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-rw-r--r--xorg-server/glamor/glamor_fill.c364
1 files changed, 364 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_fill.c b/xorg-server/glamor/glamor_fill.c
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+++ b/xorg-server/glamor/glamor_fill.c
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+/*
+ * Copyright © 2008 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ * Zhigang Gong <zhigang.gong@linux.intel.com>
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_fillspans.c
+ *
+ * GC fill implementation, based loosely on fb_fill.c
+ */
+Bool
+glamor_fill(DrawablePtr drawable,
+ GCPtr gc, int x, int y, int width, int height, Bool fallback)
+{
+ PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(drawable);
+ int off_x, off_y;
+ PixmapPtr sub_pixmap = NULL;
+ glamor_access_t sub_pixmap_access;
+ DrawablePtr saved_drawable = NULL;
+ int saved_x = x, saved_y = y;
+
+ glamor_get_drawable_deltas(drawable, dst_pixmap, &off_x, &off_y);
+
+ switch (gc->fillStyle) {
+ case FillSolid:
+ if (!glamor_solid(dst_pixmap,
+ x + off_x,
+ y + off_y,
+ width, height, gc->alu, gc->planemask,
+ gc->fgPixel))
+ goto fail;
+ break;
+ case FillStippled:
+ case FillOpaqueStippled:
+ if (!glamor_stipple(dst_pixmap,
+ gc->stipple,
+ x + off_x,
+ y + off_y,
+ width,
+ height,
+ gc->alu,
+ gc->planemask,
+ gc->fgPixel,
+ gc->bgPixel, gc->patOrg.x,
+ gc->patOrg.y))
+ goto fail;
+ break;
+ case FillTiled:
+ if (!glamor_tile(dst_pixmap,
+ gc->tile.pixmap,
+ x + off_x,
+ y + off_y,
+ width,
+ height,
+ gc->alu,
+ gc->planemask,
+ x - drawable->x - gc->patOrg.x,
+ y - drawable->y - gc->patOrg.y))
+ goto fail;
+ break;
+ }
+ return TRUE;
+
+ fail:
+ if (!fallback) {
+ if (glamor_ddx_fallback_check_pixmap(&dst_pixmap->drawable)
+ && glamor_ddx_fallback_check_gc(gc))
+ return FALSE;
+ }
+ /* Is it possible to set the access as WO? */
+
+ sub_pixmap_access = GLAMOR_ACCESS_RW;
+
+ sub_pixmap = glamor_get_sub_pixmap(dst_pixmap, x + off_x,
+ y + off_y, width, height,
+ sub_pixmap_access);
+
+ if (sub_pixmap != NULL) {
+ if (gc->fillStyle != FillSolid) {
+ gc->patOrg.x += (drawable->x - x);
+ gc->patOrg.y += (drawable->y - y);
+ }
+ saved_drawable = drawable;
+ drawable = &sub_pixmap->drawable;
+ saved_x = x;
+ saved_y = y;
+ x = 0;
+ y = 0;
+ }
+ if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
+ if (glamor_prepare_access_gc(gc)) {
+ fbFill(drawable, gc, x, y, width, height);
+ glamor_finish_access_gc(gc);
+ }
+ glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
+ }
+
+ if (sub_pixmap != NULL) {
+ if (gc->fillStyle != FillSolid) {
+ gc->patOrg.x -= (saved_drawable->x - saved_x);
+ gc->patOrg.y -= (saved_drawable->y - saved_y);
+ }
+
+ x = saved_x;
+ y = saved_y;
+
+ glamor_put_sub_pixmap(sub_pixmap, dst_pixmap,
+ x + off_x, y + off_y,
+ width, height, sub_pixmap_access);
+ }
+
+ return TRUE;
+}
+
+void
+glamor_init_solid_shader(ScreenPtr screen)
+{
+ glamor_screen_private *glamor_priv;
