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Merge pull request #1350 from emersion/check-gles2-bgra-ext

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render/gles2: remove assumptions about supported formats
This commit is contained in:
Drew DeVault 2018-11-04 14:30:16 +01:00 committed by GitHub
commit cb503973ce
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 160 additions and 25 deletions
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11
backend/drm/renderer.c
View file

@ -30,8 +30,17 @@ bool init_drm_renderer(struct wlr_drm_backend *drm,
create_renderer_func = wlr_renderer_autocreate;
}
static EGLint config_attribs[] = {
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, 1,
EGL_NONE,
};
renderer->wlr_rend = create_renderer_func(&renderer->egl,
EGL_PLATFORM_GBM_MESA, renderer->gbm, NULL, GBM_FORMAT_ARGB8888);
EGL_PLATFORM_GBM_MESA, renderer->gbm,
config_attribs, GBM_FORMAT_ARGB8888);
if (!renderer->wlr_rend) {
wlr_log(WLR_ERROR, "Failed to create EGL/WLR renderer");

10
include/render/gles2.h
View file

@ -39,6 +39,12 @@ struct wlr_gles2_renderer {
struct wlr_egl *egl;
const char *exts_str;
struct {
bool read_format_bgra_ext;
bool debug_khr;
bool egl_image_external_oes;
} exts;
struct {
struct {
GLuint program;
@ -87,7 +93,9 @@ struct wlr_gles2_texture {
const struct wlr_gles2_pixel_format *get_gles2_format_from_wl(
enum wl_shm_format fmt);
const enum wl_shm_format *get_gles2_formats(size_t *len);
const struct wlr_gles2_pixel_format *get_gles2_format_from_gl(
GLint gl_format, GLint gl_type, bool alpha);
const enum wl_shm_format *get_gles2_wl_formats(size_t *len);
struct wlr_gles2_texture *gles2_get_texture(
struct wlr_texture *wlr_texture);

5
include/wlr/render/interface.h
View file

@ -34,6 +34,8 @@ struct wlr_renderer_impl {
const float color[static 4], const float matrix[static 9]);
const enum wl_shm_format *(*formats)(
struct wlr_renderer *renderer, size_t *len);
bool (*format_supported)(struct wlr_renderer *renderer,
enum wl_shm_format fmt);
bool (*resource_is_wl_drm_buffer)(struct wlr_renderer *renderer,
struct wl_resource *resource);
void (*wl_drm_buffer_get_size)(struct wlr_renderer *renderer,
@ -41,12 +43,11 @@ struct wlr_renderer_impl {
int (*get_dmabuf_formats)(struct wlr_renderer *renderer, int **formats);
int (*get_dmabuf_modifiers)(struct wlr_renderer *renderer, int format,
uint64_t **modifiers);
enum wl_shm_format (*preferred_read_format)(struct wlr_renderer *renderer);
bool (*read_pixels)(struct wlr_renderer *renderer, enum wl_shm_format fmt,
uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height,
uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,
void *data);
bool (*format_supported)(struct wlr_renderer *renderer,
enum wl_shm_format fmt);
struct wlr_texture *(*texture_from_pixels)(struct wlr_renderer *renderer,
enum wl_shm_format fmt, uint32_t stride, uint32_t width,
uint32_t height, const void *data);

5
include/wlr/render/wlr_renderer.h
View file

@ -96,6 +96,11 @@ int wlr_renderer_get_dmabuf_formats(struct wlr_renderer *renderer,
*/
int wlr_renderer_get_dmabuf_modifiers(struct wlr_renderer *renderer, int format,
uint64_t **modifiers);
/**
* Get the preferred format for reading pixels.
*/
bool wlr_renderer_preferred_read_format(struct wlr_renderer *renderer,
enum wl_shm_format *fmt);
/**
* Reads out of pixels of the currently bound surface into data. `stride` is in
* bytes.

