diff options
Diffstat (limited to 'xorg-server/glamor/glamor_copy.c')
-rw-r--r-- | xorg-server/glamor/glamor_copy.c | 693 |
1 files changed, 693 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_copy.c b/xorg-server/glamor/glamor_copy.c new file mode 100644 index 000000000..bfcde43db --- /dev/null +++ b/xorg-server/glamor/glamor_copy.c @@ -0,0 +1,693 @@ +/* + * 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_transfer.h" +#include "glamor_prepare.h" +#include "glamor_transform.h" + +struct copy_args { + PixmapPtr src_pixmap; + glamor_pixmap_fbo *src; + uint32_t bitplane; + int dx, dy; +}; + +static Bool +use_copyarea(PixmapPtr dst, GCPtr gc, glamor_program *prog, void *arg) +{ + struct copy_args *args = arg; + glamor_pixmap_fbo *src = args->src; + + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, src->tex); + + glUniform2f(prog->fill_offset_uniform, args->dx, args->dy); + glUniform2f(prog->fill_size_uniform, src->width, src->height); + + return TRUE; +} + +static const glamor_facet glamor_facet_copyarea = { + "copy_area", + .vs_vars = "attribute vec2 primitive;\n", + .vs_exec = (GLAMOR_POS(gl_Position, primitive.xy) + " fill_pos = (fill_offset + primitive.xy) / fill_size;\n"), + .fs_exec = " gl_FragColor = texture2D(sampler, fill_pos);\n", + .locations = glamor_program_location_fill, + .use = use_copyarea, +}; + +/* + * Configure the copy plane program for the current operation + */ + +static Bool +use_copyplane(PixmapPtr dst, GCPtr gc, glamor_program *prog, void *arg) +{ + struct copy_args *args = arg; + glamor_pixmap_fbo *src = args->src; + + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, src->tex); + + glUniform2f(prog->fill_offset_uniform, args->dx, args->dy); + glUniform2f(prog->fill_size_uniform, src->width, src->height); + + glamor_set_color(dst, gc->fgPixel, prog->fg_uniform); + glamor_set_color(dst, gc->bgPixel, prog->bg_uniform); + + /* XXX handle 2 10 10 10 and 1555 formats; presumably the pixmap private knows this? */ + switch (args->src_pixmap->drawable.depth) { + case 24: + glUniform4ui(prog->bitplane_uniform, + (args->bitplane >> 16) & 0xff, + (args->bitplane >> 8) & 0xff, + (args->bitplane ) & 0xff, + 0); + + glUniform4f(prog->bitmul_uniform, 0xff, 0xff, 0xff, 0); + break; + case 32: + glUniform4ui(prog->bitplane_uniform, + (args->bitplane >> 16) & 0xff, + (args->bitplane >> 8) & 0xff, + (args->bitplane ) & 0xff, + (args->bitplane >> 24) & 0xff); + + glUniform4f(prog->bitmul_uniform, 0xff, 0xff, 0xff, 0xff); + break; + case 16: + glUniform4ui(prog->bitplane_uniform, + (args->bitplane >> 11) & 0x1f, + (args->bitplane >> 5) & 0x3f, + (args->bitplane ) & 0x1f, + 0); + + glUniform4f(prog->bitmul_uniform, 0x1f, 0x3f, 0x1f, 0); + break; + case 15: + glUniform4ui(prog->bitplane_uniform, + (args->bitplane >> 10) & 0x1f, + (args->bitplane >> 5) & 0x1f, + (args->bitplane ) & 0x1f, + 0); + + glUniform4f(prog->bitmul_uniform, 0x1f, 0x1f, 0x1f, 0); + break; + case 8: + glUniform4ui(prog->bitplane_uniform, + 0, 0, 0, args->bitplane); + glUniform4f(prog->bitmul_uniform, 0, 0, 0, 0xff); + break; + case 1: + glUniform4ui(prog->bitplane_uniform, + 0, 0, 0, args->bitplane); + glUniform4f(prog->bitmul_uniform, 0, 0, 0, 0xff); + break; + } + + return TRUE; +} + +static const glamor_facet glamor_facet_copyplane = { + "copy_plane", + .version = 130, + .vs_vars = "attribute vec2 primitive;\n", + .vs_exec = (GLAMOR_POS(gl_Position, (primitive.xy)) + " fill_pos = (fill_offset + primitive.xy) / fill_size;\n"), + .fs_exec = (" uvec4 