From 2aafb5dd19f8a3e3436f8843071fa2076a6d2716 Mon Sep 17 00:00:00 2001 From: Drew DeVault Date: Thu, 22 Jun 2017 16:32:47 -0400 Subject: [PATCH] Add wlcore/wl_shm (WIP) --- CMakeLists.txt | 1 + example/CMakeLists.txt | 13 ++++++ example/compositor.c | 43 +++++++++++++++++++ example/shared.h | 1 - include/endian.h | 8 ++++ include/wlr/render.h | 5 +++ include/wlr/render/interface.h | 8 ++-- include/wlr/wlcore/wl_shm.h | 13 ++++++ render/gles2/renderer.c | 12 ++++++ render/wlr_renderer.c | 5 +++ wlcore/CMakeLists.txt | 3 ++ wlcore/wl_shm.c | 78 ++++++++++++++++++++++++++++++++++ 12 files changed, 186 insertions(+), 4 deletions(-) create mode 100644 example/compositor.c create mode 100644 include/endian.h create mode 100644 include/wlr/wlcore/wl_shm.h create mode 100644 wlcore/CMakeLists.txt create mode 100644 wlcore/wl_shm.c diff --git a/CMakeLists.txt b/CMakeLists.txt index ae2397b2..571b7b61 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -61,6 +61,7 @@ add_subdirectory(backend) add_subdirectory(types) add_subdirectory(session) add_subdirectory(render) +add_subdirectory(wlcore) add_subdirectory(util) add_subdirectory(example) diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt index fff2e49b..6c53e923 100644 --- a/example/CMakeLists.txt +++ b/example/CMakeLists.txt @@ -65,3 +65,16 @@ target_link_libraries(tablet wlr-render ${XKBCOMMON_LIBRARIES} ) + +add_executable(compositor + compositor + shared.c +) + +target_link_libraries(compositor + wlr-backend + wlr-session + wlr-render + wlr-wlcore + ${XKBCOMMON_LIBRARIES} +) diff --git a/example/compositor.c b/example/compositor.c new file mode 100644 index 00000000..5106ec96 --- /dev/null +++ b/example/compositor.c @@ -0,0 +1,43 @@ +#define _POSIX_C_SOURCE 199309L +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "shared.h" + +struct sample_state { + struct wlr_renderer *renderer; +}; + +void handle_output_frame(struct output_state *output, struct timespec *ts) { + struct compositor_state *state = output->compositor; + struct sample_state *sample = state->data; + struct wlr_output *wlr_output = output->output; + + wlr_renderer_begin(sample->renderer, wlr_output); + // TODO: render surfaces + wlr_renderer_end(sample->renderer); +} + +int main() { + struct sample_state state = { 0 }; + struct compositor_state compositor = { 0, + .data = &state, + .output_frame_cb = handle_output_frame, + }; + compositor_init(&compositor); + + state.renderer = wlr_gles2_renderer_init(); + wlr_wl_shm_init(compositor.display); + + compositor_run(&compositor); +} diff --git a/example/shared.h b/example/shared.h index 37f52dcc..1633f2c8 100644 --- a/example/shared.h +++ b/example/shared.h @@ -126,7 +126,6 @@ struct compositor_state { struct wl_listener output_remove; struct wl_list outputs; - bool exit; void *data; }; diff --git a/include/endian.h b/include/endian.h new file mode 100644 index 00000000..0e9b6101 --- /dev/null +++ b/include/endian.h @@ -0,0 +1,8 @@ +#ifndef _WLR_ENDIAN_H +#define _WLR_ENDIAN_H + +// https://stackoverflow.com/a/4240257 + +#define little_endian() (((union { unsigned x; unsigned char c; }){1}).c) + +#endif diff --git a/include/wlr/render.h b/include/wlr/render.h index 90967dd9..496e3638 100644 --- a/include/wlr/render.h +++ b/include/wlr/render.h @@ -38,6 +38,11 @@ void wlr_render_colored_quad(struct wlr_renderer *r, */ void wlr_render_colored_ellipse(struct wlr_renderer *r, const float (*color)[4], const float (*matrix)[16]); +/** + * Returns a list of pixel formats supported by this renderer. + */ +const enum wl_shm_format *wlr_renderer_get_formats( + struct wlr_renderer *r, size_t *len); /** * Destroys this wlr_renderer. Surfaces must be destroyed separately. */ diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h index 222b0c4d..c7fa54d6 100644 --- a/include/wlr/render/interface.h +++ b/include/wlr/render/interface.h @@ -20,9 +20,11 @@ struct wlr_renderer_impl { bool (*render_with_matrix)(struct wlr_renderer_state *state, struct wlr_surface *surface, const float (*matrix)[16]); void (*render_quad)(struct wlr_renderer_state *state, - const float (*color)[4], const float (*matrix)[16]); + const float (*color)[4], const float (*matrix)[16]); void (*render_ellipse)(struct wlr_renderer_state *state, - const float (*color)[4], const float (*matrix)[16]); + const float (*color)[4], const float (*matrix)[16]); + const enum wl_shm_format *(*formats)( + struct wlr_renderer_state *state, size_t *len); void (*destroy)(struct wlr_renderer_state *state); }; @@ -36,7 +38,7 @@ struct wlr_surface_impl { struct wl_shm_buffer *shm); // TODO: egl void (*get_matrix)(struct wlr_surface_state *state, - float (*matrix)[16], const float (*projection)[16], int x, int y); + float (*matrix)[16], const float (*projection)[16], int x, int y); void (*bind)(struct wlr_surface_state *state); void (*destroy)(struct wlr_surface_state *state); }; diff --git a/include/wlr/wlcore/wl_shm.h b/include/wlr/wlcore/wl_shm.h new file mode 100644 index 00000000..12c2ef78 --- /dev/null +++ b/include/wlr/wlcore/wl_shm.h @@ -0,0 +1,13 @@ +#ifndef _WLR_WLCORE_WL_SHM_H +#define _WLR_WLCORE_WL_SHM_H +#include +#include + +struct wlr_wl_shm; + +struct wlr_wl_shm *wlr_wl_shm_init(struct wl_display *display); +void wlr_wl_shm_add_format(struct wlr_wl_shm *shm, enum wl_shm_format format); +void wlr_wl_shm_add_renderer_formats( + struct wlr_wl_shm *shm, struct wlr_renderer *renderer); + +#endif diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index 623f378e..f3906125 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -129,6 +129,7 @@ static void draw_quad() { static bool wlr_gles2_render_surface(struct wlr_renderer_state *state, struct wlr_surface *surface, const float (*matrix)[16]) { assert(surface && surface->valid); + // TODO: Convert GL formats to WL_SHM formats switch (surface->format) { case GL_RGB: GL_CALL(glUseProgram(shaders.rgb)); @@ -163,6 +164,16 @@ static void wlr_gles2_render_ellipse(struct wlr_renderer_state *state, draw_quad(); } +static const enum wl_shm_format *wlr_gles2_formats( + struct wlr_renderer_state *state, size_t *len) { + static enum wl_shm_format formats[] = { + WL_SHM_FORMAT_ARGB8888, + WL_SHM_FORMAT_XRGB8888, + }; + *len = sizeof(formats) / sizeof(formats[0]); + return formats; +} + static void wlr_gles2_destroy(struct wlr_renderer_state *state) { // no-op } @@ -174,6 +185,7 @@ static struct wlr_renderer_impl wlr_renderer_impl = { .render_with_matrix = wlr_gles2_render_surface, .render_quad = wlr_gles2_render_quad, .render_ellipse = wlr_gles2_render_ellipse, + .formats = wlr_gles2_formats, .destroy = wlr_gles2_destroy }; diff --git a/render/wlr_renderer.c b/render/wlr_renderer.c index f48bb3eb..720c5254 100644 --- a/render/wlr_renderer.c +++ b/render/wlr_renderer.c @@ -41,3 +41,8 @@ void wlr_render_colored_ellipse(struct wlr_renderer *r, const float (*color)[4], const float (*matrix)[16]) { r->impl->render_ellipse(r->state, color, matrix); } + +const enum wl_shm_format *wlr_renderer_get_formats( + struct wlr_renderer *r, size_t *len) { + return r->impl->formats(r->state, len); +} diff --git a/wlcore/CMakeLists.txt b/wlcore/CMakeLists.txt new file mode 100644 index 00000000..cf6233c1 --- /dev/null +++ b/wlcore/CMakeLists.txt @@ -0,0 +1,3 @@ +add_library(wlr-wlcore STATIC + wl_shm.c +) diff --git a/wlcore/wl_shm.c b/wlcore/wl_shm.c new file mode 100644 index 00000000..824b3620 --- /dev/null +++ b/wlcore/wl_shm.c @@ -0,0 +1,78 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +struct wlr_wl_shm { + struct wl_global *wl_global; + struct wl_list resources; + struct wl_list pools; + list_t *formats; +}; + +static void wl_shm_destroy(struct wl_resource *resource) { + struct wlr_wl_shm *shm = wl_resource_get_user_data(resource); + struct wl_resource *_resource = NULL; + wl_resource_for_each(_resource, &shm->resources) { + if (_resource == resource) { + struct wl_list *link = wl_resource_get_link(_resource); + wl_list_remove(link); + break; + } + } +} + +struct wl_shm_interface wl_shm_impl = { + //.create_pool = wl_shm_create_pool +}; + +static void wl_shm_bind(struct wl_client *wl_client, void *_wlr_wl_shm, + uint32_t version, uint32_t id) { + struct wlr_wl_shm *wlr_shm = _wlr_wl_shm; + assert(wl_client && wlr_shm); + if (version > 1) { + wlr_log(L_ERROR, "Client requested unsupported wl_shm version, disconnecting"); + wl_client_destroy(wl_client); + return; + } + struct wl_resource *wl_resource = wl_resource_create( + wl_client, &wl_shm_interface, version, id); + wl_resource_set_implementation(wl_resource, &wl_shm_impl, + wlr_shm, wl_shm_destroy); + wl_list_insert(&wlr_shm->resources, wl_resource_get_link(wl_resource)); + for (size_t i = 0; i < wlr_shm->formats->length; ++i) { + uint32_t *f = wlr_shm->formats->items[i]; + wl_shm_send_format(wl_resource, *f); + } +} + +struct wlr_wl_shm *wlr_wl_shm_init(struct wl_display *display) { + struct wlr_wl_shm *shm = calloc(1, sizeof(struct wlr_wl_shm)); + wl_list_init(&shm->resources); + wl_list_init(&shm->pools); + shm->formats = list_create(); + shm->wl_global = wl_global_create(display, &wl_shm_interface, 1, + shm, wl_shm_bind); + return shm; +} + +void wlr_wl_shm_add_format(struct wlr_wl_shm *shm, enum wl_shm_format format) { + assert(shm); + uint32_t *f = calloc(1, sizeof(uint32_t)); + *f = format; + list_add(shm->formats, f); +} + +void wlr_wl_shm_add_renderer_formats(struct wlr_wl_shm *shm, + struct wlr_renderer *renderer) { + assert(shm && renderer); + size_t len; + const enum wl_shm_format *formats = wlr_renderer_get_formats(renderer, &len); + for (size_t i = 0; i < len; ++i) { + wlr_wl_shm_add_format(shm, formats[i]); + } +}