+ glamor_gl_dispatch *dispatch;
+ const char *solid_vs =
+ "attribute vec4 v_position;"
+ "void main()\n" "{\n" " gl_Position = v_position;\n"
+ "}\n";
+ const char *solid_fs =
+ GLAMOR_DEFAULT_PRECISION "uniform vec4 color;\n"
+ "void main()\n" "{\n" " gl_FragColor = color;\n" "}\n";
+ GLint fs_prog, vs_prog;
+
+ glamor_priv = glamor_get_screen_private(screen);
+ dispatch = glamor_get_dispatch(glamor_priv);
+ glamor_priv->solid_prog = dispatch->glCreateProgram();
+ vs_prog = glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER, solid_vs);
+ fs_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+ solid_fs);
+ dispatch->glAttachShader(glamor_priv->solid_prog, vs_prog);
+ dispatch->glAttachShader(glamor_priv->solid_prog, fs_prog);
+
+ dispatch->glBindAttribLocation(glamor_priv->solid_prog,
+ GLAMOR_VERTEX_POS, "v_position");
+ glamor_link_glsl_prog(dispatch, glamor_priv->solid_prog);
+
+ glamor_priv->solid_color_uniform_location =
+ dispatch->glGetUniformLocation(glamor_priv->solid_prog,
+ "color");
+ glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_fini_solid_shader(ScreenPtr screen)
+{
+ glamor_screen_private *glamor_priv;
+ glamor_gl_dispatch *dispatch;
+
+ glamor_priv = glamor_get_screen_private(screen);
+ dispatch = glamor_get_dispatch(glamor_priv);
+ dispatch->glDeleteProgram(glamor_priv->solid_prog);
+ glamor_put_dispatch(glamor_priv);
+}
+
+static void
+_glamor_solid_boxes(PixmapPtr pixmap, BoxPtr box, int nbox, float *color)
+{
+ ScreenPtr screen = pixmap->drawable.pScreen;
+ glamor_screen_private *glamor_priv =
+ glamor_get_screen_private(screen);
+ glamor_pixmap_private *pixmap_priv =
+ glamor_get_pixmap_private(pixmap);
+ glamor_gl_dispatch *dispatch;
+ GLfloat xscale, yscale;
+ float vertices[32];
+ float *pvertices = vertices;
+ int valid_nbox = ARRAY_SIZE(vertices);
+
+ glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+
+ dispatch = glamor_get_dispatch(glamor_priv);
+ dispatch->glUseProgram(glamor_priv->solid_prog);
+
+ dispatch->glUniform4fv(glamor_priv->solid_color_uniform_location,
+ 1, color);
+
+ pixmap_priv_get_dest_scale(pixmap_priv, &xscale, &yscale);
+
+ if (unlikely(nbox*4*2 > ARRAY_SIZE(vertices))) {
+ int allocated_box;
+
+ if (nbox * 6 > GLAMOR_COMPOSITE_VBO_VERT_CNT) {
+ allocated_box = GLAMOR_COMPOSITE_VBO_VERT_CNT / 6;
+ } else
+ allocated_box = nbox;
+ pvertices = malloc(allocated_box * 4 * 2 * sizeof(float));
+ if (pvertices)
+ valid_nbox = allocated_box;
+ else {
+ pvertices = vertices;
+ valid_nbox = ARRAY_SIZE(vertices) / (4*2);
+ }
+ }
+
+ if (unlikely(nbox > 1))
+ dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+ GL_FALSE, 2 * sizeof(float),
+ pvertices);
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+
+ while(nbox) {
+ int box_cnt, i;
+ float *valid_vertices;
+ valid_vertices = pvertices;
+ box_cnt = nbox > valid_nbox ? valid_nbox : nbox;
+ for (i = 0; i < box_cnt; i++) {
+ glamor_set_normalize_vcoords(pixmap_priv, xscale, yscale,
