static Bool
glamor_copy_n_to_n_fbo_blit(DrawablePtr src,
DrawablePtr dst,
GCPtr gc, BoxPtr box, int nbox, int dx, int dy)
{
ScreenPtr screen = dst->pScreen;
PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
glamor_pixmap_private *src_pixmap_priv, *dst_pixmap_priv;
glamor_screen_private *glamor_priv =
glamor_get_screen_private(screen);
glamor_gl_dispatch *dispatch;
int dst_x_off, dst_y_off, src_x_off, src_y_off, i;
int fbo_x_off, fbo_y_off;
int src_fbo_x_off, src_fbo_y_off;
if (!glamor_priv->has_fbo_blit) {
glamor_delayed_fallback(screen,
"no EXT_framebuffer_blit\n");
return FALSE;
}
src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
dst_pixmap_priv = glamor_get_pixmap_private(dst_pixmap);
if (gc) {
if (gc->alu != GXcopy) {
glamor_delayed_fallback(screen, "non-copy ALU\n");
return FALSE;
}
}
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(src_pixmap_priv)) {
glamor_delayed_fallback(screen, "no src fbo\n");
return FALSE;
}
if (glamor_set_destination_pixmap(dst_pixmap))
return FALSE;
pixmap_priv_get_fbo_off(dst_pixmap_priv, &fbo_x_off, &fbo_y_off);
pixmap_priv_get_fbo_off(src_pixmap_priv, &src_fbo_x_off, &src_fbo_y_off);
dispatch = glamor_get_dispatch(glamor_priv);
dispatch->glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT,
src_pixmap_priv->base.fbo->fb);
glamor_get_drawable_deltas(dst, dst_pixmap, &dst_x_off,
&dst_y_off);
glamor_get_drawable_deltas(src, src_pixmap, &src_x_off,
&src_y_off);
dst_x_off += fbo_x_off;
dst_y_off += fbo_y_off;
src_y_off += dy + src_fbo_y_off;
src_x_off += src_fbo_x_off;
for (i = 0; i < nbox; i++) {
if (glamor_priv->yInverted) {
dispatch->glBlitFramebuffer((box[i].x1 + dx +
src_x_off),
(box[i].y1 +
src_y_off),
(box[i].x2 + dx +
src_x_off),
(box[i].y2 +
src_y_off),
(box[i].x1 +
dst_x_off),
(box[i].y1 +
dst_y_off),
(box[i].x2 +
dst_x_off),
(box[i].y2 +
dst_y_off),
GL_COLOR_BUFFER_BIT,
GL_NEAREST);
} else {
int flip_dst_y1 =
dst_pixmap->drawable.height - (box[i].y2 +
dst_y_off);
int flip_dst_y2 =
dst_pixmap->drawable.height - (box[i].y1 +
dst_y_off);
int flip_src_y1 =
src_pixmap->drawable.height - (box[i].y2 +
src_y_off);
int flip_src_y2 =
src_pixmap->drawable.height - (box[i].y1 +
src_y_off);
dispatch->glBlitFramebuffer(box[i].x1 + dx +
src_x_off,
flip_src_y1,
box[i].x2 + dx +
src_x_off,
flip_src_y2,
box[i].x1 +
dst_x_off,
flip_dst_y1,
box[i].x2 +
dst_x_off,
flip_dst_y2,
GL_COLOR_BUFFER_BIT,
GL_NEAREST);
}
}
glamor_put_dispatch(glamor_priv);
glamor_priv->state = BLIT_STATE;
return TRUE;
}
static Bool
_glamor_upload_bits_to_pixmap_texture(PixmapPtr pixmap, GLenum format,
GLenum type, int no_alpha, int revert,
int swap_rb, int x, int y, int w, int h,
int stride, void *bits, int pbo)
{
ScreenPtr screen = pixmap->drawable.pScreen;
glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
glamor_screen_private *glamor_priv =
glamor_get_screen_private(pixmap->drawable.pScreen);
static float vertices[8];
static float texcoords_inv[8] = { 0, 0,
1, 0,
1, 1,
0, 1
};
float *ptexcoords;
float dst_xscale, dst_yscale;
GLuint tex = 0;
int need_free_bits = 0;
if (bits == NULL)
goto ready_to_upload;
if (revert > REVERT_NORMAL) {
/* XXX if we are restoring the pixmap, then we may not need to allocate
* new buffer */
void *converted_bits;
if (pixmap->drawable.depth == 1)
stride = (((w * 8 + 7) / 8) + 3) & ~3;
converted_bits = xallocarray(h, stride);
if (converted_bits == NULL)
return FALSE;
bits = glamor_color_convert_to_bits(bits, converted_bits, w, h,
stride, no_alpha, revert, swap_rb);
if (bits == NULL) {
free(converted_bits);
ErrorF("Failed to convert pixmap no_alpha %d,"
"revert mode %d, swap mode %d\n", no_alpha, revert, swap_rb);
return FALSE;
}
no_alpha = 0;
revert = REVERT_NONE;
swap_rb = SWAP_NONE_UPLOADING;
need_free_bits = TRUE;
}
ready_to_upload:
/* Try fast path firstly, upload the pixmap to the texture attached
* to the fbo directly. */
if (no_alpha == 0
&& revert == REVERT_NONE && swap_rb == SWAP_NONE_UPLOADING
#ifdef WALKAROUND_LARGE_TEXTURE_MAP
&& glamor_pixmap_priv_is_small(pixmap_priv)
#endif
) {
int fbo_x_off, fbo_y_off;
assert(pixmap_priv->fbo->tex);
pixmap_priv_get_fbo_off(pixmap_priv, &fbo_x_off, &fbo_y_off);
assert(x + fbo_x_off >= 0 && y + fbo_y_off >= 0);
assert(x + fbo_x_off + w <= pixmap_priv->fbo->width);
assert(y + fbo_y_off + h <= pixmap_priv->fbo->height);
__glamor_upload_pixmap_to_texture(pixmap, &pixmap_priv->fbo->tex,
format, type,
x + fbo_x_off, y + fbo_y_off, w, h,
bits, pbo);
} else {
ptexcoords = texcoords_inv;
pixmap_priv_get_dest_scale(pixmap, pixmap_priv, &dst_xscale, &dst_yscale);
glamor_set_normalize_vcoords(pixmap_priv, dst_xscale,
dst_yscale,
x, y,
x + w, y + h,
vertices);
/* Slow path, we need to flip y or wire alpha to 1. */
glamor_make_current(glamor_priv);
glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
GL_FALSE, 2 * sizeof(float), vertices);
glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
GL_FALSE, 2 * sizeof(float), ptexcoords);
glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
glamor_set_destination_pixmap_priv_nc(glamor_priv, pixmap, pixmap_priv);
glamor_set_alu(screen, GXcopy);
__glamor_upload_pixmap_to_texture(pixmap, &tex,
format, type, 0, 0, w, h, bits, pbo);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glUseProgram(glamor_priv->finish_access_prog[no_alpha]);
glUniform1i(glamor_priv->finish_access_revert[no_alpha], revert);
glUniform1i(glamor_priv->finish_access_swap_rb[no_alpha], swap_rb);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
glDeleteTextures(1, &tex);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
if (need_free_bits)
free(bits);
return TRUE;
}
