, by; |
| GLfloat ex[8], ey[8]; /* edge points in screen space */ |
| int n; |
| |
| /* The transformed surface, after clipping to the clip region, |
| * can have as many as eight sides, emitted as a triangle-fan. |
| * The first vertex in the triangle fan can be chosen arbitrarily, |
| * since the area is guaranteed to be convex. |
| * |
| * If a corner of the transformed surface falls outside of the |
| * clip region, instead of emitting one vertex for the corner |
| * of the surface, up to two are emitted for two corresponding |
| * intersection point(s) between the surface and the clip region. |
| * |
| * To do this, we first calculate the (up to eight) points that |
| * form the intersection of the clip rect and the transformed |
| * surface. |
| */ |
| n = calculate_edges(ev, rect, surf_rect, ex, ey); |
| if (n < 3) |
| continue; |
| |
| /* emit edge points: */ |
| for (k = 0; k < n; k++) { |
| weston_view_from_global_float(ev, ex[k], ey[k], |
| &sx, &sy); |
| /* position: */ |
| *(v++) = ex[k]; |
| *(v++) = ey[k]; |
| /* texcoord: */ |
| weston_surface_to_buffer_float(ev->surface, |
| sx, sy, |
| &bx, &by); |
| *(v++) = bx * inv_width; |
| if (gs->y_inverted) { |
| *(v++) = by * inv_height; |
| } else { |
| *(v++) = (gs->height - by) * inv_height; |
| } |
| } |
| |
| vtxcnt[nvtx++] = n; |
| } |
| } |
| |
| if (used_band_compression) |
| free(rects); |
| return nvtx; |
| } |
| |
| static void |
| triangle_fan_debug(struct weston_view *view, int first, int count) |
| { |
| struct weston_compositor *compositor = view->surface->compositor; |
| struct gl_renderer *gr = get_renderer(compositor); |
| int i; |
| GLushort *buffer; |
| GLushort *index; |
| int nelems; |
| static int color_idx = 0; |
| static const GLfloat color[][4] = { |
| { 1.0, 0.0, 0.0, 1.0 }, |
| { 0.0, 1.0, 0.0, 1.0 }, |
| { 0.0, 0.0, 1.0, 1.0 }, |
| { 1.0, 1.0, 1.0, 1.0 }, |
| }; |
| |
| nelems = (count - 1 + count - 2) * 2; |
| |
| buffer = malloc(sizeof(GLushort) * nelems); |
| index = buffer; |
| |
| for (i = 1; i < count; i++) { |
| *index++ = first; |
| *index++ = first + i; |
| } |
| |
| for (i = 2; i < count; i++) { |
| *index++ = first + i - 1; |
| *index++ = first + i; |
| } |
| |
| glUseProgram(gr->solid_shader.program); |
| glUniform4fv(gr->solid_shader.color_uniform, 1, |
| color[color_idx++ % ARRAY_LENGTH(color)]); |
| glDrawElements(GL_LINES, nelems, GL_UNSIGNED_SHORT, buffer); |
| glUseProgram(gr->current_shader->program); |
| free(buffer); |
| } |
| |
| static void |
| repaint_region(struct weston_view *ev, pixman_region32_t *region, |
| pixman_region32_t *surf_region) |
| { |
| struct weston_compositor *ec = ev->surface->compositor; |
| struct gl_renderer *gr = get_renderer(ec); |
| GLfloat *v; |
| unsigned int *vtxcnt; |
| int i, first, nfans; |
| |
| /* The final region to be painted is the intersection of |
| * 'region' and 'surf_region'. However, 'region' is in the global |
| * coordinates, and 'surf_region' is in the surface-local |
| * coordinates. texture_region() will iterate over all pairs of |
| * rectangles from both regions, compute the intersection |
| * polygon for each pair, and store it as a triangle fan if |
| * it has a non-zero area (at least 3 vertices, actually). |
| */ |
| nfans = texture_region(ev, region, surf_region); |
| |
| v = gr->vertices.data; |
| vtxcnt = gr->vtxcnt.data; |
| |
| /* position: */ |
| glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]); |
| glEnableVertexAttribArray(0); |
| |
| /* texcoord: */ |
| glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]); |
| glEnableVertexAttribArray(1); |
| |
| for (i = 0, first = 0; i < nfans; i++) { |
| glDrawArrays(GL_TRIANGLE_FAN, first, vtxcnt[i]); |
| if (gr->fan_debug) |
| triangle_fan_debug(ev, first, vtxcnt[i]); |
| first += vtxcnt[i]; |
| } |
| |
| glDisableVertexAttribArray(1); |
| glDisableVertexAttribArray(0); |
| |
| gr->vertices.size = 0; |
| gr->vtxcnt.size = 0; |
| } |
| |
| static int |
| use_output(struct weston_output *output) |
| { |
| static int errored; |
| struct gl_output_state *go = get_output_state(output); |
| struct gl_renderer *gr = get_renderer(output->compositor); |
| EGLBoolean ret; |
| |
| ret = eglMakeCurrent(gr->egl_display, go->egl_surface, |
| go->egl_surface, gr->egl_context); |
| |
| if (ret == EGL_FALSE) { |
| if (errored) |
| return -1; |
| errored = 1; |
| weston_log("Failed to make EGL context current.\n"); |
| gl_renderer_print_egl_error_state(); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| shader_init(struct gl_shader *shader, struct gl_renderer *gr, |
| const char *vertex_source, const char *fragment_source); |
| |
| static void |
| use_shader(struct gl_renderer *gr, struct gl_shader *shader) |
| { |
| if (!shader->program) { |
| int ret; |
| |
| ret = shader_init(shader, gr, |
| shader->vertex_source, |
| shader->fragment_source); |
| |
| if (ret < 0) |
| weston_log("warning: failed to compile shader\n"); |
| } |
| |
| if (gr->current_shader == shader) |
| return; |
| glUseProgram(shader->program); |
| gr->current_shader = shader; |
| } |
| |
| static void |
| shader_uniforms(struct gl_shader *shader, |
| struct weston_view *view, |
| struct weston_output *output) |
| { |
| int i; |
| struct gl_surface_state *gs = get_surface_state(view->surface); |
| struct gl_output_state *go = get_output_state(output); |
| float alpha = view->alpha; |
| |
| if (view->blending_equation != ZWP_BLENDING_V1_BLENDING_EQUATION_NONE && |
| view->blending_equation != ZWP_BLENDING_V1_BLENDING_EQUATION_OPAQUE) { |
| alpha *= view->blending_alpha; |
| } |
| |
| glUniformMatrix4fv(shader->proj_uniform, |
| 1, GL_FALSE, go->output_matrix.d); |
| glUniform4fv(shader->color_uniform, 1, gs->color); |
| glUniform1f(shader->alpha_uniform, alpha); |
| |
| for (i = 0; i < gs->num_textures; i++) |
| glUniform1i(shader->tex_uniforms[i], i); |
| } |
| |
| static void |
| draw_view(struct weston_view *ev, struct weston_output *output, |
| pixman_region32_t *damage) /* in global coordinates */ |
| { |
| struct weston_compositor *ec = ev->surface->compositor; |
| struct gl_renderer *gr = get_renderer(ec); |
| struct gl_surface_state *gs = get_surface_state(ev->surface); |
| /* repaint bounding region in global coordinates: */ |
| pixman_region32_t repaint; |
| /* opaque region in surface coordinates: */ |
| pixman_region32_t surface_opaque; |
| pixman_region32_t surface_opaque_full; |
| pixman_region32_t *surface_opaque_src_ptr; |
| /* non-opaque region in surface coordinates: */ |
| pixman_region32_t surface_blend; |
| GLint filter; |
| int i; |
| |
| /* In case of a runtime switch of renderers, we may not have received |
| * an attach for this surface since the switch. In that case we don't |
| * have a valid buffer or a proper shader set up so skip rendering. */ |
| if (!gs->shader) |
| return; |
| |
| pixman_region32_init(&repaint); |
| pixman_region32_intersect(&repaint, |
| &ev->transform.boundingbox, damage); |
| pixman_region32_subtract(&repaint, &repaint, &ev->clip); |
| |
| if (!pixman_region32_not_empty(&repaint)) |
| goto out; |
| |
| if (ev->blending_equation == ZWP_BLENDING_V1_BLENDING_EQUATION_PREMULTIPLIED) { |
| glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); |
| } else if (ev->blending_equation == ZWP_BLENDING_V1_BLENDING_EQUATION_STRAIGHT) { |
| glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
| } else { |
| glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); |
| } |
| |
| if (gr->fan_debug) { |
| use_shader(gr, &gr->solid_shader); |
| shader_uniforms(&gr->solid_shader, ev, output); |
| } |
| |
| use_shader(gr, gs->shader); |
| shader_uniforms(gs->shader, ev, output); |
| |
| if (ev->transform.enabled || output->zoom.active || |
| output->current_scale != ev->surface->buffer_viewport.buffer.scale) |
| filter = GL_LINEAR; |
| else |
| filter = GL_NEAREST; |
| |
| for (i = 0; i < gs->num_textures; i++) { |
| glActiveTexture(GL_TEXTURE0 + i); |
| glBindTexture(gs->target, gs->textures[i]); |
| glTexParameteri(gs->target, GL_TEXTURE_MIN_FILTER, filter); |
| glTexParameteri(gs->target, GL_TEXTURE_MAG_FILTER, filter); |
| } |
| |
| /* blended region is whole surface minus opaque region: */ |
| pixman_region32_init_rect(&surface_blend, 0, 0, |
| ev->surface->width, ev->surface->height); |
| if (ev->geometry.scissor_enabled) |
| pixman_region32_intersect(&surface_blend, &surface_blend, |
| &ev->geometry.scissor); |
| pixman_region32_subtract(&surface_blend, &surface_blend, |
| &ev->surface->opaque); |
| |
| if (ev->blending_equation == ZWP_BLENDING_V1_BLENDING_EQUATION_OPAQUE) { |
