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#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 <stdio.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_renderer.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_linux_dmabuf_v1.h>
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#include <wlr/util/log.h>
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#include "render/gles2.h"
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static const GLfloat verts[] = {
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1, 0, // top right
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0, 0, // top left
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1, 1, // bottom right
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0, 1, // bottom left
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};
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static const struct wlr_renderer_impl renderer_impl;
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struct wlr_gles2_renderer *gles2_get_renderer(
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struct wlr_renderer *wlr_renderer) {
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assert(wlr_renderer->impl == &renderer_impl);
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return (struct wlr_gles2_renderer *)wlr_renderer;
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}
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static struct wlr_gles2_renderer *gles2_get_renderer_in_context(
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struct wlr_renderer *wlr_renderer) {
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struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
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assert(wlr_egl_is_current(renderer->egl));
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return renderer;
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}
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static void gles2_begin(struct wlr_renderer *wlr_renderer, uint32_t width,
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uint32_t height) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(wlr_renderer);
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push_gles2_debug(renderer);
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glViewport(0, 0, width, height);
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renderer->viewport_width = width;
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renderer->viewport_height = height;
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// enable transparency
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glEnable(GL_BLEND);
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glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
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// XXX: maybe we should save output projection and remove some of the need
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// for users to sling matricies themselves
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pop_gles2_debug(renderer);
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}
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static void gles2_end(struct wlr_renderer *wlr_renderer) {
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gles2_get_renderer_in_context(wlr_renderer);
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// no-op
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}
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static void gles2_clear(struct wlr_renderer *wlr_renderer,
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const float color[static 4]) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(wlr_renderer);
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push_gles2_debug(renderer);
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glClearColor(color[0], color[1], color[2], color[3]);
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glClear(GL_COLOR_BUFFER_BIT);
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pop_gles2_debug(renderer);
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}
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static void gles2_scissor(struct wlr_renderer *wlr_renderer,
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struct wlr_box *box) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(wlr_renderer);
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push_gles2_debug(renderer);
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if (box != NULL) {
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struct wlr_box gl_box;
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wlr_box_transform(&gl_box, box, WL_OUTPUT_TRANSFORM_FLIPPED_180,
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renderer->viewport_width, renderer->viewport_height);
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glScissor(gl_box.x, gl_box.y, gl_box.width, gl_box.height);
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glEnable(GL_SCISSOR_TEST);
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} else {
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glDisable(GL_SCISSOR_TEST);
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}
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pop_gles2_debug(renderer);
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}
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static bool gles2_render_subtexture_with_matrix(
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struct wlr_renderer *wlr_renderer, struct wlr_texture *wlr_texture,
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const struct wlr_fbox *box, const float matrix[static 9],
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float alpha) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(wlr_renderer);
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struct wlr_gles2_texture *texture =
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gles2_get_texture(wlr_texture);
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struct wlr_gles2_tex_shader *shader = NULL;
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switch (texture->target) {
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case GL_TEXTURE_2D:
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if (texture->has_alpha) {
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shader = &renderer->shaders.tex_rgba;
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} else {
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shader = &renderer->shaders.tex_rgbx;
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}
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break;
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case GL_TEXTURE_EXTERNAL_OES:
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shader = &renderer->shaders.tex_ext;
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if (!renderer->exts.egl_image_external_oes) {
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wlr_log(WLR_ERROR, "Failed to render texture: "
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"GL_TEXTURE_EXTERNAL_OES not supported");
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return false;
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}
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break;
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default:
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abort();
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}
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// OpenGL ES 2 requires the glUniformMatrix3fv transpose parameter to be set
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// to GL_FALSE
