glamor: Drop dead glamor_download_pixmap_to_cpu()
Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Eric Anholt
parent
b6181007de
commit
98155bd9d9
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@ -923,26 +923,6 @@ glamor_put_bits(char *dst_bits, int dst_stride, char *src_bits,
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}
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}
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/*
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* download sub region from a large region.
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*/
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static void
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glamor_get_bits(char *dst_bits, int dst_stride, char *src_bits,
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int src_stride, int bpp, int x, int y, int w, int h)
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{
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int j;
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int byte_per_pixel;
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byte_per_pixel = bpp / 8;
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dst_bits += y * dst_stride + x * byte_per_pixel;
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for (j = y; j < y + h; j++) {
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memcpy(dst_bits, src_bits, w * byte_per_pixel);
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src_bits += src_stride;
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dst_bits += dst_stride;
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}
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}
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Bool
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glamor_upload_sub_pixmap_to_texture(PixmapPtr pixmap, int x, int y, int w,
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int h, int stride, void *bits, int pbo)
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@ -1160,300 +1140,6 @@ glamor_es2_pixmap_read_prepare(PixmapPtr source, int x, int y, int w, int h,
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return temp_fbo;
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}
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/*
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* Download a sub region of pixmap to a specified memory region.
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* The pixmap must have a valid FBO, otherwise return a NULL.
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* */
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static void *
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_glamor_download_sub_pixmap_to_cpu(PixmapPtr pixmap, GLenum format,
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GLenum type, int no_alpha,
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int revert, int swap_rb,
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int x, int y, int w, int h,
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int stride, void *bits, int pbo,
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glamor_access_t access)
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{
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glamor_pixmap_private *pixmap_priv;
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GLenum gl_access = 0, gl_usage = 0;
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void *data;
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(pixmap->drawable.pScreen);
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glamor_pixmap_fbo *temp_fbo = NULL;
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int need_post_conversion = 0;
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int need_free_data = 0;
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int fbo_x_off, fbo_y_off;
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data = bits;
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
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return NULL;
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switch (access) {
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case GLAMOR_ACCESS_RO:
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gl_access = GL_READ_ONLY;
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gl_usage = GL_STREAM_READ;
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break;
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case GLAMOR_ACCESS_RW:
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gl_access = GL_READ_WRITE;
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gl_usage = GL_DYNAMIC_DRAW;
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break;
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default:
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ErrorF("Glamor: Invalid access code. %d\n", access);
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assert(0);
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}
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glamor_make_current(glamor_priv);
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glamor_set_destination_pixmap_priv_nc(pixmap_priv);
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need_post_conversion = (revert > REVERT_NORMAL);
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if (need_post_conversion) {
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if (pixmap->drawable.depth == 1) {
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int temp_stride;
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temp_stride = (((w * 8 + 7) / 8) + 3) & ~3;
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data = malloc(temp_stride * h);
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if (data == NULL)
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return NULL;
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need_free_data = 1;
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}
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}
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pixmap_priv_get_fbo_off(pixmap_priv, &fbo_x_off, &fbo_y_off);
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if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
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&& !need_post_conversion
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&& (swap_rb != SWAP_NONE_DOWNLOADING || revert != REVERT_NONE)) {
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if (!(temp_fbo = glamor_es2_pixmap_read_prepare(pixmap, x, y, w, h,
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format, type, no_alpha,
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revert, swap_rb))) {
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free(data);
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return NULL;
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}
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x = 0;
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y = 0;
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fbo_x_off = 0;
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fbo_y_off = 0;
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}
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glPixelStorei(GL_PACK_ALIGNMENT, 4);
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if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP && data == NULL) {
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assert(pbo > 0);
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glBindBuffer(GL_PIXEL_PACK_BUFFER, pbo);
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glBufferData(GL_PIXEL_PACK_BUFFER, stride * h, NULL, gl_usage);
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}
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glReadPixels(x + fbo_x_off, y + fbo_y_off, w, h, format, type, data);
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if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP && bits == NULL) {
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bits = glMapBuffer(GL_PIXEL_PACK_BUFFER, gl_access);
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glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
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}
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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if (need_post_conversion) {
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/* As OpenGL desktop version never enters here.