| pixman_region32_clear(&surface_blend); |
| pixman_region32_init_rect(&surface_opaque_full, 0, 0, |
| ev->surface->width, ev->surface->height); |
| surface_opaque_src_ptr = &surface_opaque_full; |
| } else { |
| surface_opaque_src_ptr = &ev->surface->opaque; |
| } |
| |
| /* XXX: Should we be using ev->transform.opaque here? */ |
| pixman_region32_init(&surface_opaque); |
| if (ev->geometry.scissor_enabled) |
| pixman_region32_intersect(&surface_opaque, |
| surface_opaque_src_ptr, |
| &ev->geometry.scissor); |
| else |
| pixman_region32_copy(&surface_opaque, surface_opaque_src_ptr); |
| |
| if (pixman_region32_not_empty(&surface_opaque)) { |
| if (gs->shader == &gr->texture_shader_rgba) { |
| /* Special case for RGBA textures with possibly |
| * bad data in alpha channel: use the shader |
| * that forces texture alpha = 1.0. |
| * Xwayland surfaces need this. |
| */ |
| use_shader(gr, &gr->texture_shader_rgbx); |
| shader_uniforms(&gr->texture_shader_rgbx, ev, output); |
| } |
| |
| if (ev->alpha < 1.0) |
| glEnable(GL_BLEND); |
| else |
| glDisable(GL_BLEND); |
| |
| repaint_region(ev, &repaint, &surface_opaque); |
| } |
| |
| if (pixman_region32_not_empty(&surface_blend)) { |
| use_shader(gr, gs->shader); |
| glEnable(GL_BLEND); |
| repaint_region(ev, &repaint, &surface_blend); |
| } |
| |
| pixman_region32_fini(&surface_blend); |
| pixman_region32_fini(&surface_opaque); |
| |
| out: |
| pixman_region32_fini(&repaint); |
| } |
| |
| static void |
| repaint_views(struct weston_output *output, pixman_region32_t *damage) |
| { |
| struct weston_compositor *compositor = output->compositor; |
| struct weston_view *view; |
| |
| wl_list_for_each_reverse(view, &compositor->view_list, link) |
| if (view->plane == &compositor->primary_plane) |
| draw_view(view, output, damage); |
| } |
| |
| static void |
| draw_output_border_texture(struct gl_output_state *go, |
| enum gl_renderer_border_side side, |
| int32_t x, int32_t y, |
| int32_t width, int32_t height) |
| { |
| struct gl_border_image *img = &go->borders[side]; |
| static GLushort indices [] = { 0, 1, 3, 3, 1, 2 }; |
| |
| if (!img->data) { |
| if (img->tex) { |
| glDeleteTextures(1, &img->tex); |
| img->tex = 0; |
| } |
| |
| return; |
| } |
| |
| if (!img->tex) { |
| glGenTextures(1, &img->tex); |
| glBindTexture(GL_TEXTURE_2D, img->tex); |
| |
| glTexParameteri(GL_TEXTURE_2D, |
| GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameteri(GL_TEXTURE_2D, |
| GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| glTexParameteri(GL_TEXTURE_2D, |
| GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| glTexParameteri(GL_TEXTURE_2D, |
| GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| } else { |
| glBindTexture(GL_TEXTURE_2D, img->tex); |
| } |
| |
| if (go->border_status & (1 << side)) { |
| glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0); |
| glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, 0); |
| glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, 0); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, |
| img->tex_width, img->height, 0, |
| GL_BGRA_EXT, GL_UNSIGNED_BYTE, img->data); |
| } |
| |
| GLfloat texcoord[] = { |
| 0.0f, 0.0f, |
| (GLfloat)img->width / (GLfloat)img->tex_width, 0.0f, |
| (GLfloat)img->width / (GLfloat)img->tex_width, 1.0f, |
| 0.0f, 1.0f, |
| }; |
| |
| GLfloat verts[] = { |
| x, y, |
| x + width, y, |
| x + width, y + height, |
| x, y + height |
| }; |
| |
| glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, verts); |
| glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, texcoord); |
| glEnableVertexAttribArray(0); |
| glEnableVertexAttribArray(1); |
| |
| glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices); |
| |
| glDisableVertexAttribArray(1); |
| glDisableVertexAttribArray(0); |
| } |
| |
| static int |
| output_has_borders(struct weston_output *output) |
| { |
| struct gl_output_state *go = get_output_state(output); |
| |
| return go->borders[GL_RENDERER_BORDER_TOP].data || |
| go->borders[GL_RENDERER_BORDER_RIGHT].data || |
| go->borders[GL_RENDERER_BORDER_BOTTOM].data || |
| go->borders[GL_RENDERER_BORDER_LEFT].data; |
| } |
| |
| static void |
| draw_output_borders(struct weston_output *output, |
| enum gl_border_status border_status) |
| { |
| struct gl_output_state *go = get_output_state(output); |
| struct gl_renderer *gr = get_renderer(output->compositor); |
| struct gl_shader *shader = &gr->texture_shader_rgba; |
| struct gl_border_image *top, *bottom, *left, *right; |
| struct weston_matrix matrix; |
| int full_width, full_height; |
| |
| if (border_status == BORDER_STATUS_CLEAN) |
| return; /* Clean. Nothing to do. */ |
| |
| top = &go->borders[GL_RENDERER_BORDER_TOP]; |
| bottom = &go->borders[GL_RENDERER_BORDER_BOTTOM]; |
| left = &go->borders[GL_RENDERER_BORDER_LEFT]; |
| right = &go->borders[GL_RENDERER_BORDER_RIGHT]; |
| |
| full_width = output->current_mode->width + left->width + right->width; |
| full_height = output->current_mode->height + top->height + bottom->height; |
| |
| glDisable(GL_BLEND); |
| use_shader(gr, shader); |
| |
| glViewport(0, 0, full_width, full_height); |
| |
| weston_matrix_init(&matrix); |
| weston_matrix_translate(&matrix, -full_width/2.0, -full_height/2.0, 0); |
| weston_matrix_scale(&matrix, 2.0/full_width, -2.0/full_height, 1); |
| glUniformMatrix4fv(shader->proj_uniform, 1, GL_FALSE, matrix.d); |
| |
| glUniform1i(shader->tex_uniforms[0], 0); |
| glUniform1f(shader->alpha_uniform, 1); |
| glActiveTexture(GL_TEXTURE0); |
| |
| if (border_status & BORDER_TOP_DIRTY) |
| draw_output_border_texture(go, GL_RENDERER_BORDER_TOP, |
| 0, 0, |
| full_width, top->height); |
| if (border_status & BORDER_LEFT_DIRTY) |
| draw_output_border_texture(go, GL_RENDERER_BORDER_LEFT, |
| 0, top->height, |
| left->width, output->current_mode->height); |
| if (border_status & BORDER_RIGHT_DIRTY) |
| draw_output_border_texture(go, GL_RENDERER_BORDER_RIGHT, |
| full_width - right->width, top->height, |
| right->width, output->current_mode->height); |
| if (border_status & BORDER_BOTTOM_DIRTY) |
| draw_output_border_texture(go, GL_RENDERER_BORDER_BOTTOM, |
| 0, full_height - bottom->height, |
| full_width, bottom->height); |
| } |
| |
| static void |
| output_get_border_damage(struct weston_output *output, |
| enum gl_border_status border_status, |
| pixman_region32_t *damage) |
| { |
| struct gl_output_state *go = get_output_state(output); |
| struct gl_border_image *top, *bottom, *left, *right; |
| int full_width, full_height; |
| |
| if (border_status == BORDER_STATUS_CLEAN) |
| return; /* Clean. Nothing to do. */ |
| |
| top = &go->borders[GL_RENDERER_BORDER_TOP]; |
| bottom = &go->borders[GL_RENDERER_BORDER_BOTTOM]; |
| left = &go->borders[GL_RENDERER_BORDER_LEFT]; |
| right = &go->borders[GL_RENDERER_BORDER_RIGHT]; |
| |
| full_width = output->current_mode->width + left->width + right->width; |
| full_height = output->current_mode->height + top->height + bottom->height; |
| if (border_status & BORDER_TOP_DIRTY) |
| pixman_region32_union_rect(damage, damage, |
| 0, 0, |
| full_width, top->height); |
| if (border_status & BORDER_LEFT_DIRTY) |
| pixman_region32_union_rect(damage, damage, |
| 0, top->height, |
| left->width, output->current_mode->height); |
| if (border_status & BORDER_RIGHT_DIRTY) |
| pixman_region32_union_rect(damage, damage, |
| full_width - right->width, top->height, |
| right->width, output->current_mode->height); |
| if (border_status & BORDER_BOTTOM_DIRTY) |
| pixman_region32_union_rect(damage, damage, |
| 0, full_height - bottom->height, |
| full_width, bottom->height); |
| } |
| |
| static void |
| output_get_damage(struct weston_output *output, |
| pixman_region32_t *buffer_damage, uint32_t *border_damage) |
| { |
| struct gl_output_state *go = get_output_state(output); |
| struct gl_renderer *gr = get_renderer(output->compositor); |
| EGLint buffer_age = 0; |
| EGLBoolean ret; |
| int i; |
| |
| if (gr->has_egl_buffer_age) { |
| ret = eglQuerySurface(gr->egl_display, go->egl_surface, |
| EGL_BUFFER_AGE_EXT, &buffer_age); |
| if (ret == EGL_FALSE) { |
| weston_log("buffer age query failed.\n"); |
| gl_renderer_print_egl_error_state(); |
| } |
| } |
| |
| if (buffer_age == 0 || buffer_age - 1 > BUFFER_DAMAGE_COUNT) { |
| pixman_region32_copy(buffer_damage, &output->region); |
| *border_damage = BORDER_ALL_DIRTY; |
| } else { |
| for (i = 0; i < buffer_age - 1; i++) |
| *border_damage |= go->border_damage[(go->buffer_damage_index + i) % BUFFER_DAMAGE_COUNT]; |
| |
| if (*border_damage & BORDER_SIZE_CHANGED) { |
