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-rw-r--r--xorg-server/glamor/glamor_trapezoid.c3230
1 files changed, 1634 insertions, 1596 deletions
diff --git a/xorg-server/glamor/glamor_trapezoid.c b/xorg-server/glamor/glamor_trapezoid.c
index 76b3729cf..cd99a4782 100644
--- a/xorg-server/glamor/glamor_trapezoid.c
+++ b/xorg-server/glamor/glamor_trapezoid.c
@@ -37,25 +37,27 @@
#include "fbpict.h"
static xFixed
-_glamor_linefixedX (xLineFixed *l, xFixed y, Bool ceil)
+_glamor_linefixedX(xLineFixed *l, xFixed y, Bool ceil)
{
- xFixed dx = l->p2.x - l->p1.x;
- xFixed_32_32 ex = (xFixed_32_32) (y - l->p1.y) * dx;
- xFixed dy = l->p2.y - l->p1.y;
- if (ceil)
- ex += (dy - 1);
- return l->p1.x + (xFixed) (ex / dy);
+ xFixed dx = l->p2.x - l->p1.x;
+ xFixed_32_32 ex = (xFixed_32_32) (y - l->p1.y) * dx;
+ xFixed dy = l->p2.y - l->p1.y;
+
+ if (ceil)
+ ex += (dy - 1);
+ return l->p1.x + (xFixed) (ex / dy);
}
static xFixed
-_glamor_linefixedY (xLineFixed *l, xFixed x, Bool ceil)
+_glamor_linefixedY(xLineFixed *l, xFixed x, Bool ceil)
{
- xFixed dy = l->p2.y - l->p1.y;
- xFixed_32_32 ey = (xFixed_32_32) (x - l->p1.x) * dy;
- xFixed dx = l->p2.x - l->p1.x;
- if (ceil)
- ey += (dx - 1);
- return l->p1.y + (xFixed) (ey / dx);
+ xFixed dy = l->p2.y - l->p1.y;
+ xFixed_32_32 ey = (xFixed_32_32) (x - l->p1.x) * dy;
+ xFixed dx = l->p2.x - l->p1.x;
+
+ if (ceil)
+ ey += (dx - 1);
+ return l->p1.y + (xFixed) (ey / dx);
}
#ifdef GLAMOR_TRAPEZOID_SHADER
@@ -73,204 +75,206 @@ _glamor_linefixedY (xLineFixed *l, xFixed x, Bool ceil)
&& point[1] <= IntToxFixed(rect->y2))
static xFixed
-_glamor_lines_crossfixedY (xLineFixed *l, xLineFixed *r)
+_glamor_lines_crossfixedY(xLineFixed *l, xLineFixed *r)
{
- xFixed dx1 = l->p2.x - l->p1.x;
- xFixed dx2 = r->p2.x - r->p1.x;
- xFixed dy1 = l->p2.y - l->p1.y;
- xFixed dy2 = r->p2.y - r->p1.y;
- xFixed_32_32 tmp = (xFixed_32_32) dy2 * dy1;
- xFixed_32_32 dividend1 = (tmp >> 32) * (l->p1.x - r->p1.x);
- xFixed_32_32 dividend2;
- xFixed_32_32 dividend3;
- xFixed_32_32 divisor;
-
- tmp = (xFixed_32_32) dx1 * dy2;
- dividend2 = (tmp >> 32) * l->p1.y;
- tmp = (xFixed_32_32) dy1 * dx2;
- dividend3 = (tmp >> 32) * r->p1.y;
- divisor = ((xFixed_32_32) dx1 * (xFixed_32_32) dy2
- - (xFixed_32_32) dy1 * (xFixed_32_32) dx2) >> 32;
-
- if (divisor)
- return (xFixed)((dividend2 - dividend1 - dividend3) / divisor);
-
- return 0xFFFFFFFF;
-}
+ xFixed dx1 = l->p2.x - l->p1.x;
+ xFixed dx2 = r->p2.x - r->p1.x;
+ xFixed dy1 = l->p2.y - l->p1.y;
+ xFixed dy2 = r->p2.y - r->p1.y;
+ xFixed_32_32 tmp = (xFixed_32_32) dy2 * dy1;
+ xFixed_32_32 dividend1 = (tmp >> 32) * (l->p1.x - r->p1.x);
+ xFixed_32_32 dividend2;
+ xFixed_32_32 dividend3;
+ xFixed_32_32 divisor;
-static Bool
-point_inside_trapezoid(int point[2], xTrapezoid * trap, xFixed cut_y)
-{
- int ret = TRUE;
- int tmp;
- if (point[1] > trap->bottom) {
- ret = FALSE;
- if (DEBUG_CLIP_VTX) {
- ErrorF("Out of Trap bottom, point[1] = %d(0x%x)), "
- "bottom = %d(0x%x)\n",
- (unsigned int)xFixedToInt(point[1]), point[1],
- (unsigned int)xFixedToInt(trap->bottom),
- (unsigned int)trap->bottom);
- }
-
- return ret;
- }
+ tmp = (xFixed_32_32) dx1 *dy2;
- if (point[1] < trap->top) {
- ret = FALSE;
- if (DEBUG_CLIP_VTX) {
- ErrorF("Out of Trap top, point[1] = %d(0x%x)), "
- "top = %d(0x%x)\n",
- (unsigned int)xFixedToInt(point[1]), point[1],
- (unsigned int)xFixedToInt(trap->top),
- (unsigned int)trap->top);
- }
-
- return ret;
- }
+ dividend2 = (tmp >> 32) * l->p1.y;
+ tmp = (xFixed_32_32) dy1 *dx2;
- tmp = _glamor_linefixedX (&trap->left, point[1], FALSE);
- if (point[0] < tmp) {
- ret = FALSE;
-
- if (abs(cut_y - trap->top) < pixman_fixed_1_minus_e &&
- abs(point[1] - trap->top) < pixman_fixed_1_minus_e &&
- tmp - point[0] < pixman_fixed_1_minus_e) {
- ret = TRUE;
- } else if (abs(cut_y - trap->bottom) < pixman_fixed_1_minus_e &&
- point[1] - trap->bottom < pixman_fixed_1_minus_e &&
- tmp - point[0] < pixman_fixed_1_minus_e) {
- ret = TRUE;
- }
-
- if (DEBUG_CLIP_VTX && !ret) {
- ErrorF("Out of Trap left, point[0] = %d(0x%x)), "
- "left = %d(0x%x)\n",
- (unsigned int)xFixedToInt(point[0]), point[0],
- (unsigned int)xFixedToInt(tmp), (unsigned int)tmp);
- }
-
- if (!ret)
- return ret;
- }
+ dividend3 = (tmp >> 32) * r->p1.y;
+ divisor = ((xFixed_32_32) dx1 * (xFixed_32_32) dy2
+ - (xFixed_32_32) dy1 * (xFixed_32_32) dx2) >> 32;
- tmp = _glamor_linefixedX (&trap->right, point[1], TRUE);
- if (point[0] > tmp) {
- ret = FALSE;
-
- if (abs(cut_y - trap->top) < pixman_fixed_1_minus_e &&
- abs(point[1] - trap->top) < pixman_fixed_1_minus_e &&
- point[0] - tmp < pixman_fixed_1_minus_e) {
- ret = TRUE;
- } else if (abs(cut_y - trap->bottom) < pixman_fixed_1_minus_e &&
- abs(point[1] - trap->bottom) < pixman_fixed_1_minus_e &&
- point[0] - tmp < pixman_fixed_1_minus_e) {
- ret = TRUE;
- }
-
- if (DEBUG_CLIP_VTX && !ret) {
- ErrorF("Out of Trap right, point[0] = %d(0x%x)), "
- "right = %d(0x%x)\n",
- (unsigned int)xFixedToInt(point[0]), point[0],
- (unsigned int)xFixedToInt(tmp), (unsigned int)tmp);
- }
-
- if (!ret)
- return ret;
- }
+ if (divisor)
+ return (xFixed) ((dividend2 - dividend1 - dividend3) / divisor);
+
+ return 0xFFFFFFFF;
+}
- return ret;
+static Bool
+point_inside_trapezoid(int point[2], xTrapezoid *trap, xFixed cut_y)
+{
+ int ret = TRUE;
+ int tmp;
+
+ if (point[1] > trap->bottom) {
+ ret = FALSE;
+ if (DEBUG_CLIP_VTX) {
+ ErrorF("Out of Trap bottom, point[1] = %d(0x%x)), "
+ "bottom = %d(0x%x)\n",
+ (unsigned int) xFixedToInt(point[1]), point[1],
+ (unsigned int) xFixedToInt(trap->bottom),
+ (unsigned int) trap->bottom);
+ }
+
+ return ret;
+ }
+
+ if (point[1] < trap->top) {
+ ret = FALSE;
+ if (DEBUG_CLIP_VTX) {
+ ErrorF("Out of Trap top, point[1] = %d(0x%x)), "
+ "top = %d(0x%x)\n",
+ (unsigned int) xFixedToInt(point[1]), point[1],
+ (unsigned int) xFixedToInt(trap->top),
+ (unsigned int) trap->top);
+ }
+
+ return ret;
+ }
+
+ tmp = _glamor_linefixedX(&trap->left, point[1], FALSE);
+ if (point[0] < tmp) {
+ ret = FALSE;
+
+ if (abs(cut_y - trap->top) < pixman_fixed_1_minus_e &&
+ abs(point[1] - trap->top) < pixman_fixed_1_minus_e &&
+ tmp - point[0] < pixman_fixed_1_minus_e) {
+ ret = TRUE;
+ }
+ else if (abs(cut_y - trap->bottom) < pixman_fixed_1_minus_e &&
+ point[1] - trap->bottom < pixman_fixed_1_minus_e &&
+ tmp - point[0] < pixman_fixed_1_minus_e) {
+ ret = TRUE;
+ }
+
+ if (DEBUG_CLIP_VTX && !ret) {
+ ErrorF("Out of Trap left, point[0] = %d(0x%x)), "
+ "left = %d(0x%x)\n",
+ (unsigned int) xFixedToInt(point[0]), point[0],
+ (unsigned int) xFixedToInt(tmp), (unsigned int) tmp);
+ }
+
+ if (!ret)
+ return ret;
+ }
+
+ tmp = _glamor_linefixedX(&trap->right, point[1], TRUE);
+ if (point[0] > tmp) {
+ ret = FALSE;
+
+ if (abs(cut_y - trap->top) < pixman_fixed_1_minus_e &&
+ abs(point[1] - trap->top) < pixman_fixed_1_minus_e &&
+ point[0] - tmp < pixman_fixed_1_minus_e) {
+ ret = TRUE;
+ }
+ else if (abs(cut_y - trap->bottom) < pixman_fixed_1_minus_e &&
+ abs(point[1] - trap->bottom) < pixman_fixed_1_minus_e &&
+ point[0] - tmp < pixman_fixed_1_minus_e) {
+ ret = TRUE;
+ }
+
+ if (DEBUG_CLIP_VTX && !ret) {
+ ErrorF("Out of Trap right, point[0] = %d(0x%x)), "
+ "right = %d(0x%x)\n",
+ (unsigned int) xFixedToInt(point[0]), point[0],
+ (unsigned int) xFixedToInt(tmp), (unsigned int) tmp);
+ }
+
+ if (!ret)
+ return ret;
+ }
+
+ return ret;
}
static void
glamor_emit_composite_triangle(ScreenPtr screen,
- const float *src_coords,
- const float *mask_coords,
- const float *dst_coords)
+ 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, 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);
}
static void
glamor_flush_composite_triangles(ScreenPtr screen)
{
- glamor_screen_private *glamor_priv =
- glamor_get_screen_private(screen);
- glamor_gl_dispatch *dispatch;
-
- dispatch = glamor_get_dispatch(glamor_priv);
- if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
- dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
- else {
-
- dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
- dispatch->glBufferData(GL_ARRAY_BUFFER,
- glamor_priv->vbo_offset,
- glamor_priv->vb, GL_DYNAMIC_DRAW);
- }
+ glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+ glamor_gl_dispatch *dispatch;
+
+ dispatch = glamor_get_dispatch(glamor_priv);
+ if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+ dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
+ else {
- if (!glamor_priv->render_nr_verts)
- return;
+ dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+ dispatch->glBufferData(GL_ARRAY_BUFFER,
+ glamor_priv->vbo_offset,
+ glamor_priv->vb, GL_DYNAMIC_DRAW);
+ }
- dispatch->glDrawArrays(GL_TRIANGLES, 0, glamor_priv->render_nr_verts);
- glamor_put_dispatch(glamor_priv);
+ if (!glamor_priv->render_nr_verts)
+ return;
+
+ dispatch->glDrawArrays(GL_TRIANGLES, 0, glamor_priv->render_nr_verts);
+ glamor_put_dispatch(glamor_priv);
}
static Bool
-_glamor_clip_trapezoid_vertex(xTrapezoid * trap, BoxPtr pbox,
- int vertex[6], int *num)
+_glamor_clip_trapezoid_vertex(xTrapezoid *trap, BoxPtr pbox,
+ int vertex[6], int *num)
{
- xFixed edge_cross_y = 0xFFFFFFFF;
- int tl[2];
- int bl[2];
- int tr[2];
- int br[2];
- int left_cut_top[2];
- int left_cut_left[2];
- int left_cut_right[2];
- int left_cut_bottom[2];
- int right_cut_top[2];
- int right_cut_left[2];
- int right_cut_right[2];
