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349 lines
9.9 KiB
349 lines
9.9 KiB
#include <assert.h>
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <wayland-server-protocol.h>
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#include <wayland-util.h>
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#include <wlr/render/egl.h>
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#include <wlr/render/interface.h>
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#include <wlr/render/wlr_texture.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/util/log.h>
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#include "render/gles2.h"
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#include "util/signal.h"
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static const struct wlr_texture_impl texture_impl;
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bool wlr_texture_is_gles2(struct wlr_texture *wlr_texture) {
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return wlr_texture->impl == &texture_impl;
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}
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struct wlr_gles2_texture *gles2_get_texture(
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struct wlr_texture *wlr_texture) {
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assert(wlr_texture_is_gles2(wlr_texture));
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return (struct wlr_gles2_texture *)wlr_texture;
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}
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static bool gles2_texture_is_opaque(struct wlr_texture *wlr_texture) {
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struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
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return !texture->has_alpha;
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}
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static bool check_stride(const struct wlr_gles2_pixel_format *fmt,
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uint32_t stride, uint32_t width) {
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if (stride % (fmt->bpp / 8) != 0) {
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wlr_log(WLR_ERROR, "Invalid stride %d (incompatible with %d "
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"bytes-per-pixel)", stride, fmt->bpp / 8);
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return false;
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}
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if (stride < width * (fmt->bpp / 8)) {
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wlr_log(WLR_ERROR, "Invalid stride %d (too small for %d "
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"bytes-per-pixel and width %d)", stride, fmt->bpp / 8, width);
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return false;
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}
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return true;
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}
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static bool gles2_texture_write_pixels(struct wlr_texture *wlr_texture,
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uint32_t stride, uint32_t width, uint32_t height,
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uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,
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const void *data) {
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struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
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if (texture->target != GL_TEXTURE_2D) {
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wlr_log(WLR_ERROR, "Cannot write pixels to immutable texture");
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return false;
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}
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const struct wlr_gles2_pixel_format *fmt =
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get_gles2_format_from_wl(texture->wl_format);
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assert(fmt);
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if (!check_stride(fmt, stride, width)) {
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return false;
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}
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struct wlr_egl_context prev_ctx;
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wlr_egl_save_context(&prev_ctx);
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wlr_egl_make_current(texture->renderer->egl);
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push_gles2_debug(texture->renderer);
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glBindTexture(GL_TEXTURE_2D, texture->tex);
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glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, stride / (fmt->bpp / 8));
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glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, src_x);
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glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, src_y);
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glTexSubImage2D(GL_TEXTURE_2D, 0, dst_x, dst_y, width, height,
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fmt->gl_format, fmt->gl_type, data);
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glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);
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glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, 0);
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glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, 0);
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glBindTexture(GL_TEXTURE_2D, 0);
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pop_gles2_debug(texture->renderer);
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wlr_egl_restore_context(&prev_ctx);
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return true;
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}
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static bool gles2_texture_to_dmabuf(struct wlr_texture *wlr_texture,
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struct wlr_dmabuf_attributes *attribs) {
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struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
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if (!texture->image) {
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assert(texture->target == GL_TEXTURE_2D);
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if (!texture->renderer->egl->exts.image_base_khr) {
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return false;
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}
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texture->image = texture->renderer->egl->procs.eglCreateImageKHR(
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texture->renderer->egl->display, texture->renderer->egl->context, EGL_GL_TEXTURE_2D_KHR,
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(EGLClientBuffer)(uintptr_t)texture->tex, NULL);
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if (texture->image == EGL_NO_IMAGE_KHR) {
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return false;
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}
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}
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uint32_t flags = 0;
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if (texture->inverted_y) {
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flags |= WLR_DMABUF_ATTRIBUTES_FLAGS_Y_INVERT;
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}
