wlroots-hyprland/render/gles2/renderer.c

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#include <assert.h>
#include <drm_fourcc.h>
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include <stdint.h>
#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
#include <unistd.h>
#include <wayland-server-protocol.h>
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#include <wayland-util.h>
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#include <wlr/render/egl.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/util/box.h>
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#include <wlr/util/log.h>
#include "render/egl.h"
#include "render/gles2.h"
#include "render/pixel_format.h"
#include "types/wlr_matrix.h"
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#include "util/time.h"
#include "common_vert_src.h"
#include "quad_frag_src.h"
#include "tex_rgba_frag_src.h"
#include "tex_rgbx_frag_src.h"
#include "tex_external_frag_src.h"
static const struct wlr_renderer_impl renderer_impl;
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static const struct wlr_render_timer_impl render_timer_impl;
bool wlr_renderer_is_gles2(struct wlr_renderer *wlr_renderer) {
return wlr_renderer->impl == &renderer_impl;
}
struct wlr_gles2_renderer *gles2_get_renderer(
struct wlr_renderer *wlr_renderer) {
assert(wlr_renderer_is_gles2(wlr_renderer));
struct wlr_gles2_renderer *renderer = wl_container_of(wlr_renderer, renderer, wlr_renderer);
return renderer;
}
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bool wlr_render_timer_is_gles2(struct wlr_render_timer *timer) {
return timer->impl == &render_timer_impl;
}
struct wlr_gles2_render_timer *gles2_get_render_timer(struct wlr_render_timer *wlr_timer) {
assert(wlr_render_timer_is_gles2(wlr_timer));
struct wlr_gles2_render_timer *timer = wl_container_of(wlr_timer, timer, base);
return timer;
}
static void destroy_buffer(struct wlr_gles2_buffer *buffer) {
wl_list_remove(&buffer->link);
wlr_addon_finish(&buffer->addon);
struct wlr_egl_context prev_ctx;
wlr_egl_make_current(buffer->renderer->egl, &prev_ctx);
push_gles2_debug(buffer->renderer);
glDeleteFramebuffers(1, &buffer->fbo);
glDeleteRenderbuffers(1, &buffer->rbo);
glDeleteTextures(1, &buffer->tex);
pop_gles2_debug(buffer->renderer);
wlr_egl_destroy_image(buffer->renderer->egl, buffer->image);
wlr_egl_restore_context(&prev_ctx);
free(buffer);
}
static void handle_buffer_destroy(struct wlr_addon *addon) {
struct wlr_gles2_buffer *buffer =
wl_container_of(addon, buffer, addon);
destroy_buffer(buffer);
}
static const struct wlr_addon_interface buffer_addon_impl = {
.name = "wlr_gles2_buffer",
.destroy = handle_buffer_destroy,
};
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GLuint gles2_buffer_get_fbo(struct wlr_gles2_buffer *buffer) {
if (buffer->external_only) {
wlr_log(WLR_ERROR, "DMA-BUF format is external-only");
return 0;
}
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if (buffer->fbo) {
return buffer->fbo;
}
push_gles2_debug(buffer->renderer);
if (!buffer->rbo) {
glGenRenderbuffers(1, &buffer->rbo);
glBindRenderbuffer(GL_RENDERBUFFER, buffer->rbo);
buffer->renderer->procs.glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
buffer->image);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
}
glGenFramebuffers(1, &buffer->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, buffer->fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER, buffer->rbo);
GLenum fb_status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
if (fb_status != GL_FRAMEBUFFER_COMPLETE) {
wlr_log(WLR_ERROR, "Failed to create FBO");
glDeleteFramebuffers(1, &buffer->fbo);
buffer->fbo = 0;
}
pop_gles2_debug(buffer->renderer);