+ box[i].x1, box[i].y1,
+ box[i].x2, box[i].y2,
+ glamor_priv->yInverted,
+ valid_vertices);
+ valid_vertices += 4*2;
+ }
+ if (box_cnt == 1)
+ dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, box_cnt * 4);
+ else
+#ifndef GLAMOR_GLES2
+ dispatch->glDrawRangeElements(GL_TRIANGLES,
+ 0,
+ box_cnt * 4,
+ box_cnt * 6,
+ GL_UNSIGNED_SHORT,
+ NULL);
+#else
+ dispatch->glDrawElements(GL_TRIANGLES,
+ box_cnt * 6,
+ GL_UNSIGNED_SHORT,
+ NULL);
+#endif
+ nbox -= box_cnt;
+ box += box_cnt;
+ }
+
+ if (pvertices != vertices)
+ free(pvertices);
+
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+ dispatch->glUseProgram(0);
+ glamor_put_dispatch(glamor_priv);
+ glamor_priv->state = RENDER_STATE;
+ glamor_priv->render_idle_cnt = 0;
+}
+
+Bool
+glamor_solid_boxes(PixmapPtr pixmap,
+ BoxPtr box, int nbox,
+ unsigned long fg_pixel)
+{
+ glamor_pixmap_private *pixmap_priv;
+ GLfloat color[4];
+
+ pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+ return FALSE;
+
+ glamor_get_rgba_from_pixel(fg_pixel,
+ &color[0],
+ &color[1],
+ &color[2],
+ &color[3], format_for_pixmap(pixmap));
+
+ if (pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+ RegionRec region;
+ int n_region;
+ glamor_pixmap_clipped_regions *clipped_regions;
+ int i;
+
+ RegionInitBoxes(&region, box, nbox);
+ clipped_regions = glamor_compute_clipped_regions(pixmap_priv, &region, &n_region, 0, 0, 0);
+ for(i = 0; i < n_region; i++)
+ {
+ BoxPtr inner_box;
+ int inner_nbox;
+ SET_PIXMAP_FBO_CURRENT(pixmap_priv, clipped_regions[i].block_idx);
+
+ inner_box = RegionRects(clipped_regions[i].region);
+ inner_nbox = RegionNumRects(clipped_regions[i].region);
+ _glamor_solid_boxes(pixmap, inner_box, inner_nbox, color);
+ RegionDestroy(clipped_regions[i].region);
+ }
+ free(clipped_regions);
+ RegionUninit(&region);
+ } else
+ _glamor_solid_boxes(pixmap, box, nbox, color);
+
+ return TRUE;
+}
+
+Bool
+glamor_solid(PixmapPtr pixmap, int x, int y, int width, int height,
+ unsigned char alu, unsigned long planemask,
+ unsigned long fg_pixel)
+{
+ ScreenPtr screen = pixmap->drawable.pScreen;
+ glamor_screen_private *glamor_priv =
+ glamor_get_screen_private(screen);
+ glamor_pixmap_private *pixmap_priv;
+ glamor_gl_dispatch *dispatch;
+ BoxRec box;
+
+ pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+ return FALSE;
+
+ if (!glamor_set_planemask(pixmap, planemask)) {
+ glamor_fallback
+ ("Failedto set planemask in glamor_solid.\n");
+ return FALSE;
+ }
+
+ dispatch = glamor_get_dispatch(glamor_priv);
+ if (!glamor_set_alu(dispatch, alu)) {
+ if (alu == GXclear)
+ fg_pixel = 0;
+ else {
+ glamor_fallback("unsupported alu %x\n", alu);
+ glamor_put_dispatch(glamor_priv);
+ return FALSE;
+ }
+ }
+ box.x1 = x;
+ box.y1 = y;
+ box.x2 = x + width;
+ box.y2 = y + height;
+ glamor_solid_boxes(pixmap, &box, 1, fg_pixel);
+
+ glamor_set_alu(dispatch, GXcopy);
+ glamor_put_dispatch(glamor_priv);
+
+ return TRUE;
+}
+
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