- int right_cut_bottom[2];
- int tmp[2];
- int tmp_vtx[20*2];
- float tmp_vtx_slope[20];
- BoxRec trap_bound;
- int i = 0;
- int vertex_num = 0;
-
- if (DEBUG_CLIP_VTX) {
- ErrorF("The parameter of xTrapezoid is:\ntop: %d 0x%x\tbottom: %d 0x%x\n"
- "left: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n"
- "right: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n",
- xFixedToInt(trap->top), (unsigned int)trap->top,
- xFixedToInt(trap->bottom), (unsigned int)trap->bottom,
- xFixedToInt(trap->left.p1.x), (unsigned int)trap->left.p1.x,
- xFixedToInt(trap->left.p1.y), (unsigned int)trap->left.p1.y,
- xFixedToInt(trap->left.p2.x), (unsigned int)trap->left.p2.x,
- xFixedToInt(trap->left.p2.y), (unsigned int)trap->left.p2.y,
- xFixedToInt(trap->right.p1.x), (unsigned int)trap->right.p1.x,
- xFixedToInt(trap->right.p1.y), (unsigned int)trap->right.p1.y,
- xFixedToInt(trap->right.p2.x), (unsigned int)trap->right.p2.x,
- xFixedToInt(trap->right.p2.y), (unsigned int)trap->right.p2.y);
- }
-
- miTrapezoidBounds(1, trap, &trap_bound);
- if (DEBUG_CLIP_VTX)
- ErrorF("The bounds for this traps is: bounds.x1 = %d, bounds.x2 = %d, "
- "bounds.y1 = %d, bounds.y2 = %d\n", trap_bound.x1, trap_bound.x2,
- trap_bound.y1, trap_bound.y2);
-
- if (trap_bound.x1 > pbox->x2 || trap_bound.x2 < pbox->x1)
- return FALSE;
- if (trap_bound.y1 > pbox->y2 || trap_bound.y2 < pbox->y1)
- return FALSE;
+ xFixed edge_cross_y = 0xFFFFFFFF;
+ int tl[2];
+ int bl[2];
+ int tr[2];
+ int br[2];
+ int left_cut_top[2];
+ int left_cut_left[2];
+ int left_cut_right[2];
+ int left_cut_bottom[2];
+ int right_cut_top[2];
+ int right_cut_left[2];
+ int right_cut_right[2];
+ int right_cut_bottom[2];
+ int tmp[2];
+ int tmp_vtx[20 * 2];
+ float tmp_vtx_slope[20];
+ BoxRec trap_bound;
+ int i = 0;
+ int vertex_num = 0;
+
+ if (DEBUG_CLIP_VTX) {
+ ErrorF
+ ("The parameter of xTrapezoid is:\ntop: %d 0x%x\tbottom: %d 0x%x\n"
+ "left: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n"
+ "right: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n",
+ xFixedToInt(trap->top), (unsigned int) trap->top,
+ xFixedToInt(trap->bottom), (unsigned int) trap->bottom,
+ xFixedToInt(trap->left.p1.x), (unsigned int) trap->left.p1.x,
+ xFixedToInt(trap->left.p1.y), (unsigned int) trap->left.p1.y,
+ xFixedToInt(trap->left.p2.x), (unsigned int) trap->left.p2.x,
+ xFixedToInt(trap->left.p2.y), (unsigned int) trap->left.p2.y,
+ xFixedToInt(trap->right.p1.x), (unsigned int) trap->right.p1.x,
+ xFixedToInt(trap->right.p1.y), (unsigned int) trap->right.p1.y,
+ xFixedToInt(trap->right.p2.x), (unsigned int) trap->right.p2.x,
+ xFixedToInt(trap->right.p2.y), (unsigned int) trap->right.p2.y);
+ }
+
+ miTrapezoidBounds(1, trap, &trap_bound);
+ if (DEBUG_CLIP_VTX)
+ ErrorF("The bounds for this traps is: bounds.x1 = %d, bounds.x2 = %d, "
+ "bounds.y1 = %d, bounds.y2 = %d\n", trap_bound.x1, trap_bound.x2,
+ trap_bound.y1, trap_bound.y2);
+
+ if (trap_bound.x1 > pbox->x2 || trap_bound.x2 < pbox->x1)
+ return FALSE;
+ if (trap_bound.y1 > pbox->y2 || trap_bound.y2 < pbox->y1)
+ return FALSE;
#define IS_TRAP_EDGE_VERTICAL(edge) \
(edge->p1.x == edge->p2.x)
@@ -334,1319 +338,1352 @@ _glamor_clip_trapezoid_vertex(xTrapezoid * trap, BoxPtr pbox,
"the Rect\n"); \
}
- /*Trap's right edge cut right edge. */
- if((!IS_TRAP_EDGE_VERTICAL((&trap->left))) ||
- (!IS_TRAP_EDGE_VERTICAL((&trap->right)))) {
- edge_cross_y = _glamor_lines_crossfixedY((&trap->left), (&trap->right));
- if (DEBUG_CLIP_VTX) {
- ErrorF("Trap's left edge cut right edge at %d(0x%x), "
- "trap_top = %x, trap_bottom = %x\n",
- xFixedToInt(edge_cross_y), edge_cross_y,
- (unsigned int)trap->top, (unsigned int)trap->bottom);
- }
- }
-
- /*Trap's TopLeft, BottomLeft, TopRight and BottomRight. */
- CACULATE_CUT_VERTEX(tl, 1, FALSE, trap->top, (&trap->left));
- CACULATE_CUT_VERTEX(bl, 1, FALSE, trap->bottom, (&trap->left));
- CACULATE_CUT_VERTEX(tr, 1, TRUE, trap->top, (&trap->right));
- CACULATE_CUT_VERTEX(br, 1, TRUE, trap->bottom, (&trap->right));
-
- if (DEBUG_CLIP_VTX)
- ErrorF("Trap's TopLeft, BottomLeft, TopRight and BottomRight\n");
- if (DEBUG_CLIP_VTX)
- ErrorF("Caculate the vertex of trapezoid:\n"
- " (%3d, %3d)-------------------------(%3d, %3d)\n"
- " / \\ \n"
- " / \\ \n"
- " / \\ \n"
- " (%3d, %3d)---------------------------------(%3d, %3d)\n"
- "Clip with rect:\n"
- " (%3d, %3d)------------------------(%3d, %3d) \n"
- " | | \n"
- " | | \n"
- " | | \n"
- " (%3d, %3d)------------------------(%3d, %3d) \n",
- xFixedToInt(tl[0]), xFixedToInt(tl[1]), xFixedToInt(tr[0]),
- xFixedToInt(tr[1]), xFixedToInt(bl[0]), xFixedToInt(bl[1]),
- xFixedToInt(br[0]), xFixedToInt(br[1]),
- pbox->x1, pbox->y1, pbox->x2, pbox->y1, pbox->x1, pbox->y2,
- pbox->x2, pbox->y2);
-
- ADD_VERTEX_IF_INSIDE(tl);
- ADD_VERTEX_IF_INSIDE(bl);
- ADD_VERTEX_IF_INSIDE(tr);
- ADD_VERTEX_IF_INSIDE(br);
-
- /*Trap's left edge cut Rect. */
- if (DEBUG_CLIP_VTX)
- ErrorF("Trap's left edge cut Rect\n");
- CACULATE_CUT_VERTEX(left_cut_top, 1, FALSE, IntToxFixed(pbox->y1), (&trap->left));
- ADD_VERTEX_IF_INSIDE(left_cut_top);
- if (!IS_TRAP_EDGE_VERTICAL((&trap->left))) {
- CACULATE_CUT_VERTEX(left_cut_left, 0, FALSE, IntToxFixed(pbox->x1), (&trap->left));
- ADD_VERTEX_IF_INSIDE(left_cut_left);
- }
- CACULATE_CUT_VERTEX(left_cut_bottom, 1, FALSE, IntToxFixed(pbox->y2), (&trap->left));
- ADD_VERTEX_IF_INSIDE(left_cut_bottom);
- if (!IS_TRAP_EDGE_VERTICAL((&trap->left))) {
- CACULATE_CUT_VERTEX(left_cut_right, 0, FALSE, IntToxFixed(pbox->x2), (&trap->left));
- ADD_VERTEX_IF_INSIDE(left_cut_right);
- }
-
- /*Trap's right edge cut Rect. */
- if (DEBUG_CLIP_VTX)
- ErrorF("Trap's right edge cut Rect\n");
- CACULATE_CUT_VERTEX(right_cut_top, 1, TRUE, IntToxFixed(pbox->y1), (&trap->right));
- ADD_VERTEX_IF_INSIDE(right_cut_top);
- if (!IS_TRAP_EDGE_VERTICAL((&trap->right))) {
- CACULATE_CUT_VERTEX(right_cut_left, 0, TRUE, IntToxFixed(pbox->x1), (&trap->right));
- ADD_VERTEX_IF_INSIDE(right_cut_left);
- }
- CACULATE_CUT_VERTEX(right_cut_bottom, 1, TRUE, IntToxFixed(pbox->y2), (&trap->right));
- ADD_VERTEX_IF_INSIDE(right_cut_bottom);
- if (!IS_TRAP_EDGE_VERTICAL((&trap->right))) {
- CACULATE_CUT_VERTEX(right_cut_right, 0, TRUE, IntToxFixed(pbox->x2), (&trap->right));
- ADD_VERTEX_IF_INSIDE(right_cut_right);
- }
-
- /* Trap's top cut Left and Right of rect. */
- if (DEBUG_CLIP_VTX)
- ErrorF("Trap's top cut Left and Right of rect\n");
- tmp[0] = IntToxFixed(pbox->x1);
- tmp[1] = trap->top;
- ADD_VERTEX_IF_INSIDE(tmp);
- tmp[0] = IntToxFixed(pbox->x2);
- tmp[1] = trap->top;
- ADD_VERTEX_IF_INSIDE(tmp);
-
- /* Trap's bottom cut Left and Right of rect. */
- if (DEBUG_CLIP_VTX)
- ErrorF("Trap's bottom cut Left and Right of rect\n");
- tmp[0] = IntToxFixed(pbox->x1);
- tmp[1] = trap->bottom;
- ADD_VERTEX_IF_INSIDE(tmp);
- tmp[0] = IntToxFixed(pbox->x2);
- tmp[1] = trap->bottom;
- ADD_VERTEX_IF_INSIDE(tmp);
-
- /* The orginal 4 vertex of rect. */
- if (DEBUG_CLIP_VTX)
- ErrorF("The orginal 4 vertex of rect\n");
- tmp[0] = IntToxFixed(pbox->x1);
- tmp[1] = IntToxFixed(pbox->y1);
- ADD_VERTEX_IF_INSIDE(tmp);
- tmp[0] = IntToxFixed(pbox->x1);
- tmp[1] = IntToxFixed(pbox->y2);
- ADD_VERTEX_IF_INSIDE(tmp);
- tmp[0] = IntToxFixed(pbox->x2);
- tmp[1] = IntToxFixed(pbox->y2);
- ADD_VERTEX_IF_INSIDE(tmp);
- tmp[0] = IntToxFixed(pbox->x2);
- tmp[1] = IntToxFixed(pbox->y1);
- ADD_VERTEX_IF_INSIDE(tmp);
-
- if (DEBUG_CLIP_VTX) {
- ErrorF("\nThe candidate vertex number is %d\n", vertex_num / 2);
- for (i = 0; i < vertex_num / 2; i++) {
- ErrorF("(%d, %d) ", tmp_vtx[2*i], tmp_vtx[2*i + 1]);
- }
- ErrorF("\n");
- }
-
- /* Sort the vertex by X and then Y. */
- for (i = 0; i < vertex_num / 2; i++) {
- int j;
- for (j = 0; j < vertex_num / 2 - i - 1; j++) {
- if (tmp_vtx[2*j] > tmp_vtx[2*(j+1)]
- || (tmp_vtx[2*j] == tmp_vtx[2*(j+1)]
- && tmp_vtx[2*j + 1] > tmp_vtx[2*(j+1) + 1])) {
- tmp[0] = tmp_vtx[2*j];
- tmp[1] = tmp_vtx[2*j + 1];
- tmp_vtx[2*j] = tmp_vtx[2*(j+1)];
- tmp_vtx[2*j + 1] = tmp_vtx[2*(j+1) + 1];
- tmp_vtx[2*(j+1)] = tmp[0];
- tmp_vtx[2*(j+1) + 1] = tmp[1];
- }
- }
-
- }
-
- if (DEBUG_CLIP_VTX) {
- ErrorF("\nAfter sort vertex number is:\n");
- for (i = 0; i < vertex_num / 2; i++) {
- ErrorF("(%d, %d) ", tmp_vtx[2*i], tmp_vtx[2*i + 1]);
- }
- ErrorF("\n");
- }
-
- memset(vertex, -1, 2*6);
- *num = 0;
-
- for (i = 0; i < vertex_num / 2; i++) {
- if (*num > 0 && vertex[2*(*num - 1)] == tmp_vtx[2*i]
- && vertex[2*(*num - 1) + 1] == tmp_vtx[2*i + 1]) {
- /*same vertex.*/
- if (DEBUG_CLIP_VTX)
- ErrorF("X Point:(%d, %d) discard\n",
- tmp_vtx[2*i], tmp_vtx[2*i + 1]);
- continue;
- }
-
- (*num)++;
- if (*num > 6) {
- if (DEBUG_CLIP_VTX)
- FatalError("Trapezoid clip with Rect can never have vtx"
- "number bigger than 6\n");
- else {
- ErrorF("Trapezoid clip with Rect can never have vtx"
- "number bigger than 6\n");
- *num = 6;
- break;
- }
- }
-
- vertex[2*(*num - 1)] = tmp_vtx[2*i];
- vertex[2*(*num - 1) + 1] = tmp_vtx[2*i + 1];
- if (DEBUG_CLIP_VTX)
- ErrorF("@ Point:(%d, %d) select, num now is %d\n",
- tmp_vtx[2*i], tmp_vtx[2*i + 1], *num);
- }
-
- /* Now we need to arrange the vtx in the polygon's counter-clockwise
- order. We first select the left and top point as the start point and
- sort every vtx by the slope from vtx to the start vtx. */
- for (i = 1; i < *num; i++) {
- tmp_vtx_slope[i] = (vertex[2*i] != vertex[0] ?
