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Diffstat (limited to 'xorg-server/glamor/glamor_spans.c')
-rw-r--r--xorg-server/glamor/glamor_spans.c438
1 files changed, 438 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_spans.c b/xorg-server/glamor/glamor_spans.c
new file mode 100644
index 000000000..98842cdde
--- /dev/null
+++ b/xorg-server/glamor/glamor_spans.c
@@ -0,0 +1,438 @@
+/*
+ * 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_transform.h"
+#include "glamor_transfer.h"
+
+glamor_program fill_spans_progs[4];
+
+static const glamor_facet glamor_facet_fillspans_130 = {
+ .name = "fill_spans",
+ .version = 130,
+ .vs_vars = "attribute vec3 primitive;\n",
+ .vs_exec = (" vec2 pos = vec2(primitive.z,1) * vec2(gl_VertexID&1, (gl_VertexID&2)>>1);\n"
+ GLAMOR_POS(gl_Position, (primitive.xy + pos))),
+};
+
+static const glamor_facet glamor_facet_fillspans_120 = {
+ .name = "fill_spans",
+ .vs_vars = "attribute vec2 primitive;\n",
+ .vs_exec = (" vec2 pos = vec2(0,0);\n"
+ GLAMOR_POS(gl_Position, primitive.xy)),
+};
+
+static Bool
+glamor_fill_spans_gl(DrawablePtr drawable,
+ GCPtr gc,
+ int n, DDXPointPtr points, int *widths, int sorted)
+{
+ 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 c;
+ 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->fill_spans_program,
+ &glamor_facet_fillspans_130);
+
+ if (!prog)
+ goto bail_ctx;
+
+ /* Set up the vertex buffers for the points */
+
+ v = glamor_get_vbo_space(drawable->pScreen, n * (4 * sizeof (GLshort)), &vbo_offset);
+
+ glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+ glVertexAttribDivisor(GLAMOR_VERTEX_POS, 1);
+ glVertexAttribPointer(GLAMOR_VERTEX_POS, 3, GL_SHORT, GL_FALSE,
+ 4 * sizeof (GLshort), vbo_offset);
+
+ for (c = 0; c < n; c++) {
+ v[0] = points->x;
+ v[1] = points->y;
+ v[2] = *widths++;
+ points++;
+ v += 4;
+ }
+
+ glamor_put_vbo_space(screen);
+ } else {
+ prog = glamor_use_program_fill(pixmap, gc, &glamor_priv->fill_spans_program,
+ &glamor_facet_fillspans_120);
+
+ if (!prog)
+ goto bail_ctx;
+
+ /* Set up the vertex buffers for the points */
+
+ v = glamor_get_vbo_space(drawable->pScreen, n * 8 * sizeof (short), &vbo_offset);
+
+ glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+ glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_SHORT, GL_FALSE,
+ 2 * sizeof (short), vbo_offset);
+
+ for (c = 0; c < n; c++) {
+ v[0] = points->x; v[1] = points->y;
+ v[2] = points->x; v[3] = points->y + 1;
+ v[4] = points->x + *widths; v[5] = points->y + 1;
+ v[6] = points->x + *widths; v[7] = points->y;
+
+ widths++;
+ points++;
+ 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, FALSE, 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, n);
+ else {
+ if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
+ glDrawArrays(GL_QUADS, 0, 4 * n);
+ } else {
+ int i;
+ for (i = 0; i < n; 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_fill_spans_bail(DrawablePtr drawable,
+ GCPtr gc,
+ int n, DDXPointPtr points, int *widths, int sorted)
+{
+ if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW) &&
+ glamor_prepare_access_gc(gc)) {
+ fbFillSpans(drawable, gc, n, points, widths, sorted);
+ }
+ glamor_finish_access_gc(gc);