20
render/gles2/pixel_format.c
View file

@ -3,9 +3,9 @@
#include "render/gles2.h"
/*
* The wayland formats are little endian while the GL formats are big endian,
* so WL_SHM_FORMAT_ARGB8888 is actually compatible with GL_BGRA_EXT.
*/
* The wayland formats are little endian while the GL formats are big endian,
* so WL_SHM_FORMAT_ARGB8888 is actually compatible with GL_BGRA_EXT.
*/
static const struct wlr_gles2_pixel_format formats[] = {
{
.wl_format = WL_SHM_FORMAT_ARGB8888,
@ -60,7 +60,19 @@ const struct wlr_gles2_pixel_format *get_gles2_format_from_wl(
return NULL;
}
const enum wl_shm_format *get_gles2_formats(size_t *len) {
const struct wlr_gles2_pixel_format *get_gles2_format_from_gl(
GLint gl_format, GLint gl_type, bool alpha) {
for (size_t i = 0; i < sizeof(formats) / sizeof(*formats); ++i) {
if (formats[i].gl_format == gl_format &&
formats[i].gl_type == gl_type &&
formats[i].has_alpha == alpha) {
return &formats[i];
}
}
return NULL;
}
const enum wl_shm_format *get_gles2_wl_formats(size_t *len) {
*len = sizeof(wl_formats) / sizeof(wl_formats[0]);
return wl_formats;
}

