glamor_pixmap_fbo * glamor_es2_pixmap_read_prepare(PixmapPtr source, int x, int y, int w, int h, GLenum format, GLenum type, int no_alpha, int revert, int swap_rb) { glamor_pixmap_private *source_priv; glamor_screen_private *glamor_priv; ScreenPtr screen; glamor_pixmap_fbo *temp_fbo; float temp_xscale, temp_yscale, source_xscale, source_yscale; static float vertices[8]; static float texcoords[8]; screen = source->drawable.pScreen; glamor_priv = glamor_get_screen_private(screen); source_priv = glamor_get_pixmap_private(source); temp_fbo = glamor_create_fbo(glamor_priv, w, h, format, 0); if (temp_fbo == NULL) return NULL; glamor_make_current(glamor_priv); temp_xscale = 1.0 / w; temp_yscale = 1.0 / h; glamor_set_normalize_vcoords((struct glamor_pixmap_private *) NULL, temp_xscale, temp_yscale, 0, 0, w, h, vertices); glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float), vertices); glEnableVertexAttribArray(GLAMOR_VERTEX_POS); pixmap_priv_get_scale(source_priv, &source_xscale, &source_yscale); glamor_set_normalize_tcoords(source_priv, source_xscale, source_yscale, x, y, x + w, y + h, texcoords); glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float), texcoords); glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE); glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, source_priv->base.fbo->tex); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glamor_set_destination_pixmap_fbo(temp_fbo, 0, 0, w, h); 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); return temp_fbo; }
PixmapPtr glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth, unsigned int usage) { PixmapPtr pixmap; glamor_pixmap_type_t type = GLAMOR_TEXTURE_ONLY; glamor_pixmap_private *pixmap_priv; glamor_screen_private *glamor_priv = glamor_get_screen_private(screen); glamor_pixmap_fbo *fbo = NULL; int pitch; GLenum format; if (w > 32767 || h > 32767) return NullPixmap; if ((usage == GLAMOR_CREATE_PIXMAP_CPU || (usage == CREATE_PIXMAP_USAGE_GLYPH_PICTURE && w <= 64 && h <= 64) || (w == 0 && h == 0) || !glamor_check_pixmap_fbo_depth(depth)) || (!GLAMOR_TEXTURED_LARGE_PIXMAP && !glamor_check_fbo_size(glamor_priv, w, h))) return fbCreatePixmap(screen, w, h, depth, usage); else pixmap = fbCreatePixmap(screen, 0, 0, depth, usage); pixmap_priv = calloc(1, sizeof(*pixmap_priv)); if (!pixmap_priv) { fbDestroyPixmap(pixmap); return fbCreatePixmap(screen, w, h, depth, usage); } glamor_set_pixmap_private(pixmap, pixmap_priv); if (usage == GLAMOR_CREATE_PIXMAP_MAP) type = GLAMOR_MEMORY_MAP; pixmap_priv->base.pixmap = pixmap; pixmap_priv->base.glamor_priv = glamor_priv; format = gl_iformat_for_pixmap(pixmap); pitch = (((w * pixmap->drawable.bitsPerPixel + 7) / 8) + 3) & ~3; screen->ModifyPixmapHeader(pixmap, w, h, 0, 0, pitch, NULL); if (usage == GLAMOR_CREATE_PIXMAP_NO_TEXTURE) { pixmap_priv->type = GLAMOR_TEXTURE_ONLY; pixmap_priv->base.box.x1 = 0; pixmap_priv->base.box.y1 = 0; pixmap_priv->base.box.x2 = w; pixmap_priv->base.box.y2 = h; return pixmap; } else if (type == GLAMOR_MEMORY_MAP || usage == GLAMOR_CREATE_NO_LARGE || glamor_check_fbo_size(glamor_priv, w, h)) { pixmap_priv->type = type; pixmap_priv->base.box.x1 = 0; pixmap_priv->base.box.y1 = 0; pixmap_priv->base.box.x2 = w; pixmap_priv->base.box.y2 = h; fbo = glamor_create_fbo(glamor_priv, w, h, format, usage); } else { int tile_size = glamor_priv->max_fbo_size; DEBUGF("Create LARGE pixmap %p width %d height %d, tile size %d\n", pixmap, w, h, tile_size); pixmap_priv->type = GLAMOR_TEXTURE_LARGE; fbo = glamor_create_fbo_array(glamor_priv, w, h, format, usage, tile_size, tile_size, pixmap_priv); } if (fbo == NULL) { fbDestroyPixmap(pixmap); free(pixmap_priv); return fbCreatePixmap(screen, w, h, depth, usage); } glamor_pixmap_attach_fbo(pixmap, fbo); return pixmap; }