return buffer->fbo;
}
struct wlr_gles2_buffer *gles2_buffer_get_or_create(struct wlr_gles2_renderer *renderer,
struct wlr_buffer *wlr_buffer) {
struct wlr_addon *addon =
wlr_addon_find(&wlr_buffer->addons, renderer, &buffer_addon_impl);
if (addon) {
struct wlr_gles2_buffer *buffer = wl_container_of(addon, buffer, addon);
return buffer;
}
struct wlr_gles2_buffer *buffer = calloc(1, sizeof(*buffer));
if (buffer == NULL) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return NULL;
}
buffer->buffer = wlr_buffer;
buffer->renderer = renderer;
struct wlr_dmabuf_attributes dmabuf = {0};
if (!wlr_buffer_get_dmabuf(wlr_buffer, &dmabuf)) {
goto error_buffer;
}
buffer->image = wlr_egl_create_image_from_dmabuf(renderer->egl,
&dmabuf, &buffer->external_only);
if (buffer->image == EGL_NO_IMAGE_KHR) {
goto error_buffer;
}
wlr_addon_init(&buffer->addon, &wlr_buffer->addons, renderer,
&buffer_addon_impl);
wl_list_insert(&renderer->buffers, &buffer->link);
wlr_log(WLR_DEBUG, "Created GL FBO for buffer %dx%d",
wlr_buffer->width, wlr_buffer->height);
return buffer;
error_buffer:
free(buffer);
return NULL;
}
static const uint32_t *gles2_get_shm_texture_formats(
struct wlr_renderer *wlr_renderer, size_t *len) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
return get_gles2_shm_formats(renderer, len);
}
static const struct wlr_drm_format_set *gles2_get_dmabuf_texture_formats(
struct wlr_renderer *wlr_renderer) {
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struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
return wlr_egl_get_dmabuf_texture_formats(renderer->egl);
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}
static const struct wlr_drm_format_set *gles2_get_render_formats(
struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
return wlr_egl_get_dmabuf_render_formats(renderer->egl);
}
static int gles2_get_drm_fd(struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer =
gles2_get_renderer(wlr_renderer);
if (renderer->drm_fd < 0) {
renderer->drm_fd = wlr_egl_dup_drm_fd(renderer->egl);
}
return renderer->drm_fd;
}
static uint32_t gles2_get_render_buffer_caps(struct wlr_renderer *wlr_renderer) {
return WLR_BUFFER_CAP_DMABUF;
}
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struct wlr_egl *wlr_gles2_renderer_get_egl(struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer =
gles2_get_renderer(wlr_renderer);
return renderer->egl;
}
static void gles2_destroy(struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
wlr_egl_make_current(renderer->egl, NULL);
struct wlr_gles2_texture *tex, *tex_tmp;
wl_list_for_each_safe(tex, tex_tmp, &renderer->textures, link) {
gles2_texture_destroy(tex);
}
struct wlr_gles2_buffer *buffer, *buffer_tmp;
wl_list_for_each_safe(buffer, buffer_tmp, &renderer->buffers, link) {
destroy_buffer(buffer);
}
push_gles2_debug(renderer);
glDeleteProgram(renderer->shaders.quad.program);
glDeleteProgram(renderer->shaders.tex_rgba.program);
glDeleteProgram(renderer->shaders.tex_rgbx.program);
glDeleteProgram(renderer->shaders.tex_ext.program);
pop_gles2_debug(renderer);
if (renderer->exts.KHR_debug) {
glDisable(GL_DEBUG_OUTPUT_KHR);
renderer->procs.glDebugMessageCallbackKHR(NULL, NULL);
}
wlr_egl_unset_current(renderer->egl);
wlr_egl_destroy(renderer->egl);
if (renderer->drm_fd >= 0) {
close(renderer->drm_fd);
}
free(renderer);
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}
static struct wlr_render_pass *gles2_begin_buffer_pass(struct wlr_renderer *wlr_renderer,
struct wlr_buffer *wlr_buffer, const struct wlr_buffer_pass_options *options) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
struct wlr_egl_context prev_ctx = {0};
if (!wlr_egl_make_current(renderer->egl, &prev_ctx)) {
