diff options
Diffstat (limited to 'src/glamor_glyphblt.c')
| -rw-r--r-- | src/glamor_glyphblt.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/glamor_glyphblt.c b/src/glamor_glyphblt.c index b55327c..35be282 100644 --- a/src/glamor_glyphblt.c +++ b/src/glamor_glyphblt.c @@ -89,15 +89,132 @@ glamor_poly_glyph_blt_nf(DrawablePtr pDrawable, GCPtr pGC, } static Bool +glamor_push_pixels_points(GCPtr gc, PixmapPtr bitmap, + DrawablePtr drawable, int w, int h, int x, int y) +{ + ScreenPtr screen = drawable->pScreen; + glamor_screen_private *glamor_priv = glamor_get_screen_private(screen); + PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable); + glamor_pixmap_private *pixmap_priv; + uint8_t *bitmap_data = bitmap->devPrivate.ptr; + int bitmap_stride = bitmap->devKind; + int off_x, off_y; + int yy, xx; + GLfloat xscale, yscale; + float color[4]; + unsigned long fg_pixel = gc->fgPixel; + float *points, *next_point; + int num_points = 0; + char *vbo_offset; + RegionPtr clip; + glamor_gl_dispatch *dispatch; + + if (w * h > MAXINT / (2 * sizeof(float))) + return FALSE; + + if (gc->fillStyle != FillSolid) { + glamor_fallback("gc fillstyle not solid\n"); + return FALSE; + } + + pixmap_priv = glamor_get_pixmap_private(pixmap); + if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) + return FALSE; + + dispatch = glamor_get_dispatch(glamor_priv); + if (!glamor_set_alu(dispatch, gc->alu)) { + if (gc->alu == GXclear) + fg_pixel = 0; + else { + glamor_fallback("unsupported alu %x\n", gc->alu); + glamor_put_dispatch(glamor_priv); + return FALSE; + } + } + + if (!glamor_set_planemask(pixmap, gc->planemask)) { + glamor_fallback("Failed to set planemask in %s.\n", __FUNCTION__); + glamor_put_dispatch(glamor_priv); + return FALSE; + } + + glamor_get_drawable_deltas(drawable, pixmap, &off_x, &off_y); + + glamor_set_destination_pixmap_priv_nc(pixmap_priv); + pixmap_priv_get_dest_scale(pixmap_priv, &xscale, &yscale); + + dispatch->glUseProgram(glamor_priv->solid_prog); + + glamor_get_rgba_from_pixel(fg_pixel, + &color[0], &color[1], &color[2], &color[3], + format_for_pixmap(pixmap)); + dispatch->glUniform4fv(glamor_priv->solid_color_uniform_location, 1, color); + + points = glamor_get_vbo_space(screen, w * h * sizeof(float) * 2, + &vbo_offset); + next_point = points; + + clip = fbGetCompositeClip(gc); + + /* Note that because fb sets miTranslate in the GC, our incoming X + * and Y are in screen coordinate space (same for spans, but not + * other operations). + */ + for (yy = 0; yy < h; yy++) { + uint8_t *bitmap_row = bitmap_data + yy * bitmap_stride; + for (xx = 0; xx < w; xx++) { + if (bitmap_row[xx / 8] & (1 << xx % 8) && + RegionContainsPoint(clip, + x + xx, + y + yy, + NULL)) { + next_point[0] = v_from_x_coord_x(xscale, x + xx + off_x + 0.5); + if (glamor_priv->yInverted) + next_point[1] = v_from_x_coord_y_inverted(yscale, y + yy + off_y + 0.5); + else + next_point[1] = v_from_x_coord_y(yscale, y + yy + off_y + 0.5); + + next_point += 2; + num_points++; + } + } + } + glamor_put_vbo_space(screen); + + dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, + GL_FALSE, 2 * sizeof(float), + vbo_offset); + dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS); + + dispatch->glDrawArrays(GL_POINTS, 0, num_points); + + dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS); + dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0); + dispatch->glUseProgram(0); + + glamor_put_dispatch(glamor_priv); + + return TRUE; +} + +static Bool _glamor_push_pixels(GCPtr pGC, PixmapPtr pBitmap, DrawablePtr pDrawable, int w, int h, int x, int y, Bool fallback) { + glamor_pixmap_private *pixmap_priv; + if (!fallback && glamor_ddx_fallback_check_pixmap(pDrawable) && glamor_ddx_fallback_check_pixmap(&pBitmap->drawable) && glamor_ddx_fallback_check_gc(pGC)) return FALSE; + pixmap_priv = glamor_get_pixmap_private(pBitmap); + if (pixmap_priv->type == GLAMOR_MEMORY) { + if (glamor_push_pixels_points(pGC, pBitmap, pDrawable, w, h, x, y)) + return TRUE; + } + miPushPixels(pGC, pBitmap, pDrawable, w, h, x, y); return TRUE; } |