diff options
| -rw-r--r-- | src/glamor_glyphblt.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/glamor_glyphblt.c b/src/glamor_glyphblt.c index 35be282..ca92100 100644 --- a/src/glamor_glyphblt.c +++ b/src/glamor_glyphblt.c @@ -27,6 +27,143 @@ */ #include "glamor_priv.h" +#include <dixfontstr.h> + +static Bool +glamor_poly_glyph_blt_pixels(DrawablePtr drawable, GCPtr gc, + int x, int y, unsigned int nglyph, + CharInfoPtr *ppci) +{ + 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; + int off_x, off_y; + GLfloat xscale, yscale; + float color[4]; + unsigned long fg_pixel = gc->fgPixel; + char *vbo_offset; + RegionPtr clip; + int num_points, max_points; + float *points = NULL; + glamor_gl_dispatch *dispatch; + + x += drawable->x; + y += drawable->y; + + 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); + + clip = fbGetCompositeClip(gc); + + dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS); + + max_points = 500; + num_points = 0; + while (nglyph--) { + CharInfoPtr charinfo = *ppci++; + int w = GLYPHWIDTHPIXELS(charinfo); + int h = GLYPHHEIGHTPIXELS(charinfo); + uint8_t *glyphbits = FONTGLYPHBITS(NULL, charinfo); + + if (w && h) { + int glyph_x = x + charinfo->metrics.leftSideBearing; + int glyph_y = y - charinfo->metrics.ascent; + int glyph_stride = GLYPHWIDTHBYTESPADDED(charinfo); + int xx, yy; + + for (yy = 0; yy < h; yy++) { + uint8_t *glyph_row = glyphbits + glyph_stride * yy; + for (xx = 0; xx < w; xx++) { + int pt_x_i = glyph_x + xx; + int pt_y_i = glyph_y + yy; + float pt_x_f, pt_y_f; + if (!(glyph_row[xx / 8] & (1 << xx % 8))) + continue; + + if (!RegionContainsPoint(clip, pt_x_i, pt_y_i, NULL)) + continue; + + if (!num_points) { + points = glamor_get_vbo_space(screen, + max_points * 2 * sizeof(float), + &vbo_offset); + + dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, + GL_FALSE, 2 * sizeof(float), + vbo_offset); + } + + pt_x_f = v_from_x_coord_x(xscale, pt_x_i + off_x + 0.5); + if (glamor_priv->yInverted) + pt_y_f = v_from_x_coord_y_inverted(yscale, pt_y_i + off_y + 0.5); + else + pt_y_f = v_from_x_coord_y(yscale, pt_y_i + off_y + 0.5); + + points[num_points * 2 + 0] = pt_x_f; + points[num_points * 2 + 1] = pt_y_f; + num_points++; + + if (num_points == max_points) { + glamor_put_vbo_space(screen); + dispatch->glDrawArrays(GL_POINTS, 0, num_points); + num_points = 0; + } + } + } + } + + x += charinfo->metrics.characterWidth; + } + + if (num_points) { + glamor_put_vbo_space(screen); + 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_image_glyph_blt(DrawablePtr pDrawable, GCPtr pGC, @@ -63,6 +200,9 @@ _glamor_poly_glyph_blt(DrawablePtr pDrawable, GCPtr pGC, int x, int y, unsigned int nglyph, CharInfoPtr * ppci, pointer pglyphBase, Bool fallback) { + if (glamor_poly_glyph_blt_pixels(pDrawable, pGC, x, y, nglyph, ppci)) + return TRUE; + if (!fallback && glamor_ddx_fallback_check_pixmap(pDrawable) && glamor_ddx_fallback_check_gc(pGC)) |