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gl-renderer: Track border damage and only repaint borders on an as-needed basis

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Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
dev
Jason Ekstrand 11 years ago committed by Kristian Høgsberg
parent 9a7ad67d65
commit e5512d4014
1 changed files with 81 additions and 29 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 110
      src/gl-renderer.c

110
src/gl-renderer.c
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@ -50,18 +50,29 @@ struct gl_shader {
#define BUFFER_DAMAGE_COUNT 2
enum gl_border_status {
BORDER_STATUS_CLEAN = 0,
BORDER_TOP_DIRTY = 1 << GL_RENDERER_BORDER_TOP,
BORDER_LEFT_DIRTY = 1 << GL_RENDERER_BORDER_LEFT,
BORDER_RIGHT_DIRTY = 1 << GL_RENDERER_BORDER_RIGHT,
BORDER_BOTTOM_DIRTY = 1 << GL_RENDERER_BORDER_BOTTOM,
BORDER_ALL_DIRTY = 0xf,
BORDER_SIZE_CHANGED = 0x10
};
struct gl_border_image {
GLuint tex;
int32_t width, height;
int32_t tex_width;
int dirty;
void *data;
};
struct gl_output_state {
EGLSurface egl_surface;
pixman_region32_t buffer_damage[BUFFER_DAMAGE_COUNT];
enum gl_border_status border_damage[BUFFER_DAMAGE_COUNT];
struct gl_border_image borders[4];
enum gl_border_status border_status;
};
enum buffer_type {
@ -597,9 +608,12 @@ repaint_views(struct weston_output *output, pixman_region32_t *damage)
}
static void
draw_output_border_texture(struct gl_border_image *img, int32_t x, int32_t y,
draw_output_border_texture(struct gl_output_state *go,
enum gl_renderer_border_side side,
int32_t x, int32_t y,
int32_t width, int32_t height)
{
struct gl_border_image *img = &go->borders[side];
static GLushort indices [] = { 0, 1, 3, 3, 1, 2 };
if (!img->data) {
@ -627,7 +641,7 @@ draw_output_border_texture(struct gl_border_image *img, int32_t x, int32_t y,
glBindTexture(GL_TEXTURE_2D, img->tex);
}
if (img->dirty) {
if (go->border_status & (1 << side)) {
#ifdef GL_EXT_unpack_subimage
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, 0);
@ -636,7 +650,6 @@ draw_output_border_texture(struct gl_border_image *img, int32_t x, int32_t y,
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
img->tex_width, img->height, 0,
GL_BGRA_EXT, GL_UNSIGNED_BYTE, img->data);
img->dirty = 0;
}
GLfloat texcoord[] = {
@ -665,7 +678,8 @@ draw_output_border_texture(struct gl_border_image *img, int32_t x, int32_t y,
}
static void
draw_output_border(struct weston_output *output)
draw_output_borders(struct weston_output *output,
enum gl_border_status border_status)
{
struct gl_output_state *go = get_output_state(output);
struct gl_renderer *gr = get_renderer(output->compositor);
@ -674,6 +688,9 @@ draw_output_border(struct weston_output *output)
struct weston_matrix matrix;
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];
@ -696,23 +713,27 @@ draw_output_border(struct weston_output *output)
glUniform1f(shader->alpha_uniform, 1);
glActiveTexture(GL_TEXTURE0);
draw_output_border_texture(top,
0, 0,
full_width, top->height);
draw_output_border_texture(left,
0, top->height,
left->width, output->current_mode->height);
draw_output_border_texture(right,
full_width - right->width, top->height,
right->width, output->current_mode->height);
draw_output_border_texture(bottom,
0, full_height - bottom->height,
full_width, bottom->height);
if (border_status & BORDER_TOP_DIRTY)
draw_output_border_texture(go, GL_RENDERER_BORDER_TOP,
0, 0,
full_width, top->height);
if (border_status & BORDER_LEFT_DIRTY)
draw_output_border_texture(go, GL_RENDERER_BORDER_LEFT,
0, top->height,
left->width, output->current_mode->height);
if (border_status & BORDER_RIGHT_DIRTY)
draw_output_border_texture(go, GL_RENDERER_BORDER_RIGHT,
full_width - right->width, top->height,
right->width, output->current_mode->height);
if (border_status & BORDER_BOTTOM_DIRTY)