| /* If we've had a resize, we have to do a full |
| * repaint. */ |
| *border_damage |= BORDER_ALL_DIRTY; |
| pixman_region32_copy(buffer_damage, &output->region); |
| } else { |
| for (i = 0; i < buffer_age - 1; i++) |
| pixman_region32_union(buffer_damage, |
| buffer_damage, |
| &go->buffer_damage[(go->buffer_damage_index + i) % BUFFER_DAMAGE_COUNT]); |
| } |
| } |
| } |
| |
| static void |
| output_rotate_damage(struct weston_output *output, |
| pixman_region32_t *output_damage, |
| enum gl_border_status border_status) |
| { |
| struct gl_output_state *go = get_output_state(output); |
| struct gl_renderer *gr = get_renderer(output->compositor); |
| |
| if (!gr->has_egl_buffer_age) |
| return; |
| |
| go->buffer_damage_index += BUFFER_DAMAGE_COUNT - 1; |
| go->buffer_damage_index %= BUFFER_DAMAGE_COUNT; |
| |
| pixman_region32_copy(&go->buffer_damage[go->buffer_damage_index], output_damage); |
| go->border_damage[go->buffer_damage_index] = border_status; |
| } |
| |
| /* NOTE: We now allow falling back to ARGB gl visuals when XRGB is |
| * unavailable, so we're assuming the background has no transparency |
| * and that everything with a blend, like drop shadows, will have something |
| * opaque (like the background) drawn underneath it. |
| * |
| * Depending on the underlying hardware, violating that assumption could |
| * result in seeing through to another display plane. |
| */ |
| static void |
| gl_renderer_repaint_output(struct weston_output *output, |
| pixman_region32_t *output_damage) |
| { |
| struct gl_output_state *go = get_output_state(output); |
| struct weston_compositor *compositor = output->compositor; |
| struct gl_renderer *gr = get_renderer(compositor); |
| EGLBoolean ret; |
| static int errored; |
| int i, nrects, buffer_height; |
| EGLint *egl_damage, *d; |
| pixman_box32_t *rects; |
| pixman_region32_t buffer_damage, total_damage; |
| enum gl_border_status border_damage = BORDER_STATUS_CLEAN; |
| EGLSyncKHR begin_render_sync, end_render_sync; |
| |
| if (use_output(output) < 0) |
| return; |
| |
| begin_render_sync = timeline_create_render_sync(gr); |
| |
| /* Calculate the viewport */ |
| glViewport(go->borders[GL_RENDERER_BORDER_LEFT].width, |
| go->borders[GL_RENDERER_BORDER_BOTTOM].height, |
| output->current_mode->width, |
| output->current_mode->height); |
| |
| /* Calculate the global GL matrix */ |
| go->output_matrix = output->matrix; |
| weston_matrix_translate(&go->output_matrix, |
| -(output->current_mode->width / 2.0), |
| -(output->current_mode->height / 2.0), 0); |
| weston_matrix_scale(&go->output_matrix, |
| 2.0 / output->current_mode->width, |
| -2.0 / output->current_mode->height, 1); |
| |
| /* if debugging, redraw everything outside the damage to clean up |
| * debug lines from the previous draw on this buffer: |
| */ |
| if (gr->fan_debug) { |
| pixman_region32_t undamaged; |
| pixman_region32_init(&undamaged); |
| pixman_region32_subtract(&undamaged, &output->region, |
| output_damage); |
| gr->fan_debug = 0; |
| repaint_views(output, &undamaged); |
| gr->fan_debug = 1; |
| pixman_region32_fini(&undamaged); |
| } |
| |
| pixman_region32_init(&total_damage); |
| pixman_region32_init(&buffer_damage); |
| |
| output_get_damage(output, &buffer_damage, &border_damage); |
| output_rotate_damage(output, output_damage, go->border_status); |
| |
| pixman_region32_union(&total_damage, &buffer_damage, output_damage); |
| border_damage |= go->border_status; |
| |
| repaint_views(output, &total_damage); |
| |
| pixman_region32_fini(&total_damage); |
| pixman_region32_fini(&buffer_damage); |
| |
| draw_output_borders(output, border_damage); |
| |
| pixman_region32_copy(&output->previous_damage, output_damage); |
| wl_signal_emit(&output->frame_signal, output); |
| |
| end_render_sync = timeline_create_render_sync(gr); |
| |
| if (gr->swap_buffers_with_damage) { |
| pixman_region32_init(&buffer_damage); |
| weston_transformed_region(output->width, output->height, |
| output->transform, |
| output->current_scale, |
| output_damage, &buffer_damage); |
| |
| if (output_has_borders(output)) { |
| pixman_region32_translate(&buffer_damage, |
| go->borders[GL_RENDERER_BORDER_LEFT].width, |
| go->borders[GL_RENDERER_BORDER_TOP].height); |
| output_get_border_damage(output, go->border_status, |
| &buffer_damage); |
| } |
| |
| rects = pixman_region32_rectangles(&buffer_damage, &nrects); |
| egl_damage = malloc(nrects * 4 * sizeof(EGLint)); |
| |
| buffer_height = go->borders[GL_RENDERER_BORDER_TOP].height + |
| output->current_mode->height + |
| go->borders[GL_RENDERER_BORDER_BOTTOM].height; |
| |
| d = egl_damage; |
| for (i = 0; i < nrects; ++i) { |
| *d++ = rects[i].x1; |
| *d++ = buffer_height - rects[i].y2; |
| *d++ = rects[i].x2 - rects[i].x1; |
| *d++ = rects[i].y2 - rects[i].y1; |
| } |
| ret = gr->swap_buffers_with_damage(gr->egl_display, |
| go->egl_surface, |
| egl_damage, nrects); |
| free(egl_damage); |
| pixman_region32_fini(&buffer_damage); |
| } else { |
| ret = eglSwapBuffers(gr->egl_display, go->egl_surface); |
| } |
| |
| if (ret == EGL_FALSE && !errored) { |
| errored = 1; |
| weston_log("Failed in eglSwapBuffers.\n"); |
| gl_renderer_print_egl_error_state(); |
| } |
| |
| go->border_status = BORDER_STATUS_CLEAN; |
| |
| /* We have to submit the render sync objects after swap buffers, since |
| * the objects get assigned a valid sync file fd only after a gl flush. |
| */ |
| timeline_submit_render_sync(gr, compositor, output, begin_render_sync, |
| TIMELINE_RENDER_POINT_TYPE_BEGIN); |
| timeline_submit_render_sync(gr, compositor, output, end_render_sync, |
| TIMELINE_RENDER_POINT_TYPE_END); |
| } |
| |
| static int |
| gl_renderer_read_pixels(struct weston_output *output, |
| pixman_format_code_t format, void *pixels, |
| uint32_t x, uint32_t y, |
| uint32_t width, uint32_t height) |
| { |
| GLenum gl_format; |
| struct gl_output_state *go = get_output_state(output); |
| |
| x += go->borders[GL_RENDERER_BORDER_LEFT].width; |
| y += go->borders[GL_RENDERER_BORDER_BOTTOM].height; |
| |
| switch (format) { |
| case PIXMAN_a8r8g8b8: |
| gl_format = GL_BGRA_EXT; |
| break; |
| case PIXMAN_a8b8g8r8: |
| gl_format = GL_RGBA; |
| break; |
| default: |
| return -1; |
| } |
| |
| if (use_output(output) < 0) |
| return -1; |
| |
| glPixelStorei(GL_PACK_ALIGNMENT, 1); |
| glReadPixels(x, y, width, height, gl_format, |
| GL_UNSIGNED_BYTE, pixels); |
| |
| return 0; |
| } |
| |
| static GLenum gl_format_from_internal(GLenum internal_format) |
| { |
| switch (internal_format) { |
| case GL_R8_EXT: |
| return GL_RED_EXT; |
| case GL_RG8_EXT: |
| return GL_RG_EXT; |
| default: |
| return internal_format; |
| } |
| } |
| |
| static void |
| gl_renderer_flush_damage(struct weston_surface *surface) |
| { |
| struct gl_renderer *gr = get_renderer(surface->compositor); |
| struct gl_surface_state *gs = get_surface_state(surface); |
| struct weston_buffer *buffer = gs->buffer_ref.buffer; |
| struct weston_view *view; |
| bool texture_used; |
| pixman_box32_t *rectangles; |
| uint8_t *data; |
| int i, j, n; |
| |
| pixman_region32_union(&gs->texture_damage, |
| &gs->texture_damage, &surface->damage); |
| |
| if (!buffer) |
| return; |
| |
| /* Avoid upload, if the texture won't be used this time. |
| * We still accumulate the damage in texture_damage, and |
| * hold the reference to the buffer, in case the surface |
| * migrates back to the primary plane. |
| */ |
| texture_used = false; |
| wl_list_for_each(view, &surface->views, surface_link) { |
| if (view->plane == &surface->compositor->primary_plane) { |
| texture_used = true; |
| break; |
| } |
| } |
| if (!texture_used) |
| return; |
| |
| if (!pixman_region32_not_empty(&gs->texture_damage) && |
| !gs->needs_full_upload) |
| goto done; |
| |
| data = wl_shm_buffer_get_data(buffer->shm_buffer); |
| |
| if (!gr->has_unpack_subimage) { |
| wl_shm_buffer_begin_access(buffer->shm_buffer); |
| for (j = 0; j < gs->num_textures; j++) { |
| glBindTexture(GL_TEXTURE_2D, gs->textures[j]); |
| glTexImage2D(GL_TEXTURE_2D, 0, |
| gs->gl_format[j], |
| gs->pitch / gs->hsub[j], |
| buffer->height / gs->vsub[j], |
| 0, |
| gl_format_from_internal(gs->gl_format[j]), |
| gs->gl_pixel_type, |
| data + gs->offset[j]); |
| } |
| wl_shm_buffer_end_access(buffer->shm_buffer); |
| |
| goto done; |
| } |
| |
| if (gs->needs_full_upload) { |
| glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, 0); |
| glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, 0); |
| wl_shm_buffer_begin_access(buffer->shm_buffer); |
| for (j = 0; j < gs->num_textures; j++) { |