- (float)(vertex[2*i + 1] - vertex[1]) / (float)(vertex[2*i] - vertex[0])
- : (float)INT_MAX);
- }
-
- if (DEBUG_CLIP_VTX) {
- ErrorF("\nvtx number: %d, VTX and slope:\n", *num);
- for (i = 0; i < *num; i++) {
- ErrorF("(%d, %d):%f ",
- vertex[2*i], vertex[2*i + 1],
- tmp_vtx_slope[i]);
- }
- ErrorF("\n");
- }
-
- /* Sort the vertex by slope. */
- for (i = 0; i < *num - 1; i++) {
- int j;
- float tmp_slope;
- for (j = 1; j < *num - i - 1; j++) {
- if (tmp_vtx_slope[j] < tmp_vtx_slope[j + 1]) {
- tmp_slope = tmp_vtx_slope[j];
- tmp_vtx_slope[j] = tmp_vtx_slope[j + 1];
- tmp_vtx_slope[j + 1] = tmp_slope;
- tmp[0] = vertex[2*j];
- tmp[1] = vertex[2*j + 1];
- vertex[2*j] = vertex[2*(j+1)];
- vertex[2*j + 1] = vertex[2*(j+1) + 1];
- vertex[2*(j+1)] = tmp[0];
- vertex[2*(j+1) + 1] = tmp[1];
- }
- }
- }
-
- if (DEBUG_CLIP_VTX) {
- ErrorF("\nBefore return, vtx number: %d, VTX and slope:\n", *num);
- for (i = 0; i < *num; i++) {
- ErrorF("(%d, %d):%f ",
- vertex[2*i], vertex[2*i + 1],
- tmp_vtx_slope[i]);
- }
- ErrorF("\n");
- }
-
- return TRUE;
+ /*Trap's right edge cut right edge. */
+ if ((!IS_TRAP_EDGE_VERTICAL((&trap->left))) ||
+ (!IS_TRAP_EDGE_VERTICAL((&trap->right)))) {
+ edge_cross_y = _glamor_lines_crossfixedY((&trap->left), (&trap->right));
+ if (DEBUG_CLIP_VTX) {
+ ErrorF("Trap's left edge cut right edge at %d(0x%x), "
+ "trap_top = %x, trap_bottom = %x\n",
+ xFixedToInt(edge_cross_y), edge_cross_y,
+ (unsigned int) trap->top, (unsigned int) trap->bottom);
+ }
+ }
+
+ /*Trap's TopLeft, BottomLeft, TopRight and BottomRight. */
+ CACULATE_CUT_VERTEX(tl, 1, FALSE, trap->top, (&trap->left));
+ CACULATE_CUT_VERTEX(bl, 1, FALSE, trap->bottom, (&trap->left));
+ CACULATE_CUT_VERTEX(tr, 1, TRUE, trap->top, (&trap->right));
+ CACULATE_CUT_VERTEX(br, 1, TRUE, trap->bottom, (&trap->right));
+
+ if (DEBUG_CLIP_VTX)
+ ErrorF("Trap's TopLeft, BottomLeft, TopRight and BottomRight\n");
+ if (DEBUG_CLIP_VTX)
+ ErrorF("Caculate the vertex of trapezoid:\n"
+ " (%3d, %3d)-------------------------(%3d, %3d)\n"
+ " / \\ \n"
+ " / \\ \n"
+ " / \\ \n"
+ " (%3d, %3d)---------------------------------(%3d, %3d)\n"
+ "Clip with rect:\n"
+ " (%3d, %3d)------------------------(%3d, %3d) \n"
+ " | | \n"
+ " | | \n"
+ " | | \n"
+ " (%3d, %3d)------------------------(%3d, %3d) \n",
+ xFixedToInt(tl[0]), xFixedToInt(tl[1]), xFixedToInt(tr[0]),
+ xFixedToInt(tr[1]), xFixedToInt(bl[0]), xFixedToInt(bl[1]),
+ xFixedToInt(br[0]), xFixedToInt(br[1]),
+ pbox->x1, pbox->y1, pbox->x2, pbox->y1, pbox->x1, pbox->y2,
+ pbox->x2, pbox->y2);
+
+ ADD_VERTEX_IF_INSIDE(tl);
+ ADD_VERTEX_IF_INSIDE(bl);
+ ADD_VERTEX_IF_INSIDE(tr);
+ ADD_VERTEX_IF_INSIDE(br);
+
+ /*Trap's left edge cut Rect. */
+ if (DEBUG_CLIP_VTX)
+ ErrorF("Trap's left edge cut Rect\n");
+ CACULATE_CUT_VERTEX(left_cut_top, 1, FALSE, IntToxFixed(pbox->y1),
+ (&trap->left));
+ ADD_VERTEX_IF_INSIDE(left_cut_top);
+ if (!IS_TRAP_EDGE_VERTICAL((&trap->left))) {
+ CACULATE_CUT_VERTEX(left_cut_left, 0, FALSE, IntToxFixed(pbox->x1),
+ (&trap->left));
+ ADD_VERTEX_IF_INSIDE(left_cut_left);
+ }
+ CACULATE_CUT_VERTEX(left_cut_bottom, 1, FALSE, IntToxFixed(pbox->y2),
+ (&trap->left));
+ ADD_VERTEX_IF_INSIDE(left_cut_bottom);
+ if (!IS_TRAP_EDGE_VERTICAL((&trap->left))) {
+ CACULATE_CUT_VERTEX(left_cut_right, 0, FALSE, IntToxFixed(pbox->x2),
+ (&trap->left));
+ ADD_VERTEX_IF_INSIDE(left_cut_right);
+ }
+
+ /*Trap's right edge cut Rect. */
+ if (DEBUG_CLIP_VTX)
+ ErrorF("Trap's right edge cut Rect\n");
+ CACULATE_CUT_VERTEX(right_cut_top, 1, TRUE, IntToxFixed(pbox->y1),
+ (&trap->right));
+ ADD_VERTEX_IF_INSIDE(right_cut_top);
+ if (!IS_TRAP_EDGE_VERTICAL((&trap->right))) {
+ CACULATE_CUT_VERTEX(right_cut_left, 0, TRUE, IntToxFixed(pbox->x1),
+ (&trap->right));
+ ADD_VERTEX_IF_INSIDE(right_cut_left);
+ }
+ CACULATE_CUT_VERTEX(right_cut_bottom, 1, TRUE, IntToxFixed(pbox->y2),
+ (&trap->right));
+ ADD_VERTEX_IF_INSIDE(right_cut_bottom);
+ if (!IS_TRAP_EDGE_VERTICAL((&trap->right))) {
+ CACULATE_CUT_VERTEX(right_cut_right, 0, TRUE, IntToxFixed(pbox->x2),
+ (&trap->right));
+ ADD_VERTEX_IF_INSIDE(right_cut_right);
+ }
+
+ /* Trap's top cut Left and Right of rect. */
+ if (DEBUG_CLIP_VTX)
+ ErrorF("Trap's top cut Left and Right of rect\n");
+ tmp[0] = IntToxFixed(pbox->x1);
+ tmp[1] = trap->top;
+ ADD_VERTEX_IF_INSIDE(tmp);
+ tmp[0] = IntToxFixed(pbox->x2);
+ tmp[1] = trap->top;
+ ADD_VERTEX_IF_INSIDE(tmp);
+
+ /* Trap's bottom cut Left and Right of rect. */
+ if (DEBUG_CLIP_VTX)
+ ErrorF("Trap's bottom cut Left and Right of rect\n");
+ tmp[0] = IntToxFixed(pbox->x1);
+ tmp[1] = trap->bottom;
+ ADD_VERTEX_IF_INSIDE(tmp);
+ tmp[0] = IntToxFixed(pbox->x2);
+ tmp[1] = trap->bottom;
+ ADD_VERTEX_IF_INSIDE(tmp);
+
+ /* The orginal 4 vertex of rect. */
+ if (DEBUG_CLIP_VTX)
+ ErrorF("The orginal 4 vertex of rect\n");
+ tmp[0] = IntToxFixed(pbox->x1);
+ tmp[1] = IntToxFixed(pbox->y1);
+ ADD_VERTEX_IF_INSIDE(tmp);
+ tmp[0] = IntToxFixed(pbox->x1);
+ tmp[1] = IntToxFixed(pbox->y2);
+ ADD_VERTEX_IF_INSIDE(tmp);
+ tmp[0] = IntToxFixed(pbox->x2);
+ tmp[1] = IntToxFixed(pbox->y2);
+ ADD_VERTEX_IF_INSIDE(tmp);
+ tmp[0] = IntToxFixed(pbox->x2);
+ tmp[1] = IntToxFixed(pbox->y1);
+ ADD_VERTEX_IF_INSIDE(tmp);
+
+ if (DEBUG_CLIP_VTX) {
+ ErrorF("\nThe candidate vertex number is %d\n", vertex_num / 2);
+ for (i = 0; i < vertex_num / 2; i++) {
+ ErrorF("(%d, %d) ", tmp_vtx[2 * i], tmp_vtx[2 * i + 1]);
+ }
+ ErrorF("\n");
+ }
+
+ /* Sort the vertex by X and then Y. */
+ for (i = 0; i < vertex_num / 2; i++) {
+ int j;
+
+ for (j = 0; j < vertex_num / 2 - i - 1; j++) {
+ if (tmp_vtx[2 * j] > tmp_vtx[2 * (j + 1)]
+ || (tmp_vtx[2 * j] == tmp_vtx[2 * (j + 1)]
+ && tmp_vtx[2 * j + 1] > tmp_vtx[2 * (j + 1) + 1])) {
+ tmp[0] = tmp_vtx[2 * j];
+ tmp[1] = tmp_vtx[2 * j + 1];
+ tmp_vtx[2 * j] = tmp_vtx[2 * (j + 1)];
+ tmp_vtx[2 * j + 1] = tmp_vtx[2 * (j + 1) + 1];
+ tmp_vtx[2 * (j + 1)] = tmp[0];
+ tmp_vtx[2 * (j + 1) + 1] = tmp[1];
+ }
+ }
+
+ }
+
+ if (DEBUG_CLIP_VTX) {
+ ErrorF("\nAfter sort vertex number is:\n");
+ for (i = 0; i < vertex_num / 2; i++) {
+ ErrorF("(%d, %d) ", tmp_vtx[2 * i], tmp_vtx[2 * i + 1]);
+ }
+ ErrorF("\n");
+ }
+
+ memset(vertex, -1, 2 * 6);
+ *num = 0;
+
+ for (i = 0; i < vertex_num / 2; i++) {
+ if (*num > 0 && vertex[2 * (*num - 1)] == tmp_vtx[2 * i]
+ && vertex[2 * (*num - 1) + 1] == tmp_vtx[2 * i + 1]) {
+ /*same vertex. */
+ if (DEBUG_CLIP_VTX)
+ ErrorF("X Point:(%d, %d) discard\n",
+ tmp_vtx[2 * i], tmp_vtx[2 * i + 1]);
+ continue;
+ }
+
+ (*num)++;
+ if (*num > 6) {
+ if (DEBUG_CLIP_VTX)
+ FatalError("Trapezoid clip with Rect can never have vtx"
+ "number bigger than 6\n");
+ else {
+ ErrorF("Trapezoid clip with Rect can never have vtx"
+ "number bigger than 6\n");
+ *num = 6;
+ break;
+ }
+ }
+
+ vertex[2 * (*num - 1)] = tmp_vtx[2 * i];
+ vertex[2 * (*num - 1) + 1] = tmp_vtx[2 * i + 1];
+ if (DEBUG_CLIP_VTX)
+ ErrorF("@ Point:(%d, %d) select, num now is %d\n",
+ tmp_vtx[2 * i], tmp_vtx[2 * i + 1], *num);
+ }
+
+ /* Now we need to arrange the vtx in the polygon's counter-clockwise
+ order. We first select the left and top point as the start point and
+ sort every vtx by the slope from vtx to the start vtx. */
+ for (i = 1; i < *num; i++) {
+ tmp_vtx_slope[i] = (vertex[2 * i] != vertex[0] ?
