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Diffstat (limited to 'xorg-server/glamor/glamor_trapezoid.c')
-rw-r--r--xorg-server/glamor/glamor_trapezoid.c128
1 files changed, 63 insertions, 65 deletions
diff --git a/xorg-server/glamor/glamor_trapezoid.c b/xorg-server/glamor/glamor_trapezoid.c
index 7bc925a25..0064f2a24 100644
--- a/xorg-server/glamor/glamor_trapezoid.c
+++ b/xorg-server/glamor/glamor_trapezoid.c
@@ -190,14 +190,44 @@ point_inside_trapezoid(int point[2], xTrapezoid *trap, xFixed cut_y)
}
static void
+glamor_emit_composite_vert(ScreenPtr screen,
+ float *vb,
+ const float *src_coords,
+ const float *mask_coords,
+ const float *dst_coords, int i)
+{
+ glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+ int j = 0;
+
+ vb += i * glamor_priv->vb_stride / sizeof(float);
+
+ vb[j++] = dst_coords[i * 2 + 0];
+ vb[j++] = dst_coords[i * 2 + 1];
+ if (glamor_priv->has_source_coords) {
+ vb[j++] = src_coords[i * 2 + 0];
+ vb[j++] = src_coords[i * 2 + 1];
+ }
+ if (glamor_priv->has_mask_coords) {
+ vb[j++] = mask_coords[i * 2 + 0];
+ vb[j++] = mask_coords[i * 2 + 1];
+ }
+
+ glamor_priv->render_nr_verts++;
+}
+
+static void
glamor_emit_composite_triangle(ScreenPtr screen,
+ float *vb,
const float *src_coords,
const float *mask_coords,
const float *dst_coords)
{
- glamor_emit_composite_vert(screen, src_coords, mask_coords, dst_coords, 0);
- glamor_emit_composite_vert(screen, src_coords, mask_coords, dst_coords, 1);
- glamor_emit_composite_vert(screen, src_coords, mask_coords, dst_coords, 2);
+ glamor_emit_composite_vert(screen, vb,
+ src_coords, mask_coords, dst_coords, 0);
+ glamor_emit_composite_vert(screen, vb,
+ src_coords, mask_coords, dst_coords, 1);
+ glamor_emit_composite_vert(screen, vb,
+ src_coords, mask_coords, dst_coords, 2);
}
static void
@@ -206,14 +236,7 @@ glamor_flush_composite_triangles(ScreenPtr screen)
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
glamor_get_context(glamor_priv);
- if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
- glUnmapBuffer(GL_ARRAY_BUFFER);
- else {
-
- glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
- glBufferData(GL_ARRAY_BUFFER, glamor_priv->vbo_offset,
- glamor_priv->vb, GL_DYNAMIC_DRAW);
- }
+ glamor_put_vbo_space(screen);
if (!glamor_priv->render_nr_verts)
return;
@@ -576,12 +599,14 @@ _glamor_clip_trapezoid_vertex(xTrapezoid *trap, BoxPtr pbox,
return TRUE;
}
-static void
+static void *
glamor_setup_composite_vbo_for_trapezoid(ScreenPtr screen, int n_verts)
{
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
int stride;
int vert_size;
+ char *vbo_offset;
+ void *vb;
glamor_priv->render_nr_verts = 0;
@@ -610,66 +635,43 @@ glamor_setup_composite_vbo_for_trapezoid(ScreenPtr screen, int n_verts)
glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
- glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
- if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
- if (glamor_priv->vbo_size < (glamor_priv->vbo_offset + vert_size)) {
- glamor_priv->vbo_size = GLAMOR_COMPOSITE_VBO_VERT_CNT *
- glamor_priv->vb_stride;
- glamor_priv->vbo_offset = 0;
- glBufferData(GL_ARRAY_BUFFER,
- glamor_priv->vbo_size, NULL, GL_STREAM_DRAW);
- }
-
- glamor_priv->vb = glMapBufferRange(GL_ARRAY_BUFFER,
- glamor_priv->vbo_offset,
- vert_size,
- GL_MAP_WRITE_BIT |
- GL_MAP_UNSYNCHRONIZED_BIT);
-
- assert(glamor_priv->vb != NULL);
- glamor_priv->vb -= glamor_priv->vbo_offset;
- }
- else {
- glamor_priv->vbo_offset = 0;
- }
+ vb = glamor_get_vbo_space(screen, vert_size, &vbo_offset);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
/* Set the vertex pointer. */
glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long) glamor_priv->vbo_offset));
+ vbo_offset);
glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
stride = 2;
glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long) glamor_priv->vbo_offset +
- stride * sizeof(float)));
+ vbo_offset + stride * sizeof(float));
glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
stride += 2;
glVertexAttribPointer(GLAMOR_VERTEX_TOP_BOTTOM, 2, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long) glamor_priv->vbo_offset +
- stride * sizeof(float)));
+ GL_FALSE, glamor_priv->vb_stride,
+ vbo_offset + stride * sizeof(float));
glEnableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
stride += 2;
glVertexAttribPointer(GLAMOR_VERTEX_LEFT_PARAM, 4, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long) glamor_priv->vbo_offset +
- stride * sizeof(float)));
+ GL_FALSE, glamor_priv->vb_stride,
+ vbo_offset + stride * sizeof(float));
glEnableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
stride += 4;
glVertexAttribPointer(GLAMOR_VERTEX_RIGHT_PARAM, 4, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long) glamor_priv->vbo_offset +
- stride * sizeof(float)));
+ GL_FALSE, glamor_priv->vb_stride,
+ vbo_offset + stride * sizeof(float));
glEnableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
glamor_put_context(glamor_priv);
+
+ return vb;
}
static Bool
@@ -862,6 +864,8 @@ _glamor_trapezoids_with_shader(CARD8 op,
nclip_rect = nbox;
while (nclip_rect) {
+ float *vb;
+
mclip_rect = (nclip_rect * ntrap * 4) > ntriangle_per_loop ?