| glBindTexture(GL_TEXTURE_2D, gs->textures[j]); |
| glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, |
| gs->pitch / gs->hsub[j]); |
| glTexImage2D(GL_TEXTURE_2D, 0, |
| gs->gl_format[j], |
| gs->pitch / gs->hsub[j], |
| buffer->height / gs->vsub[j], |
| 0, |
| gl_format_from_internal(gs->gl_format[j]), |
| gs->gl_pixel_type, |
| data + gs->offset[j]); |
| } |
| wl_shm_buffer_end_access(buffer->shm_buffer); |
| goto done; |
| } |
| |
| rectangles = pixman_region32_rectangles(&gs->texture_damage, &n); |
| wl_shm_buffer_begin_access(buffer->shm_buffer); |
| for (i = 0; i < n; i++) { |
| pixman_box32_t r; |
| |
| r = weston_surface_to_buffer_rect(surface, rectangles[i]); |
| |
| for (j = 0; j < gs->num_textures; j++) { |
| glBindTexture(GL_TEXTURE_2D, gs->textures[j]); |
| glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, |
| gs->pitch / gs->hsub[j]); |
| glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, |
| r.x1 / gs->hsub[j]); |
| glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, |
| r.y1 / gs->hsub[j]); |
| glTexSubImage2D(GL_TEXTURE_2D, 0, |
| r.x1 / gs->hsub[j], |
| r.y1 / gs->vsub[j], |
| (r.x2 - r.x1) / gs->hsub[j], |
| (r.y2 - r.y1) / gs->vsub[j], |
| gl_format_from_internal(gs->gl_format[j]), |
| gs->gl_pixel_type, |
| data + gs->offset[j]); |
| } |
| } |
| wl_shm_buffer_end_access(buffer->shm_buffer); |
| |
| done: |
| pixman_region32_fini(&gs->texture_damage); |
| pixman_region32_init(&gs->texture_damage); |
| gs->needs_full_upload = false; |
| |
| weston_buffer_reference(&gs->buffer_ref, NULL); |
| } |
| |
| static void |
| ensure_textures(struct gl_surface_state *gs, int num_textures) |
| { |
| int i; |
| |
| if (num_textures <= gs->num_textures) |
| return; |
| |
| for (i = gs->num_textures; i < num_textures; i++) { |
| glGenTextures(1, &gs->textures[i]); |
| glBindTexture(gs->target, gs->textures[i]); |
| glTexParameteri(gs->target, |
| GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameteri(gs->target, |
| GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| } |
| gs->num_textures = num_textures; |
| glBindTexture(gs->target, 0); |
| } |
| |
| static void |
| gl_renderer_attach_shm(struct weston_surface *es, struct weston_buffer *buffer, |
| struct wl_shm_buffer *shm_buffer) |
| { |
| struct weston_compositor *ec = es->compositor; |
| struct gl_renderer *gr = get_renderer(ec); |
| struct gl_surface_state *gs = get_surface_state(es); |
| GLenum gl_format[3] = {0, 0, 0}; |
| GLenum gl_pixel_type; |
| int pitch; |
| int num_planes; |
| |
| buffer->shm_buffer = shm_buffer; |
| buffer->width = wl_shm_buffer_get_width(shm_buffer); |
| buffer->height = wl_shm_buffer_get_height(shm_buffer); |
| |
| num_planes = 1; |
| gs->offset[0] = 0; |
| gs->hsub[0] = 1; |
| gs->vsub[0] = 1; |
| |
| switch (wl_shm_buffer_get_format(shm_buffer)) { |
| case WL_SHM_FORMAT_XRGB8888: |
| gs->shader = &gr->texture_shader_rgbx; |
| pitch = wl_shm_buffer_get_stride(shm_buffer) / 4; |
| gl_format[0] = GL_BGRA_EXT; |
| gl_pixel_type = GL_UNSIGNED_BYTE; |
| break; |
| case WL_SHM_FORMAT_ARGB8888: |
| gs->shader = &gr->texture_shader_rgba; |
| pitch = wl_shm_buffer_get_stride(shm_buffer) / 4; |
| gl_format[0] = GL_BGRA_EXT; |
| gl_pixel_type = GL_UNSIGNED_BYTE; |
| break; |
| case WL_SHM_FORMAT_RGB565: |
| gs->shader = &gr->texture_shader_rgbx; |
| pitch = wl_shm_buffer_get_stride(shm_buffer) / 2; |
| gl_format[0] = GL_RGB; |
| gl_pixel_type = GL_UNSIGNED_SHORT_5_6_5; |
| break; |
| case WL_SHM_FORMAT_YUV420: |
| gs->shader = &gr->texture_shader_y_u_v; |
| pitch = wl_shm_buffer_get_stride(shm_buffer); |
| gl_pixel_type = GL_UNSIGNED_BYTE; |
| num_planes = 3; |
| gs->offset[1] = gs->offset[0] + (pitch / gs->hsub[0]) * |
| (buffer->height / gs->vsub[0]); |
| gs->hsub[1] = 2; |
| gs->vsub[1] = 2; |
| gs->offset[2] = gs->offset[1] + (pitch / gs->hsub[1]) * |
| (buffer->height / gs->vsub[1]); |
| gs->hsub[2] = 2; |
| gs->vsub[2] = 2; |
| if (gr->has_gl_texture_rg) { |
| gl_format[0] = GL_R8_EXT; |
| gl_format[1] = GL_R8_EXT; |
| gl_format[2] = GL_R8_EXT; |
| } else { |
| gl_format[0] = GL_LUMINANCE; |
| gl_format[1] = GL_LUMINANCE; |
| gl_format[2] = GL_LUMINANCE; |
| } |
| break; |
| case WL_SHM_FORMAT_NV12: |
| pitch = wl_shm_buffer_get_stride(shm_buffer); |
| gl_pixel_type = GL_UNSIGNED_BYTE; |
| num_planes = 2; |
| gs->offset[1] = gs->offset[0] + (pitch / gs->hsub[0]) * |
| (buffer->height / gs->vsub[0]); |
| gs->hsub[1] = 2; |
| gs->vsub[1] = 2; |
| if (gr->has_gl_texture_rg) { |
| gs->shader = &gr->texture_shader_y_uv; |
| gl_format[0] = GL_R8_EXT; |
| gl_format[1] = GL_RG8_EXT; |
| } else { |
| gs->shader = &gr->texture_shader_y_xuxv; |
| gl_format[0] = GL_LUMINANCE; |
| gl_format[1] = GL_LUMINANCE_ALPHA; |
| } |
| break; |
| case WL_SHM_FORMAT_YUYV: |
| gs->shader = &gr->texture_shader_y_xuxv; |
| pitch = wl_shm_buffer_get_stride(shm_buffer) / 2; |
| gl_pixel_type = GL_UNSIGNED_BYTE; |
| num_planes = 2; |
| gs->hsub[1] = 2; |
| gs->vsub[1] = 1; |
| if (gr->has_gl_texture_rg) |
| gl_format[0] = GL_RG8_EXT; |
| else |
| gl_format[0] = GL_LUMINANCE_ALPHA; |
| gl_format[1] = GL_BGRA_EXT; |
| break; |
| default: |
| weston_log("warning: unknown shm buffer format: %08x\n", |
| wl_shm_buffer_get_format(shm_buffer)); |
| return; |
| } |
| |
| /* Only allocate a texture if it doesn't match existing one. |
| * If a switch from DRM allocated buffer to a SHM buffer is |
| * happening, we need to allocate a new texture buffer. */ |
| if (pitch != gs->pitch || |
| buffer->height != gs->height || |
| gl_format[0] != gs->gl_format[0] || |
| gl_format[1] != gs->gl_format[1] || |
| gl_format[2] != gs->gl_format[2] || |
| gl_pixel_type != gs->gl_pixel_type || |
| gs->buffer_type != BUFFER_TYPE_SHM) { |
| gs->pitch = pitch; |
| gs->height = buffer->height; |
| gs->target = GL_TEXTURE_2D; |
| gs->gl_format[0] = gl_format[0]; |
| gs->gl_format[1] = gl_format[1]; |
| gs->gl_format[2] = gl_format[2]; |
| gs->gl_pixel_type = gl_pixel_type; |
| gs->buffer_type = BUFFER_TYPE_SHM; |
| gs->needs_full_upload = true; |
| gs->y_inverted = 1; |
| |
| gs->surface = es; |
| |
| ensure_textures(gs, num_planes); |
| } |
| } |
| |
| static void |
| gl_renderer_attach_egl(struct weston_surface *es, struct weston_buffer *buffer, |
| uint32_t format) |
| { |
| struct weston_compositor *ec = es->compositor; |
| struct gl_renderer *gr = get_renderer(ec); |
| struct gl_surface_state *gs = get_surface_state(es); |
| EGLint attribs[3]; |
| int i, num_planes; |
| |
| buffer->legacy_buffer = (struct wl_buffer *)buffer->resource; |
| gr->query_buffer(gr->egl_display, buffer->legacy_buffer, |
| EGL_WIDTH, &buffer->width); |
| gr->query_buffer(gr->egl_display, buffer->legacy_buffer, |
| EGL_HEIGHT, &buffer->height); |
| gr->query_buffer(gr->egl_display, buffer->legacy_buffer, |
| EGL_WAYLAND_Y_INVERTED_WL, &buffer->y_inverted); |
| |
| for (i = 0; i < gs->num_images; i++) { |
| egl_image_unref(gs->images[i]); |
| gs->images[i] = NULL; |
| } |
| gs->num_images = 0; |
| gs->target = GL_TEXTURE_2D; |
| switch (format) { |
| case EGL_TEXTURE_RGB: |
| case EGL_TEXTURE_RGBA: |
| default: |
| num_planes = 1; |
| gs->shader = &gr->texture_shader_rgba; |
| break; |
| case EGL_TEXTURE_EXTERNAL_WL: |
| num_planes = 1; |
| gs->target = GL_TEXTURE_EXTERNAL_OES; |
| gs->shader = &gr->texture_shader_egl_external; |
| break; |
| case EGL_TEXTURE_Y_UV_WL: |
| num_planes = 2; |
| gs->shader = &gr->texture_shader_y_uv; |
| break; |
| case EGL_TEXTURE_Y_U_V_WL: |
| num_planes = 3; |
| gs->shader = &gr->texture_shader_y_u_v; |
| break; |
| case EGL_TEXTURE_Y_XUXV_WL: |
| num_planes = 2; |
| gs->shader = &gr->texture_shader_y_xuxv; |
| break; |
| } |
| |
| ensure_textures(gs, num_planes); |
| for (i = 0; i < num_planes; i++) { |
| attribs[0] = EGL_WAYLAND_PLANE_WL; |
| attribs[1] = i; |
| attribs[2] = EGL_NONE; |
| gs->images[i] = egl_image_create(gr, |
| EGL_WAYLAND_BUFFER_WL, |
| buffer->legacy_buffer, |
| attribs); |
| if (!gs->images[i]) { |
| weston_log("failed to create img for plane %d\n", i); |
| continue; |
| } |
| gs->num_images++; |
| |
| glActiveTexture(GL_TEXTURE0 + i); |
| glBindTexture(gs->target, gs->textures[i]); |
| gr->image_target_texture_2d(gs->target, |
| gs->images[i]->image); |
| } |
| |
| gs->pitch = buffer->width; |
| gs->height = buffer->height; |
| gs->buffer_type = BUFFER_TYPE_EGL; |
| gs->y_inverted = buffer->y_inverted; |
| } |
| |
| static void |
| gl_renderer_destroy_dmabuf(struct linux_dmabuf_buffer *dmabuf) |
| { |
| struct dmabuf_image *image = linux_dmabuf_buffer_get_user_data(dmabuf); |
| |