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* Don't need to consider if the pbo is valid.*/
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bits = glamor_color_convert_to_bits(data, bits,
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w, h,
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stride, no_alpha, revert, swap_rb);
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}
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if (temp_fbo != NULL)
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glamor_destroy_fbo(temp_fbo);
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if (need_free_data)
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free(data);
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return bits;
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}
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void *
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glamor_download_sub_pixmap_to_cpu(PixmapPtr pixmap, int x, int y, int w, int h,
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int stride, void *bits, int pbo,
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glamor_access_t access)
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{
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GLenum format, type;
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int no_alpha, revert, swap_rb;
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glamor_pixmap_private *pixmap_priv;
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Bool force_clip;
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if (glamor_get_tex_format_type_from_pixmap(pixmap,
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&format,
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&type,
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&no_alpha,
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&revert, &swap_rb, 0)) {
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glamor_fallback("Unknown pixmap depth %d.\n", pixmap->drawable.depth);
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return NULL;
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}
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
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return NULL;
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force_clip = pixmap_priv->base.glamor_priv->gl_flavor != GLAMOR_GL_DESKTOP
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&& !glamor_check_fbo_size(pixmap_priv->base.glamor_priv, w, h);
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if (pixmap_priv->type == GLAMOR_TEXTURE_LARGE || force_clip) {
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RegionRec region;
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BoxRec box;
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int n_region;
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glamor_pixmap_clipped_regions *clipped_regions;
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void *sub_bits;
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int i, j;
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sub_bits = malloc(h * stride);
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if (sub_bits == NULL)
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return FALSE;
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box.x1 = x;
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box.y1 = y;
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box.x2 = x + w;
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box.y2 = y + h;
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RegionInitBoxes(®ion, &box, 1);
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if (!force_clip)
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clipped_regions =
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glamor_compute_clipped_regions(pixmap_priv, ®ion, &n_region,
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0, 0, 0);
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else
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clipped_regions =
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glamor_compute_clipped_regions_ext(pixmap_priv, ®ion,
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&n_region,
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pixmap_priv->large.block_w,
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pixmap_priv->large.block_h,
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0,
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0);
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DEBUGF("start download large pixmap %p %dx%d \n", pixmap, w, h);
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for (i = 0; i < n_region; i++) {
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BoxPtr boxes;
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int nbox;
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int temp_stride;
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void *temp_bits;
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assert(pbo == 0);
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SET_PIXMAP_FBO_CURRENT(pixmap_priv, clipped_regions[i].block_idx);
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boxes = RegionRects(clipped_regions[i].region);
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nbox = RegionNumRects(clipped_regions[i].region);
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for (j = 0; j < nbox; j++) {
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temp_stride = PixmapBytePad(boxes[j].x2 - boxes[j].x1,
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pixmap->drawable.depth);
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if (boxes[j].x1 == x && temp_stride == stride) {
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temp_bits = (char *) bits + (boxes[j].y1 - y) * stride;
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}
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else {
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temp_bits = sub_bits;
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}
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DEBUGF("download x %d y %d w %d h %d temp stride %d \n",
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boxes[j].x1, boxes[j].y1,
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boxes[j].x2 - boxes[j].x1,
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boxes[j].y2 - boxes[j].y1, temp_stride);
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/* For large pixmap, we don't support pbo currently. */
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assert(pbo == 0);
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if (_glamor_download_sub_pixmap_to_cpu
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(pixmap, format, type, no_alpha, revert, swap_rb,
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boxes[j].x1, boxes[j].y1, boxes[j].x2 - boxes[j].x1,
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boxes[j].y2 - boxes[j].y1, temp_stride, temp_bits, pbo,
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access) == FALSE) {
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RegionUninit(®ion);
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free(sub_bits);
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assert(0);
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return NULL;
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}
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if (boxes[j].x1 != x || temp_stride != stride)
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glamor_get_bits(bits, stride, temp_bits, temp_stride,
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pixmap->drawable.bitsPerPixel,
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boxes[j].x1 - x, boxes[j].y1 - y,
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boxes[j].x2 - boxes[j].x1,
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boxes[j].y2 - boxes[j].y1);
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}
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RegionDestroy(clipped_regions[i].region);
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}
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free(sub_bits);
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free(clipped_regions);
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RegionUninit(®ion);
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return bits;
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}
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else
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return _glamor_download_sub_pixmap_to_cpu(pixmap, format, type,
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no_alpha, revert, swap_rb, x,
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y, w, h, stride, bits, pbo,
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access);
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}
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/**
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* Move a pixmap to CPU memory.