bits = uvec4(round(texture2D(sampler, fill_pos) * bitmul));\n" + " if ((bits & bitplane) != uvec4(0,0,0,0))\n" + " gl_FragColor = fg;\n" + " else\n" + " gl_FragColor = bg;\n"), + .locations = glamor_program_location_fill|glamor_program_location_fg|glamor_program_location_bg|glamor_program_location_bitplane, + .use = use_copyplane, +}; + +/* + * When all else fails, pull the bits out of the GPU and do the + * operation with fb + */ + +static void +glamor_copy_bail(DrawablePtr src, + DrawablePtr dst, + GCPtr gc, + BoxPtr box, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure) +{ + if (glamor_prepare_access(dst, GLAMOR_ACCESS_RW) && glamor_prepare_access(src, GLAMOR_ACCESS_RO)) { + if (bitplane) { + if (src->bitsPerPixel > 1) + fbCopyNto1(src, dst, gc, box, nbox, dx, dy, + reverse, upsidedown, bitplane, closure); + else + fbCopy1toN(src, dst, gc, box, nbox, dx, dy, + reverse, upsidedown, bitplane, closure); + } else { + fbCopyNtoN(src, dst, gc, box, nbox, dx, dy, + reverse, upsidedown, bitplane, closure); + } + } + glamor_finish_access(dst); + glamor_finish_access(src); +} + +/** + * Implements CopyPlane and CopyArea from the GPU to the GPU by using + * the source as a texture and painting that into the destination. + * + * This requires that source and dest are different textures, or that + * (if the copy area doesn't overlap), GL_NV_texture_barrier is used + * to ensure that the caches are flushed at the right times. + */ +static Bool +glamor_copy_cpu_fbo(DrawablePtr src, + DrawablePtr dst, + GCPtr gc, + BoxPtr box, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure) +{ + ScreenPtr screen = dst->pScreen; + glamor_screen_private *glamor_priv = glamor_get_screen_private(screen); + PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst); + FbBits *src_bits; + FbStride src_stride; + int src_bpp; + int src_xoff, src_yoff; + int dst_xoff, dst_yoff; + + if (gc && gc->alu != GXcopy) + goto bail; + + if (gc && !glamor_pm_is_solid(dst, gc->planemask)) + goto bail; + + glamor_make_current(glamor_priv); + glamor_prepare_access(src, GLAMOR_ACCESS_RO); + + glamor_get_drawable_deltas(dst, dst_pixmap, &dst_xoff, &dst_yoff); + + fbGetDrawable(src, src_bits, src_stride, src_bpp, src_xoff, src_yoff); + + glamor_upload_boxes(dst_pixmap, box, nbox, src_xoff + dx, src_yoff + dy, + dst_xoff, dst_yoff, + (uint8_t *) src_bits, src_stride * sizeof (FbBits)); + glamor_finish_access(src); + + return TRUE; + +bail: + return FALSE; +} + +/* + * Copy from GPU to GPU by using the source + * as a texture and painting that into the destination + */ + +static Bool +glamor_copy_fbo_fbo_draw(DrawablePtr src, + DrawablePtr dst, + GCPtr gc, + BoxPtr box, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure) +{ + ScreenPtr screen = dst->pScreen; + glamor_screen_private *glamor_priv = glamor_get_screen_private(screen); + PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src); + PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst); + glamor_pixmap_private *src_priv = glamor_get_pixmap_private(src_pixmap); + glamor_pixmap_private *dst_priv = glamor_get_pixmap_private(dst_pixmap); + int src_box_x, src_box_y, dst_box_x, dst_box_y; + int dst_off_x, dst_off_y; + int src_off_x, src_off_y; + GLshort *v; + char *vbo_offset; + struct copy_args args; + glamor_program *prog; + const glamor_facet *copy_facet; + Bool set_scissor; + int n; + + glamor_make_current(glamor_priv); + + if (gc && !glamor_set_planemask(dst_pixmap, gc->planemask)) + goto bail_ctx; + + if (!glamor_set_alu(screen, gc ? gc->alu : GXcopy)) + goto bail_ctx; + + if (bitplane) { + prog = &glamor_priv->copy_plane_prog; + copy_facet = &glamor_facet_copyplane; + } else { + prog = &glamor_priv->copy_area_prog; + copy_facet = &glamor_facet_copyarea; + } + + if (prog->failed) + goto bail_ctx; + + if (!prog->prog) { + if (!glamor_build_program(screen, prog, + copy_facet, NULL)) + goto bail_ctx; + } + + args.src_pixmap = src_pixmap; + args.bitplane = bitplane; + + /* Set up the vertex buffers for the points */ + + v = glamor_get_vbo_space(dst->pScreen, nbox * 8 * sizeof (int16_t), &vbo_offset); + + glEnableVertexAttribArray(GLAMOR_VERTEX_POS); + glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_SHORT, GL_FALSE, + 2 * sizeof (GLshort), vbo_offset); + + for (n = 0; n < nbox; n++) { + v[0] = box->x1; v[1] = box->y1; + v[2] = box->x1; v[3] = box->y2; + v[4] = box->x2; v[5] = box->y2; + v[6] = box->x2; v[7] = box->y1; + v += 8; + box++; + } + + glamor_put_vbo_space(screen); + + glamor_get_drawable_deltas(src, src_pixmap, &src_off_x, &src_off_y); + + set_scissor = src_priv->type == GLAMOR_TEXTURE_LARGE; + if (set_scissor) + glEnable(GL_SCISSOR_TEST); + + glamor_pixmap_loop(src_priv, src_box_x, src_box_y) { + BoxPtr src_box = glamor_pixmap_box_at(src_priv, src_box_x, src_box_y); + + args.dx = dx + src_off_x - src_box->x1; + args.dy = dy + src_off_y - src_box->y1; + args.src = glamor_pixmap_fbo_at(src_priv, src_box_x, src_box_y); + + if (!glamor_use_program(dst_pixmap, gc, prog, &args)) + goto bail_ctx; + + glamor_pixmap_loop(dst_priv, dst_box_x, dst_box_y) { + glamor_set_destination_drawable(dst, dst_box_x, dst_box_y, FALSE, FALSE, + prog->matrix_uniform, &dst_off_x, &dst_off_y); + + if (set_scissor) + glScissor(dst_off_x - args.dx, + dst_off_y - args.dy, + src_box->x2 - src_box->x1, + src_box->y2 - src_box->y1); + + if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) + glDrawArrays(GL_QUADS, 0, nbox * 4); + else { + int i; + for (i = 0; i < nbox; i++) + glDrawArrays(GL_TRIANGLE_FAN, i*4, 4); + } + } + } + if (set_scissor) + glDisable(GL_SCISSOR_TEST); + glDisableVertexAttribArray(GLAMOR_VERTEX_POS); + + glDisable(GL_COLOR_LOGIC_OP); + return TRUE; + +bail_ctx: + glDisable(GL_COLOR_LOGIC_OP); + return FALSE; +} + +/** + * Copies from the GPU to the GPU using a temporary pixmap in between, + * to correctly handle overlapping copies. + */ + +static Bool +glamor_copy_fbo_fbo_temp(DrawablePtr src, + DrawablePtr dst, + GCPtr gc, + BoxPtr box, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure) +{ + ScreenPtr screen = dst->pScreen; + glamor_screen_private *glamor_priv = glamor_get_screen_private(screen); + PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst); + PixmapPtr tmp_pixmap; + BoxRec bounds; + int n; + BoxPtr tmp_box; + + if (nbox == 0) + return TRUE; + + /* Sanity check state to avoid getting halfway through and bailing + * at the last second. Might be nice to have checks that didn't + * involve setting state. + */ + glamor_make_current(glamor_priv); + + if (gc && !glamor_set_planemask(dst_pixmap, gc->planemask)) + goto bail_ctx; + + if (!glamor_set_alu(screen, gc ? gc->alu : GXcopy)) + goto bail_ctx; + glDisable(GL_COLOR_LOGIC_OP); + + /* Find the size of the area to copy + */ + bounds = box[0]; + for (n = 1; n < nbox; n++) { + bounds.x1 = min(bounds.x1, box[n].x1); + bounds.x2 = max(bounds.x2, box[n].x2); + bounds.y1 = min(bounds.y1, box[n].y1); + bounds.y2 = max(bounds.y2, box[n].y2); + } + + /* Allocate a suitable