| dmabuf_image_destroy(image); |
| } |
| |
| static struct egl_image * |
| import_simple_dmabuf(struct gl_renderer *gr, |
| struct dmabuf_attributes *attributes) |
| { |
| struct egl_image *image; |
| EGLint attribs[50]; |
| int atti = 0; |
| bool has_modifier; |
| |
| /* This requires the Mesa commit in |
| * Mesa 10.3 (08264e5dad4df448e7718e782ad9077902089a07) or |
| * Mesa 10.2.7 (55d28925e6109a4afd61f109e845a8a51bd17652). |
| * Otherwise Mesa closes the fd behind our back and re-importing |
| * will fail. |
| * https://bugs.freedesktop.org/show_bug.cgi?id=76188 |
| */ |
| |
| attribs[atti++] = EGL_WIDTH; |
| attribs[atti++] = attributes->width; |
| attribs[atti++] = EGL_HEIGHT; |
| attribs[atti++] = attributes->height; |
| attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT; |
| attribs[atti++] = attributes->format; |
| |
| if (attributes->modifier[0] != DRM_FORMAT_MOD_INVALID) { |
| if (!gr->has_dmabuf_import_modifiers) |
| return NULL; |
| has_modifier = true; |
| } else { |
| has_modifier = false; |
| } |
| |
| if (attributes->n_planes > 0) { |
| attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT; |
| attribs[atti++] = attributes->fd[0]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT; |
| attribs[atti++] = attributes->offset[0]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT; |
| attribs[atti++] = attributes->stride[0]; |
| if (has_modifier) { |
| attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT; |
| attribs[atti++] = attributes->modifier[0] & 0xFFFFFFFF; |
| attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT; |
| attribs[atti++] = attributes->modifier[0] >> 32; |
| } |
| } |
| |
| if (attributes->n_planes > 1) { |
| attribs[atti++] = EGL_DMA_BUF_PLANE1_FD_EXT; |
| attribs[atti++] = attributes->fd[1]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE1_OFFSET_EXT; |
| attribs[atti++] = attributes->offset[1]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE1_PITCH_EXT; |
| attribs[atti++] = attributes->stride[1]; |
| if (has_modifier) { |
| attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT; |
| attribs[atti++] = attributes->modifier[1] & 0xFFFFFFFF; |
| attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT; |
| attribs[atti++] = attributes->modifier[1] >> 32; |
| } |
| } |
| |
| if (attributes->n_planes > 2) { |
| attribs[atti++] = EGL_DMA_BUF_PLANE2_FD_EXT; |
| attribs[atti++] = attributes->fd[2]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE2_OFFSET_EXT; |
| attribs[atti++] = attributes->offset[2]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE2_PITCH_EXT; |
| attribs[atti++] = attributes->stride[2]; |
| if (has_modifier) { |
| attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT; |
| attribs[atti++] = attributes->modifier[2] & 0xFFFFFFFF; |
| attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT; |
| attribs[atti++] = attributes->modifier[2] >> 32; |
| } |
| } |
| |
| if (gr->has_dmabuf_import_modifiers) { |
| if (attributes->n_planes > 3) { |
| attribs[atti++] = EGL_DMA_BUF_PLANE3_FD_EXT; |
| attribs[atti++] = attributes->fd[3]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE3_OFFSET_EXT; |
| attribs[atti++] = attributes->offset[3]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE3_PITCH_EXT; |
| attribs[atti++] = attributes->stride[3]; |
| attribs[atti++] = EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT; |
| attribs[atti++] = attributes->modifier[3] & 0xFFFFFFFF; |
| attribs[atti++] = EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT; |
| attribs[atti++] = attributes->modifier[3] >> 32; |
| } |
| } |
| |
| attribs[atti++] = EGL_NONE; |
| |
| image = egl_image_create(gr, EGL_LINUX_DMA_BUF_EXT, NULL, |
| attribs); |
| |
| return image; |
| } |
| |
| /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate |
| * some of the definitions here so that building Weston won't require |
| * bleeding-edge kernel headers. |
| */ |
| #ifndef DRM_FORMAT_R8 |
| #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */ |
| #endif |
| |
| #ifndef DRM_FORMAT_GR88 |
| #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */ |
| #endif |
| |
| struct yuv_format_descriptor yuv_formats[] = { |
| { |
| .format = DRM_FORMAT_YUYV, |
| .input_planes = 1, |
| .output_planes = 2, |
| .texture_type = EGL_TEXTURE_Y_XUXV_WL, |
| {{ |
| .width_divisor = 1, |
| .height_divisor = 1, |
| .format = DRM_FORMAT_GR88, |
| .plane_index = 0 |
| }, { |
| .width_divisor = 2, |
| .height_divisor = 1, |
| .format = DRM_FORMAT_ARGB8888, |
| .plane_index = 0 |
| }} |
| }, { |
| .format = DRM_FORMAT_NV12, |
| .input_planes = 2, |
| .output_planes = 2, |
| .texture_type = EGL_TEXTURE_Y_UV_WL, |
| {{ |
| .width_divisor = 1, |
| .height_divisor = 1, |
| .format = DRM_FORMAT_R8, |
| .plane_index = 0 |
| }, { |
| .width_divisor = 2, |
| .height_divisor = 2, |
| .format = DRM_FORMAT_GR88, |
| .plane_index = 1 |
| }} |
| }, { |
| .format = DRM_FORMAT_YUV420, |
| .input_planes = 3, |
| .output_planes = 3, |
| .texture_type = EGL_TEXTURE_Y_U_V_WL, |
| {{ |
| .width_divisor = 1, |
| .height_divisor = 1, |
| .format = DRM_FORMAT_R8, |
| .plane_index = 0 |
| }, { |
| .width_divisor = 2, |
| .height_divisor = 2, |
| .format = DRM_FORMAT_R8, |
| .plane_index = 1 |
| }, { |
| .width_divisor = 2, |
| .height_divisor = 2, |
| .format = DRM_FORMAT_R8, |
| .plane_index = 2 |
| }} |
| }, { |
| .format = DRM_FORMAT_YUV444, |
| .input_planes = 3, |
| .output_planes = 3, |
| .texture_type = EGL_TEXTURE_Y_U_V_WL, |
| {{ |
| .width_divisor = 1, |
| .height_divisor = 1, |
| .format = DRM_FORMAT_R8, |
| .plane_index = 0 |
| }, { |
| .width_divisor = 1, |
| .height_divisor = 1, |
| .format = DRM_FORMAT_R8, |
| .plane_index = 1 |
| }, { |
| .width_divisor = 1, |
| .height_divisor = 1, |
| .format = DRM_FORMAT_R8, |
| .plane_index = 2 |
| }} |
| } |
| }; |
| |
| static struct egl_image * |
| import_dmabuf_single_plane(struct gl_renderer *gr, |
| const struct dmabuf_attributes *attributes, |
| struct yuv_plane_descriptor *descriptor) |
| { |
| struct dmabuf_attributes plane; |
| struct egl_image *image; |
| char fmt[4]; |
| |
| plane.width = attributes->width / descriptor->width_divisor; |
| plane.height = attributes->height / descriptor->height_divisor; |
| plane.format = descriptor->format; |
| plane.n_planes = 1; |
| plane.fd[0] = attributes->fd[descriptor->plane_index]; |
| plane.offset[0] = attributes->offset[descriptor->plane_index]; |
| plane.stride[0] = attributes->stride[descriptor->plane_index]; |
| plane.modifier[0] = attributes->modifier[descriptor->plane_index]; |
| |
| image = import_simple_dmabuf(gr, &plane); |
| if (!image) { |
| weston_log("Failed to import plane %d as %.4s\n", |
| descriptor->plane_index, |
| dump_format(descriptor->format, fmt)); |
| return NULL; |
| } |
| |
| return image; |
| } |
| |
| static bool |
| import_yuv_dmabuf(struct gl_renderer *gr, |
| struct dmabuf_image *image) |
| { |
| unsigned i; |
| int j; |
| int ret; |
| struct yuv_format_descriptor *format = NULL; |
| struct dmabuf_attributes *attributes = &image->dmabuf->attributes; |
| char fmt[4]; |
| |
| for (i = 0; i < ARRAY_LENGTH(yuv_formats); ++i) { |
| if (yuv_formats[i].format == attributes->format) { |
| format = &yuv_formats[i]; |
| break; |
| } |
| } |
| |
| if (!format) { |
| weston_log("Error during import, and no known conversion for format " |
| "%.4s in the renderer\n", |
| dump_format(attributes->format, fmt)); |
| return false; |
| } |
| |
| if (attributes->n_planes != format->input_planes) { |
| weston_log("%.4s dmabuf must contain %d plane%s (%d provided)\n", |
| dump_format(format->format, fmt), |
| format->input_planes, |
| (format->input_planes > 1) ? "s" : "", |
| attributes->n_planes); |
| return false; |
| } |
| |
| for (j = 0; j < format->output_planes; ++j) { |
| image->images[j] = import_dmabuf_single_plane(gr, attributes, |
| &format->plane[j]); |
| if (!image->images[j]) { |
| while (j) { |
| ret = egl_image_unref(image->images[--j]); |
| assert(ret == 0); |
| } |
| return false; |
| } |
| } |
| |
| image->num_images = format->output_planes; |
| |
| switch (format->texture_type) { |
| case EGL_TEXTURE_Y_XUXV_WL: |
| image->shader = &gr->texture_shader_y_xuxv; |
| break; |
| case EGL_TEXTURE_Y_UV_WL: |
| image->shader = &gr->texture_shader_y_uv; |
| break; |
| case EGL_TEXTURE_Y_U_V_WL: |
| image->shader = &gr->texture_shader_y_u_v; |
| break; |
| default: |
| assert(false); |
| } |
| |
| return true; |
| } |
| |
| static GLenum |
| choose_texture_target(struct dmabuf_attributes *attributes) |
| { |
| if (attributes->n_planes > 1) |