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return wlr_egl_export_image_to_dmabuf(texture->renderer->egl, texture->image,
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wlr_texture->width, wlr_texture->height, flags, attribs);
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}
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static void gles2_texture_destroy(struct wlr_texture *wlr_texture) {
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if (wlr_texture == NULL) {
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return;
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}
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struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
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struct wlr_egl_context prev_ctx;
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wlr_egl_save_context(&prev_ctx);
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wlr_egl_make_current(texture->renderer->egl);
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push_gles2_debug(texture->renderer);
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glDeleteTextures(1, &texture->tex);
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wlr_egl_destroy_image(texture->renderer->egl, texture->image);
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pop_gles2_debug(texture->renderer);
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wlr_egl_restore_context(&prev_ctx);
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free(texture);
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}
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static const struct wlr_texture_impl texture_impl = {
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.is_opaque = gles2_texture_is_opaque,
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.write_pixels = gles2_texture_write_pixels,
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.to_dmabuf = gles2_texture_to_dmabuf,
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.destroy = gles2_texture_destroy,
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};
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struct wlr_texture *gles2_texture_from_pixels(struct wlr_renderer *wlr_renderer,
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enum wl_shm_format wl_fmt, uint32_t stride, uint32_t width,
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uint32_t height, const void *data) {
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struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
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const struct wlr_gles2_pixel_format *fmt = get_gles2_format_from_wl(wl_fmt);
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if (fmt == NULL) {
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wlr_log(WLR_ERROR, "Unsupported pixel format %"PRIu32, wl_fmt);
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return NULL;
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}
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if (!check_stride(fmt, stride, width)) {
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return NULL;
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}
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struct wlr_gles2_texture *texture =
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calloc(1, sizeof(struct wlr_gles2_texture));
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if (texture == NULL) {
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wlr_log(WLR_ERROR, "Allocation failed");
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return NULL;
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}
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wlr_texture_init(&texture->wlr_texture, &texture_impl, width, height);
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texture->renderer = renderer;
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texture->target = GL_TEXTURE_2D;
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texture->has_alpha = fmt->has_alpha;
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texture->wl_format = fmt->wl_format;
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struct wlr_egl_context prev_ctx;
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wlr_egl_save_context(&prev_ctx);
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wlr_egl_make_current(renderer->egl);
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push_gles2_debug(renderer);
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glGenTextures(1, &texture->tex);
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glBindTexture(GL_TEXTURE_2D, texture->tex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, stride / (fmt->bpp / 8));
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glTexImage2D(GL_TEXTURE_2D, 0, fmt->gl_format, width, height, 0,
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fmt->gl_format, fmt->gl_type, data);
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glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);
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glBindTexture(GL_TEXTURE_2D, 0);
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pop_gles2_debug(renderer);
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wlr_egl_restore_context(&prev_ctx);
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return &texture->wlr_texture;
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}
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struct wlr_texture *gles2_texture_from_wl_drm(struct wlr_renderer *wlr_renderer,
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struct wl_resource *resource) {
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struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
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if (!renderer->procs.glEGLImageTargetTexture2DOES) {
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return NULL;
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}
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struct wlr_egl_context prev_ctx;
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wlr_egl_save_context(&prev_ctx);
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wlr_egl_make_current(renderer->egl);
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EGLint fmt;
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int width, height;
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bool inverted_y;
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EGLImageKHR image = wlr_egl_create_image_from_wl_drm(renderer->egl, resource,
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&fmt, &width, &height, &inverted_y);
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if (image == EGL_NO_IMAGE_KHR) {
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wlr_log(WLR_ERROR, "Failed to create EGL image from wl_drm resource");
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goto error_ctx;
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}
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struct wlr_gles2_texture *texture =
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calloc(1, sizeof(struct wlr_gles2_texture));
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if (texture == NULL) {
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wlr_log(WLR_ERROR, "Allocation failed");
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goto error_image;
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}
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wlr_texture_init(&texture->wlr_texture, &texture_impl, width, height);
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texture->renderer = renderer;
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texture->wl_format = 0xFFFFFFFF; // texture can't be written anyways