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float transposition[9];
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wlr_matrix_transpose(transposition, matrix);
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push_gles2_debug(renderer);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(texture->target, texture->tex);
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glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glUseProgram(shader->program);
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glUniformMatrix3fv(shader->proj, 1, GL_FALSE, transposition);
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glUniform1i(shader->invert_y, texture->inverted_y);
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glUniform1i(shader->tex, 0);
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glUniform1f(shader->alpha, alpha);
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const GLfloat x1 = box->x / wlr_texture->width;
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const GLfloat y1 = box->y / wlr_texture->height;
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const GLfloat x2 = (box->x + box->width) / wlr_texture->width;
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const GLfloat y2 = (box->y + box->height) / wlr_texture->height;
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const GLfloat texcoord[] = {
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x2, y1, // top right
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x1, y1, // top left
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x2, y2, // bottom right
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x1, y2, // bottom left
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};
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glVertexAttribPointer(shader->pos_attrib, 2, GL_FLOAT, GL_FALSE, 0, verts);
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glVertexAttribPointer(shader->tex_attrib, 2, GL_FLOAT, GL_FALSE, 0, texcoord);
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glEnableVertexAttribArray(shader->pos_attrib);
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glEnableVertexAttribArray(shader->tex_attrib);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
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glDisableVertexAttribArray(shader->pos_attrib);
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glDisableVertexAttribArray(shader->tex_attrib);
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glBindTexture(texture->target, 0);
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pop_gles2_debug(renderer);
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return true;
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}
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static void gles2_render_quad_with_matrix(struct wlr_renderer *wlr_renderer,
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const float color[static 4], const float matrix[static 9]) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(wlr_renderer);
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// OpenGL ES 2 requires the glUniformMatrix3fv transpose parameter to be set
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// to GL_FALSE
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float transposition[9];
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wlr_matrix_transpose(transposition, matrix);
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push_gles2_debug(renderer);
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glUseProgram(renderer->shaders.quad.program);
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glUniformMatrix3fv(renderer->shaders.quad.proj, 1, GL_FALSE, transposition);
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glUniform4f(renderer->shaders.quad.color, color[0], color[1], color[2], color[3]);
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glVertexAttribPointer(renderer->shaders.quad.pos_attrib, 2, GL_FLOAT, GL_FALSE,
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0, verts);
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glEnableVertexAttribArray(renderer->shaders.quad.pos_attrib);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
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glDisableVertexAttribArray(renderer->shaders.quad.pos_attrib);
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pop_gles2_debug(renderer);
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}
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static void gles2_render_ellipse_with_matrix(struct wlr_renderer *wlr_renderer,
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const float color[static 4], const float matrix[static 9]) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(wlr_renderer);
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// OpenGL ES 2 requires the glUniformMatrix3fv transpose parameter to be set
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// to GL_FALSE
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float transposition[9];
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wlr_matrix_transpose(transposition, matrix);
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static const GLfloat texcoord[] = {
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1, 0, // top right
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0, 0, // top left
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1, 1, // bottom right
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0, 1, // bottom left
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};
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push_gles2_debug(renderer);
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glUseProgram(renderer->shaders.ellipse.program);
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glUniformMatrix3fv(renderer->shaders.ellipse.proj, 1, GL_FALSE, transposition);
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glUniform4f(renderer->shaders.ellipse.color, color[0], color[1], color[2], color[3]);
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glVertexAttribPointer(renderer->shaders.ellipse.pos_attrib, 2, GL_FLOAT,
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GL_FALSE, 0, verts);
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glVertexAttribPointer(renderer->shaders.ellipse.tex_attrib, 2, GL_FLOAT,
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GL_FALSE, 0, texcoord);
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glEnableVertexAttribArray(renderer->shaders.ellipse.pos_attrib);
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glEnableVertexAttribArray(renderer->shaders.ellipse.tex_attrib);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
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glDisableVertexAttribArray(renderer->shaders.ellipse.pos_attrib);
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glDisableVertexAttribArray(renderer->shaders.ellipse.tex_attrib);
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pop_gles2_debug(renderer);
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}
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static const enum wl_shm_format *gles2_renderer_formats(
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struct wlr_renderer *wlr_renderer, size_t *len) {
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return get_gles2_wl_formats(len);
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}
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static bool gles2_format_supported(struct wlr_renderer *wlr_renderer,
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enum wl_shm_format wl_fmt) {