return NULL;
}
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struct wlr_gles2_render_timer *timer = NULL;
if (options->timer) {
timer = gles2_get_render_timer(options->timer);
clock_gettime(CLOCK_MONOTONIC, &timer->cpu_start);
}
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struct wlr_gles2_buffer *buffer = gles2_buffer_get_or_create(renderer, wlr_buffer);
if (!buffer) {
return NULL;
}
struct wlr_gles2_render_pass *pass = begin_gles2_buffer_pass(buffer, &prev_ctx, timer);
if (!pass) {
return NULL;
}
return &pass->base;
}
GLuint wlr_gles2_renderer_get_buffer_fbo(struct wlr_renderer *wlr_renderer,
struct wlr_buffer *wlr_buffer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
GLuint fbo = 0;
struct wlr_egl_context prev_ctx = {0};
if (!wlr_egl_make_current(renderer->egl, &prev_ctx)) {
return 0;
}
struct wlr_gles2_buffer *buffer = gles2_buffer_get_or_create(renderer, wlr_buffer);
if (buffer) {
fbo = gles2_buffer_get_fbo(buffer);
}
wlr_egl_restore_context(&prev_ctx);
return fbo;
}
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static struct wlr_render_timer *gles2_render_timer_create(struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
if (!renderer->exts.EXT_disjoint_timer_query) {
wlr_log(WLR_ERROR, "can't create timer, EXT_disjoint_timer_query not available");
return NULL;
}
struct wlr_gles2_render_timer *timer = calloc(1, sizeof(*timer));
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if (!timer) {
return NULL;
}
timer->base.impl = &render_timer_impl;
timer->renderer = renderer;
struct wlr_egl_context prev_ctx;
wlr_egl_make_current(renderer->egl, &prev_ctx);
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renderer->procs.glGenQueriesEXT(1, &timer->id);
wlr_egl_restore_context(&prev_ctx);
return &timer->base;
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}
static int gles2_get_render_time(struct wlr_render_timer *wlr_timer) {
struct wlr_gles2_render_timer *timer = gles2_get_render_timer(wlr_timer);
struct wlr_gles2_renderer *renderer = timer->renderer;
struct wlr_egl_context prev_ctx;
wlr_egl_make_current(renderer->egl, &prev_ctx);
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GLint64 disjoint;
renderer->procs.glGetInteger64vEXT(GL_GPU_DISJOINT_EXT, &disjoint);
if (disjoint) {
wlr_log(WLR_ERROR, "a disjoint operation occurred and the render timer is invalid");
wlr_egl_restore_context(&prev_ctx);
return -1;
}
GLint available;
renderer->procs.glGetQueryObjectivEXT(timer->id,
GL_QUERY_RESULT_AVAILABLE_EXT, &available);
if (!available) {
wlr_log(WLR_ERROR, "timer was read too early, gpu isn't done!");
wlr_egl_restore_context(&prev_ctx);
return -1;
}
GLuint64 gl_render_end;
renderer->procs.glGetQueryObjectui64vEXT(timer->id, GL_QUERY_RESULT_EXT,
&gl_render_end);
int64_t cpu_nsec_total = timespec_to_nsec(&timer->cpu_end) - timespec_to_nsec(&timer->cpu_start);
wlr_egl_restore_context(&prev_ctx);
return gl_render_end - timer->gl_cpu_end + cpu_nsec_total;
}
static void gles2_render_timer_destroy(struct wlr_render_timer *wlr_timer) {
struct wlr_gles2_render_timer *timer = wl_container_of(wlr_timer, timer, base);
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struct wlr_gles2_renderer *renderer = timer->renderer;
struct wlr_egl_context prev_ctx;
wlr_egl_make_current(renderer->egl, &prev_ctx);
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renderer->procs.glDeleteQueriesEXT(1, &timer->id);
wlr_egl_restore_context(&prev_ctx);
free(timer);
}
static const struct wlr_renderer_impl renderer_impl = {
.destroy = gles2_destroy,
.get_shm_texture_formats = gles2_get_shm_texture_formats,
.get_dmabuf_texture_formats = gles2_get_dmabuf_texture_formats,
.get_render_formats = gles2_get_render_formats,