+ (float) (vertex[2 * i + 1] -
+ vertex[1]) / (float) (vertex[2 * i] -
+ vertex[0])
+ : (float) INT_MAX);
+ }
+
+ if (DEBUG_CLIP_VTX) {
+ ErrorF("\nvtx number: %d, VTX and slope:\n", *num);
+ for (i = 0; i < *num; i++) {
+ ErrorF("(%d, %d):%f ",
+ vertex[2 * i], vertex[2 * i + 1], tmp_vtx_slope[i]);
+ }
+ ErrorF("\n");
+ }
+
+ /* Sort the vertex by slope. */
+ for (i = 0; i < *num - 1; i++) {
+ int j;
+ float tmp_slope;
+
+ for (j = 1; j < *num - i - 1; j++) {
+ if (tmp_vtx_slope[j] < tmp_vtx_slope[j + 1]) {
+ tmp_slope = tmp_vtx_slope[j];
+ tmp_vtx_slope[j] = tmp_vtx_slope[j + 1];
+ tmp_vtx_slope[j + 1] = tmp_slope;
+ tmp[0] = vertex[2 * j];
+ tmp[1] = vertex[2 * j + 1];
+ vertex[2 * j] = vertex[2 * (j + 1)];
+ vertex[2 * j + 1] = vertex[2 * (j + 1) + 1];
+ vertex[2 * (j + 1)] = tmp[0];
+ vertex[2 * (j + 1) + 1] = tmp[1];
+ }
+ }
+ }
+
+ if (DEBUG_CLIP_VTX) {
+ ErrorF("\nBefore return, vtx number: %d, VTX and slope:\n", *num);
+ for (i = 0; i < *num; i++) {
+ ErrorF("(%d, %d):%f ",
+ vertex[2 * i], vertex[2 * i + 1], tmp_vtx_slope[i]);
+ }
+ ErrorF("\n");
+ }
+
+ return TRUE;
}
static void
glamor_setup_composite_vbo_for_trapezoid(ScreenPtr screen, int n_verts)
{
- glamor_screen_private *glamor_priv =
- glamor_get_screen_private(screen);
- glamor_gl_dispatch *dispatch;
- int stride;
- int vert_size;
-
- glamor_priv->render_nr_verts = 0;
-
- /* For GLAMOR_VERTEX_POS */
- glamor_priv->vb_stride = 2 * sizeof(float);
-
- /* For GLAMOR_GLAMOR_VERTEX_SOURCE */
- glamor_priv->vb_stride += 2 * sizeof(float);
-
- /* For GLAMOR_VERTEX_TOP_BOTTOM */
- glamor_priv->vb_stride += 2 * sizeof(float);
-
- /* For GLAMOR_VERTEX_LEFT_PARAM */
- glamor_priv->vb_stride += 4 * sizeof(float);
-
- /* For GLAMOR_VERTEX_RIGHT_PARAM */
- glamor_priv->vb_stride += 4 * sizeof(float);
-
- vert_size = n_verts * glamor_priv->vb_stride;
-
- dispatch = glamor_get_dispatch(glamor_priv);
-
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
-
- dispatch->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;
- dispatch->glBufferData(GL_ARRAY_BUFFER,
- glamor_priv->vbo_size,
- NULL, GL_STREAM_DRAW);
- }
-
- glamor_priv->vb = dispatch->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;
- }
-
- dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
-
- /* Set the vertex pointer. */
- dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long)glamor_priv->vbo_offset));
- dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
- stride = 2;
-
- dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
- dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
- stride += 2;
-
- dispatch->glVertexAttribPointer(GLAMOR_VERTEX_TOP_BOTTOM, 2, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
- dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
- stride += 2;
-
- dispatch->glVertexAttribPointer(GLAMOR_VERTEX_LEFT_PARAM, 4, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
- dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
- stride += 4;
-
- dispatch->glVertexAttribPointer(GLAMOR_VERTEX_RIGHT_PARAM, 4, GL_FLOAT,
- GL_FALSE, glamor_priv->vb_stride,
- (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
- dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
-
- glamor_put_dispatch(glamor_priv);
+ glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+ glamor_gl_dispatch *dispatch;
+ int stride;
+ int vert_size;
+
+ glamor_priv->render_nr_verts = 0;
+
+ /* For GLAMOR_VERTEX_POS */
+ glamor_priv->vb_stride = 2 * sizeof(float);
+
+ /* For GLAMOR_GLAMOR_VERTEX_SOURCE */
+ glamor_priv->vb_stride += 2 * sizeof(float);
+
+ /* For GLAMOR_VERTEX_TOP_BOTTOM */
+ glamor_priv->vb_stride += 2 * sizeof(float);
+
+ /* For GLAMOR_VERTEX_LEFT_PARAM */
+ glamor_priv->vb_stride += 4 * sizeof(float);
+
+ /* For GLAMOR_VERTEX_RIGHT_PARAM */
+ glamor_priv->vb_stride += 4 * sizeof(float);
+
+ vert_size = n_verts * glamor_priv->vb_stride;
+
+ dispatch = glamor_get_dispatch(glamor_priv);
+
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+
+ dispatch->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;
+ dispatch->glBufferData(GL_ARRAY_BUFFER,
+ glamor_priv->vbo_size, NULL, GL_STREAM_DRAW);
+ }
+
+ glamor_priv->vb = dispatch->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;
+ }
+
+ dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
+
+ /* Set the vertex pointer. */
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long) glamor_priv->vbo_offset));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+ stride = 2;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long) glamor_priv->vbo_offset +
+ stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+ stride += 2;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_TOP_BOTTOM, 2, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long) glamor_priv->vbo_offset +
+ stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+ stride += 2;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_LEFT_PARAM, 4, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long) glamor_priv->vbo_offset +
+ stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+ stride += 4;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_RIGHT_PARAM, 4, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long) glamor_priv->vbo_offset +
+ stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+
+ glamor_put_dispatch(glamor_priv);
}
static Bool
_glamor_trapezoids_with_shader(CARD8 op,
- PicturePtr src, PicturePtr dst,
- PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
- int ntrap, xTrapezoid * traps)
+ PicturePtr src, PicturePtr dst,
+ PictFormatPtr mask_format, INT16 x_src,
+ INT16 y_src, int ntrap, xTrapezoid * traps)
{
- ScreenPtr screen = dst->pDrawable->pScreen;
- glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
- struct shader_key key;
- glamor_composite_shader *shader = NULL;
- struct blendinfo op_info;
- PictFormatShort saved_source_format = 0;
- PixmapPtr source_pixmap = NULL;
- PixmapPtr dest_pixmap = NULL;
- glamor_pixmap_private *source_pixmap_priv = NULL;
- glamor_pixmap_private *dest_pixmap_priv = NULL;
- glamor_pixmap_private *temp_src_priv = NULL;
- int x_temp_src, y_temp_src;
- int src_width, src_height;
- int source_x_off, source_y_off;
- GLfloat src_xscale = 1, src_yscale = 1;
- int x_dst, y_dst;
- int dest_x_off, dest_y_off;
- GLfloat dst_xscale, dst_yscale;
- BoxRec bounds;
- PicturePtr temp_src = src;
- glamor_gl_dispatch *dispatch = NULL;
- int vert_stride = 3;
- int ntriangle_per_loop;
- int nclip_rect;
- int mclip_rect;
- int clip_processed;
- int clipped_vtx[6*2];
- RegionRec region;
- BoxPtr box = NULL;
- BoxPtr pbox = NULL;
- int traps_count = 0;
- int traps_not_completed = 0;
- xTrapezoid * ptrap = NULL;
- int nbox;
- float src_matrix[9];
- Bool ret = FALSE;
-
- /* If a mask format wasn't provided, we get to choose, but behavior should
- * be as if there was no temporary mask the traps were accumulated into.
- */
- if (!mask_format) {
- if (dst->polyEdge == PolyEdgeSharp)
- mask_format = PictureMatchFormat(screen, 1, PICT_a1);
- else
- mask_format = PictureMatchFormat(screen, 8, PICT_a8);
- for (; ntrap; ntrap--, traps++)
- glamor_trapezoids(op, src, dst, mask_format, x_src,
- y_src, 1, traps);
- return TRUE;
- }
-
- miTrapezoidBounds(ntrap, traps, &bounds);
- DEBUGF("The bounds for all traps is: bounds.x1 = %d, bounds.x2 = %d, "
- "bounds.y1 = %d, bounds.y2 = %d\n", bounds.x1, bounds.x2,
- bounds.y1, bounds.y2);
-
- /* No area need to render. */
- if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
- return TRUE;
-
- dest_pixmap = glamor_get_drawable_pixmap(dst->pDrawable);
- dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
-
- if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)
- || dest_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
- /* Currently. Always fallback to cpu if destination is in CPU memory.*/
- ret = FALSE;
- DEBUGF("dst pixmap has no FBO.\n");
- goto TRAPEZOID_OUT;
- }
-
- if (src->pDrawable) {
- source_pixmap = glamor_get_drawable_pixmap(src->pDrawable);
- source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
- temp_src_priv = source_pixmap_priv;
- if (source_pixmap_priv
- && (source_pixmap_priv->type == GLAMOR_DRM_ONLY
- || source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE)) {
- ret = FALSE;
- goto TRAPEZOID_OUT;
- }
- }
-
- x_dst = bounds.x1;
- y_dst = bounds.y1;
-
- src_width = bounds.x2 - bounds.x1;
- src_height = bounds.y2 - bounds.y1;
-
- x_temp_src = x_src + bounds.x1 - (traps[0].left.p1.x >> 16);
- y_temp_src = y_src + bounds.y1 - (traps[0].left.p1.y >> 16);
-
- if ((!src->pDrawable &&
- (src->pSourcePict->type != SourcePictTypeSolidFill)) //1. The Gradient case.
- /* 2. Has no fbo but can upload.*/
- || (src->pDrawable && !GLAMOR_PIXMAP_PRIV_HAS_FBO(source_pixmap_priv)
- && ((src_width * src_height * 4 <
- source_pixmap->drawable.width * source_pixmap->drawable.height)
- || !glamor_check_fbo_size(glamor_priv, source_pixmap->drawable.width,
- source_pixmap->drawable.height)))) {
-
- if (!glamor_check_fbo_size(glamor_priv, src_width, src_height)) {
- ret = FALSE;
- goto TRAPEZOID_OUT;
- }
- temp_src = glamor_convert_gradient_picture(screen, src,
- x_src, y_src,
- src_width, src_height);
- if (!temp_src) {
- temp_src = src;
- ret = FALSE;
- DEBUGF("Convert gradient picture failed\n");
- goto TRAPEZOID_OUT;
- }
- temp_src_priv = glamor_get_pixmap_private((PixmapPtr)temp_src->pDrawable);
- x_temp_src = y_temp_src = 0;
- }
-
- x_dst += dst->pDrawable->x;
- y_dst += dst->pDrawable->y;
- if (temp_src->pDrawable) {
- x_temp_src += temp_src->pDrawable->x;
- y_temp_src += temp_src->pDrawable->y;
- }
-
- if (!miComputeCompositeRegion(&region,
- temp_src, NULL, dst,
- x_temp_src, y_temp_src,
- 0, 0,
- x_dst, y_dst,
- src_width, src_height)) {
- DEBUGF("All the regions are clipped out, do nothing\n");
- goto TRAPEZOID_OUT;
- }
-
- box = REGION_RECTS(&region);
- nbox = REGION_NUM_RECTS(&region);
- pbox = box;
-
- ret = glamor_composite_choose_shader(op, temp_src, NULL, dst,
- temp_src_priv, NULL, dest_pixmap_priv,
- &key, &shader, &op_info, &saved_source_format);
- if (ret == FALSE) {
- DEBUGF("can not set the shader program for composite\n");
- goto TRAPEZOID_RESET_GL;
- }
- glamor_set_destination_pixmap_priv_nc(dest_pixmap_priv);
- glamor_composite_set_shader_blend(dest_pixmap_priv, &key, shader, &op_info);
- glamor_priv->has_source_coords = key.source != SHADER_SOURCE_SOLID;
- glamor_priv->has_mask_coords = (key.mask != SHADER_MASK_NONE &&
- key.mask != SHADER_MASK_SOLID);
-
- dispatch = glamor_get_dispatch(glamor_priv);
-
- glamor_get_drawable_deltas(dst->pDrawable, dest_pixmap,
- &dest_x_off, &dest_y_off);
-
- pixmap_priv_get_dest_scale(dest_pixmap_priv, &dst_xscale, &dst_yscale);
-
- if (glamor_priv->has_source_coords) {
- source_pixmap = glamor_get_drawable_pixmap(temp_src->pDrawable);
- source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
- glamor_get_drawable_deltas(temp_src->pDrawable,
- source_pixmap,
- &source_x_off, &source_y_off);
- pixmap_priv_get_scale(source_pixmap_priv,
- &src_xscale, &src_yscale);
- glamor_picture_get_matrixf(temp_src, src_matrix);
- vert_stride += 3;
- }
-
- if (glamor_priv->has_mask_coords) {
- DEBUGF("Should never have mask coords here!\n");
- ret = FALSE;
- goto TRAPEZOID_RESET_GL;
- }
-
- /* A trapezoid clip with a rectangle will at most generate a hexagon,
- which can be devided into 4 triangles to render. */
- ntriangle_per_loop = (vert_stride * nbox * ntrap * 4) > GLAMOR_COMPOSITE_VBO_VERT_CNT ?
- (GLAMOR_COMPOSITE_VBO_VERT_CNT / vert_stride) : nbox * ntrap * 4;
- ntriangle_per_loop = (ntriangle_per_loop / 4) * 4;
-
- nclip_rect = nbox;
- while (nclip_rect) {
- mclip_rect = (nclip_rect * ntrap * 4) > ntriangle_per_loop ?
- (ntriangle_per_loop / (4 * ntrap)) : nclip_rect;
-
- if (!mclip_rect) {/* Maybe too many traps. */
- mclip_rect = 1;
- ptrap = traps;
- traps_count = ntriangle_per_loop / 4;
- traps_not_completed = ntrap - traps_count;
- } else {
- traps_count = ntrap;
- ptrap = traps;
- traps_not_completed = 0;
- }
-
-NTRAPS_LOOP_AGAIN:
-
- glamor_setup_composite_vbo(screen, mclip_rect * traps_count * 4 * vert_stride);
- clip_processed = mclip_rect;
-
-
- while (mclip_rect--) {
- while (traps_count--) {
- int vtx_num;
- int i;
- float vertices[3*2], source_texcoords[3*2];
-
- DEBUGF("In loop of render trapezoid, nclip_rect = %d, mclip_rect = %d, "
- "clip_processed = %d, traps_count = %d, traps_not_completed = %d\n",
- nclip_rect, mclip_rect, clip_processed, traps_count, traps_not_completed);
-
- if (_glamor_clip_trapezoid_vertex(ptrap, pbox, clipped_vtx, &vtx_num)) {
- for (i = 0; i < vtx_num - 2; i++) {
- int clipped_vtx_tmp[3*2];
-
- clipped_vtx_tmp[0] = clipped_vtx[0];
- clipped_vtx_tmp[1] = clipped_vtx[1];
- clipped_vtx_tmp[2] = clipped_vtx[(i+1)*2];
- clipped_vtx_tmp[3] = clipped_vtx[(i+1)*2 + 1];
- clipped_vtx_tmp[4] = clipped_vtx[(i+2)*2];
- clipped_vtx_tmp[5] = clipped_vtx[(i+2)*2 + 1];
- glamor_set_normalize_tri_vcoords(
- dst_xscale, dst_yscale, clipped_vtx_tmp,
- glamor_priv->yInverted, vertices);
- DEBUGF("vertices of triangle: (%f X %f), (%f X %f), "
- "(%f X %f)\n", vertices[0], vertices[1],
- vertices[2], vertices[3], vertices[4], vertices[5]);
-
-
- if (key.source != SHADER_SOURCE_SOLID) {
- if (src->transform) {
- glamor_set_transformed_normalize_tri_tcoords(
- source_pixmap_priv,
- src_matrix, src_xscale, src_yscale,
- clipped_vtx_tmp,
- glamor_priv->yInverted,
- source_texcoords);
- } else {
- glamor_set_normalize_tri_tcoords(
- src_xscale, src_yscale,
- clipped_vtx_tmp,
- glamor_priv->yInverted,
- source_texcoords);
- }
-
- DEBUGF("source_texcoords of triangle: (%f X %f), "
- "(%f X %f), (%f X %f)\n",
- source_texcoords[0], source_texcoords[1],
- source_texcoords[2], source_texcoords[3],
- source_texcoords[4], source_texcoords[5]);
- }
-
- glamor_emit_composite_triangle(screen, source_texcoords,
- NULL, vertices);
- }
- }
-
- ptrap++;
- }
-
- if (traps_not_completed) { /* one loop of ntraps not completed */
- mclip_rect = 1;
- traps_count = traps_not_completed > (ntriangle_per_loop / 4) ?
- (ntriangle_per_loop / 4) : traps_not_completed;
- traps_not_completed -= traps_count;
- glamor_flush_composite_triangles(screen);
- goto NTRAPS_LOOP_AGAIN;
- } else {
- ptrap = traps;
- traps_count = ntrap;
- }
-
- pbox++;
- }
-
- glamor_flush_composite_triangles(screen);
-
- nclip_rect -= clip_processed;
- }
-
- ret = TRUE;
-
-TRAPEZOID_RESET_GL:
- dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
- dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_MASK);
- dispatch->glDisable(GL_BLEND);
+ ScreenPtr screen = dst->pDrawable->pScreen;
+ glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+ struct shader_key key;
+ glamor_composite_shader *shader = NULL;
+ struct blendinfo op_info;
+ PictFormatShort saved_source_format = 0;
+ PixmapPtr source_pixmap = NULL;
+ PixmapPtr dest_pixmap = NULL;
+ glamor_pixmap_private *source_pixmap_priv = NULL;
+ glamor_pixmap_private *dest_pixmap_priv = NULL;
+ glamor_pixmap_private *temp_src_priv = NULL;
+ int x_temp_src, y_temp_src;
+ int src_width, src_height;
+ int source_x_off, source_y_off;
+ GLfloat src_xscale = 1, src_yscale = 1;
+ int x_dst, y_dst;
+ int dest_x_off, dest_y_off;
+ GLfloat dst_xscale, dst_yscale;
+ BoxRec bounds;
+ PicturePtr temp_src = src;
+ glamor_gl_dispatch *dispatch = NULL;
+ int vert_stride = 3;
+ int ntriangle_per_loop;
+ int nclip_rect;
+ int mclip_rect;
+ int clip_processed;
+ int clipped_vtx[6 * 2];
+ RegionRec region;
+ BoxPtr box = NULL;
+ BoxPtr pbox = NULL;
+ int traps_count = 0;
+ int traps_not_completed = 0;
+ xTrapezoid *ptrap = NULL;
+ int nbox;
+ float src_matrix[9];
+ Bool ret = FALSE;
+
+ /* If a mask format wasn't provided, we get to choose, but behavior should
+ * be as if there was no temporary mask the traps were accumulated into.