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texture->image = image;
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texture->inverted_y = inverted_y;
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switch (fmt) {
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case EGL_TEXTURE_RGB:
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texture->has_alpha = false;
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break;
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case EGL_TEXTURE_RGBA:
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case EGL_TEXTURE_EXTERNAL_WL:
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texture->has_alpha = true;
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break;
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default:
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wlr_log(WLR_ERROR, "Invalid or unsupported EGL buffer format");
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goto error_texture;
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}
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texture->target = GL_TEXTURE_EXTERNAL_OES;
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push_gles2_debug(renderer);
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glGenTextures(1, &texture->tex);
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glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture->tex);
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glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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renderer->procs.glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES,
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texture->image);
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glBindTexture(GL_TEXTURE_EXTERNAL_OES, 0);
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pop_gles2_debug(renderer);
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wlr_egl_restore_context(&prev_ctx);
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return &texture->wlr_texture;
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error_texture:
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free(texture);
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error_image:
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wlr_egl_destroy_image(renderer->egl, image);
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error_ctx:
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wlr_egl_restore_context(&prev_ctx);
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return NULL;
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}
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struct wlr_texture *gles2_texture_from_dmabuf(struct wlr_renderer *wlr_renderer,
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struct wlr_dmabuf_attributes *attribs) {
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struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
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if (!renderer->procs.glEGLImageTargetTexture2DOES) {
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return NULL;
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}
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if (!renderer->egl->exts.image_dmabuf_import_ext) {
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wlr_log(WLR_ERROR, "Cannot create DMA-BUF texture: EGL extension "
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"unavailable");
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return NULL;
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}
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struct wlr_gles2_texture *texture =
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calloc(1, sizeof(struct wlr_gles2_texture));
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if (texture == NULL) {
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wlr_log(WLR_ERROR, "Allocation failed");
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return NULL;
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}
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wlr_texture_init(&texture->wlr_texture, &texture_impl,
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attribs->width, attribs->height);
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texture->renderer = renderer;
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texture->has_alpha = true;
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texture->wl_format = 0xFFFFFFFF; // texture can't be written anyways
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texture->inverted_y =
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(attribs->flags & WLR_DMABUF_ATTRIBUTES_FLAGS_Y_INVERT) != 0;
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struct wlr_egl_context prev_ctx;
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wlr_egl_save_context(&prev_ctx);
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wlr_egl_make_current(renderer->egl);
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bool external_only;
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texture->image =
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wlr_egl_create_image_from_dmabuf(renderer->egl, attribs, &external_only);
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if (texture->image == EGL_NO_IMAGE_KHR) {
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wlr_log(WLR_ERROR, "Failed to create EGL image from DMA-BUF");
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wlr_egl_restore_context(&prev_ctx);
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free(texture);
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return NULL;
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}
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texture->target = external_only ? GL_TEXTURE_EXTERNAL_OES : GL_TEXTURE_2D;
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push_gles2_debug(renderer);
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glGenTextures(1, &texture->tex);
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glBindTexture(texture->target, texture->tex);
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glTexParameteri(texture->target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(texture->target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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renderer->procs.glEGLImageTargetTexture2DOES(texture->target, texture->image);
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glBindTexture(texture->target, 0);
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pop_gles2_debug(renderer);
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wlr_egl_restore_context(&prev_ctx);
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return &texture->wlr_texture;
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}
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void wlr_gles2_texture_get_attribs(struct wlr_texture *wlr_texture,
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struct wlr_gles2_texture_attribs *attribs) {
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struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
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memset(attribs, 0, sizeof(*attribs));
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attribs->target = texture->target;
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attribs->tex = texture->tex;
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attribs->inverted_y = texture->inverted_y;
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attribs->has_alpha = texture->has_alpha;
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}
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