.get_drm_fd = gles2_get_drm_fd,
.get_render_buffer_caps = gles2_get_render_buffer_caps,
.texture_from_buffer = gles2_texture_from_buffer,
.begin_buffer_pass = gles2_begin_buffer_pass,
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.render_timer_create = gles2_render_timer_create,
};
static const struct wlr_render_timer_impl render_timer_impl = {
.get_duration_ns = gles2_get_render_time,
.destroy = gles2_render_timer_destroy,
};
void push_gles2_debug_(struct wlr_gles2_renderer *renderer,
const char *file, const char *func) {
if (!renderer->procs.glPushDebugGroupKHR) {
return;
}
int len = snprintf(NULL, 0, "%s:%s", file, func) + 1;
char str[len];
snprintf(str, len, "%s:%s", file, func);
renderer->procs.glPushDebugGroupKHR(GL_DEBUG_SOURCE_APPLICATION_KHR, 1, -1, str);
}
void pop_gles2_debug(struct wlr_gles2_renderer *renderer) {
if (renderer->procs.glPopDebugGroupKHR) {
renderer->procs.glPopDebugGroupKHR();
}
}
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static enum wlr_log_importance gles2_log_importance_to_wlr(GLenum type) {
switch (type) {
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case GL_DEBUG_TYPE_ERROR_KHR: return WLR_ERROR;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_KHR: return WLR_DEBUG;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_KHR: return WLR_ERROR;
case GL_DEBUG_TYPE_PORTABILITY_KHR: return WLR_DEBUG;
case GL_DEBUG_TYPE_PERFORMANCE_KHR: return WLR_DEBUG;
case GL_DEBUG_TYPE_OTHER_KHR: return WLR_DEBUG;
case GL_DEBUG_TYPE_MARKER_KHR: return WLR_DEBUG;
case GL_DEBUG_TYPE_PUSH_GROUP_KHR: return WLR_DEBUG;
case GL_DEBUG_TYPE_POP_GROUP_KHR: return WLR_DEBUG;
default: return WLR_DEBUG;
}
}
static void gles2_log(GLenum src, GLenum type, GLuint id, GLenum severity,
GLsizei len, const GLchar *msg, const void *user) {
_wlr_log(gles2_log_importance_to_wlr(type), "[GLES2] %s", msg);
}
static GLuint compile_shader(struct wlr_gles2_renderer *renderer,
GLenum type, const GLchar *src) {
push_gles2_debug(renderer);
GLuint shader = glCreateShader(type);
glShaderSource(shader, 1, &src, NULL);
glCompileShader(shader);
GLint ok;
glGetShaderiv(shader, GL_COMPILE_STATUS, &ok);
if (ok == GL_FALSE) {
wlr_log(WLR_ERROR, "Failed to compile shader");
glDeleteShader(shader);
shader = 0;
}
pop_gles2_debug(renderer);
return shader;
}
static GLuint link_program(struct wlr_gles2_renderer *renderer,
const GLchar *vert_src, const GLchar *frag_src) {
push_gles2_debug(renderer);
GLuint vert = compile_shader(renderer, GL_VERTEX_SHADER, vert_src);
if (!vert) {
goto error;
}
GLuint frag = compile_shader(renderer, GL_FRAGMENT_SHADER, frag_src);
if (!frag) {
glDeleteShader(vert);
goto error;
}
GLuint prog = glCreateProgram();
glAttachShader(prog, vert);
glAttachShader(prog, frag);
glLinkProgram(prog);
glDetachShader(prog, vert);
glDetachShader(prog, frag);
glDeleteShader(vert);
glDeleteShader(frag);
GLint ok;
glGetProgramiv(prog, GL_LINK_STATUS, &ok);
if (ok == GL_FALSE) {
wlr_log(WLR_ERROR, "Failed to link shader");
glDeleteProgram(prog);
goto error;
}
pop_gles2_debug(renderer);
return prog;
error:
pop_gles2_debug(renderer);
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;
}
static void load_gl_proc(void *proc_ptr, const char *name) {
void *proc = (void *)eglGetProcAddress(name);
if (proc == NULL) {
wlr_log(WLR_ERROR, "eglGetProcAddress(%s) failed", name);
abort();
}
*(void **)proc_ptr = proc;
}
struct wlr_renderer *wlr_gles2_renderer_create_with_drm_fd(int drm_fd) {
struct wlr_egl *egl = wlr_egl_create_with_drm_fd(drm_fd);
if (egl == NULL) {
wlr_log(WLR_ERROR, "Could not initialize EGL");
return NULL;
}
struct wlr_renderer *renderer = wlr_gles2_renderer_create(egl);
if (!renderer) {