| return GL_TEXTURE_EXTERNAL_OES; |
| |
| switch (attributes->format & ~DRM_FORMAT_BIG_ENDIAN) { |
| case DRM_FORMAT_YUYV: |
| case DRM_FORMAT_YVYU: |
| case DRM_FORMAT_UYVY: |
| case DRM_FORMAT_VYUY: |
| case DRM_FORMAT_AYUV: |
| return GL_TEXTURE_EXTERNAL_OES; |
| default: |
| return GL_TEXTURE_2D; |
| } |
| } |
| |
| static struct dmabuf_image * |
| import_dmabuf(struct gl_renderer *gr, |
| struct linux_dmabuf_buffer *dmabuf) |
| { |
| struct egl_image *egl_image; |
| struct dmabuf_image *image; |
| |
| image = dmabuf_image_create(); |
| image->dmabuf = dmabuf; |
| |
| egl_image = import_simple_dmabuf(gr, &dmabuf->attributes); |
| if (egl_image) { |
| image->num_images = 1; |
| image->images[0] = egl_image; |
| image->import_type = IMPORT_TYPE_DIRECT; |
| image->target = choose_texture_target(&dmabuf->attributes); |
| |
| switch (image->target) { |
| case GL_TEXTURE_2D: |
| image->shader = &gr->texture_shader_rgba; |
| break; |
| default: |
| image->shader = &gr->texture_shader_egl_external; |
| } |
| } else { |
| if (!import_yuv_dmabuf(gr, image)) { |
| dmabuf_image_destroy(image); |
| return NULL; |
| } |
| image->import_type = IMPORT_TYPE_GL_CONVERSION; |
| image->target = GL_TEXTURE_2D; |
| } |
| |
| return image; |
| } |
| |
| static void |
| gl_renderer_query_dmabuf_formats(struct weston_compositor *wc, |
| int **formats, int *num_formats) |
| { |
| struct gl_renderer *gr = get_renderer(wc); |
| static const int fallback_formats[] = { |
| DRM_FORMAT_ARGB8888, |
| DRM_FORMAT_XRGB8888, |
| DRM_FORMAT_YUYV, |
| DRM_FORMAT_NV12, |
| DRM_FORMAT_YUV420, |
| DRM_FORMAT_YUV444, |
| }; |
| bool fallback = false; |
| EGLint num; |
| |
| assert(gr->has_dmabuf_import); |
| |
| if (!gr->has_dmabuf_import_modifiers || |
| !gr->query_dmabuf_formats(gr->egl_display, 0, NULL, &num)) { |
| num = gr->has_gl_texture_rg ? ARRAY_LENGTH(fallback_formats) : 2; |
| fallback = true; |
| } |
| |
| *formats = calloc(num, sizeof(int)); |
| if (*formats == NULL) { |
| *num_formats = 0; |
| return; |
| } |
| |
| if (fallback) { |
| memcpy(*formats, fallback_formats, num * sizeof(int)); |
| *num_formats = num; |
| return; |
| } |
| |
| if (!gr->query_dmabuf_formats(gr->egl_display, num, *formats, &num)) { |
| *num_formats = 0; |
| free(*formats); |
| return; |
| } |
| |
| *num_formats = num; |
| } |
| |
| static void |
| gl_renderer_query_dmabuf_modifiers(struct weston_compositor *wc, int format, |
| uint64_t **modifiers, |
| int *num_modifiers) |
| { |
| struct gl_renderer *gr = get_renderer(wc); |
| int num; |
| |
| assert(gr->has_dmabuf_import); |
| |
| if (!gr->has_dmabuf_import_modifiers || |
| !gr->query_dmabuf_modifiers(gr->egl_display, format, 0, NULL, |
| NULL, &num)) { |
| *num_modifiers = 0; |
| return; |
| } |
| |
| *modifiers = calloc(num, sizeof(uint64_t)); |
| if (*modifiers == NULL) { |
| *num_modifiers = 0; |
| return; |
| } |
| if (!gr->query_dmabuf_modifiers(gr->egl_display, format, |
| num, *modifiers, NULL, &num)) { |
| *num_modifiers = 0; |
| free(*modifiers); |
| return; |
| } |
| |
| *num_modifiers = num; |
| } |
| |
| static bool |
| gl_renderer_import_dmabuf(struct weston_compositor *ec, |
| struct linux_dmabuf_buffer *dmabuf) |
| { |
| struct gl_renderer *gr = get_renderer(ec); |
| struct dmabuf_image *image; |
| int i; |
| |
| assert(gr->has_dmabuf_import); |
| |
| for (i = 0; i < dmabuf->attributes.n_planes; i++) { |
| /* return if EGL doesn't support import modifiers */ |
| if (dmabuf->attributes.modifier[i] != DRM_FORMAT_MOD_INVALID) |
| if (!gr->has_dmabuf_import_modifiers) |
| return false; |
| |
| /* return if modifiers passed are unequal */ |
| if (dmabuf->attributes.modifier[i] != |
| dmabuf->attributes.modifier[0]) |
| return false; |
| } |
| |
| /* reject all flags we do not recognize or handle */ |
| if (dmabuf->attributes.flags & ~ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_Y_INVERT) |
| return false; |
| |
| image = import_dmabuf(gr, dmabuf); |
| if (!image) |
| return false; |
| |
| wl_list_insert(&gr->dmabuf_images, &image->link); |
| linux_dmabuf_buffer_set_user_data(dmabuf, image, |
| gl_renderer_destroy_dmabuf); |
| |
| return true; |
| } |
| |
| static bool |
| import_known_dmabuf(struct gl_renderer *gr, |
| struct dmabuf_image *image) |
| { |
| switch (image->import_type) { |
| case IMPORT_TYPE_DIRECT: |
| image->images[0] = import_simple_dmabuf(gr, &image->dmabuf->attributes); |
| if (!image->images[0]) |
| return false; |
| image->num_images = 1; |
| break; |
| |
| case IMPORT_TYPE_GL_CONVERSION: |
| if (!import_yuv_dmabuf(gr, image)) |
| return false; |
| break; |
| |
| default: |
| weston_log("Invalid import type for dmabuf\n"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static void |
| gl_renderer_attach_dmabuf(struct weston_surface *surface, |
| struct weston_buffer *buffer, |
| struct linux_dmabuf_buffer *dmabuf) |
| { |
| struct gl_renderer *gr = get_renderer(surface->compositor); |
| struct gl_surface_state *gs = get_surface_state(surface); |
| struct dmabuf_image *image; |
| int i; |
| int ret; |
| |
| if (!gr->has_dmabuf_import) { |
| linux_dmabuf_buffer_send_server_error(dmabuf, |
| "EGL dmabuf import not supported"); |
| return; |
| } |
| |
| buffer->width = dmabuf->attributes.width; |
| buffer->height = dmabuf->attributes.height; |
| |
| /* |
| * GL-renderer uses the OpenGL convention of texture coordinates, where |
| * the origin is at bottom-left. Because dmabuf buffers have the origin |
| * at top-left, we must invert the Y_INVERT flag to get the image right. |
| */ |
| buffer->y_inverted = |
| !(dmabuf->attributes.flags & ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_Y_INVERT); |
| |
| for (i = 0; i < gs->num_images; i++) |
| egl_image_unref(gs->images[i]); |
| gs->num_images = 0; |
| |
| /* |
| * We try to always hold an imported EGLImage from the dmabuf |
| * to prevent the client from preventing re-imports. But, we also |
| * need to re-import every time the contents may change because |
| * GL driver's caching may need flushing. |
| * |
| * Here we release the cache reference which has to be final. |
| */ |
| image = linux_dmabuf_buffer_get_user_data(dmabuf); |
| |
| /* The dmabuf_image should have been created during the import */ |
| assert(image != NULL); |
| |
| for (i = 0; i < image->num_images; ++i) { |
| ret = egl_image_unref(image->images[i]); |
| assert(ret == 0); |
| } |
| |
| if (!import_known_dmabuf(gr, image)) { |
| linux_dmabuf_buffer_send_server_error(dmabuf, "EGL dmabuf import failed"); |
| return; |
| } |
| |
| gs->num_images = image->num_images; |
| for (i = 0; i < gs->num_images; ++i) |
| gs->images[i] = egl_image_ref(image->images[i]); |
| |
| gs->target = image->target; |
| ensure_textures(gs, gs->num_images); |
| for (i = 0; i < gs->num_images; ++i) { |
| glActiveTexture(GL_TEXTURE0 + i); |
| glBindTexture(gs->target, gs->textures[i]); |
| gr->image_target_texture_2d(gs->target, gs->images[i]->image); |
| } |
| |
| gs->shader = image->shader; |
| gs->pitch = buffer->width; |
| gs->height = buffer->height; |
| gs->buffer_type = BUFFER_TYPE_EGL; |
| gs->y_inverted = buffer->y_inverted; |
| } |
| |
| static void |
| gl_renderer_attach(struct weston_surface *es, struct weston_buffer *buffer) |
| { |
| struct weston_compositor *ec = es->compositor; |
| struct gl_renderer *gr = get_renderer(ec); |
| struct gl_surface_state *gs = get_surface_state(es); |
| struct wl_shm_buffer *shm_buffer; |
| struct linux_dmabuf_buffer *dmabuf; |
| EGLint format; |
| int i; |
| |
| weston_buffer_reference(&gs->buffer_ref, buffer); |
| |
| if (!buffer) { |
| for (i = 0; i < gs->num_images; i++) { |
| egl_image_unref(gs->images[i]); |
| gs->images[i] = NULL; |
| } |
| gs->num_images = 0; |
| glDeleteTextures(gs->num_textures, gs->textures); |
| gs->num_textures = 0; |
| gs->buffer_type = BUFFER_TYPE_NULL; |
| gs->y_inverted = 1; |
| return; |
| } |
| |
| shm_buffer = wl_shm_buffer_get(buffer->resource); |
| |
| if (shm_buffer) |
| gl_renderer_attach_shm(es, buffer, shm_buffer); |
| else if (gr->has_bind_display && |
| gr->query_buffer(gr->egl_display, (void *)buffer->resource, |
| EGL_TEXTURE_FORMAT, &format)) |
| gl_renderer_attach_egl(es, buffer, format); |
| else if ((dmabuf = linux_dmabuf_buffer_get(buffer->resource))) |
| gl_renderer_attach_dmabuf(es, buffer, dmabuf); |
| else { |
| weston_log("unhandled buffer type!\n"); |
| weston_buffer_reference(&gs->buffer_ref, NULL); |
| gs->buffer_type = BUFFER_TYPE_NULL; |
| gs->y_inverted = 1; |
| } |
| } |
| |
| static void |
| gl_renderer_surface_set_color(struct weston_surface *surface, |
