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gl-renderer: Use eglSwapBuffersWithDamageEXT when available

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Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Jason Ekstrand 2014-02-04 21:36:39 -06:00 committed by Kristian Høgsberg
parent e5512d4014
commit 8e96f9eb6a
1 changed files with 107 additions and 0 deletions
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107
src/gl-renderer.c
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@ -124,6 +124,10 @@ struct gl_renderer {
PFNEGLCREATEIMAGEKHRPROC create_image;
PFNEGLDESTROYIMAGEKHRPROC destroy_image;
#ifdef EGL_EXT_swap_buffers_with_damage
PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage;
#endif
int has_unpack_subimage;
PFNEGLBINDWAYLANDDISPLAYWL bind_display;
@ -677,6 +681,17 @@ draw_output_border_texture(struct gl_output_state *go,
glDisableVertexAttribArray(0);
}
static int
output_has_borders(struct weston_output *output)
{
struct gl_output_state *go = get_output_state(output);
return go->borders[GL_RENDERER_BORDER_TOP].data ||
go->borders[GL_RENDERER_BORDER_RIGHT].data ||
go->borders[GL_RENDERER_BORDER_BOTTOM].data ||
go->borders[GL_RENDERER_BORDER_LEFT].data;
}
static void
draw_output_borders(struct weston_output *output,
enum gl_border_status border_status)
@ -731,6 +746,43 @@ draw_output_borders(struct weston_output *output,
full_width, bottom->height);
}
static void
output_get_border_damage(struct weston_output *output,
enum gl_border_status border_status,
pixman_region32_t *damage)
{
struct gl_output_state *go = get_output_state(output);
struct gl_border_image *top, *bottom, *left, *right;
int full_width, full_height;
if (border_status == BORDER_STATUS_CLEAN)
return; /* Clean. Nothing to do. */
top = &go->borders[GL_RENDERER_BORDER_TOP];
bottom = &go->borders[GL_RENDERER_BORDER_BOTTOM];
left = &go->borders[GL_RENDERER_BORDER_LEFT];
right = &go->borders[GL_RENDERER_BORDER_RIGHT];
full_width = output->current_mode->width + left->width + right->width;
full_height = output->current_mode->height + top->height + bottom->height;
if (border_status & BORDER_TOP_DIRTY)
pixman_region32_union_rect(damage, damage,
0, 0,
full_width, top->height);
if (border_status & BORDER_LEFT_DIRTY)
pixman_region32_union_rect(damage, damage,
0, top->height,
left->width, output->current_mode->height);
if (border_status & BORDER_RIGHT_DIRTY)
pixman_region32_union_rect(damage, damage,
full_width - right->width, top->height,
right->width, output->current_mode->height);
if (border_status & BORDER_BOTTOM_DIRTY)
pixman_region32_union_rect(damage, damage,
0, full_height - bottom->height,
full_width, bottom->height);
}
static void
output_get_damage(struct weston_output *output,
pixman_region32_t *buffer_damage, uint32_t *border_damage)
@ -802,6 +854,11 @@ gl_renderer_repaint_output(struct weston_output *output,
struct gl_renderer *gr = get_renderer(compositor);
EGLBoolean ret;
static int errored;
#ifdef EGL_EXT_swap_buffers_with_damage
int i, nrects, buffer_height;
EGLint *egl_damage, *d;
pixman_box32_t *rects;
#endif
pixman_region32_t buffer_damage, total_damage;
enum gl_border_status border_damage = BORDER_STATUS_CLEAN;
@ -847,7 +904,48 @@ gl_renderer_repaint_output(struct weston_output *output,
pixman_region32_copy(&output->previous_damage, output_damage);
wl_signal_emit(&output->frame_signal, output);
#ifdef EGL_EXT_swap_buffers_with_damage
if (gr->swap_buffers_with_damage) {
pixman_region32_init(&buffer_damage);
weston_transformed_region(output->width, output->height,
output->transform,
output->current_scale,
output_damage, &buffer_damage);
if (output_has_borders(output)) {
pixman_region32_translate(&buffer_damage,
go->borders[GL_RENDERER_BORDER_LEFT].width,
go->borders[GL_RENDERER_BORDER_TOP].height);
output_get_border_damage(output, go->border_status,
&buffer_damage);
}
rects = pixman_region32_rectangles(&buffer_damage, &nrects);
egl_damage = malloc(nrects * 4 * sizeof(EGLint));
buffer_height = go->borders[GL_RENDERER_BORDER_TOP].height +
output->current_mode->height +
go->borders[GL_RENDERER_BORDER_BOTTOM].height;
d = egl_damage;
for (i = 0; i < nrects; ++i) {
*d++ = rects[i].x1;
*d++ = buffer_height - rects[i].y2;
*d++ = rects[i].x2 - rects[i].x1;
*d++ = rects[i].y2 - rects[i].y1;
}
ret = gr->swap_buffers_with_damage(gr->egl_display,
go->egl_surface,
egl_damage, nrects);
free(egl_damage);
pixman_region32_fini(&buffer_damage);
} else {
ret = eglSwapBuffers(gr->egl_display, go->egl_surface);
}
#else /* ! defined EGL_EXT_swap_buffers_with_damage */
ret = eglSwapBuffers(gr->egl_display, go->egl_surface);
#endif
if (ret == EGL_FALSE && !errored) {
errored = 1;
weston_log("Failed in eglSwapBuffers.\n");
@ -1958,6 +2056,15 @@ gl_renderer_setup(struct weston_compositor *ec, EGLSurface egl_surface)
weston_log("warning: EGL_EXT_buffer_age not supported. "
"Performance could be affected.\n");
#ifdef EGL_EXT_swap_buffers_with_damage
if (strstr(extensions, "EGL_EXT_swap_buffers_with_damage"))
gr->swap_buffers_with_damage =
(void *) eglGetProcAddress("eglSwapBuffersWithDamageEXT");
else
weston_log("warning: EGL_EXT_swap_buffers_with_damage not "
"supported. Performance could be affected.\n");
#endif
glActiveTexture(GL_TEXTURE0);
if (compile_shaders(ec))