draw_output_border_texture(go, GL_RENDERER_BORDER_BOTTOM,
0, full_height - bottom->height,
full_width, bottom->height);
}
static void
output_get_buffer_damage(struct weston_output *output,
pixman_region32_t *buffer_damage)
output_get_damage(struct weston_output *output,
pixman_region32_t *buffer_damage, uint32_t *border_damage)
{
struct gl_output_state *go = get_output_state(output);
struct gl_renderer *gr = get_renderer(output->compositor);
@ -729,17 +750,31 @@ output_get_buffer_damage(struct weston_output *output,
}
}
if (buffer_age == 0 || buffer_age - 1 > BUFFER_DAMAGE_COUNT)
if (buffer_age == 0 || buffer_age - 1 > BUFFER_DAMAGE_COUNT) {
pixman_region32_copy(buffer_damage, &output->region);
else
*border_damage = BORDER_ALL_DIRTY;
} else {
for (i = 0; i < buffer_age - 1; i++)
pixman_region32_union(buffer_damage, buffer_damage,
&go->buffer_damage[i]);
*border_damage |= go->border_damage[i];
if (*border_damage & BORDER_SIZE_CHANGED) {
/* If we've had a resize, we have to do a full
* repaint. */
*border_damage |= BORDER_ALL_DIRTY;
pixman_region32_copy(buffer_damage, &output->region);
} else {
for (i = 0; i < buffer_age - 1; i++)
pixman_region32_union(buffer_damage,
buffer_damage,
&go->buffer_damage[i]);
}
}
}
static void
output_rotate_damage(struct weston_output *output,
pixman_region32_t *output_damage)
pixman_region32_t *output_damage,
enum gl_border_status border_status)
{
struct gl_output_state *go = get_output_state(output);
struct gl_renderer *gr = get_renderer(output->compositor);
@ -748,10 +783,13 @@ output_rotate_damage(struct weston_output *output,
if (!gr->has_egl_buffer_age)
return;
for (i = BUFFER_DAMAGE_COUNT - 1; i >= 1; i--)
for (i = BUFFER_DAMAGE_COUNT - 1; i >= 1; i--) {
go->border_damage[i] = go->border_damage[i - 1];
pixman_region32_copy(&go->buffer_damage[i],
&go->buffer_damage[i - 1]);
}
go->border_damage[0] = border_status;
pixman_region32_copy(&go->buffer_damage[0], output_damage);
}
@ -765,6 +803,7 @@ gl_renderer_repaint_output(struct weston_output *output,
EGLBoolean ret;
static int errored;
pixman_region32_t buffer_damage, total_damage;
enum gl_border_status border_damage = BORDER_STATUS_CLEAN;
/* Calculate the viewport */
glViewport(go->borders[GL_RENDERER_BORDER_LEFT].width,
@ -792,17 +831,18 @@ gl_renderer_repaint_output(struct weston_output *output,
pixman_region32_init(&total_damage);
pixman_region32_init(&buffer_damage);
output_get_buffer_damage(output, &buffer_damage);
output_rotate_damage(output, output_damage);
output_get_damage(output, &buffer_damage, &border_damage);
output_rotate_damage(output, output_damage, go->border_status);
pixman_region32_union(&total_damage, &buffer_damage, output_damage);
border_damage |= go->border_status;
repaint_views(output, &total_damage);
pixman_region32_fini(&total_damage);
pixman_region32_fini(&buffer_damage);
draw_output_border(output);
draw_output_borders(output, border_damage);
pixman_region32_copy(&output->previous_damage, output_damage);
wl_signal_emit(&output->frame_signal, output);
@ -814,6 +854,7 @@ gl_renderer_repaint_output(struct weston_output *output,
gl_renderer_print_egl_error_state();
}
go->border_status = BORDER_STATUS_CLEAN;
}
static int
@ -1527,11 +1568,22 @@ gl_renderer_output_set_border(struct weston_output *output,
{
struct gl_output_state *go = get_output_state(output);
if (go->borders[side].width != width ||
go->borders[side].height != height)
/* In this case, we have to blow everything and do a full
* repaint. */
go->border_status |= BORDER_SIZE_CHANGED | BORDER_ALL_DIRTY;
if (data == NULL) {
width = 0;
height = 0;
}
go->borders[side].width = width;
go->borders[side].height = height;
go->borders[side].tex_width = tex_width;
go->borders[side].data = data;
go->borders[side].dirty = 1;
go->border_status |= 1 << side;
}
static int

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