| float red, float green, float blue, float alpha) |
| { |
| struct gl_surface_state *gs = get_surface_state(surface); |
| struct gl_renderer *gr = get_renderer(surface->compositor); |
| |
| gs->color[0] = red; |
| gs->color[1] = green; |
| gs->color[2] = blue; |
| gs->color[3] = alpha; |
| gs->buffer_type = BUFFER_TYPE_SOLID; |
| gs->pitch = 1; |
| gs->height = 1; |
| |
| gs->shader = &gr->solid_shader; |
| } |
| |
| static void |
| gl_renderer_surface_get_content_size(struct weston_surface *surface, |
| int *width, int *height) |
| { |
| struct gl_surface_state *gs = get_surface_state(surface); |
| |
| if (gs->buffer_type == BUFFER_TYPE_NULL) { |
| *width = 0; |
| *height = 0; |
| } else { |
| *width = gs->pitch; |
| *height = gs->height; |
| } |
| } |
| |
| static uint32_t |
| pack_color(pixman_format_code_t format, float *c) |
| { |
| uint8_t r = round(c[0] * 255.0f); |
| uint8_t g = round(c[1] * 255.0f); |
| uint8_t b = round(c[2] * 255.0f); |
| uint8_t a = round(c[3] * 255.0f); |
| |
| switch (format) { |
| case PIXMAN_a8b8g8r8: |
| return (a << 24) | (b << 16) | (g << 8) | r; |
| default: |
| assert(0); |
| return 0; |
| } |
| } |
| |
| static int |
| gl_renderer_surface_copy_content(struct weston_surface *surface, |
| void *target, size_t size, |
| int src_x, int src_y, |
| int width, int height) |
| { |
| static const GLfloat verts[4 * 2] = { |
| 0.0f, 0.0f, |
| 1.0f, 0.0f, |
| 1.0f, 1.0f, |
| 0.0f, 1.0f |
| }; |
| static const GLfloat projmat_normal[16] = { /* transpose */ |
| 2.0f, 0.0f, 0.0f, 0.0f, |
| 0.0f, 2.0f, 0.0f, 0.0f, |
| 0.0f, 0.0f, 1.0f, 0.0f, |
| -1.0f, -1.0f, 0.0f, 1.0f |
| }; |
| static const GLfloat projmat_yinvert[16] = { /* transpose */ |
| 2.0f, 0.0f, 0.0f, 0.0f, |
| 0.0f, -2.0f, 0.0f, 0.0f, |
| 0.0f, 0.0f, 1.0f, 0.0f, |
| -1.0f, 1.0f, 0.0f, 1.0f |
| }; |
| const pixman_format_code_t format = PIXMAN_a8b8g8r8; |
| const size_t bytespp = 4; /* PIXMAN_a8b8g8r8 */ |
| const GLenum gl_format = GL_RGBA; /* PIXMAN_a8b8g8r8 little-endian */ |
| struct gl_renderer *gr = get_renderer(surface->compositor); |
| struct gl_surface_state *gs = get_surface_state(surface); |
| int cw, ch; |
| GLuint fbo; |
| GLuint tex; |
| GLenum status; |
| const GLfloat *proj; |
| int i; |
| |
| gl_renderer_surface_get_content_size(surface, &cw, &ch); |
| |
| switch (gs->buffer_type) { |
| case BUFFER_TYPE_NULL: |
| return -1; |
| case BUFFER_TYPE_SOLID: |
| *(uint32_t *)target = pack_color(format, gs->color); |
| return 0; |
| case BUFFER_TYPE_SHM: |
| gl_renderer_flush_damage(surface); |
| /* fall through */ |
| case BUFFER_TYPE_EGL: |
| break; |
| } |
| |
| glGenTextures(1, &tex); |
| glBindTexture(GL_TEXTURE_2D, tex); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, cw, ch, |
| 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); |
| glBindTexture(GL_TEXTURE_2D, 0); |
| |
| glGenFramebuffers(1, &fbo); |
| glBindFramebuffer(GL_FRAMEBUFFER, fbo); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, |
| GL_TEXTURE_2D, tex, 0); |
| |
| status = glCheckFramebufferStatus(GL_FRAMEBUFFER); |
| if (status != GL_FRAMEBUFFER_COMPLETE) { |
| weston_log("%s: fbo error: %#x\n", __func__, status); |
| glDeleteFramebuffers(1, &fbo); |
| glDeleteTextures(1, &tex); |
| return -1; |
| } |
| |
| glViewport(0, 0, cw, ch); |
| glDisable(GL_BLEND); |
| use_shader(gr, gs->shader); |
| if (gs->y_inverted) |
| proj = projmat_normal; |
| else |
| proj = projmat_yinvert; |
| |
| glUniformMatrix4fv(gs->shader->proj_uniform, 1, GL_FALSE, proj); |
| glUniform1f(gs->shader->alpha_uniform, 1.0f); |
| |
| for (i = 0; i < gs->num_textures; i++) { |
| glUniform1i(gs->shader->tex_uniforms[i], i); |
| |
| glActiveTexture(GL_TEXTURE0 + i); |
| glBindTexture(gs->target, gs->textures[i]); |
| glTexParameteri(gs->target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| glTexParameteri(gs->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| } |
| |
| /* position: */ |
| glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, verts); |
| glEnableVertexAttribArray(0); |
| |
| /* texcoord: */ |
| glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, verts); |
| glEnableVertexAttribArray(1); |
| |
| glDrawArrays(GL_TRIANGLE_FAN, 0, 4); |
| |
| glDisableVertexAttribArray(1); |
| glDisableVertexAttribArray(0); |
| |
| glPixelStorei(GL_PACK_ALIGNMENT, bytespp); |
| glReadPixels(src_x, src_y, width, height, gl_format, |
| GL_UNSIGNED_BYTE, target); |
| |
| glDeleteFramebuffers(1, &fbo); |
| glDeleteTextures(1, &tex); |
| |
| return 0; |
| } |
| |
| static void |
| surface_state_destroy(struct gl_surface_state *gs, struct gl_renderer *gr) |
| { |
| int i; |
| |
| wl_list_remove(&gs->surface_destroy_listener.link); |
| wl_list_remove(&gs->renderer_destroy_listener.link); |
| |
| gs->surface->renderer_state = NULL; |
| |
| glDeleteTextures(gs->num_textures, gs->textures); |
| |
| for (i = 0; i < gs->num_images; i++) |
| egl_image_unref(gs->images[i]); |
| |
| weston_buffer_reference(&gs->buffer_ref, NULL); |
| pixman_region32_fini(&gs->texture_damage); |
| free(gs); |
| } |
| |
| static void |
| surface_state_handle_surface_destroy(struct wl_listener *listener, void *data) |
| { |
| struct gl_surface_state *gs; |
| struct gl_renderer *gr; |
| |
| gs = container_of(listener, struct gl_surface_state, |
| surface_destroy_listener); |
| |
| gr = get_renderer(gs->surface->compositor); |
| |
| surface_state_destroy(gs, gr); |
| } |
| |
| static void |
| surface_state_handle_renderer_destroy(struct wl_listener *listener, void *data) |
| { |
| struct gl_surface_state *gs; |
| struct gl_renderer *gr; |
| |
| gr = data; |
| |
| gs = container_of(listener, struct gl_surface_state, |
| renderer_destroy_listener); |
| |
| surface_state_destroy(gs, gr); |
| } |
| |
| static int |
| gl_renderer_create_surface(struct weston_surface *surface) |
| { |
| struct gl_surface_state *gs; |
| struct gl_renderer *gr = get_renderer(surface->compositor); |
| |
| gs = zalloc(sizeof *gs); |
| if (gs == NULL) |
| return -1; |
| |
| /* A buffer is never attached to solid color surfaces, yet |
| * they still go through texcoord computations. Do not divide |
| * by zero there. |
| */ |
| gs->pitch = 1; |
| gs->y_inverted = 1; |
| |
| gs->surface = surface; |
| |
| pixman_region32_init(&gs->texture_damage); |
| surface->renderer_state = gs; |
| |
| gs->surface_destroy_listener.notify = |
| surface_state_handle_surface_destroy; |
| wl_signal_add(&surface->destroy_signal, |
| &gs->surface_destroy_listener); |
| |
| gs->renderer_destroy_listener.notify = |
| surface_state_handle_renderer_destroy; |
| wl_signal_add(&gr->destroy_signal, |
| &gs->renderer_destroy_listener); |
| |
| if (surface->buffer_ref.buffer) { |
| gl_renderer_attach(surface, surface->buffer_ref.buffer); |
| gl_renderer_flush_damage(surface); |
| } |
| |
| return 0; |
| } |
| |
| static const char vertex_shader[] = |
| "uniform mat4 proj;\n" |
| "attribute vec2 position;\n" |
| "attribute vec2 texcoord;\n" |
| "varying vec2 v_texcoord;\n" |
| "void main()\n" |
| "{\n" |
| " gl_Position = proj * vec4(position, 0.0, 1.0);\n" |
| " v_texcoord = texcoord;\n" |
| "}\n"; |
| |
| /* Declare common fragment shader uniforms */ |
| #define FRAGMENT_CONVERT_YUV \ |
| " y *= alpha;\n" \ |
| " u *= alpha;\n" \ |
| " v *= alpha;\n" \ |
| " gl_FragColor.r = y + 1.59602678 * v;\n" \ |
| " gl_FragColor.g = y - 0.39176229 * u - 0.81296764 * v;\n" \ |
| " gl_FragColor.b = y + 2.01723214 * u;\n" \ |
| " gl_FragColor.a = alpha;\n" |
| |
| static const char fragment_debug[] = |
| " gl_FragColor = vec4(0.0, 0.3, 0.0, 0.2) + gl_FragColor * 0.8;\n"; |
| |
| static const char fragment_brace[] = |
| "}\n"; |
| |
| static const char texture_fragment_shader_rgba[] = |
| "precision mediump float;\n" |
| "varying vec2 v_texcoord;\n" |
| "uniform sampler2D tex;\n" |
| "uniform float alpha;\n" |
| "void main()\n" |
| "{\n" |
| " gl_FragColor = alpha * texture2D(tex, v_texcoord)\n;" |
| ; |
| |
| static const char texture_fragment_shader_rgbx[] = |
| "precision mediump float;\n" |
| "varying vec2 v_texcoord;\n" |
| "uniform sampler2D tex;\n" |
| "uniform float alpha;\n" |
| "void main()\n" |
| "{\n" |
| " gl_FragColor.rgb = alpha * texture2D(tex, v_texcoord).rgb\n;" |
| " gl_FragColor.a = alpha;\n" |
| ; |
| |
| static const char texture_fragment_shader_egl_external[] = |
| "#extension GL_OES_EGL_image_external : require\n" |
| "precision mediump float;\n" |
| "varying vec2 v_texcoord;\n" |
| "uniform samplerExternalOES tex;\n" |
| "uniform float alpha;\n" |
| "void main()\n" |
| "{\n" |
| " gl_FragColor = alpha * texture2D(tex, v_texcoord)\n;" |