temporary pixmap + */ + tmp_pixmap = glamor_create_pixmap(screen, + bounds.x2 - bounds.x1, + bounds.y2 - bounds.y1, + src->depth, 0); + if (!tmp_pixmap) + goto bail; + + tmp_box = calloc(nbox, sizeof (BoxRec)); + if (!tmp_box) + goto bail_pixmap; + + /* Convert destination boxes into tmp pixmap boxes + */ + for (n = 0; n < nbox; n++) { + tmp_box[n].x1 = box[n].x1 - bounds.x1; + tmp_box[n].x2 = box[n].x2 - bounds.x1; + tmp_box[n].y1 = box[n].y1 - bounds.y1; + tmp_box[n].y2 = box[n].y2 - bounds.y1; + } + + if (!glamor_copy_fbo_fbo_draw(src, + &tmp_pixmap->drawable, + NULL, + tmp_box, + nbox, + dx + bounds.x1, + dy + bounds.y1, + FALSE, FALSE, + 0, NULL)) + goto bail_box; + + if (!glamor_copy_fbo_fbo_draw(&tmp_pixmap->drawable, + dst, + gc, + box, + nbox, + -bounds.x1, + -bounds.y1, + FALSE, FALSE, + bitplane, closure)) + goto bail_box; + + free(tmp_box); + + glamor_destroy_pixmap(tmp_pixmap); + + return TRUE; +bail_box: + free(tmp_box); +bail_pixmap: + glamor_destroy_pixmap(tmp_pixmap); +bail: + return FALSE; + +bail_ctx: + glDisable(GL_COLOR_LOGIC_OP); + return FALSE; +} + +/** + * Returns TRUE if the copy has to be implemented with + * glamor_copy_fbo_fbo_temp() instead of glamor_copy_fbo_fbo(). + * + * If the src and dst are in the same pixmap, then glamor_copy_fbo_fbo()'s + * sampling would give undefined results (since the same texture would be + * bound as an FBO destination and as a texture source). However, if we + * have GL_NV_texture_barrier, we can take advantage of the exception it + * added: + * + * "- If a texel has been written, then in order to safely read the result + * a texel fetch must be in a subsequent Draw separated by the command + * + * void TextureBarrierNV(void); + * + * TextureBarrierNV() will guarantee that writes have completed and caches + * have been invalidated before subsequent Draws are executed." + */ +static Bool +glamor_copy_needs_temp(DrawablePtr src, + DrawablePtr dst, + BoxPtr box, + int nbox, + int dx, + int dy) +{ + PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src); + PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst); + ScreenPtr screen = dst->pScreen; + glamor_screen_private *glamor_priv = glamor_get_screen_private(screen); + int n; + int dst_off_x, dst_off_y; + int src_off_x, src_off_y; + BoxRec bounds; + + if (src_pixmap != dst_pixmap) + return FALSE; + + if (nbox == 0) + return FALSE; + + if (!glamor_priv->has_nv_texture_barrier) + return TRUE; + + glamor_get_drawable_deltas(src, src_pixmap, &src_off_x, &src_off_y); + glamor_get_drawable_deltas(dst, dst_pixmap, &dst_off_x, &dst_off_y); + + bounds = box[0]; + for (n = 1; n < nbox; n++) { + bounds.x1 = min(bounds.x1, box[n].x1); + bounds.y1 = min(bounds.y1, box[n].y1); + + bounds.x2 = max(bounds.x2, box[n].x2); + bounds.y2 = max(bounds.y2, box[n].y2); + } + + /* Check to see if the pixmap-relative boxes overlap in both X and Y, + * in which case we can't rely on NV_texture_barrier and must + * make a temporary copy + * + * dst.x1 < src.x2 && + * src.x1 < dst.x2 && + * + * dst.y1 < src.y2 && + * src.y1 < dst.y2 + */ + if (bounds.x1 + dst_off_x < bounds.x2 + dx + src_off_x && + bounds.x1 + dx + src_off_x < bounds.x2 + dst_off_x && + + bounds.y1 + dst_off_y < bounds.y2 + dy + src_off_y && + bounds.y1 + dy + src_off_y < bounds.y2 + dst_off_y) { + return TRUE; + } + + glTextureBarrierNV(); + + return FALSE; +} + +static Bool +glamor_copy_gl(DrawablePtr src, + DrawablePtr dst, + GCPtr gc, + BoxPtr box, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure) +{ + PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src); + PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst); + glamor_pixmap_private *src_priv = glamor_get_pixmap_private(src_pixmap); + glamor_pixmap_private *dst_priv = glamor_get_pixmap_private(dst_pixmap); + + if (GLAMOR_PIXMAP_PRIV_HAS_FBO(dst_priv)) { + if (GLAMOR_PIXMAP_PRIV_HAS_FBO(src_priv)) { + if (glamor_copy_needs_temp(src, dst, box, nbox, dx, dy)) + return glamor_copy_fbo_fbo_temp(src, dst, gc, box, nbox, dx, dy, + reverse, upsidedown, bitplane, closure); + else + return glamor_copy_fbo_fbo_draw(src, dst, gc, box, nbox, dx, dy, + reverse, upsidedown, bitplane, closure); + } + if (bitplane == 0) + return glamor_copy_cpu_fbo(src, dst, gc, box, nbox, dx, dy, + reverse, upsidedown, bitplane, closure); + } + return FALSE; +} + +void +glamor_copy(DrawablePtr src, + DrawablePtr dst, + GCPtr gc, + BoxPtr box, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure) +{ + if (glamor_copy_gl(src, dst, gc, box, nbox, dx, dy, reverse, upsidedown, bitplane, closure)) + return; + glamor_copy_bail(src, dst, gc, box, nbox, dx, dy, reverse, upsidedown, bitplane, closure); +} + +RegionPtr +glamor_copy_area(DrawablePtr src, DrawablePtr dst, GCPtr gc, + int srcx, int srcy, int width, int height, int dstx, int dsty) +{ + return miDoCopy(src, dst, gc, + srcx, srcy, width, height, + dstx, dsty, glamor_copy, 0, NULL); +} + +RegionPtr +glamor_copy_plane(DrawablePtr src, DrawablePtr dst, GCPtr gc, + int srcx, int srcy, int width, int height, int dstx, int dsty, + unsigned long bitplane) +{ + if ((bitplane & FbFullMask(src->depth)) == 0) + return miHandleExposures(src, dst, gc, + srcx, srcy, width, height, dstx, dsty, + bitplane); + return miDoCopy(src, dst, gc, + srcx, srcy, width, height, + dstx, dsty, glamor_copy, bitplane, NULL); +} + +void +glamor_copy_window(WindowPtr window, DDXPointRec old_origin, RegionPtr src_region) +{ + PixmapPtr pixmap = glamor_get_drawable_pixmap(&window->drawable); + DrawablePtr drawable = &pixmap->drawable; + RegionRec dst_region; + int dx, dy; + + dx = old_origin.x - window->drawable.x; + dy = old_origin.y - window->drawable.y; + RegionTranslate(src_region, -dx, -dy); + + RegionNull(&dst_region); + + RegionIntersect(&dst_region, &window->borderClip, src_region); + +#ifdef COMPOSITE + if (pixmap->screen_x || pixmap->screen_y) + RegionTranslate(&dst_region, -pixmap->screen_x, -pixmap->screen_y); +#endif + + miCopyRegion(drawable, drawable, + 0, &dst_region, dx, dy, glamor_copy, 0, 0); + + RegionUninit(&dst_region); +} + +Bool +glamor_copy_n_to_n_nf(DrawablePtr src, + DrawablePtr dst, + GCPtr gc, + BoxPtr box, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, Pixel bitplane, + void *closure) +{ + if (glamor_copy_gl(src, dst, gc, box, nbox, dx, dy, reverse, upsidedown, bitplane, closure)) + return TRUE; + if (glamor_ddx_fallback_check_pixmap(src) && glamor_ddx_fallback_check_pixmap(dst)) + return FALSE; + glamor_copy_bail(src, dst, gc, box, nbox, dx, dy, reverse, upsidedown, bitplane, closure); + return TRUE; +} + +Bool +glamor_copy_plane_nf(DrawablePtr src, DrawablePtr dst, GCPtr gc, + int srcx, int srcy, int w, int h, int dstx, int dsty, + unsigned long bitplane, RegionPtr *region) +{ + if (glamor_ddx_fallback_check_pixmap(src) && + glamor_ddx_fallback_check_pixmap(dst) && + glamor_ddx_fallback_check_gc(gc)) + return FALSE; + + *region = glamor_copy_plane(src, dst, gc, + srcx, srcy, w, h, dstx, dsty, + bitplane); + return TRUE; +} |