(ntriangle_per_loop / (4 * ntrap)) : nclip_rect;
@@ -879,8 +883,9 @@ _glamor_trapezoids_with_shader(CARD8 op,
NTRAPS_LOOP_AGAIN:
- glamor_setup_composite_vbo(screen,
- mclip_rect * traps_count * 4 * vert_stride);
+ vb = glamor_setup_composite_vbo(screen,
+ (mclip_rect * traps_count *
+ 4 * vert_stride));
clip_processed = mclip_rect;
while (mclip_rect--) {
@@ -938,8 +943,10 @@ _glamor_trapezoids_with_shader(CARD8 op,
source_texcoords[4], source_texcoords[5]);
}
- glamor_emit_composite_triangle(screen, source_texcoords,
+ glamor_emit_composite_triangle(screen, vb,
+ source_texcoords,
NULL, vertices);
+ vb += 3 * glamor_priv->vb_stride / sizeof(float);
}
}
@@ -970,7 +977,6 @@ _glamor_trapezoids_with_shader(CARD8 op,
ret = TRUE;
TRAPEZOID_RESET_GL:
- glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
@@ -1384,7 +1390,6 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
BoxRec one_trap_bound;
int nrect_max;
int i, j;
- float *vertices;
float params[4];
glamor_priv = glamor_get_screen_private(screen);
@@ -1413,7 +1418,6 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
pixmap_priv_get_dest_scale(pixmap_priv, (&xscale), (&yscale));
- glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
/* Now draw the Trapezoid mask. */
@@ -1425,11 +1429,12 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
nrect_max = GLAMOR_COMPOSITE_VBO_VERT_CNT / (4 * GLAMOR_VERTEX_RIGHT_PARAM);
for (i = 0; i < ntrap;) {
+ float *vertices;
int mrect;
int stride;
mrect = (ntrap - i) > nrect_max ? nrect_max : (ntrap - i);
- glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
+ vertices = glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
stride = glamor_priv->vb_stride / sizeof(float);
for (j = 0; j < mrect; j++) {
@@ -1452,8 +1457,7 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
miTrapezoidBounds(1, ptrap, &one_trap_bound);
- vertices =
- (float *) (glamor_priv->vb + glamor_priv->vbo_offset) + 2;
+ vertices += 2;
glamor_set_tcoords_ext((pixmap_priv->base.pixmap->drawable.width),
(pixmap_priv->base.pixmap->drawable.height),
(one_trap_bound.x1), (one_trap_bound.y1),
@@ -1525,6 +1529,7 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
}
params[2] = right_slope;
glamor_set_const_ext(params, 4, vertices, 4, stride);
+ vertices += 4;
DEBUGF("trap_top = %f, trap_bottom = %f, "
"trap_left_x = %f, trap_left_y = %f, left_slope = %f, "
@@ -1537,23 +1542,17 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
((float) ptrap->right.p1.y) / 65536, right_slope);
glamor_priv->render_nr_verts += 4;
- glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
+ vertices += 3 * stride;
}
i += mrect;
+ glamor_put_vbo_space(screen);
+
/* Now rendering. */
if (!glamor_priv->render_nr_verts)
continue;
- if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
- glUnmapBuffer(GL_ARRAY_BUFFER);
- else {
- glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
- glBufferData(GL_ARRAY_BUFFER, glamor_priv->vbo_offset,
- glamor_priv->vb, GL_DYNAMIC_DRAW);
- }
-
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
glDrawRangeElements(GL_TRIANGLES, 0,
glamor_priv->render_nr_verts,
@@ -1566,7 +1565,6 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
}
}
- glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBlendFunc(GL_ONE, GL_ZERO);
glDisable(GL_BLEND);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 16:29:10 +0000