| ; |
| |
| static const char texture_fragment_shader_y_uv[] = |
| "precision mediump float;\n" |
| "uniform sampler2D tex;\n" |
| "uniform sampler2D tex1;\n" |
| "varying vec2 v_texcoord;\n" |
| "uniform float alpha;\n" |
| "void main() {\n" |
| " float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
| " float u = texture2D(tex1, v_texcoord).r - 0.5;\n" |
| " float v = texture2D(tex1, v_texcoord).g - 0.5;\n" |
| FRAGMENT_CONVERT_YUV |
| ; |
| |
| static const char texture_fragment_shader_y_u_v[] = |
| "precision mediump float;\n" |
| "uniform sampler2D tex;\n" |
| "uniform sampler2D tex1;\n" |
| "uniform sampler2D tex2;\n" |
| "varying vec2 v_texcoord;\n" |
| "uniform float alpha;\n" |
| "void main() {\n" |
| " float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
| " float u = texture2D(tex1, v_texcoord).x - 0.5;\n" |
| " float v = texture2D(tex2, v_texcoord).x - 0.5;\n" |
| FRAGMENT_CONVERT_YUV |
| ; |
| |
| static const char texture_fragment_shader_y_xuxv[] = |
| "precision mediump float;\n" |
| "uniform sampler2D tex;\n" |
| "uniform sampler2D tex1;\n" |
| "varying vec2 v_texcoord;\n" |
| "uniform float alpha;\n" |
| "void main() {\n" |
| " float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
| " float u = texture2D(tex1, v_texcoord).g - 0.5;\n" |
| " float v = texture2D(tex1, v_texcoord).a - 0.5;\n" |
| FRAGMENT_CONVERT_YUV |
| ; |
| |
| static const char solid_fragment_shader[] = |
| "precision mediump float;\n" |
| "uniform vec4 color;\n" |
| "uniform float alpha;\n" |
| "void main()\n" |
| "{\n" |
| " gl_FragColor = alpha * color\n;" |
| ; |
| |
| static int |
| compile_shader(GLenum type, int count, const char **sources) |
| { |
| GLuint s; |
| char msg[512]; |
| GLint status; |
| |
| s = glCreateShader(type); |
| glShaderSource(s, count, sources, NULL); |
| glCompileShader(s); |
| glGetShaderiv(s, GL_COMPILE_STATUS, &status); |
| if (!status) { |
| glGetShaderInfoLog(s, sizeof msg, NULL, msg); |
| weston_log("shader info: %s\n", msg); |
| return GL_NONE; |
| } |
| |
| return s; |
| } |
| |
| static int |
| shader_init(struct gl_shader *shader, struct gl_renderer *renderer, |
| const char *vertex_source, const char *fragment_source) |
| { |
| char msg[512]; |
| GLint status; |
| int count; |
| const char *sources[3]; |
| |
| shader->vertex_shader = |
| compile_shader(GL_VERTEX_SHADER, 1, &vertex_source); |
| |
| if (renderer->fragment_shader_debug) { |
| sources[0] = fragment_source; |
| sources[1] = fragment_debug; |
| sources[2] = fragment_brace; |
| count = 3; |
| } else { |
| sources[0] = fragment_source; |
| sources[1] = fragment_brace; |
| count = 2; |
| } |
| |
| shader->fragment_shader = |
| compile_shader(GL_FRAGMENT_SHADER, count, sources); |
| |
| shader->program = glCreateProgram(); |
| glAttachShader(shader->program, shader->vertex_shader); |
| glAttachShader(shader->program, shader->fragment_shader); |
| glBindAttribLocation(shader->program, 0, "position"); |
| glBindAttribLocation(shader->program, 1, "texcoord"); |
| |
| glLinkProgram(shader->program); |
| glGetProgramiv(shader->program, GL_LINK_STATUS, &status); |
| if (!status) { |
| glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg); |
| weston_log("link info: %s\n", msg); |
| return -1; |
| } |
| |
| shader->proj_uniform = glGetUniformLocation(shader->program, "proj"); |
| shader->tex_uniforms[0] = glGetUniformLocation(shader->program, "tex"); |
| shader->tex_uniforms[1] = glGetUniformLocation(shader->program, "tex1"); |
| shader->tex_uniforms[2] = glGetUniformLocation(shader->program, "tex2"); |
| shader->alpha_uniform = glGetUniformLocation(shader->program, "alpha"); |
| shader->color_uniform = glGetUniformLocation(shader->program, "color"); |
| |
| return 0; |
| } |
| |
| static void |
| shader_release(struct gl_shader *shader) |
| { |
| glDeleteShader(shader->vertex_shader); |
| glDeleteShader(shader->fragment_shader); |
| glDeleteProgram(shader->program); |
| |
| shader->vertex_shader = 0; |
| shader->fragment_shader = 0; |
| shader->program = 0; |
| } |
| |
| static void |
| log_extensions(const char *name, const char *extensions) |
| { |
| const char *p, *end; |
| int l; |
| int len; |
| |
| l = weston_log("%s:", name); |
| p = extensions; |
| while (*p) { |
| end = strchrnul(p, ' '); |
| len = end - p; |
| if (l + len > 78) |
| l = weston_log_continue("\n" STAMP_SPACE "%.*s", |
| len, p); |
| else |
| l += weston_log_continue(" %.*s", len, p); |
| for (p = end; isspace(*p); p++) |
| ; |
| } |
| weston_log_continue("\n"); |
| } |
| |
| static void |
| log_egl_gl_info(EGLDisplay egldpy) |
| { |
| const char *str; |
| |
| str = eglQueryString(egldpy, EGL_VERSION); |
| weston_log("EGL version: %s\n", str ? str : "(null)"); |
| |
| str = eglQueryString(egldpy, EGL_VENDOR); |
| weston_log("EGL vendor: %s\n", str ? str : "(null)"); |
| |
| str = eglQueryString(egldpy, EGL_CLIENT_APIS); |
| weston_log("EGL client APIs: %s\n", str ? str : "(null)"); |
| |
| str = eglQueryString(egldpy, EGL_EXTENSIONS); |
| log_extensions("EGL extensions", str ? str : "(null)"); |
| |
| str = (char *)glGetString(GL_VERSION); |
| weston_log("GL version: %s\n", str ? str : "(null)"); |
| |
| str = (char *)glGetString(GL_SHADING_LANGUAGE_VERSION); |
| weston_log("GLSL version: %s\n", str ? str : "(null)"); |
| |
| str = (char *)glGetString(GL_VENDOR); |
| weston_log("GL vendor: %s\n", str ? str : "(null)"); |
| |
| str = (char *)glGetString(GL_RENDERER); |
| weston_log("GL renderer: %s\n", str ? str : "(null)"); |
| |
| str = (char *)glGetString(GL_EXTENSIONS); |
| log_extensions("GL extensions", str ? str : "(null)"); |
| } |
| |
| static void |
| log_egl_config_info(EGLDisplay egldpy, EGLConfig eglconfig) |
| { |
| EGLint r, g, b, a; |
| |
| weston_log("Chosen EGL config details:\n"); |
| |
| weston_log_continue(STAMP_SPACE "RGBA bits"); |
| if (eglGetConfigAttrib(egldpy, eglconfig, EGL_RED_SIZE, &r) && |
| eglGetConfigAttrib(egldpy, eglconfig, EGL_GREEN_SIZE, &g) && |
| eglGetConfigAttrib(egldpy, eglconfig, EGL_BLUE_SIZE, &b) && |
| eglGetConfigAttrib(egldpy, eglconfig, EGL_ALPHA_SIZE, &a)) |
| weston_log_continue(": %d %d %d %d\n", r, g, b, a); |
| else |
| weston_log_continue(" unknown\n"); |
| |
| weston_log_continue(STAMP_SPACE "swap interval range"); |
| if (eglGetConfigAttrib(egldpy, eglconfig, EGL_MIN_SWAP_INTERVAL, &a) && |
| eglGetConfigAttrib(egldpy, eglconfig, EGL_MAX_SWAP_INTERVAL, &b)) |
| weston_log_continue(": %d - %d\n", a, b); |
| else |
| weston_log_continue(" unknown\n"); |
| } |
| |
| static int |
| match_config_to_visual(EGLDisplay egl_display, |
| EGLint visual_id, |
| EGLConfig *configs, |
| int count) |
| { |
| int i; |
| |
| for (i = 0; i < count; ++i) { |
| EGLint id; |
| |
| if (!eglGetConfigAttrib(egl_display, |
| configs[i], EGL_NATIVE_VISUAL_ID, |
| &id)) |
| continue; |
| |
| if (id == visual_id) |
| return i; |
| } |
| |
| return -1; |
| } |
| |
| static int |
| egl_choose_config(struct gl_renderer *gr, const EGLint *attribs, |
| const EGLint *visual_id, const int n_ids, |
| EGLConfig *config_out) |
| { |
| EGLint count = 0; |
| EGLint matched = 0; |
| EGLConfig *configs; |
| int i, config_index = -1; |
| |
| if (!eglGetConfigs(gr->egl_display, NULL, 0, &count) || count < 1) { |
| weston_log("No EGL configs to choose from.\n"); |
| return -1; |
| } |
| configs = calloc(count, sizeof *configs); |
| if (!configs) |
| return -1; |
| |
| if (!eglChooseConfig(gr->egl_display, attribs, configs, |
| count, &matched) || !matched) { |
| weston_log("No EGL configs with appropriate attributes.\n"); |
| goto out; |
| } |
| |
| if (!visual_id || n_ids == 0) |
| config_index = 0; |
| |
| for (i = 0; config_index == -1 && i < n_ids; i++) |
| config_index = match_config_to_visual(gr->egl_display, |
| visual_id[i], |
| configs, |
| matched); |
| |
| if (config_index != -1) |
| *config_out = configs[config_index]; |
| |
| out: |
| free(configs); |
| if (config_index == -1) |
| return -1; |
| |
| if (i > 1) |
| weston_log("Unable to use first choice EGL config with id" |
| " 0x%x, succeeded with alternate id 0x%x.\n", |
| visual_id[0], visual_id[i - 1]); |
| return 0; |
| } |
| |
| static void |
| gl_renderer_output_set_border(struct weston_output *output, |
| enum gl_renderer_border_side side, |
| int32_t width, int32_t height, |
| int32_t tex_width, unsigned char *data) |
| { |
| struct gl_output_state *go = get_output_state(output); |
| |
| if (go->borders[side].width != width || |
| go->borders[side].height != height) |
| /* In this case, we have to blow everything and do a full |
| |