+ */
+ if (!mask_format) {
+ if (dst->polyEdge == PolyEdgeSharp)
+ mask_format = PictureMatchFormat(screen, 1, PICT_a1);
+ else
+ mask_format = PictureMatchFormat(screen, 8, PICT_a8);
+ for (; ntrap; ntrap--, traps++)
+ glamor_trapezoids(op, src, dst, mask_format, x_src,
+ y_src, 1, traps);
+ return TRUE;
+ }
+
+ miTrapezoidBounds(ntrap, traps, &bounds);
+ DEBUGF("The bounds for all traps is: bounds.x1 = %d, bounds.x2 = %d, "
+ "bounds.y1 = %d, bounds.y2 = %d\n", bounds.x1, bounds.x2,
+ bounds.y1, bounds.y2);
+
+ /* No area need to render. */
+ if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
+ return TRUE;
+
+ dest_pixmap = glamor_get_drawable_pixmap(dst->pDrawable);
+ dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
+
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)
+ || dest_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+ /* Currently. Always fallback to cpu if destination is in CPU memory. */
+ ret = FALSE;
+ DEBUGF("dst pixmap has no FBO.\n");
+ goto TRAPEZOID_OUT;
+ }
+
+ if (src->pDrawable) {
+ source_pixmap = glamor_get_drawable_pixmap(src->pDrawable);
+ source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
+ temp_src_priv = source_pixmap_priv;
+ if (source_pixmap_priv
+ && (source_pixmap_priv->type == GLAMOR_DRM_ONLY
+ || source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE)) {
+ ret = FALSE;
+ goto TRAPEZOID_OUT;
+ }
+ }
+
+ x_dst = bounds.x1;
+ y_dst = bounds.y1;
+
+ src_width = bounds.x2 - bounds.x1;
+ src_height = bounds.y2 - bounds.y1;
+
+ x_temp_src = x_src + bounds.x1 - (traps[0].left.p1.x >> 16);
+ y_temp_src = y_src + bounds.y1 - (traps[0].left.p1.y >> 16);
+
+ if ((!src->pDrawable && (src->pSourcePict->type != SourcePictTypeSolidFill)) //1. The Gradient case.
+ /* 2. Has no fbo but can upload. */
+ || (src->pDrawable && !GLAMOR_PIXMAP_PRIV_HAS_FBO(source_pixmap_priv)
+ && ((src_width * src_height * 4 <
+ source_pixmap->drawable.width * source_pixmap->drawable.height)
+ || !glamor_check_fbo_size(glamor_priv,
+ source_pixmap->drawable.width,
+ source_pixmap->drawable.height)))) {
+
+ if (!glamor_check_fbo_size(glamor_priv, src_width, src_height)) {
+ ret = FALSE;
+ goto TRAPEZOID_OUT;
+ }
+ temp_src = glamor_convert_gradient_picture(screen, src,
+ x_src, y_src,
+ src_width, src_height);
+ if (!temp_src) {
+ temp_src = src;
+ ret = FALSE;
+ DEBUGF("Convert gradient picture failed\n");
+ goto TRAPEZOID_OUT;
+ }
+ temp_src_priv =
+ glamor_get_pixmap_private((PixmapPtr) temp_src->pDrawable);
+ x_temp_src = y_temp_src = 0;
+ }
+
+ x_dst += dst->pDrawable->x;
+ y_dst += dst->pDrawable->y;
+ if (temp_src->pDrawable) {
+ x_temp_src += temp_src->pDrawable->x;
+ y_temp_src += temp_src->pDrawable->y;
+ }
+
+ if (!miComputeCompositeRegion(&region,
+ temp_src, NULL, dst,
+ x_temp_src, y_temp_src,
+ 0, 0, x_dst, y_dst, src_width, src_height)) {
+ DEBUGF("All the regions are clipped out, do nothing\n");
+ goto TRAPEZOID_OUT;
+ }
+
+ box = REGION_RECTS(&region);
+ nbox = REGION_NUM_RECTS(&region);
+ pbox = box;
+
+ ret = glamor_composite_choose_shader(op, temp_src, NULL, dst,
+ temp_src_priv, NULL, dest_pixmap_priv,
+ &key, &shader, &op_info,
+ &saved_source_format);
+ if (ret == FALSE) {
+ DEBUGF("can not set the shader program for composite\n");
+ goto TRAPEZOID_RESET_GL;
+ }
+ glamor_set_destination_pixmap_priv_nc(dest_pixmap_priv);
+ glamor_composite_set_shader_blend(dest_pixmap_priv, &key, shader, &op_info);
+ glamor_priv->has_source_coords = key.source != SHADER_SOURCE_SOLID;
+ glamor_priv->has_mask_coords = (key.mask != SHADER_MASK_NONE &&
+ key.mask != SHADER_MASK_SOLID);
+
+ dispatch = glamor_get_dispatch(glamor_priv);
+
+ glamor_get_drawable_deltas(dst->pDrawable, dest_pixmap,
+ &dest_x_off, &dest_y_off);
+
+ pixmap_priv_get_dest_scale(dest_pixmap_priv, &dst_xscale, &dst_yscale);
+
+ if (glamor_priv->has_source_coords) {
+ source_pixmap = glamor_get_drawable_pixmap(temp_src->pDrawable);
+ source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
+ glamor_get_drawable_deltas(temp_src->pDrawable,
+ source_pixmap, &source_x_off, &source_y_off);
+ pixmap_priv_get_scale(source_pixmap_priv, &src_xscale, &src_yscale);
+ glamor_picture_get_matrixf(temp_src, src_matrix);
+ vert_stride += 3;
+ }
+
+ if (glamor_priv->has_mask_coords) {
+ DEBUGF("Should never have mask coords here!\n");
+ ret = FALSE;
+ goto TRAPEZOID_RESET_GL;
+ }
+
+ /* A trapezoid clip with a rectangle will at most generate a hexagon,
+ which can be devided into 4 triangles to render. */
+ ntriangle_per_loop =
+ (vert_stride * nbox * ntrap * 4) >
+ GLAMOR_COMPOSITE_VBO_VERT_CNT ? (GLAMOR_COMPOSITE_VBO_VERT_CNT /
+ vert_stride) : nbox * ntrap * 4;
+ ntriangle_per_loop = (ntriangle_per_loop / 4) * 4;
+
+ nclip_rect = nbox;
+ while (nclip_rect) {
+ mclip_rect = (nclip_rect * ntrap * 4) > ntriangle_per_loop ?
+ (ntriangle_per_loop / (4 * ntrap)) : nclip_rect;
+
+ if (!mclip_rect) { /* Maybe too many traps. */
+ mclip_rect = 1;
+ ptrap = traps;
+ traps_count = ntriangle_per_loop / 4;
+ traps_not_completed = ntrap - traps_count;
+ }
+ else {
+ traps_count = ntrap;
+ ptrap = traps;
+ traps_not_completed = 0;
+ }
+
+ NTRAPS_LOOP_AGAIN:
+
+ glamor_setup_composite_vbo(screen,
+ mclip_rect * traps_count * 4 * vert_stride);
+ clip_processed = mclip_rect;
+
+ while (mclip_rect--) {
+ while (traps_count--) {
+ int vtx_num;
+ int i;
+ float vertices[3 * 2], source_texcoords[3 * 2];
+
+ DEBUGF
+ ("In loop of render trapezoid, nclip_rect = %d, mclip_rect = %d, "
+ "clip_processed = %d, traps_count = %d, traps_not_completed = %d\n",
+ nclip_rect, mclip_rect, clip_processed, traps_count,
+ traps_not_completed);
+
+ if (_glamor_clip_trapezoid_vertex
+ (ptrap, pbox, clipped_vtx, &vtx_num)) {
+ for (i = 0; i < vtx_num - 2; i++) {
+ int clipped_vtx_tmp[3 * 2];
+
+ clipped_vtx_tmp[0] = clipped_vtx[0];
+ clipped_vtx_tmp[1] = clipped_vtx[1];
+ clipped_vtx_tmp[2] = clipped_vtx[(i + 1) * 2];
+ clipped_vtx_tmp[3] = clipped_vtx[(i + 1) * 2 + 1];
+ clipped_vtx_tmp[4] = clipped_vtx[(i + 2) * 2];
+ clipped_vtx_tmp[5] = clipped_vtx[(i + 2) * 2 + 1];
+ glamor_set_normalize_tri_vcoords(dst_xscale, dst_yscale,
+ clipped_vtx_tmp,
+ glamor_priv->yInverted,
+ vertices);
+ DEBUGF("vertices of triangle: (%f X %f), (%f X %f), "
+ "(%f X %f)\n", vertices[0], vertices[1],
+ vertices[2], vertices[3], vertices[4],
+ vertices[5]);
+
+ if (key.source != SHADER_SOURCE_SOLID) {
+ if (src->transform) {
+ glamor_set_transformed_normalize_tri_tcoords
+ (source_pixmap_priv, src_matrix, src_xscale,
+ src_yscale, clipped_vtx_tmp,
+ glamor_priv->yInverted, source_texcoords);
+ }
+ else {
+ glamor_set_normalize_tri_tcoords(src_xscale,
+ src_yscale,
+ clipped_vtx_tmp,
+ glamor_priv->
+ yInverted,
+ source_texcoords);
+ }
+
+ DEBUGF("source_texcoords of triangle: (%f X %f), "
+ "(%f X %f), (%f X %f)\n",
+ source_texcoords[0], source_texcoords[1],
+ source_texcoords[2], source_texcoords[3],
+ source_texcoords[4], source_texcoords[5]);
+ }
+
+ glamor_emit_composite_triangle(screen, source_texcoords,
+ NULL, vertices);
+ }
+ }
+
+ ptrap++;
+ }
+
+ if (traps_not_completed) { /* one loop of ntraps not completed */
+ mclip_rect = 1;
+ traps_count = traps_not_completed > (ntriangle_per_loop / 4) ?
+ (ntriangle_per_loop / 4) : traps_not_completed;
+ traps_not_completed -= traps_count;
+ glamor_flush_composite_triangles(screen);
+ goto NTRAPS_LOOP_AGAIN;
+ }
+ else {
+ ptrap = traps;
+ traps_count = ntrap;
+ }
+
+ pbox++;
+ }
+
+ glamor_flush_composite_triangles(screen);
+
+ nclip_rect -= clip_processed;
+ }
+
+ ret = TRUE;
+
+ TRAPEZOID_RESET_GL:
+ dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+ dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_MASK);
+ dispatch->glDisable(GL_BLEND);
#ifndef GLAMOR_GLES2
- dispatch->glActiveTexture(GL_TEXTURE0);
- dispatch->glDisable(GL_TEXTURE_2D);
- dispatch->glActiveTexture(GL_TEXTURE1);
- dispatch->glDisable(GL_TEXTURE_2D);
+ dispatch->glActiveTexture(GL_TEXTURE0);
+ dispatch->glDisable(GL_TEXTURE_2D);
+ dispatch->glActiveTexture(GL_TEXTURE1);
+ dispatch->glDisable(GL_TEXTURE_2D);
#endif
- dispatch->glUseProgram(0);
-
-TRAPEZOID_OUT:
- if (box) {
- REGION_UNINIT(dst->pDrawable->pScreen, &region);
- }
-
- if (temp_src != src) {
- FreePicture(temp_src, 0);
- } else {
- if (saved_source_format) {
- src->format = saved_source_format;
- }
- }
-
- if (dispatch) {
- glamor_put_dispatch(glamor_priv);
- }
-
- return ret;
+ dispatch->glUseProgram(0);
+
+ TRAPEZOID_OUT:
+ if (box) {
+ REGION_UNINIT(dst->pDrawable->pScreen, &region);
+ }
+
+ if (temp_src != src) {
+ FreePicture(temp_src, 0);
+ }
+ else {
+ if (saved_source_format) {
+ src->format = saved_source_format;
+ }
+ }
+
+ if (dispatch) {
+ glamor_put_dispatch(glamor_priv);
+ }
+
+ return ret;
}
void
glamor_init_trapezoid_shader(ScreenPtr screen)
{
- glamor_screen_private *glamor_priv;
- glamor_gl_dispatch *dispatch;
- GLint fs_prog, vs_prog;
-
- const char *trapezoid_vs =
- GLAMOR_DEFAULT_PRECISION
- "attribute vec4 v_position;\n"
- "attribute vec2 v_texcoord;\n"
- /* v_top_bottom, v_left_param and v_right_param contain the
- constant value for all the vertex of one rect. Using uniform
- is more suitable but we need to reset the uniform variables
- for every rect rendering and can not use the vbo, which causes
- performance loss. So we set these attributes to same value
- for every vertex of one rect and so it is also a constant in FS */
- "attribute vec2 v_top_bottom;\n"
- "attribute vec4 v_left_param;\n"
- "attribute vec4 v_right_param;\n"
- "\n"
- "varying vec2 source_texture;\n"
- "varying float trap_top;\n"
- "varying float trap_bottom;\n"
- "varying float trap_left_x;\n"
- "varying float trap_left_y;\n"
- "varying float trap_left_slope;\n"
- "varying float trap_left_vertical_f;\n"
- "varying float trap_right_x;\n"
- "varying float trap_right_y;\n"
- "varying float trap_right_slope;\n"
- "varying float trap_right_vertical_f;\n"
- "\n"
- "void main()\n"
- "{\n"
- " gl_Position = v_position;\n"
- " source_texture = v_texcoord.xy;\n"
- " trap_top = v_top_bottom.x;\n"
- " trap_bottom = v_top_bottom.y;\n"
- " \n"
- " trap_left_x = v_left_param.x;\n"
- " trap_left_y = v_left_param.y;\n"
- " trap_left_slope = v_left_param.z;\n"
- " trap_left_vertical_f = v_left_param.w;\n"
- " \n"
- " trap_right_x = v_right_param.x;\n"
- " trap_right_y = v_right_param.y;\n"
- " trap_right_slope = v_right_param.z;\n"
- " trap_right_vertical_f = v_right_param.w;\n"
- "}\n";
-
- /*
- * Because some GL fill function do not support the MultSample
- * anti-alias, we need to do the MSAA here. This manner like
- * pixman, will caculate the value of area in trapezoid dividing
- * the totol area for each pixel, as follow:
- |
- ----+------------------------------------------------------>
- |
- | -------------
- | / \
- | / \
- | / \
- | / +----------------+
- | / |.....\ |
- | / |......\ |
- | / |.......\ |
- | / |........\ |
- | /-------------------+---------\ |
- | | |
- | | |
- | +----------------+
- |
- \|/
-
- */
- const char *trapezoid_fs =
- GLAMOR_DEFAULT_PRECISION
- "varying vec2 source_texture; \n"
- "varying float trap_top; \n"
- "varying float trap_bottom; \n"
- "varying float trap_left_x; \n"
- "varying float trap_left_y; \n"
- "varying float trap_left_slope; \n"
- "varying float trap_left_vertical_f; \n"
- "varying float trap_right_x; \n"
- "varying float trap_right_y; \n"
- "varying float trap_right_slope; \n"
- "varying float trap_right_vertical_f; \n"
- "float x_per_pix = 1.0;"
- "float y_per_pix = 1.0;"
- "\n"
- "float get_alpha_val() \n"
- "{ \n"
- " float x_up_cut_left; \n"
- " float x_bottom_cut_left; \n"
- " float x_up_cut_right; \n"
- " float x_bottom_cut_right; \n"
- " bool trap_left_vertical;\n"
- " bool trap_right_vertical;\n"
- " if (abs(trap_left_vertical_f - 1.0) <= 0.0001)\n"
- " trap_left_vertical = true;\n"
- " else\n"
- " trap_left_vertical = false;\n"
- " if (abs(trap_right_vertical_f - 1.0) <= 0.0001)\n"
- " trap_right_vertical = true;\n"
- " else\n"
- " trap_right_vertical = false;\n"
- " \n"
- " if(trap_left_vertical == true) { \n"
- " x_up_cut_left = trap_left_x; \n"
- " x_bottom_cut_left = trap_left_x; \n"
- " } else { \n"
- " x_up_cut_left = trap_left_x \n"
- " + (source_texture.y - y_per_pix/2.0 - trap_left_y) \n"
- " / trap_left_slope; \n"
- " x_bottom_cut_left = trap_left_x \n"
- " + (source_texture.y + y_per_pix/2.0 - trap_left_y) \n"
- " / trap_left_slope; \n"
- " } \n"
- " \n"
- " if(trap_right_vertical == true) { \n"
- " x_up_cut_right = trap_right_x; \n"
- " x_bottom_cut_right = trap_right_x; \n"
- " } else { \n"
- " x_up_cut_right = trap_right_x \n"
- " + (source_texture.y - y_per_pix/2.0 - trap_right_y) \n"
- " / trap_right_slope; \n"
- " x_bottom_cut_right = trap_right_x \n"
- " + (source_texture.y + y_per_pix/2.0 - trap_right_y) \n"
- " / trap_right_slope; \n"
- " } \n"
- " \n"
- " if((x_up_cut_left <= source_texture.x - x_per_pix/2.0) && \n"
- " (x_bottom_cut_left <= source_texture.x - x_per_pix/2.0) && \n"
- " (x_up_cut_right >= source_texture.x + x_per_pix/2.0) && \n"
- " (x_bottom_cut_right >= source_texture.x + x_per_pix/2.0) && \n"
- " (trap_top <= source_texture.y - y_per_pix/2.0) && \n"
- " (trap_bottom >= source_texture.y + y_per_pix/2.0)) { \n"
- // The complete inside case.