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return get_gles2_format_from_wl(wl_fmt) != NULL;
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}
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static bool gles2_resource_is_wl_drm_buffer(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->egl->exts.bind_wayland_display_wl) {
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return false;
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}
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EGLint fmt;
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return renderer->egl->procs.eglQueryWaylandBufferWL(renderer->egl->display,
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resource, EGL_TEXTURE_FORMAT, &fmt);
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}
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static void gles2_wl_drm_buffer_get_size(struct wlr_renderer *wlr_renderer,
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struct wl_resource *buffer, int *width, int *height) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer(wlr_renderer);
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if (!renderer->egl->exts.bind_wayland_display_wl) {
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return;
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}
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renderer->egl->procs.eglQueryWaylandBufferWL(renderer->egl->display,
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buffer, EGL_WIDTH, width);
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renderer->egl->procs.eglQueryWaylandBufferWL(renderer->egl->display,
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buffer, EGL_HEIGHT, height);
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}
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static const struct wlr_drm_format_set *gles2_get_dmabuf_formats(
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struct wlr_renderer *wlr_renderer) {
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struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
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return wlr_egl_get_dmabuf_formats(renderer->egl);
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}
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static enum wl_shm_format gles2_preferred_read_format(
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struct wlr_renderer *wlr_renderer) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(wlr_renderer);
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GLint gl_format = -1, gl_type = -1;
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push_gles2_debug(renderer);
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glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &gl_format);
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glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &gl_type);
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pop_gles2_debug(renderer);
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EGLint alpha_size = -1;
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eglGetConfigAttrib(renderer->egl->display, renderer->egl->config,
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EGL_ALPHA_SIZE, &alpha_size);
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const struct wlr_gles2_pixel_format *fmt =
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get_gles2_format_from_gl(gl_format, gl_type, alpha_size > 0);
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if (fmt != NULL) {
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return fmt->wl_format;
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}
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if (renderer->exts.read_format_bgra_ext) {
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return WL_SHM_FORMAT_XRGB8888;
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}
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return WL_SHM_FORMAT_XBGR8888;
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}
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static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer,
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enum wl_shm_format wl_fmt, uint32_t *flags, uint32_t stride,
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uint32_t width, uint32_t height, uint32_t src_x, uint32_t src_y,
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uint32_t dst_x, uint32_t dst_y, void *data) {
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struct wlr_gles2_renderer *renderer =
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gles2_get_renderer_in_context(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, "Cannot read pixels: unsupported pixel format");
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return false;
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}
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if (fmt->gl_format == GL_BGRA_EXT && !renderer->exts.read_format_bgra_ext) {
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wlr_log(WLR_ERROR,
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"Cannot read pixels: missing GL_EXT_read_format_bgra extension");
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return false;
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}
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push_gles2_debug(renderer);
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// Make sure any pending drawing is finished before we try to read it
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glFinish();
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glGetError(); // Clear the error flag
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unsigned char *p = (unsigned char *)data + dst_y * stride;
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uint32_t pack_stride = width * fmt->bpp / 8;
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if (pack_stride == stride && dst_x == 0 && flags != NULL) {
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|
|
// Under these particular conditions, we can read the pixels with only
|
|
|
|
// one glReadPixels call
|
|
|
|
glReadPixels(src_x, renderer->viewport_height - height - src_y,
|
|
|
|
width, height, fmt->gl_format, fmt->gl_type, p);
|
|
|
|
*flags = WLR_RENDERER_READ_PIXELS_Y_INVERT;
|
|
|
|
} else {
|
|
|
|
// Unfortunately GLES2 doesn't support GL_PACK_*, so we have to read
|
|
|
|
// the lines out row by row
|
|
|
|
for (size_t i = 0; i < height; ++i) {
|
|
|
|
glReadPixels(src_x, renderer->viewport_height - src_y - i - 1, width, 1, fmt->gl_format,
|
|
|
|
fmt->gl_type, p + i * stride + dst_x * fmt->bpp / 8);
|
|
|
|
}
|
|
|
|
if (flags != NULL) {
|
|
|
|
*flags = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pop_gles2_debug(renderer);
|
|
|
|
|
|
|
|
return glGetError() == GL_NO_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool gles2_blit_dmabuf(struct wlr_renderer *wlr_renderer,
|
|
|
|
struct wlr_dmabuf_attributes *dst_attr,
|
|
|
|
struct wlr_dmabuf_attributes *src_attr) {
|
|
|
|
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
|
|
|
|
if (!renderer->procs.glEGLImageTargetRenderbufferStorageOES) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct wlr_egl_context old_context;
|
|
|
|
wlr_egl_save_context(&old_context);
|
|
|
|
|
|
|
|
bool r = false;
|
|
|
|
struct wlr_texture *src_tex =
|
|
|
|
wlr_texture_from_dmabuf(wlr_renderer, src_attr);
|
|
|
|
if (!src_tex) {
|
|
|
|
goto restore_context_out;
|
|
|
|
}
|
|
|
|
|
|
|
|
// This is to take into account y-inversion on both buffers rather than
|
|
|
|
// just the source buffer.
