diff options
Diffstat (limited to 'xorg-server/glamor/glamor_rects.c')
| -rw-r--r-- | xorg-server/glamor/glamor_rects.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_rects.c b/xorg-server/glamor/glamor_rects.c new file mode 100644 index 000000000..7731edec4 --- /dev/null +++ b/xorg-server/glamor/glamor_rects.c @@ -0,0 +1,189 @@ +/* + * Copyright © 2014 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 the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS 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. + */ + +#include "glamor_priv.h" +#include "glamor_program.h" +#include "glamor_transform.h" + +static const glamor_facet glamor_facet_polyfillrect_130 = { + .name = "poly_fill_rect", + .version = 130, + .vs_vars = "attribute vec4 primitive;\n", + .vs_exec = (" vec2 pos = primitive.zw * vec2(gl_VertexID&1, (gl_VertexID&2)>>1);\n" + GLAMOR_POS(gl_Position, (primitive.xy + pos))), +}; + +static const glamor_facet glamor_facet_polyfillrect_120 = { + .name = "poly_fill_rect", + .vs_vars = "attribute vec2 primitive;\n", + .vs_exec = (" vec2 pos = vec2(0,0);\n" + GLAMOR_POS(gl_Position, primitive.xy)), +}; + +static Bool +glamor_poly_fill_rect_gl(DrawablePtr drawable, + GCPtr gc, int nrect, xRectangle *prect) +{ + 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; + glamor_program *prog; + int off_x, off_y; + GLshort *v; + char *vbo_offset; + int box_x, box_y; + + pixmap_priv = glamor_get_pixmap_private(pixmap); + if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) + goto bail; + + glamor_get_context(glamor_priv); + + if (glamor_priv->glsl_version >= 130) { + prog = glamor_use_program_fill(pixmap, gc, + &glamor_priv->poly_fill_rect_program, + &glamor_facet_polyfillrect_130); + + if (!prog) + goto bail_ctx; + + /* Set up the vertex buffers for the points */ + + v = glamor_get_vbo_space(drawable->pScreen, nrect * sizeof (xRectangle), &vbo_offset); + + glEnableVertexAttribArray(GLAMOR_VERTEX_POS); + glVertexAttribDivisor(GLAMOR_VERTEX_POS, 1); + glVertexAttribPointer(GLAMOR_VERTEX_POS, 4, GL_SHORT, GL_FALSE, + 4 * sizeof (short), vbo_offset); + + memcpy(v, prect, nrect * sizeof (xRectangle)); + + glamor_put_vbo_space(screen); + } else { + int n; + + prog = glamor_use_program_fill(pixmap, gc, + &glamor_priv->poly_fill_rect_program, + &glamor_facet_polyfillrect_120); + + if (!prog) + goto bail_ctx; + + /* Set up the vertex buffers for the points */ + + v = glamor_get_vbo_space(drawable->pScreen, nrect * 8 * sizeof (short), &vbo_offset); + + glEnableVertexAttribArray(GLAMOR_VERTEX_POS); + glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_SHORT, GL_FALSE, + 2 * sizeof (short), vbo_offset); + + for (n = 0; n < nrect; n++) { + v[0] = prect->x; v[1] = prect->y; + v[2] = prect->x; v[3] = prect->y + prect->height; + v[4] = prect->x + prect->width; v[5] = prect->y + prect->height; + v[6] = prect->x + prect->width; v[7] = prect->y; + prect++; + v += 8; + } + + glamor_put_vbo_space(screen); + } + + glEnable(GL_SCISSOR_TEST); + + glamor_pixmap_loop(pixmap_priv, box_x, box_y) { + int nbox = RegionNumRects(gc->pCompositeClip); + BoxPtr box = RegionRects(gc->pCompositeClip); + + glamor_set_destination_drawable(drawable, box_x, box_y, TRUE, FALSE, prog->matrix_uniform, &off_x, &off_y); + + while (nbox--) { + glScissor(box->x1 + off_x, + box->y1 + off_y, + box->x2 - box->x1, + box->y2 - box->y1); + box++; + if (glamor_priv->glsl_version >= 130) + glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, nrect); + else { + if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) { + glDrawArrays(GL_QUADS, 0, nrect * 4); + } else { + int i; + for (i = 0; i < nrect; i++) { + glDrawArrays(GL_TRIANGLE_FAN, i * 4, 4); + } + } + } + } + } + + glDisable(GL_SCISSOR_TEST); + glDisable(GL_COLOR_LOGIC_OP); + if (glamor_priv->glsl_version >= 130) + glVertexAttribDivisor(GLAMOR_VERTEX_POS, 0); + glDisableVertexAttribArray(GLAMOR_VERTEX_POS); + + glamor_put_context(glamor_priv); + return TRUE; +bail_ctx: + glDisable(GL_COLOR_LOGIC_OP); + glamor_put_context(glamor_priv); +bail: + return FALSE; +} + +static void +glamor_poly_fill_rect_bail(DrawablePtr drawable, + GCPtr gc, int nrect, xRectangle *prect) +{ + glamor_fallback("to %p (%c)\n", drawable, + glamor_get_drawable_location(drawable)); + if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW) && + glamor_prepare_access_gc(gc)) { + fbPolyFillRect(drawable, gc, nrect, prect); + } + glamor_finish_access_gc(gc); + glamor_finish_access(drawable); +} + +void +glamor_poly_fill_rect(DrawablePtr drawable, + GCPtr gc, int nrect, xRectangle *prect) +{ + if (glamor_poly_fill_rect_gl(drawable, gc, nrect, prect)) + return; + glamor_poly_fill_rect_bail(drawable, gc, nrect, prect); +} + +Bool +glamor_poly_fill_rect_nf(DrawablePtr drawable, + GCPtr gc, int nrect, xRectangle *prect) +{ + if (glamor_poly_fill_rect_gl(drawable, gc, nrect, prect)) + return TRUE; + if (glamor_ddx_fallback_check_pixmap(drawable) && glamor_ddx_fallback_check_gc(gc)) + return FALSE; + glamor_poly_fill_rect_bail(drawable, gc, nrect, prect); + return TRUE; +} |