- " return 1.0; \n"
- " } else if((trap_top > source_texture.y + y_per_pix/2.0) || \n"
- " (trap_bottom < source_texture.y - y_per_pix/2.0)) { \n"
- // The complete outside. Above the top or Below the bottom.
- " return 0.0; \n"
- " } else { \n"
- " if((x_up_cut_right < source_texture.x - x_per_pix/2.0 && \n"
- " x_bottom_cut_right < source_texture.x - x_per_pix/2.0) \n"
- " || (x_up_cut_left > source_texture.x + x_per_pix/2.0 && \n"
- " x_bottom_cut_left > source_texture.x + x_per_pix/2.0)) { \n"
- // The complete outside. At Left or Right of the trapezoide.
- " return 0.0; \n"
- " } \n"
- " } \n"
- // Get here, the pix is partly inside the trapezoid.
- " { \n"
- " float percent = 0.0; \n"
- " float up = (source_texture.y - y_per_pix/2.0) >= trap_top ? \n"
- " (source_texture.y - y_per_pix/2.0) : trap_top; \n"
- " float bottom = (source_texture.y + y_per_pix/2.0) <= trap_bottom ? \n"
- " (source_texture.y + y_per_pix/2.0) : trap_bottom; \n"
- " float left = source_texture.x - x_per_pix/2.0; \n"
- " float right = source_texture.x + x_per_pix/2.0; \n"
- " \n"
- " percent = (bottom - up) / y_per_pix; \n"
- " \n"
- " if(trap_left_vertical == true) { \n"
- " if(trap_left_x > source_texture.x - x_per_pix/2.0 && \n"
- " trap_left_x < source_texture.x + x_per_pix/2.0) \n"
- " left = trap_left_x; \n"
- " } \n"
- " if(trap_right_vertical == true) { \n"
- " if(trap_right_x > source_texture.x - x_per_pix/2.0 && \n"
- " trap_right_x < source_texture.x + x_per_pix/2.0) \n"
- " right = trap_right_x; \n"
- " } \n"
- " if((up >= bottom) || (left >= right)) \n"
- " return 0.0; \n"
- " \n"
- " percent = percent * ((right - left)/x_per_pix); \n"
- " if(trap_left_vertical == true && trap_right_vertical == true) \n"
- " return percent; \n"
- " \n"
- " if(trap_left_vertical != true) { \n"
- " float area; \n"
- // the slope should never be 0.0 here
- " float up_x = trap_left_x + (up - trap_left_y)/trap_left_slope; \n"
- " float bottom_x = trap_left_x + (bottom - trap_left_y)/trap_left_slope; \n"
- " if(trap_left_slope < 0.0 && up_x > left) { \n"
- /* case 1
- |
- ----+------------------------------------->
- | /
- | /
- | +---/--------+
- | | /.........|
- | | /..........|
- | |/...........|
- | /............|
- | /|............|
- | +------------+
- |
- \|/
- */
- " float left_y = trap_left_y + trap_left_slope*(left - trap_left_x); \n"
- " if((up_x > left) && (left_y > up)) { \n"
- " area = 0.5 * (up_x - left) * (left_y - up); \n"
- " if(up_x > right) { \n"
- " float right_y = trap_left_y \n"
- " + trap_left_slope*(right - trap_left_x); \n"
- " area = area - 0.5 * (up_x - right) * (right_y - up); \n"
- " } \n"
- " if(left_y > bottom) { \n"
- " area = area - 0.5 * (bottom_x - left) * (left_y - bottom); \n"
- " } \n"
- " } else { \n"
- " area = 0.0; \n"
- " } \n"
- " percent = percent * (1.0 - (area/((right-left)*(bottom-up)))); \n"
- " } else if(trap_left_slope > 0.0 && bottom_x > left) { \n"
- /* case 2
- |
- ----+------------------------------------->
- | \
- | \
- | +\-----------+
- | | \..........|
- | | \.........|
- | | \........|
- | | \.......|
- | | \......|
- | +------\-----+
- | \
- | \
- \|/
- */
- " float right_y = trap_left_y + trap_left_slope*(right - trap_left_x); \n"
- " if((up_x < right) && (right_y > up)) { \n"
- " area = 0.5 * (right - up_x) * (right_y - up); \n"
- " if(up_x < left) { \n"
- " float left_y = trap_left_y \n"
- " + trap_left_slope*(left - trap_left_x); \n"
- " area = area - 0.5 * (left - up_x) * (left_y - up); \n"
- " } \n"
- " if(right_y > bottom) { \n"
- " area = area - 0.5 * (right - bottom_x) * (right_y - bottom); \n"
- " } \n"
- " } else { \n"
- " area = 0.0; \n"
- " } \n"
- " percent = percent * (area/((right-left)*(bottom-up))); \n"
- " } \n"
- " } \n"
- " \n"
- " if(trap_right_vertical != true) { \n"
- " float area; \n"
- // the slope should never be 0.0 here
- " float up_x = trap_right_x + (up - trap_right_y)/trap_right_slope; \n"
- " float bottom_x = trap_right_x + (bottom - trap_right_y)/trap_right_slope; \n"
- " if(trap_right_slope < 0.0 && bottom_x < right) { \n"
- /* case 3
- |
- ----+------------------------------------->
- | /
- | +--------/---+
- | |......./ |
- | |....../ |
- | |...../ |
- | |..../ |
- | |.../ |
- | +--/---------+
- | /
- |
- \|/
- */
- " float left_y = trap_right_y + trap_right_slope*(left - trap_right_x); \n"
- " if((up_x > left) && (left_y > up)) { \n"
- " area = 0.5 * (up_x - left) * (left_y - up); \n"
- " if(up_x > right) { \n"
- " float right_y = trap_right_y \n"
- " + trap_right_slope*(right - trap_right_x); \n"
- " area = area - 0.5 * (up_x - right) * (right_y - up); \n"
- " } \n"
- " if(left_y > bottom) { \n"
- " area = area - 0.5 * (bottom_x - left) * (left_y - bottom); \n"
- " } \n"
- " } else { \n"
- " area = 0.0; \n"
- " } \n"
- " percent = percent * (area/((right-left)*(bottom-up))); \n"
- " } else if(trap_right_slope > 0.0 && up_x < right) { \n"
- /* case 4
- |
- ----+------------------------------------->
- | \
- | +--------\---+
- | |.........\ |
- | |..........\ |
- | |...........\|
- | |............\
- | |............|\
- | +------------+ \
- | \
- |
- \|/
- */
- " float right_y = trap_right_y + trap_right_slope*(right - trap_right_x); \n"
- " if((up_x < right) && (right_y > up)) { \n"
- " area = 0.5 * (right - up_x) * (right_y - up); \n"
- " if(up_x < left) { \n"
- " float left_y = trap_right_y \n"
- " + trap_right_slope*(left - trap_right_x); \n"
- " area = area - 0.5 * (left - up_x) * (left_y - up); \n"
- " } \n"
- " if(right_y > bottom) { \n"
- " area = area - 0.5 * (right - bottom_x) * (right_y - bottom); \n"
- " } \n"
- " } else { \n"
- " area = 0.0; \n"
- " } \n"
- " percent = percent * (1.0 - (area/((right-left)*(bottom-up)))); \n"
- " } \n"
- " } \n"
- " \n"
- " return percent; \n"
- " } \n"
- "} \n"
- "\n"
- "void main() \n"
- "{ \n"
- " float alpha_val = get_alpha_val(); \n"
- " gl_FragColor = vec4(0.0, 0.0, 0.0, alpha_val); \n"
- "}\n";
-
- glamor_priv = glamor_get_screen_private(screen);
- dispatch = glamor_get_dispatch(glamor_priv);
-
- glamor_priv->trapezoid_prog = dispatch->glCreateProgram();
-
- vs_prog = glamor_compile_glsl_prog(dispatch,
- GL_VERTEX_SHADER, trapezoid_vs);
- fs_prog = glamor_compile_glsl_prog(dispatch,
- GL_FRAGMENT_SHADER, trapezoid_fs);
-
- dispatch->glAttachShader(glamor_priv->trapezoid_prog, vs_prog);
- dispatch->glAttachShader(glamor_priv->trapezoid_prog, fs_prog);
-
- dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
- GLAMOR_VERTEX_POS, "v_positionsition");
- dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
- GLAMOR_VERTEX_SOURCE, "v_texcoord");
- dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
- GLAMOR_VERTEX_TOP_BOTTOM, "v_top_bottom");
- dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
- GLAMOR_VERTEX_LEFT_PARAM, "v_left_param");
- dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
- GLAMOR_VERTEX_RIGHT_PARAM, "v_right_param");
-
- glamor_link_glsl_prog(dispatch, glamor_priv->trapezoid_prog);
-
- dispatch->glUseProgram(0);
-
- glamor_put_dispatch(glamor_priv);
+ glamor_screen_private *glamor_priv;
+ glamor_gl_dispatch *dispatch;
+ GLint fs_prog, vs_prog;
+
+ const char *trapezoid_vs =
+ GLAMOR_DEFAULT_PRECISION
+ "attribute vec4 v_position;\n"
+ "attribute vec2 v_texcoord;\n"
+ /* v_top_bottom, v_left_param and v_right_param contain the
+ constant value for all the vertex of one rect. Using uniform
+ is more suitable but we need to reset the uniform variables
+ for every rect rendering and can not use the vbo, which causes
+ performance loss. So we set these attributes to same value
+ for every vertex of one rect and so it is also a constant in FS */
+ "attribute vec2 v_top_bottom;\n"
+ "attribute vec4 v_left_param;\n"
+ "attribute vec4 v_right_param;\n"
+ "\n"
+ "varying vec2 source_texture;\n"
+ "varying float trap_top;\n"
+ "varying float trap_bottom;\n"
+ "varying float trap_left_x;\n"
+ "varying float trap_left_y;\n"
+ "varying float trap_left_slope;\n"
+ "varying float trap_left_vertical_f;\n"
+ "varying float trap_right_x;\n"
+ "varying float trap_right_y;\n"
+ "varying float trap_right_slope;\n"
+ "varying float trap_right_vertical_f;\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = v_position;\n"
+ " source_texture = v_texcoord.xy;\n"
+ " trap_top = v_top_bottom.x;\n"
+ " trap_bottom = v_top_bottom.y;\n"
+ " \n"
+ " trap_left_x = v_left_param.x;\n"
+ " trap_left_y = v_left_param.y;\n"
+ " trap_left_slope = v_left_param.z;\n"
+ " trap_left_vertical_f = v_left_param.w;\n"
+ " \n"
+ " trap_right_x = v_right_param.x;\n"
+ " trap_right_y = v_right_param.y;\n"
+ " trap_right_slope = v_right_param.z;\n"
+ " trap_right_vertical_f = v_right_param.w;\n"
+ "}\n";
+
+ /*
+ * Because some GL fill function do not support the MultSample
+ * anti-alias, we need to do the MSAA here. This manner like
+ * pixman, will caculate the value of area in trapezoid dividing
+ * the totol area for each pixel, as follow:
+ |
+ ----+------------------------------------------------------>
+ |
+ | -------------
+ | / \
+ | / \
+ | / \
+ | / +----------------+
+ | / |.....\ |
+ | / |......\ |
+ | / |.......\ |
+ | / |........\ |
+ | /-------------------+---------\ |
+ | | |
+ | | |
+ | +----------------+
+ |
+ \|/
+
+ */
+ const char *trapezoid_fs =
+ GLAMOR_DEFAULT_PRECISION
+ "varying vec2 source_texture; \n"
+ "varying float trap_top; \n"
+ "varying float trap_bottom; \n"
+ "varying float trap_left_x; \n"
+ "varying float trap_left_y; \n"
+ "varying float trap_left_slope; \n"
+ "varying float trap_left_vertical_f; \n"
+ "varying float trap_right_x; \n"
+ "varying float trap_right_y; \n"
+ "varying float trap_right_slope; \n"
+ "varying float trap_right_vertical_f; \n"
+ "float x_per_pix = 1.0;"
+ "float y_per_pix = 1.0;"
+ "\n"
+ "float get_alpha_val() \n"
+ "{ \n"
+ " float x_up_cut_left; \n"
+ " float x_bottom_cut_left; \n"
+ " float x_up_cut_right; \n"
+ " float x_bottom_cut_right; \n"
+ " bool trap_left_vertical;\n"
+ " bool trap_right_vertical;\n"
+ " if (abs(trap_left_vertical_f - 1.0) <= 0.0001)\n"
+ " trap_left_vertical = true;\n"
+ " else\n"
+ " trap_left_vertical = false;\n"
+ " if (abs(trap_right_vertical_f - 1.0) <= 0.0001)\n"
+ " trap_right_vertical = true;\n"
+ " else\n"
+ " trap_right_vertical = false;\n"
+ " \n"
+ " if(trap_left_vertical == true) { \n"
+ " x_up_cut_left = trap_left_x; \n"
+ " x_bottom_cut_left = trap_left_x; \n"
+ " } else { \n"
+ " x_up_cut_left = trap_left_x \n"
+ " + (source_texture.y - y_per_pix/2.0 - trap_left_y) \n"
+ " / trap_left_slope; \n"
+ " x_bottom_cut_left = trap_left_x \n"
+ " + (source_texture.y + y_per_pix/2.0 - trap_left_y) \n"
+ " / trap_left_slope; \n"
+ " } \n"
+ " \n"
+ " if(trap_right_vertical == true) { \n"
+ " x_up_cut_right = trap_right_x; \n"
+ " x_bottom_cut_right = trap_right_x; \n"
+ " } else { \n"
+ " x_up_cut_right = trap_right_x \n"
+ " + (source_texture.y - y_per_pix/2.0 - trap_right_y) \n"
+ " / trap_right_slope; \n"
+ " x_bottom_cut_right = trap_right_x \n"
+ " + (source_texture.y + y_per_pix/2.0 - trap_right_y) \n"
+ " / trap_right_slope; \n"
+ " } \n"
+ " \n"
+ " if((x_up_cut_left <= source_texture.x - x_per_pix/2.0) && \n"
+ " (x_bottom_cut_left <= source_texture.x - x_per_pix/2.0) && \n"
+ " (x_up_cut_right >= source_texture.x + x_per_pix/2.0) && \n"
+ " (x_bottom_cut_right >= source_texture.x + x_per_pix/2.0) && \n"
+ " (trap_top <= source_texture.y - y_per_pix/2.0) && \n"
+ " (trap_bottom >= source_texture.y + y_per_pix/2.0)) { \n"
+ // The complete inside case.