wlr_log(WLR_ERROR, "Failed to create GLES2 renderer");
wlr_egl_destroy(egl);
return NULL;
}
return renderer;
}
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struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
if (!wlr_egl_make_current(egl, NULL)) {
return NULL;
}
const char *exts_str = (const char *)glGetString(GL_EXTENSIONS);
if (exts_str == NULL) {
wlr_log(WLR_ERROR, "Failed to get GL_EXTENSIONS");
return NULL;
}
struct wlr_gles2_renderer *renderer = calloc(1, sizeof(*renderer));
if (renderer == NULL) {
return NULL;
}
wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl);
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wl_list_init(&renderer->buffers);
wl_list_init(&renderer->textures);
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renderer->egl = egl;
renderer->exts_str = exts_str;
renderer->drm_fd = -1;
wlr_log(WLR_INFO, "Creating GLES2 renderer");
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wlr_log(WLR_INFO, "Using %s", glGetString(GL_VERSION));
wlr_log(WLR_INFO, "GL vendor: %s", glGetString(GL_VENDOR));
wlr_log(WLR_INFO, "GL renderer: %s", glGetString(GL_RENDERER));
wlr_log(WLR_INFO, "Supported GLES2 extensions: %s", exts_str);
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if (!renderer->egl->exts.EXT_image_dma_buf_import) {
wlr_log(WLR_ERROR, "EGL_EXT_image_dma_buf_import not supported");
free(renderer);
return NULL;
}
if (!check_gl_ext(exts_str, "GL_EXT_texture_format_BGRA8888")) {
wlr_log(WLR_ERROR, "BGRA8888 format not supported by GLES2");
free(renderer);
return NULL;
}
if (!check_gl_ext(exts_str, "GL_EXT_unpack_subimage")) {
wlr_log(WLR_ERROR, "GL_EXT_unpack_subimage not supported");
free(renderer);
return NULL;
}
renderer->exts.EXT_read_format_bgra =
check_gl_ext(exts_str, "GL_EXT_read_format_bgra");
renderer->exts.EXT_texture_type_2_10_10_10_REV =
check_gl_ext(exts_str, "GL_EXT_texture_type_2_10_10_10_REV");
renderer->exts.OES_texture_half_float_linear =
check_gl_ext(exts_str, "GL_OES_texture_half_float_linear");
renderer->exts.EXT_texture_norm16 =
check_gl_ext(exts_str, "GL_EXT_texture_norm16");
if (check_gl_ext(exts_str, "GL_KHR_debug")) {
renderer->exts.KHR_debug = true;
load_gl_proc(&renderer->procs.glDebugMessageCallbackKHR,
"glDebugMessageCallbackKHR");
load_gl_proc(&renderer->procs.glDebugMessageControlKHR,
"glDebugMessageControlKHR");
}
if (check_gl_ext(exts_str, "GL_OES_EGL_image_external")) {
renderer->exts.OES_egl_image_external = true;
load_gl_proc(&renderer->procs.glEGLImageTargetTexture2DOES,
"glEGLImageTargetTexture2DOES");
}
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if (check_gl_ext(exts_str, "GL_OES_EGL_image")) {
renderer->exts.OES_egl_image = true;
load_gl_proc(&renderer->procs.glEGLImageTargetRenderbufferStorageOES,
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"glEGLImageTargetRenderbufferStorageOES");
}
if (check_gl_ext(exts_str, "GL_KHR_robustness")) {
GLint notif_strategy = 0;
glGetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_KHR, &notif_strategy);
switch (notif_strategy) {
case GL_LOSE_CONTEXT_ON_RESET_KHR:
wlr_log(WLR_DEBUG, "GPU reset notifications are enabled");
load_gl_proc(&renderer->procs.glGetGraphicsResetStatusKHR,
"glGetGraphicsResetStatusKHR");
break;
case GL_NO_RESET_NOTIFICATION_KHR:
wlr_log(WLR_DEBUG, "GPU reset notifications are disabled");
break;
}
}
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if (check_gl_ext(exts_str, "GL_EXT_disjoint_timer_query")) {
renderer->exts.EXT_disjoint_timer_query = true;
load_gl_proc(&renderer->procs.glGenQueriesEXT, "glGenQueriesEXT");
load_gl_proc(&renderer->procs.glDeleteQueriesEXT, "glDeleteQueriesEXT");
load_gl_proc(&renderer->procs.glQueryCounterEXT, "glQueryCounterEXT");