|
|
|
|
bool src_inverted_y =
|
|
|
|
!!(src_attr->flags & WLR_DMABUF_ATTRIBUTES_FLAGS_Y_INVERT);
|
|
|
|
bool dst_inverted_y =
|
|
|
|
!!(dst_attr->flags & WLR_DMABUF_ATTRIBUTES_FLAGS_Y_INVERT);
|
|
|
|
struct wlr_gles2_texture *gles2_src_tex = gles2_get_texture(src_tex);
|
|
|
|
// The result is negated because wlr_matrix_projection y-inverts the
|
|
|
|
// texture.
|
|
|
|
gles2_src_tex->inverted_y = !(src_inverted_y ^ dst_inverted_y);
|
|
|
|
|
|
|
|
if (!wlr_egl_make_current(renderer->egl, EGL_NO_SURFACE, NULL)) {
|
|
|
|
goto texture_destroy_out;
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO: The imported buffer should be checked with
|
|
|
|
// eglQueryDmaBufModifiersEXT to see if it may be modified.
|
|
|
|
bool external_only = false;
|
|
|
|
EGLImageKHR image = wlr_egl_create_image_from_dmabuf(renderer->egl, dst_attr,
|
|
|
|
&external_only);
|
|
|
|
if (image == EGL_NO_IMAGE_KHR) {
|
|
|
|
goto texture_destroy_out;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLuint rbo = 0;
|
|
|
|
glGenRenderbuffers(1, &rbo);
|
|
|
|
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
|
|
|
|
renderer->procs.glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
|
|
|
|
image);
|
|
|
|
glBindRenderbuffer(GL_RENDERBUFFER, 0);
|
|
|
|
|
|
|
|
GLuint fbo = 0;
|
|
|
|
glGenFramebuffers(1, &fbo);
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
|
|
|
|
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
|
|
|
|
GL_RENDERBUFFER, rbo);
|
|
|
|
|
|
|
|
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
|
|
|
|
if (status != GL_FRAMEBUFFER_COMPLETE) {
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO: use ANGLE_framebuffer_blit if available
|
|
|
|
float mat[9];
|
|
|
|
wlr_matrix_projection(mat, 1, 1, WL_OUTPUT_TRANSFORM_NORMAL);
|
|
|
|
|
|
|
|
wlr_renderer_begin(wlr_renderer, dst_attr->width, dst_attr->height);
|
|
|
|
wlr_renderer_clear(wlr_renderer, (float[]){ 0.0, 0.0, 0.0, 0.0 });
|
|
|
|
wlr_render_texture_with_matrix(wlr_renderer, src_tex, mat, 1.0f);
|
|
|
|
wlr_renderer_end(wlr_renderer);
|
|
|
|
|
|
|
|
r = true;
|
|
|
|
out:
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
|
|
|
glDeleteFramebuffers(1, &fbo);
|
|
|
|
glDeleteRenderbuffers(1, &rbo);
|
|
|
|
wlr_egl_destroy_image(renderer->egl, image);
|
|
|
|
texture_destroy_out:
|
|
|
|
wlr_texture_destroy(src_tex);
|
|
|
|
restore_context_out:
|
|
|
|
wlr_egl_restore_context(&old_context);
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool gles2_init_wl_display(struct wlr_renderer *wlr_renderer,
|
|
|
|
struct wl_display *wl_display) {
|
|
|
|
struct wlr_gles2_renderer *renderer =
|
|
|
|
gles2_get_renderer(wlr_renderer);
|
|
|
|
|
|
|
|
if (renderer->egl->exts.bind_wayland_display_wl) {
|
|
|
|
if (!wlr_egl_bind_display(renderer->egl, wl_display)) {
|
|
|
|
wlr_log(WLR_ERROR, "Failed to bind wl_display to EGL");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
wlr_log(WLR_INFO, "EGL_WL_bind_wayland_display is not supported");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (renderer->egl->exts.image_dmabuf_import_ext) {
|
|
|
|