+ " return 1.0; \n"
+ " } else if((trap_top > source_texture.y + y_per_pix/2.0) || \n"
+ " (trap_bottom < source_texture.y - y_per_pix/2.0)) { \n"
+ // The complete outside. Above the top or Below the bottom.
+ " return 0.0; \n"
+ " } else { \n"
+ " if((x_up_cut_right < source_texture.x - x_per_pix/2.0 && \n"
+ " x_bottom_cut_right < source_texture.x - x_per_pix/2.0) \n"
+ " || (x_up_cut_left > source_texture.x + x_per_pix/2.0 && \n"
+ " x_bottom_cut_left > source_texture.x + x_per_pix/2.0)) { \n"
+ // The complete outside. At Left or Right of the trapezoide.
+ " return 0.0; \n"
+ " } \n"
+ " } \n"
+ // Get here, the pix is partly inside the trapezoid.
+ " { \n"
+ " float percent = 0.0; \n"
+ " float up = (source_texture.y - y_per_pix/2.0) >= trap_top ? \n"
+ " (source_texture.y - y_per_pix/2.0) : trap_top; \n"
+ " float bottom = (source_texture.y + y_per_pix/2.0) <= trap_bottom ? \n"
+ " (source_texture.y + y_per_pix/2.0) : trap_bottom; \n"
+ " float left = source_texture.x - x_per_pix/2.0; \n"
+ " float right = source_texture.x + x_per_pix/2.0; \n"
+ " \n"
+ " percent = (bottom - up) / y_per_pix; \n"
+ " \n"
+ " if(trap_left_vertical == true) { \n"
+ " if(trap_left_x > source_texture.x - x_per_pix/2.0 && \n"
+ " trap_left_x < source_texture.x + x_per_pix/2.0) \n"
+ " left = trap_left_x; \n"
+ " } \n"
+ " if(trap_right_vertical == true) { \n"
+ " if(trap_right_x > source_texture.x - x_per_pix/2.0 && \n"
+ " trap_right_x < source_texture.x + x_per_pix/2.0) \n"
+ " right = trap_right_x; \n"
+ " } \n"
+ " if((up >= bottom) || (left >= right)) \n"
+ " return 0.0; \n"
+ " \n"
+ " percent = percent * ((right - left)/x_per_pix); \n"
+ " if(trap_left_vertical == true && trap_right_vertical == true) \n"
+ " return percent; \n"
+ " \n"
+ " if(trap_left_vertical != true) { \n"
+ " float area; \n"
+ // the slope should never be 0.0 here
+ " float up_x = trap_left_x + (up - trap_left_y)/trap_left_slope; \n"
+ " float bottom_x = trap_left_x + (bottom - trap_left_y)/trap_left_slope; \n"
+ " if(trap_left_slope < 0.0 && up_x > left) { \n"
+ /* case 1
+ |
+ ----+------------------------------------->
+ | /
+ | /
+ | +---/--------+
+ | | /.........|
+ | | /..........|
+ | |/...........|
+ | /............|
+ | /|............|
+ | +------------+
+ |
+ \|/
+ */
+ " float left_y = trap_left_y + trap_left_slope*(left - trap_left_x); \n"
+ " if((up_x > left) && (left_y > up)) { \n"
+ " area = 0.5 * (up_x - left) * (left_y - up); \n"
+ " if(up_x > right) { \n"
+ " float right_y = trap_left_y \n"
+ " + trap_left_slope*(right - trap_left_x); \n"
+ " area = area - 0.5 * (up_x - right) * (right_y - up); \n"
+ " } \n"
+ " if(left_y > bottom) { \n"
+ " area = area - 0.5 * (bottom_x - left) * (left_y - bottom); \n"
+ " } \n"
+ " } else { \n"
+ " area = 0.0; \n"
+ " } \n"
+ " percent = percent * (1.0 - (area/((right-left)*(bottom-up)))); \n"
+ " } else if(trap_left_slope > 0.0 && bottom_x > left) { \n"
+ /* case 2
+ |
+ ----+------------------------------------->
+ | \
+ | \
+ | +\-----------+
+ | | \..........|
+ | | \.........|
+ | | \........|
+ | | \.......|
+ | | \......|
+ | +------\-----+
+ | \
+ | \
+ \|/
+ */
+ " float right_y = trap_left_y + trap_left_slope*(right - trap_left_x); \n"
+ " if((up_x < right) && (right_y > up)) { \n"
+ " area = 0.5 * (right - up_x) * (right_y - up); \n"
+ " if(up_x < left) { \n"
+ " float left_y = trap_left_y \n"
+ " + trap_left_slope*(left - trap_left_x); \n"
+ " area = area - 0.5 * (left - up_x) * (left_y - up); \n"
+ " } \n"
+ " if(right_y > bottom) { \n"
+ " area = area - 0.5 * (right - bottom_x) * (right_y - bottom); \n"
+ " } \n"
+ " } else { \n"
+ " area = 0.0; \n"
+ " } \n"
+ " percent = percent * (area/((right-left)*(bottom-up))); \n"
+ " } \n"
+ " } \n"
+ " \n"
+ " if(trap_right_vertical != true) { \n"
+ " float area; \n"
+ // the slope should never be 0.0 here
+ " float up_x = trap_right_x + (up - trap_right_y)/trap_right_slope; \n"
+ " float bottom_x = trap_right_x + (bottom - trap_right_y)/trap_right_slope; \n"
+ " if(trap_right_slope < 0.0 && bottom_x < right) { \n"
+ /* case 3
+ |
+ ----+------------------------------------->
+ | /
+ | +--------/---+
+ | |......./ |
+ | |....../ |
+ | |...../ |
+ | |..../ |
+ | |.../ |
+ | +--/---------+
+ | /
+ |
+ \|/
+ */
+ " float left_y = trap_right_y + trap_right_slope*(left - trap_right_x); \n"
+ " if((up_x > left) && (left_y > up)) { \n"
+ " area = 0.5 * (up_x - left) * (left_y - up); \n"
+ " if(up_x > right) { \n"
+ " float right_y = trap_right_y \n"
+ " + trap_right_slope*(right - trap_right_x); \n"
+ " area = area - 0.5 * (up_x - right) * (right_y - up); \n"
+ " } \n"
+ " if(left_y > bottom) { \n"
+ " area = area - 0.5 * (bottom_x - left) * (left_y - bottom); \n"
+ " } \n"
+ " } else { \n"
+ " area = 0.0; \n"
+ " } \n"
+ " percent = percent * (area/((right-left)*(bottom-up))); \n"
+ " } else if(trap_right_slope > 0.0 && up_x < right) { \n"
+ /* case 4
+ |
+ ----+------------------------------------->
+ | \
+ | +--------\---+
+ | |.........\ |
+ | |..........\ |
+ | |...........\|
+ | |............\
+ | |............|\
+ | +------------+ \
+ | \
+ |
+ \|/
+ */
+ " float right_y = trap_right_y + trap_right_slope*(right - trap_right_x); \n"
+ " if((up_x < right) && (right_y > up)) { \n"
+ " area = 0.5 * (right - up_x) * (right_y - up); \n"
+ " if(up_x < left) { \n"
+ " float left_y = trap_right_y \n"
+ " + trap_right_slope*(left - trap_right_x); \n"
+ " area = area - 0.5 * (left - up_x) * (left_y - up); \n"
+ " } \n"
+ " if(right_y > bottom) { \n"
+ " area = area - 0.5 * (right - bottom_x) * (right_y - bottom); \n"
+ " } \n"
+ " } else { \n"
+ " area = 0.0; \n"
+ " } \n"
+ " percent = percent * (1.0 - (area/((right-left)*(bottom-up)))); \n"
+ " } \n"
+ " } \n"
+ " \n"
+ " return percent; \n"
+ " } \n"
+ "} \n"
+ "\n"
+ "void main() \n"
+ "{ \n"
+ " float alpha_val = get_alpha_val(); \n"
+ " gl_FragColor = vec4(0.0, 0.0, 0.0, alpha_val); \n"
+ "}\n";
+
+ glamor_priv = glamor_get_screen_private(screen);
+ dispatch = glamor_get_dispatch(glamor_priv);
+
+ glamor_priv->trapezoid_prog = dispatch->glCreateProgram();
+
+ vs_prog = glamor_compile_glsl_prog(dispatch,
+ GL_VERTEX_SHADER, trapezoid_vs);
+ fs_prog = glamor_compile_glsl_prog(dispatch,
+ GL_FRAGMENT_SHADER, trapezoid_fs);
+
+ dispatch->glAttachShader(glamor_priv->trapezoid_prog, vs_prog);
+ dispatch->glAttachShader(glamor_priv->trapezoid_prog, fs_prog);
+
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_POS, "v_positionsition");
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_SOURCE, "v_texcoord");
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_TOP_BOTTOM, "v_top_bottom");
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_LEFT_PARAM, "v_left_param");
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_RIGHT_PARAM, "v_right_param");
+
+ glamor_link_glsl_prog(dispatch, glamor_priv->trapezoid_prog);
+
+ dispatch->glUseProgram(0);
+
+ glamor_put_dispatch(glamor_priv);
}
void
glamor_fini_trapezoid_shader(ScreenPtr screen)
{
- glamor_screen_private *glamor_priv;
- glamor_gl_dispatch *dispatch;
+ glamor_screen_private *glamor_priv;
+ glamor_gl_dispatch *dispatch;
- glamor_priv = glamor_get_screen_private(screen);
- dispatch = glamor_get_dispatch(glamor_priv);
- dispatch->glDeleteProgram(glamor_priv->trapezoid_prog);
- glamor_put_dispatch(glamor_priv);
+ glamor_priv = glamor_get_screen_private(screen);
+ dispatch = glamor_get_dispatch(glamor_priv);
+ dispatch->glDeleteProgram(glamor_priv->trapezoid_prog);
+ glamor_put_dispatch(glamor_priv);
}
static Bool
_glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
- xTrapezoid * traps, int ntrap, BoxRec *bounds)
+ xTrapezoid *traps, int ntrap,
+ BoxRec *bounds)
{
- glamor_screen_private *glamor_priv;
- glamor_gl_dispatch *dispatch;
- glamor_pixmap_private *pixmap_priv;
- PixmapPtr pixmap = NULL;
- GLint trapezoid_prog;
- GLfloat xscale, yscale;
- float left_slope, right_slope;
- xTrapezoid *ptrap;
- BoxRec one_trap_bound;
- int nrect_max;
- int i, j;
- float *vertices;
- float params[4];
-
- glamor_priv = glamor_get_screen_private(screen);
- trapezoid_prog = glamor_priv->trapezoid_prog;
-
- pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
- pixmap_priv = glamor_get_pixmap_private(pixmap);
-
- if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)
- || pixmap_priv->type == GLAMOR_TEXTURE_LARGE) { /* should always have here. */
- DEBUGF("GLAMOR_PIXMAP_PRIV_HAS_FBO check failed, fallback\n");
- return FALSE;
- }
-
- /* First, clear all to zero */
- if (!glamor_solid(pixmap, 0, 0, pixmap_priv->base.pixmap->drawable.width,
- pixmap_priv->base.pixmap->drawable.height,
- GXclear, 0xFFFFFFFF, 0)) {
- DEBUGF("glamor_solid failed, fallback\n");
- return FALSE;
- }
-
- dispatch = glamor_get_dispatch(glamor_priv);
-
- glamor_set_destination_pixmap_priv_nc(pixmap_priv);
-
- pixmap_priv_get_dest_scale(pixmap_priv, (&xscale), (&yscale));
-
- dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
- dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
-
- /* Now draw the Trapezoid mask. */
- dispatch->glUseProgram(trapezoid_prog);
-
- dispatch->glEnable(GL_BLEND);
- dispatch->glBlendFunc(GL_ONE, GL_ONE);
-
- nrect_max = GLAMOR_COMPOSITE_VBO_VERT_CNT / (4 * GLAMOR_VERTEX_RIGHT_PARAM);
-
- for (i = 0; i < ntrap;) {
- int mrect;
- int stride;
-
- mrect = (ntrap - i) > nrect_max ? nrect_max : (ntrap - i);
- glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
- stride = glamor_priv->vb_stride / sizeof(float);
-
- for (j = 0; j < mrect; j++) {
- ptrap = traps + i + j;
-
- DEBUGF("--- The parameter of xTrapezoid is:\ntop: %d 0x%x\tbottom: %d 0x%x\n"
- "left: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n"
- "right: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n",
- xFixedToInt(ptrap->top), ptrap->top,