load_gl_proc(&renderer->procs.glGetQueryObjectivEXT, "glGetQueryObjectivEXT");
load_gl_proc(&renderer->procs.glGetQueryObjectui64vEXT, "glGetQueryObjectui64vEXT");
if (eglGetProcAddress("glGetInteger64vEXT")) {
load_gl_proc(&renderer->procs.glGetInteger64vEXT, "glGetInteger64vEXT");
} else {
load_gl_proc(&renderer->procs.glGetInteger64vEXT, "glGetInteger64v");
}
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}
if (renderer->exts.KHR_debug) {
glEnable(GL_DEBUG_OUTPUT_KHR);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_KHR);
renderer->procs.glDebugMessageCallbackKHR(gles2_log, NULL);
// Silence unwanted message types
renderer->procs.glDebugMessageControlKHR(GL_DONT_CARE,
GL_DEBUG_TYPE_POP_GROUP_KHR, GL_DONT_CARE, 0, NULL, GL_FALSE);
renderer->procs.glDebugMessageControlKHR(GL_DONT_CARE,
GL_DEBUG_TYPE_PUSH_GROUP_KHR, GL_DONT_CARE, 0, NULL, GL_FALSE);
}
push_gles2_debug(renderer);
GLuint prog;
renderer->shaders.quad.program = prog =
link_program(renderer, common_vert_src, quad_frag_src);
if (!renderer->shaders.quad.program) {
goto error;
}
renderer->shaders.quad.proj = glGetUniformLocation(prog, "proj");
renderer->shaders.quad.color = glGetUniformLocation(prog, "color");
renderer->shaders.quad.pos_attrib = glGetAttribLocation(prog, "pos");
renderer->shaders.tex_rgba.program = prog =
link_program(renderer, common_vert_src, tex_rgba_frag_src);
if (!renderer->shaders.tex_rgba.program) {
goto error;
}
renderer->shaders.tex_rgba.proj = glGetUniformLocation(prog, "proj");
renderer->shaders.tex_rgba.tex_proj = glGetUniformLocation(prog, "tex_proj");
renderer->shaders.tex_rgba.tex = glGetUniformLocation(prog, "tex");
renderer->shaders.tex_rgba.alpha = glGetUniformLocation(prog, "alpha");
renderer->shaders.tex_rgba.pos_attrib = glGetAttribLocation(prog, "pos");
renderer->shaders.tex_rgbx.program = prog =
link_program(renderer, common_vert_src, tex_rgbx_frag_src);
if (!renderer->shaders.tex_rgbx.program) {
goto error;
}
renderer->shaders.tex_rgbx.proj = glGetUniformLocation(prog, "proj");
renderer->shaders.tex_rgbx.tex_proj = glGetUniformLocation(prog, "tex_proj");
renderer->shaders.tex_rgbx.tex = glGetUniformLocation(prog, "tex");
renderer->shaders.tex_rgbx.alpha = glGetUniformLocation(prog, "alpha");
renderer->shaders.tex_rgbx.pos_attrib = glGetAttribLocation(prog, "pos");
if (renderer->exts.OES_egl_image_external) {
renderer->shaders.tex_ext.program = prog =
link_program(renderer, common_vert_src, tex_external_frag_src);
if (!renderer->shaders.tex_ext.program) {
goto error;
}
renderer->shaders.tex_ext.proj = glGetUniformLocation(prog, "proj");
renderer->shaders.tex_ext.tex_proj = glGetUniformLocation(prog, "tex_proj");
renderer->shaders.tex_ext.tex = glGetUniformLocation(prog, "tex");
renderer->shaders.tex_ext.alpha = glGetUniformLocation(prog, "alpha");
renderer->shaders.tex_ext.pos_attrib = glGetAttribLocation(prog, "pos");
}
pop_gles2_debug(renderer);
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wlr_egl_unset_current(renderer->egl);
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return &renderer->wlr_renderer;
error:
glDeleteProgram(renderer->shaders.quad.program);
glDeleteProgram(renderer->shaders.tex_rgba.program);
glDeleteProgram(renderer->shaders.tex_rgbx.program);
glDeleteProgram(renderer->shaders.tex_ext.program);
pop_gles2_debug(renderer);
if (renderer->exts.KHR_debug) {
glDisable(GL_DEBUG_OUTPUT_KHR);
renderer->procs.glDebugMessageCallbackKHR(NULL, NULL);
}
wlr_egl_unset_current(renderer->egl);
free(renderer);
return NULL;
}
bool wlr_gles2_renderer_check_ext(struct wlr_renderer *wlr_renderer,
const char *ext) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
return check_gl_ext(renderer->exts_str, ext);
}