if (wlr_linux_dmabuf_v1_create(wl_display, wlr_renderer) == NULL) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
wlr_log(WLR_INFO, "EGL_EXT_image_dma_buf_import is not supported");
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
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, EGL_NO_SURFACE, NULL);
|
|
|
|
|
|
|
|
push_gles2_debug(renderer);
|
|
|
|
glDeleteProgram(renderer->shaders.quad.program);
|
|
|
|
glDeleteProgram(renderer->shaders.ellipse.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.debug_khr) {
|
|
|
|
glDisable(GL_DEBUG_OUTPUT_KHR);
|
|
|
|
renderer->procs.glDebugMessageCallbackKHR(NULL, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
wlr_egl_unset_current(renderer->egl);
|
|
|
|
|
|
|
|
free(renderer);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct wlr_renderer_impl renderer_impl = {
|
|
|
|
.destroy = gles2_destroy,
|
|
|
|
.begin = gles2_begin,
|
|
|
|
.end = gles2_end,
|
|
|
|
.clear = gles2_clear,
|
|
|
|
.scissor = gles2_scissor,
|
|
|
|
.render_subtexture_with_matrix = gles2_render_subtexture_with_matrix,
|
|
|
|
.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,
|
|
|
|
.preferred_read_format = gles2_preferred_read_format,
|
|
|
|
.read_pixels = gles2_read_pixels,
|
|
|
|
.texture_from_pixels = gles2_texture_from_pixels,
|
|
|
|
.texture_from_wl_drm = gles2_texture_from_wl_drm,
|
|
|
|
.texture_from_dmabuf = gles2_texture_from_dmabuf,
|
|
|
|
.init_wl_display = gles2_init_wl_display,
|
|
|
|
.blit_dmabuf = gles2_blit_dmabuf,
|
|
|
|
};
|
|
|
|
|
|
|
|
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();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static enum wlr_log_importance gles2_log_importance_to_wlr(GLenum type) {
|
|
|
|
switch (type) {
|
|
|
|
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,
|
|
|
|
GLuint 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) {
|
|
|
|
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) {
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
|
|
|
extern const GLchar quad_vertex_src[];
|
|
|
|
extern const GLchar quad_fragment_src[];
|
|
|
|
extern const GLchar ellipse_fragment_src[];
|
|
|
|
extern const GLchar tex_vertex_src[];
|
|
|
|
extern const GLchar tex_fragment_src_rgba[];
|
|
|
|
extern const GLchar tex_fragment_src_rgbx[];
|
|
|
|
extern const GLchar tex_fragment_src_external[];
|
|
|
|
|
|
|
|
struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
|
|
|
|
if (!wlr_egl_make_current(egl, EGL_NO_SURFACE, 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(struct wlr_gles2_renderer));
|
|
|
|
if (renderer == NULL) {
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl);
|
|
|
|
|
|
|
|
renderer->egl = egl;
|
|
|
|
renderer->exts_str = exts_str;
|
|
|
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
|
|
|
renderer->exts.read_format_bgra_ext =
|
|
|
|
check_gl_ext(exts_str, "GL_EXT_read_format_bgra");
|
|
|
|
|
|
|
|
if (check_gl_ext(exts_str, "GL_KHR_debug")) {
|
|
|
|
renderer->exts.debug_khr = 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.egl_image_external_oes = true;
|
|
|
|
load_gl_proc(&renderer->procs.glEGLImageTargetTexture2DOES,
|
|
|
|
