302 lines
8.1 KiB
C
302 lines
8.1 KiB
C
#include <assert.h>
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#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>
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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 "glapi.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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struct wlr_gles2_texture *gles2_get_texture(
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struct wlr_texture *wlr_texture) {
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assert(wlr_texture->impl == &texture_impl);
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return (struct wlr_gles2_texture *)wlr_texture;
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}
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struct wlr_gles2_texture *get_gles2_texture_in_context(
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struct wlr_texture *wlr_texture) {
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struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
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if (!wlr_egl_is_current(texture->egl)) {
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wlr_egl_make_current(texture->egl, EGL_NO_SURFACE, NULL);
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}
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return texture;
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}
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static void gles2_texture_get_size(struct wlr_texture *wlr_texture, int *width,
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int *height) {
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struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
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*width = texture->width;
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*height = texture->height;
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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 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 =
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get_gles2_texture_in_context(wlr_texture);
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if (texture->type != WLR_GLES2_TEXTURE_GLTEX) {
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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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// TODO: what if the unpack subimage extension isn't supported?
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PUSH_GLES2_DEBUG;
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glBindTexture(GL_TEXTURE_2D, texture->gl_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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POP_GLES2_DEBUG;
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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->type == WLR_GLES2_TEXTURE_GLTEX);
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if (!eglCreateImageKHR) {
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return false;
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}
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texture->image = eglCreateImageKHR(texture->egl->display,
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texture->egl->context, EGL_GL_TEXTURE_2D_KHR,
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(EGLClientBuffer)(uintptr_t)texture->gl_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->egl, texture->image,
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texture->width, 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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wlr_egl_make_current(texture->egl, EGL_NO_SURFACE, NULL);
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PUSH_GLES2_DEBUG;
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if (texture->image_tex) {
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glDeleteTextures(1, &texture->image_tex);
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}
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wlr_egl_destroy_image(texture->egl, texture->image);
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if (texture->type == WLR_GLES2_TEXTURE_GLTEX) {
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glDeleteTextures(1, &texture->gl_tex);
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}
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POP_GLES2_DEBUG;
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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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.get_size = gles2_texture_get_size,
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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 *wlr_gles2_texture_from_pixels(struct wlr_egl *egl,
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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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if (!wlr_egl_is_current(egl)) {
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wlr_egl_make_current(egl, EGL_NO_SURFACE, NULL);
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}
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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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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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texture->egl = egl;
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texture->width = width;
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texture->height = height;
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texture->type = WLR_GLES2_TEXTURE_GLTEX;
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texture->has_alpha = fmt->has_alpha;
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texture->wl_format = fmt->wl_format;
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PUSH_GLES2_DEBUG;
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glGenTextures(1, &texture->gl_tex);
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glBindTexture(GL_TEXTURE_2D, texture->gl_tex);
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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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POP_GLES2_DEBUG;
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return &texture->wlr_texture;
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}
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struct wlr_texture *wlr_gles2_texture_from_wl_drm(struct wlr_egl *egl,
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struct wl_resource *data) {
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if (!wlr_egl_is_current(egl)) {
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wlr_egl_make_current(egl, EGL_NO_SURFACE, NULL);
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}
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if (!glEGLImageTargetTexture2DOES) {
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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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texture->egl = egl;
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texture->wl_drm = data;
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EGLint fmt;
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texture->wl_format = 0xFFFFFFFF; // texture can't be written anyways
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texture->image = wlr_egl_create_image_from_wl_drm(egl, data, &fmt,
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&texture->width, &texture->height, &texture->inverted_y);
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if (texture->image == NULL) {
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free(texture);
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return NULL;
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}
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GLenum target;
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switch (fmt) {
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case EGL_TEXTURE_RGB:
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case EGL_TEXTURE_RGBA:
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target = GL_TEXTURE_2D;
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texture->type = WLR_GLES2_TEXTURE_WL_DRM_GL;
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texture->has_alpha = fmt == EGL_TEXTURE_RGBA;
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break;
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case EGL_TEXTURE_EXTERNAL_WL:
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target = GL_TEXTURE_EXTERNAL_OES;
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texture->type = WLR_GLES2_TEXTURE_WL_DRM_EXT;
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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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free(texture);
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return NULL;
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}
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PUSH_GLES2_DEBUG;
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glGenTextures(1, &texture->image_tex);
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glBindTexture(target, texture->image_tex);
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glEGLImageTargetTexture2DOES(target, texture->image);
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POP_GLES2_DEBUG;
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return &texture->wlr_texture;
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}
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struct wlr_texture *wlr_gles2_texture_from_dmabuf(struct wlr_egl *egl,
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struct wlr_dmabuf_attributes *attribs) {
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if (!wlr_egl_is_current(egl)) {
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wlr_egl_make_current(egl, EGL_NO_SURFACE, NULL);
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}
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if (!glEGLImageTargetTexture2DOES) {
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return NULL;
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}
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if (!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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switch (attribs->format & ~DRM_FORMAT_BIG_ENDIAN) {
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case WL_SHM_FORMAT_YUYV:
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case WL_SHM_FORMAT_YVYU:
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case WL_SHM_FORMAT_UYVY:
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case WL_SHM_FORMAT_VYUY:
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case WL_SHM_FORMAT_AYUV:
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// TODO: YUV based formats not yet supported, require multiple images
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return false;
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default:
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break;
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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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texture->egl = egl;
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texture->width = attribs->width;
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texture->height = attribs->height;
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texture->type = WLR_GLES2_TEXTURE_DMABUF;
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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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texture->image = wlr_egl_create_image_from_dmabuf(egl, attribs);
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if (texture->image == NULL) {
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free(texture);
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return NULL;
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}
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PUSH_GLES2_DEBUG;
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glGenTextures(1, &texture->image_tex);
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glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture->image_tex);
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glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, texture->image);
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POP_GLES2_DEBUG;
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return &texture->wlr_texture;
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}
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