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* The input data is the pixmap's fbo.
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* The output data is at pixmap->devPrivate.ptr. We always use pbo
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* to read the fbo and then map it to va. If possible, we will use
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* it directly as devPrivate.ptr.
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* If successfully download a fbo to cpu then return TRUE.
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* Otherwise return FALSE.
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**/
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Bool
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glamor_download_pixmap_to_cpu(PixmapPtr pixmap, glamor_access_t access)
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{
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glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
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unsigned int stride;
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void *data = NULL, *dst;
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(pixmap->drawable.pScreen);
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int pbo = 0;
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if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
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return TRUE;
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glamor_debug_output(GLAMOR_DEBUG_TEXTURE_DOWNLOAD,
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"Downloading pixmap %p %dx%d depth%d\n",
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pixmap,
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pixmap->drawable.width,
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pixmap->drawable.height, pixmap->drawable.depth);
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stride = pixmap->devKind;
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if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
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|| pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
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data = malloc(stride * pixmap->drawable.height);
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}
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else {
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glamor_make_current(glamor_priv);
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if (pixmap_priv->base.fbo->pbo == 0)
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glGenBuffers(1, &pixmap_priv->base.fbo->pbo);
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pbo = pixmap_priv->base.fbo->pbo;
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}
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if (pixmap_priv->type == GLAMOR_TEXTURE_DRM) {
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stride = PixmapBytePad(pixmap->drawable.width, pixmap->drawable.depth);
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pixmap_priv->base.drm_stride = pixmap->devKind;
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pixmap->devKind = stride;
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}
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dst = glamor_download_sub_pixmap_to_cpu(pixmap, 0, 0,
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pixmap->drawable.width,
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pixmap->drawable.height,
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pixmap->devKind, data, pbo, access);
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if (!dst) {
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if (data)
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free(data);
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return FALSE;
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}
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if (pbo != 0)
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pixmap_priv->base.fbo->pbo_valid = 1;
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pixmap_priv->base.gl_fbo = GLAMOR_FBO_DOWNLOADED;
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pixmap->devPrivate.ptr = dst;
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return TRUE;
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}
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/* fixup a fbo to the exact size as the pixmap. */
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/* XXX LARGE pixmap? */
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Bool
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@ -788,21 +788,6 @@ glamor_get_vbo_space(ScreenPtr screen, unsigned size, char **vbo_offset);
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void
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glamor_put_vbo_space(ScreenPtr screen);
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/**
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* Download a pixmap's texture to cpu memory. If success,
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* One copy of current pixmap's texture will be put into
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* the pixmap->devPrivate.ptr. Will use pbo to map to
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* the pointer if possible.
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* The pixmap must be a gl texture pixmap. gl_fbo must be GLAMOR_FBO_NORMAL and
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* gl_tex must be 1. Used by glamor_prepare_access.
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*
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*/
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Bool glamor_download_pixmap_to_cpu(PixmapPtr pixmap, glamor_access_t access);
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void *glamor_download_sub_pixmap_to_cpu(PixmapPtr pixmap, int x, int y, int w,
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int h, int stride, void *bits, int pbo,
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glamor_access_t access);
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/**
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* Restore a pixmap's data which is downloaded by
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* glamor_download_pixmap_to_cpu to its original
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