+ glamor_finish_access(drawable);
+}
+
+void
+glamor_fill_spans(DrawablePtr drawable,
+ GCPtr gc,
+ int n, DDXPointPtr points, int *widths, int sorted)
+{
+ if (glamor_fill_spans_gl(drawable, gc, n, points, widths, sorted))
+ return;
+ glamor_fill_spans_bail(drawable, gc, n, points, widths, sorted);
+}
+
+Bool
+glamor_fill_spans_nf(DrawablePtr drawable,
+ GCPtr gc,
+ int n, DDXPointPtr points, int *widths, int sorted)
+{
+ if (glamor_fill_spans_gl(drawable, gc, n, points, widths, sorted))
+ return TRUE;
+
+ if (glamor_ddx_fallback_check_pixmap(drawable) && glamor_ddx_fallback_check_gc(gc))
+ return FALSE;
+
+ glamor_fill_spans_bail(drawable, gc, n, points, widths, sorted);
+ return TRUE;
+}
+
+static Bool
+glamor_get_spans_gl(DrawablePtr drawable, int wmax,
+ DDXPointPtr points, int *widths, int count, char *dst)
+{
+ 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 box_x, box_y;
+ int n;
+ char *d;
+ GLenum type;
+ GLenum format;
+ int off_x, off_y;
+
+ pixmap_priv = glamor_get_pixmap_private(pixmap);
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+ goto bail;
+
+ glamor_get_drawable_deltas(drawable, pixmap, &off_x, &off_y);
+
+ glamor_format_for_pixmap(pixmap, &format, &type);
+
+ glamor_get_context(glamor_priv);
+
+ glamor_pixmap_loop(pixmap_priv, box_x, box_y) {
+ BoxPtr box = glamor_pixmap_box_at(pixmap_priv, box_x, box_y);
+ glamor_pixmap_fbo *fbo = glamor_pixmap_fbo_at(pixmap_priv, box_x, box_y);
+
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo->fb);
+ glPixelStorei(GL_PACK_ALIGNMENT, 4);
+
+ d = dst;
+ for (n = 0; n < count; n++) {
+ int x1 = points[n].x + off_x;
+ int y = points[n].y + off_y;
+ int w = widths[n];
+ int x2 = x1 + w;
+ char *l;
+
+ l = d;
+ d += PixmapBytePad(w, drawable->depth);
+
+ /* clip */
+ if (x1 < box->x1) {
+ l += (box->x1 - x1) * (drawable->bitsPerPixel >> 3);
+ x1 = box->x1;
+ }
+ if (x2 > box->x2)
+ x2 = box->x2;
+
+ if (x1 >= x2)
+ continue;
+ if (y < box->y1)
+ continue;
+ if (y >= box->y2)
+ continue;
+
+ glReadPixels(x1 - box->x1, y - box->y1, x2 - x1, 1, format, type, l);
+ }
+ }
+
+ glamor_put_context(glamor_priv);
+ return TRUE;
+bail:
+ return FALSE;
+}
+
+static void
+glamor_get_spans_bail(DrawablePtr drawable, int wmax,
+ DDXPointPtr points, int *widths, int count, char *dst)
+{
+ if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RO))
+ fbGetSpans(drawable, wmax, points, widths, count, dst);
+ glamor_finish_access(drawable);
+}
+
+void
+glamor_get_spans(DrawablePtr drawable, int wmax,
+ DDXPointPtr points, int *widths, int count, char *dst)
+{
+ if (glamor_get_spans_gl(drawable, wmax, points, widths, count, dst))
+ return;
+ glamor_get_spans_bail(drawable, wmax, points, widths, count, dst);
+}
+
+Bool
+glamor_get_spans_nf(DrawablePtr drawable, int wmax,
+ DDXPointPtr points, int *widths, int count, char *dst)
+{
+ if (glamor_get_spans_gl(drawable, wmax, points, widths, count, dst))
+ return TRUE;
+
+ if (glamor_ddx_fallback_check_pixmap(drawable))
+ return FALSE;
+
+ glamor_get_spans_bail(drawable, wmax, points, widths, count, dst);
+ return TRUE;
+}
+
+static Bool
+glamor_set_spans_gl(DrawablePtr drawable, GCPtr gc, char *src,
+ DDXPointPtr points, int *widths, int numPoints, int sorted)