105
render/gles2/renderer.c
View file

@ -135,6 +135,12 @@ static bool gles2_render_texture_with_matrix(struct wlr_renderer *wlr_renderer,
case WLR_GLES2_TEXTURE_DMABUF:
shader = &renderer->shaders.tex_ext;
target = GL_TEXTURE_EXTERNAL_OES;
if (!renderer->exts.egl_image_external_oes) {
wlr_log(WLR_ERROR, "Failed to render texture: "
"GL_TEXTURE_EXTERNAL_OES not supported");
return false;
}
break;
}
@ -207,13 +213,17 @@ static void gles2_render_ellipse_with_matrix(struct wlr_renderer *wlr_renderer,
static const enum wl_shm_format *gles2_renderer_formats(
struct wlr_renderer *wlr_renderer, size_t *len) {
return get_gles2_formats(len);
return get_gles2_wl_formats(len);
}
static bool gles2_format_supported(struct wlr_renderer *wlr_renderer,
enum wl_shm_format wl_fmt) {
return get_gles2_format_from_wl(wl_fmt) != NULL;
}
static bool gles2_resource_is_wl_drm_buffer(struct wlr_renderer *wlr_renderer,
struct wl_resource *resource) {
struct wlr_gles2_renderer *renderer =
gles2_get_renderer(wlr_renderer);
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
if (!eglQueryWaylandBufferWL) {
return false;
@ -249,6 +259,33 @@ static int gles2_get_dmabuf_modifiers(struct wlr_renderer *wlr_renderer,
return wlr_egl_get_dmabuf_modifiers(renderer->egl, format, modifiers);
}
static enum wl_shm_format gles2_preferred_read_format(
struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer =
gles2_get_renderer_in_context(wlr_renderer);
GLint gl_format = -1, gl_type = -1;
PUSH_GLES2_DEBUG;
glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &gl_format);
glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &gl_type);
POP_GLES2_DEBUG;
EGLint alpha_size = -1;
eglGetConfigAttrib(renderer->egl->display, renderer->egl->config,
EGL_ALPHA_SIZE, &alpha_size);
const struct wlr_gles2_pixel_format *fmt =
get_gles2_format_from_gl(gl_format, gl_type, alpha_size > 0);
if (fmt != NULL) {
return fmt->wl_format;
}
if (renderer->exts.read_format_bgra_ext) {
return WL_SHM_FORMAT_XRGB8888;
}
return WL_SHM_FORMAT_XBGR8888;
}
static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer,
enum wl_shm_format wl_fmt, uint32_t *flags, uint32_t stride,
uint32_t width, uint32_t height, uint32_t src_x, uint32_t src_y,
@ -262,6 +299,12 @@ static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer,
return false;
}
if (fmt->gl_format == GL_BGRA_EXT && !renderer->exts.read_format_bgra_ext) {
wlr_log(WLR_ERROR,
"Cannot read pixels: missing GL_EXT_read_format_bgra extension");
return false;
}
PUSH_GLES2_DEBUG;
// Make sure any pending drawing is finished before we try to read it
@ -294,11 +337,6 @@ static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer,
return glGetError() == GL_NO_ERROR;
}
static bool gles2_format_supported(struct wlr_renderer *wlr_renderer,
enum wl_shm_format wl_fmt) {
return get_gles2_format_from_wl(wl_fmt) != NULL;
}
static struct wlr_texture *gles2_texture_from_pixels(
struct wlr_renderer *wlr_renderer, enum wl_shm_format wl_fmt,
uint32_t stride, uint32_t width, uint32_t height, const void *data) {
@ -342,7 +380,7 @@ static void gles2_destroy(struct wlr_renderer *wlr_renderer) {
glDeleteProgram(renderer->shaders.tex_ext.program);
POP_GLES2_DEBUG;
if (glDebugMessageCallbackKHR) {
if (renderer->exts.debug_khr) {
glDisable(GL_DEBUG_OUTPUT_KHR);
glDebugMessageCallbackKHR(NULL, NULL);
}
@ -360,12 +398,13 @@ static const struct wlr_renderer_impl renderer_impl = {
.render_quad_with_matrix = gles2_render_quad_with_matrix,
.render_ellipse_with_matrix = gles2_render_ellipse_with_matrix,
.formats = gles2_renderer_formats,
.format_supported = gles2_format_supported,
.resource_is_wl_drm_buffer = gles2_resource_is_wl_drm_buffer,
.wl_drm_buffer_get_size = gles2_wl_drm_buffer_get_size,
.get_dmabuf_formats = gles2_get_dmabuf_formats,
.get_dmabuf_modifiers = gles2_get_dmabuf_modifiers,
.preferred_read_format = gles2_preferred_read_format,
.read_pixels = gles2_read_pixels,
.format_supported = gles2_format_supported,
.texture_from_pixels = gles2_texture_from_pixels,
.texture_from_wl_drm = gles2_texture_from_wl_drm,
.texture_from_dmabuf = gles2_texture_from_dmabuf,
@ -466,6 +505,24 @@ error:
return 0;
}
static bool check_gl_ext(const char *exts, const char *ext) {
size_t extlen = strlen(ext);
const char *end = exts + strlen(exts);
while (exts < end) {
if (exts[0] == ' ') {
exts++;
continue;
}
size_t n = strcspn(exts, " ");
if (n == extlen && strncmp(ext, exts, n) == 0) {
return true;
}
exts += n;
}
return false;
}
extern const GLchar quad_vertex_src[];
extern const GLchar quad_fragment_src[];
extern const GLchar ellipse_fragment_src[];
@ -487,14 +544,32 @@ struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl);
renderer->egl = egl;
wlr_egl_make_current(renderer->egl, EGL_NO_SURFACE, NULL);
if (!wlr_egl_make_current(renderer->egl, EGL_NO_SURFACE, NULL)) {
free(renderer);
return NULL;
}
renderer->exts_str = (const char*) glGetString(GL_EXTENSIONS);
renderer->exts_str = (const char *)glGetString(GL_EXTENSIONS);
wlr_log(WLR_INFO, "Using %s", glGetString(GL_VERSION));
wlr_log(WLR_INFO, "GL vendor: %s", glGetString(GL_VENDOR));
wlr_log(WLR_INFO, "Supported GLES2 extensions: %s", renderer->exts_str);
if (glDebugMessageCallbackKHR && glDebugMessageControlKHR) {
if (!check_gl_ext(renderer->exts_str, "GL_EXT_texture_format_BGRA8888")) {
wlr_log(WLR_ERROR, "BGRA8888 format not supported by GLES2");
free(renderer);
return NULL;
}
renderer->exts.read_format_bgra_ext =
check_gl_ext(renderer->exts_str, "GL_EXT_read_format_bgra");
renderer->exts.debug_khr =
check_gl_ext(renderer->exts_str, "GL_KHR_debug") &&
glDebugMessageCallbackKHR && glDebugMessageControlKHR;
renderer->exts.egl_image_external_oes =
check_gl_ext(renderer->exts_str, "GL_OES_EGL_image_external") &&
glEGLImageTargetTexture2DOES;
if (renderer->exts.debug_khr) {
glEnable(GL_DEBUG_OUTPUT_KHR);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_KHR);
glDebugMessageCallbackKHR(gles2_log, NULL);
@ -545,7 +620,7 @@ struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
renderer->shaders.tex_rgbx.tex = glGetUniformLocation(prog, "tex");
renderer->shaders.tex_rgbx.alpha = glGetUniformLocation(prog, "alpha");
if (glEGLImageTargetTexture2DOES) {
if (renderer->exts.egl_image_external_oes) {
renderer->shaders.tex_ext.program = prog =
link_program(tex_vertex_src, tex_fragment_src_external);
if (!renderer->shaders.tex_ext.program) {
@ -570,7 +645,7 @@ error:
POP_GLES2_DEBUG;
if (glDebugMessageCallbackKHR) {
if (renderer->exts.debug_khr) {
glDisable(GL_DEBUG_OUTPUT_KHR);
glDebugMessageCallbackKHR(NULL, NULL);
}