"glEGLImageTargetTexture2DOES");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (check_gl_ext(exts_str, "GL_OES_EGL_image")) {
|
|
|
|
renderer->exts.egl_image_oes = true;
|
|
|
|
load_gl_proc(&renderer->procs.glEGLImageTargetRenderbufferStorageOES,
|
|
|
|
"glEGLImageTargetRenderbufferStorageOES");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (renderer->exts.debug_khr) {
|
|
|
|
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, quad_vertex_src, quad_fragment_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.ellipse.program = prog =
|
|
|
|
link_program(renderer, quad_vertex_src, ellipse_fragment_src);
|
|
|
|
if (!renderer->shaders.ellipse.program) {
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
renderer->shaders.ellipse.proj = glGetUniformLocation(prog, "proj");
|
|
|
|
renderer->shaders.ellipse.color = glGetUniformLocation(prog, "color");
|
|
|
|
renderer->shaders.ellipse.pos_attrib = glGetAttribLocation(prog, "pos");
|
|
|
|
renderer->shaders.ellipse.tex_attrib = glGetAttribLocation(prog, "texcoord");
|
|
|
|
|
|
|
|
renderer->shaders.tex_rgba.program = prog =
|
|
|
|
link_program(renderer, tex_vertex_src, tex_fragment_src_rgba);
|
|
|
|
if (!renderer->shaders.tex_rgba.program) {
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
renderer->shaders.tex_rgba.proj = glGetUniformLocation(prog, "proj");
|
|
|
|
renderer->shaders.tex_rgba.invert_y = glGetUniformLocation(prog, "invert_y");
|
|
|
|
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_rgba.tex_attrib = glGetAttribLocation(prog, "texcoord");
|
|
|
|
|
|
|
|
renderer->shaders.tex_rgbx.program = prog =
|
|
|
|
link_program(renderer, tex_vertex_src, tex_fragment_src_rgbx);
|
|
|
|
if (!renderer->shaders.tex_rgbx.program) {
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
renderer->shaders.tex_rgbx.proj = glGetUniformLocation(prog, "proj");
|
|
|
|
renderer->shaders.tex_rgbx.invert_y = glGetUniformLocation(prog, "invert_y");
|
|
|
|
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");
|
|
|
|
renderer->shaders.tex_rgbx.tex_attrib = glGetAttribLocation(prog, "texcoord");
|
|
|
|
|
|
|
|
if (renderer->exts.egl_image_external_oes) {
|
|
|
|
renderer->shaders.tex_ext.program = prog =
|
|
|
|
link_program(renderer, tex_vertex_src, tex_fragment_src_external);
|
|
|
|
if (!renderer->shaders.tex_ext.program) {
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
renderer->shaders.tex_ext.proj = glGetUniformLocation(prog, "proj");
|
|
|
|
renderer->shaders.tex_ext.invert_y = glGetUniformLocation(prog, "invert_y");
|
|
|
|
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");
|
|
|
|
renderer->shaders.tex_ext.tex_attrib = glGetAttribLocation(prog, "texcoord");
|
|
|
|
}
|
|
|
|
|
|
|
|
pop_gles2_debug(renderer);
|
|
|
|
|
|
|
|
wlr_egl_unset_current(renderer->egl);
|
|
|
|
|
|
|
|
return &renderer->wlr_renderer;
|
|
|
|
|
|
|
|
error:
|
|
|
|
glDeleteProgram(renderer->shaders.quad.program);
|
|
|
|
glDeleteProgram(renderer->shaders.ellipse.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.debug_khr) {
|
|
|
|
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);
|
|
|
|
}
|