+{
+ 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 box_x, box_y;
+ int n;
+ char *s;
+ GLenum type;
+ GLenum format;
+ int off_x, off_y;
+
+ pixmap_priv = glamor_get_pixmap_private(pixmap);
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+ goto bail;
+
+ if (gc->alu != GXcopy)
+ goto bail;
+
+ if (!glamor_pm_is_solid(&pixmap->drawable, gc->planemask))
+ goto bail;
+
+ glamor_get_drawable_deltas(drawable, pixmap, &off_x, &off_y);
+ glamor_format_for_pixmap(pixmap, &format, &type);
+
+ glamor_get_context(glamor_priv);
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+
+ glamor_pixmap_loop(pixmap_priv, box_x, box_y) {
+ BoxPtr box = glamor_pixmap_box_at(pixmap_priv, box_x, box_y);
+ glamor_pixmap_fbo *fbo = glamor_pixmap_fbo_at(pixmap_priv, box_x, box_y);
+
+ glActiveTexture(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_2D, fbo->tex);
+
+ s = src;
+ for (n = 0; n < numPoints; n++) {
+
+ BoxPtr clip_box = RegionRects(gc->pCompositeClip);
+ int nclip_box = RegionNumRects(gc->pCompositeClip);
+ int w = widths[n];
+ int y = points[n].y;
+ int x = points[n].x;
+
+ while (nclip_box--) {
+ int x1 = x;
+ int x2 = x + w;
+ int y1 = y;
+ char *l = s;
+
+ /* clip to composite clip */
+ if (x1 < clip_box->x1) {
+ l += (clip_box->x1 - x1) * (drawable->bitsPerPixel >> 3);
+ x1 = clip_box->x1;
+ }
+ if (x2 > clip_box->x2)
+ x2 = clip_box->x2;
+
+ if (y < clip_box->y1)
+ continue;
+ if (y >= clip_box->y2)
+ continue;
+
+ /* adjust to pixmap coordinates */
+ x1 += off_x;
+ x2 += off_x;
+ y1 += off_y;
+
+ if (x1 < box->x1) {
+ l += (box->x1 - x1) * (drawable->bitsPerPixel >> 3);
+ x1 = box->x1;
+ }
+ if (x2 > box->x2)
+ x2 = box->x2;
+
+ if (x1 >= x2)
+ continue;
+ if (y1 < box->y1)
+ continue;
+ if (y1 >= box->y2)
+ continue;
+
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ x1 - box->x1, y1 - box->y1, x2 - x1, 1,
+ format, type,
+ l);
+ }
+ s += PixmapBytePad(w, drawable->depth);
+ }
+ }
+
+ glamor_put_context(glamor_priv);
+ return TRUE;
+
+bail:
+ return FALSE;
+}
+
+static void
+glamor_set_spans_bail(DrawablePtr drawable, GCPtr gc, char *src,
+ DDXPointPtr points, int *widths, int numPoints, int sorted)
+{
+ if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW) && glamor_prepare_access_gc(gc))
+ fbSetSpans(drawable, gc, src, points, widths, numPoints, sorted);
+ glamor_finish_access_gc(gc);
+ glamor_finish_access(drawable);
+}
+
+void
+glamor_set_spans(DrawablePtr drawable, GCPtr gc, char *src,
+ DDXPointPtr points, int *widths, int numPoints, int sorted)
+{
+ if (glamor_set_spans_gl(drawable, gc, src, points, widths, numPoints, sorted))
+ return;
+ glamor_set_spans_bail(drawable, gc, src, points, widths, numPoints, sorted);
+}
+
+Bool
+glamor_set_spans_nf(DrawablePtr drawable, GCPtr gc, char *src,
+ DDXPointPtr points, int *widths, int numPoints, int sorted)
+{
+ if (glamor_set_spans_gl(drawable, gc, src, points, widths, numPoints, sorted))
+ return TRUE;
+
+ if (glamor_ddx_fallback_check_pixmap(drawable) && glamor_ddx_fallback_check_gc(gc))
+ return FALSE;
+
+ glamor_set_spans_bail(drawable, gc, src, points, widths, numPoints, sorted);
+ return TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 01:13:54 +0000