9
render/wlr_renderer.c
View file

@ -139,6 +139,15 @@ int wlr_renderer_get_dmabuf_modifiers(struct wlr_renderer *r, int format,
return r->impl->get_dmabuf_modifiers(r, format, modifiers);
}
bool wlr_renderer_preferred_read_format(struct wlr_renderer *r,
enum wl_shm_format *fmt) {
if (!r->impl->preferred_read_format || !r->impl->read_pixels) {
return false;
}
*fmt = r->impl->preferred_read_format(r);
return true;
}
bool wlr_renderer_read_pixels(struct wlr_renderer *r, enum wl_shm_format fmt,
uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height,
uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,

20
types/wlr_screencopy_v1.c
View file

@ -4,6 +4,7 @@
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/backend.h>
#include <wlr/util/log.h>
#include "wlr-screencopy-unstable-v1-protocol.h"
#include "util/signal.h"
@ -40,6 +41,7 @@ static void frame_handle_output_swap_buffers(struct wl_listener *listener,
struct wlr_output_event_swap_buffers *event = _data;
struct wlr_output *output = frame->output;
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
assert(renderer);
wl_list_remove(&frame->output_swap_buffers.link);
wl_list_init(&frame->output_swap_buffers.link);
@ -214,11 +216,25 @@ static void capture_output(struct wl_client *client,
wl_list_init(&frame->output_swap_buffers.link);
wl_list_init(&frame->buffer_destroy.link);
frame->format = WL_SHM_FORMAT_XRGB8888;
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
assert(renderer);
if (!wlr_renderer_preferred_read_format(renderer, &frame->format)) {
wlr_log(WLR_ERROR,
"Failed to capture output: no read format supported by renderer");
goto error;
}
frame->box = buffer_box;
frame->stride = 4 * buffer_box.width;
frame->stride = 4 * buffer_box.width; // TODO: depends on read format
zwlr_screencopy_frame_v1_send_buffer(frame->resource, frame->format,
buffer_box.width, buffer_box.height, frame->stride);
return;
error:
zwlr_screencopy_frame_v1_send_failed(frame->resource);
frame_destroy(frame);
}
static void manager_handle_capture_output(struct wl_client *client,