- xFixedToInt(ptrap->bottom), ptrap->bottom,
- xFixedToInt(ptrap->left.p1.x), ptrap->left.p1.x,
- xFixedToInt(ptrap->left.p1.y), ptrap->left.p1.y,
- xFixedToInt(ptrap->left.p2.x), ptrap->left.p2.x,
- xFixedToInt(ptrap->left.p2.y), ptrap->left.p2.y,
- xFixedToInt(ptrap->right.p1.x), ptrap->right.p1.x,
- xFixedToInt(ptrap->right.p1.y), ptrap->right.p1.y,
- xFixedToInt(ptrap->right.p2.x), ptrap->right.p2.x,
- xFixedToInt(ptrap->right.p2.y), ptrap->right.p2.y);
-
- miTrapezoidBounds(1, ptrap, &one_trap_bound);
-
- vertices = (float*)(glamor_priv->vb + glamor_priv->vbo_offset) + 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),
- (one_trap_bound.x2),
- (one_trap_bound.y2),
- glamor_priv->yInverted, vertices, stride);
- DEBUGF("tex_vertices --> leftup : %f X %f, rightup: %f X %f,"
- "rightbottom: %f X %f, leftbottom : %f X %f\n",
- vertices[0], vertices[1],
- vertices[1*stride], vertices[1*stride + 1],
- vertices[2*stride], vertices[2*stride + 1],
- vertices[3*stride], vertices[3*stride + 1]);
-
- /* Need to rebase. */
- one_trap_bound.x1 -= bounds->x1;
- one_trap_bound.x2 -= bounds->x1;
- one_trap_bound.y1 -= bounds->y1;
- one_trap_bound.y2 -= bounds->y1;
-
- vertices -= 2;
-
- glamor_set_normalize_vcoords_ext(pixmap_priv, xscale, yscale,
- one_trap_bound.x1, one_trap_bound.y1,
- one_trap_bound.x2, one_trap_bound.y2,
- glamor_priv->yInverted, vertices, stride);
- DEBUGF("vertices --> leftup : %f X %f, rightup: %f X %f,"
- "rightbottom: %f X %f, leftbottom : %f X %f\n",
- vertices[0], vertices[1],
- vertices[1*stride], vertices[1*stride + 1],
- vertices[2*stride], vertices[2*stride + 1],
- vertices[3*stride], vertices[3*stride + 1]);
- vertices += 4;
-
- /* Set the top and bottom. */
- params[0] = ((float)ptrap->top) / 65536;
- params[1] = ((float)ptrap->bottom) / 65536;
- glamor_set_const_ext(params, 2, vertices, 4, stride);
- vertices += 2;
-
- /* Set the left params. */
- params[0] = ((float)ptrap->left.p1.x) / 65536;
- params[1] = ((float)ptrap->left.p1.y) / 65536;
-
- if (ptrap->left.p1.x == ptrap->left.p2.x) {
- left_slope = 0.0;
- params[3] = 1.0;
- } else {
- left_slope = ((float)(ptrap->left.p1.y - ptrap->left.p2.y))
- / ((float)(ptrap->left.p1.x - ptrap->left.p2.x));
- params[3] = 0.0;
- }
- params[2] = left_slope;
- glamor_set_const_ext(params, 4, vertices, 4, stride);
- vertices += 4;
-
- /* Set the left params. */
- params[0] = ((float)ptrap->right.p1.x) / 65536;
- params[1] = ((float)ptrap->right.p1.y) / 65536;
-
- if (ptrap->right.p1.x == ptrap->right.p2.x) {
- right_slope = 0.0;
- params[3] = 1.0;
- } else {
- right_slope = ((float)(ptrap->right.p1.y - ptrap->right.p2.y))
- / ((float)(ptrap->right.p1.x - ptrap->right.p2.x));
- params[3] = 0.0;
- }
- params[2] = right_slope;
- glamor_set_const_ext(params, 4, vertices, 4, stride);
-
- DEBUGF("trap_top = %f, trap_bottom = %f, "
- "trap_left_x = %f, trap_left_y = %f, left_slope = %f, "
- "trap_right_x = %f, trap_right_y = %f, right_slope = %f\n",
- ((float)ptrap->top) / 65536, ((float)ptrap->bottom) / 65536,
- ((float)ptrap->left.p1.x) / 65536, ((float)ptrap->left.p1.y) / 65536,
- left_slope,
- ((float)ptrap->right.p1.x) / 65536, ((float)ptrap->right.p1.y) / 65536,
- right_slope);
-
- glamor_priv->render_nr_verts += 4;
- glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
- }
-
- i += mrect;
-
- /* Now rendering. */
- if (!glamor_priv->render_nr_verts)
- continue;
-
- if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
- dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
- else {
- dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
- dispatch->glBufferData(GL_ARRAY_BUFFER,
- glamor_priv->vbo_offset,
- glamor_priv->vb, GL_DYNAMIC_DRAW);
- }
+ glamor_screen_private *glamor_priv;
+ glamor_gl_dispatch *dispatch;
+ glamor_pixmap_private *pixmap_priv;
+ PixmapPtr pixmap = NULL;
+ GLint trapezoid_prog;
+ GLfloat xscale, yscale;
+ float left_slope, right_slope;
+ xTrapezoid *ptrap;
+ BoxRec one_trap_bound;
+ int nrect_max;
+ int i, j;
+ float *vertices;
+ float params[4];
+
+ glamor_priv = glamor_get_screen_private(screen);
+ trapezoid_prog = glamor_priv->trapezoid_prog;
+
+ pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+ pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)
+ || pixmap_priv->type == GLAMOR_TEXTURE_LARGE) { /* should always have here. */
+ DEBUGF("GLAMOR_PIXMAP_PRIV_HAS_FBO check failed, fallback\n");
+ return FALSE;
+ }
+
+ /* First, clear all to zero */
+ if (!glamor_solid(pixmap, 0, 0, pixmap_priv->base.pixmap->drawable.width,
+ pixmap_priv->base.pixmap->drawable.height,
+ GXclear, 0xFFFFFFFF, 0)) {
+ DEBUGF("glamor_solid failed, fallback\n");
+ return FALSE;
+ }
+
+ dispatch = glamor_get_dispatch(glamor_priv);
+
+ glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+
+ pixmap_priv_get_dest_scale(pixmap_priv, (&xscale), (&yscale));
+
+ dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+ dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+ /* Now draw the Trapezoid mask. */
+ dispatch->glUseProgram(trapezoid_prog);
+
+ dispatch->glEnable(GL_BLEND);
+ dispatch->glBlendFunc(GL_ONE, GL_ONE);
+
+ nrect_max = GLAMOR_COMPOSITE_VBO_VERT_CNT / (4 * GLAMOR_VERTEX_RIGHT_PARAM);
+
+ for (i = 0; i < ntrap;) {
+ int mrect;
+ int stride;
+
+ mrect = (ntrap - i) > nrect_max ? nrect_max : (ntrap - i);
+ glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
+ stride = glamor_priv->vb_stride / sizeof(float);
+
+ for (j = 0; j < mrect; j++) {
+ ptrap = traps + i + j;
+
+ DEBUGF
+ ("--- The parameter of xTrapezoid is:\ntop: %d 0x%x\tbottom: %d 0x%x\n"
+ "left: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n"
+ "right: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n",
+ xFixedToInt(ptrap->top), ptrap->top,
+ xFixedToInt(ptrap->bottom), ptrap->bottom,
+ xFixedToInt(ptrap->left.p1.x), ptrap->left.p1.x,
+ xFixedToInt(ptrap->left.p1.y), ptrap->left.p1.y,
+ xFixedToInt(ptrap->left.p2.x), ptrap->left.p2.x,
+ xFixedToInt(ptrap->left.p2.y), ptrap->left.p2.y,
+ xFixedToInt(ptrap->right.p1.x), ptrap->right.p1.x,
+ xFixedToInt(ptrap->right.p1.y), ptrap->right.p1.y,
+ xFixedToInt(ptrap->right.p2.x), ptrap->right.p2.x,
+ xFixedToInt(ptrap->right.p2.y), ptrap->right.p2.y);
+
+ miTrapezoidBounds(1, ptrap, &one_trap_bound);
+
+ vertices =
+ (float *) (glamor_priv->vb + glamor_priv->vbo_offset) + 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),
+ (one_trap_bound.x2), (one_trap_bound.y2),
+ glamor_priv->yInverted, vertices, stride);
+ DEBUGF("tex_vertices --> leftup : %f X %f, rightup: %f X %f,"
+ "rightbottom: %f X %f, leftbottom : %f X %f\n", vertices[0],
+ vertices[1], vertices[1 * stride], vertices[1 * stride + 1],
+ vertices[2 * stride], vertices[2 * stride + 1],
+ vertices[3 * stride], vertices[3 * stride + 1]);
+
+ /* Need to rebase. */
+ one_trap_bound.x1 -= bounds->x1;
+ one_trap_bound.x2 -= bounds->x1;
+ one_trap_bound.y1 -= bounds->y1;
+ one_trap_bound.y2 -= bounds->y1;
+
+ vertices -= 2;
+
+ glamor_set_normalize_vcoords_ext(pixmap_priv, xscale, yscale,
+ one_trap_bound.x1,
+ one_trap_bound.y1,
+ one_trap_bound.x2,
+ one_trap_bound.y2,
+ glamor_priv->yInverted, vertices,
+ stride);
+ DEBUGF("vertices --> leftup : %f X %f, rightup: %f X %f,"
+ "rightbottom: %f X %f, leftbottom : %f X %f\n", vertices[0],
+ vertices[1], vertices[1 * stride], vertices[1 * stride + 1],
+ vertices[2 * stride], vertices[2 * stride + 1],
+ vertices[3 * stride], vertices[3 * stride + 1]);
+ vertices += 4;
+
+ /* Set the top and bottom. */
+ params[0] = ((float) ptrap->top) / 65536;
+ params[1] = ((float) ptrap->bottom) / 65536;
+ glamor_set_const_ext(params, 2, vertices, 4, stride);
+ vertices += 2;
+
+ /* Set the left params. */
+ params[0] = ((float) ptrap->left.p1.x) / 65536;
+ params[1] = ((float) ptrap->left.p1.y) / 65536;
+
+ if (ptrap->left.p1.x == ptrap->left.p2.x) {
+ left_slope = 0.0;
+ params[3] = 1.0;
+ }
+ else {
+ left_slope = ((float) (ptrap->left.p1.y - ptrap->left.p2.y))
+ / ((float) (ptrap->left.p1.x - ptrap->left.p2.x));
+ params[3] = 0.0;
+ }
+ params[2] = left_slope;
+ glamor_set_const_ext(params, 4, vertices, 4, stride);
+ vertices += 4;
+
+ /* Set the left params. */
+ params[0] = ((float) ptrap->right.p1.x) / 65536;
+ params[1] = ((float) ptrap->right.p1.y) / 65536;
+
+ if (ptrap->right.p1.x == ptrap->right.p2.x) {
+ right_slope = 0.0;
+ params[3] = 1.0;
+ }
+ else {
+ right_slope = ((float) (ptrap->right.p1.y - ptrap->right.p2.y))
+ / ((float) (ptrap->right.p1.x - ptrap->right.p2.x));
+ params[3] = 0.0;
+ }
+ params[2] = right_slope;
+ glamor_set_const_ext(params, 4, vertices, 4, stride);
+
+ DEBUGF("trap_top = %f, trap_bottom = %f, "
+ "trap_left_x = %f, trap_left_y = %f, left_slope = %f, "
+ "trap_right_x = %f, trap_right_y = %f, right_slope = %f\n",
+ ((float) ptrap->top) / 65536,
+ ((float) ptrap->bottom) / 65536,
+ ((float) ptrap->left.p1.x) / 65536,
+ ((float) ptrap->left.p1.y) / 65536, left_slope,
+ ((float) ptrap->right.p1.x) / 65536,
+ ((float) ptrap->right.p1.y) / 65536, right_slope);
+
+ glamor_priv->render_nr_verts += 4;
+ glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
+ }
+
+ i += mrect;
+
+ /* Now rendering. */
+ if (!glamor_priv->render_nr_verts)
+ continue;
+
+ if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+ dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
+ else {
+ dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+ dispatch->glBufferData(GL_ARRAY_BUFFER,
+ glamor_priv->vbo_offset,
+ glamor_priv->vb, GL_DYNAMIC_DRAW);
+ }
#ifndef GLAMOR_GLES2
- dispatch->glDrawRangeElements(GL_TRIANGLES, 0, glamor_priv->render_nr_verts,
- (glamor_priv->render_nr_verts * 3) / 2,
- GL_UNSIGNED_SHORT, NULL);
+ dispatch->glDrawRangeElements(GL_TRIANGLES, 0,
+ glamor_priv->render_nr_verts,
+ (glamor_priv->render_nr_verts * 3) / 2,
+ GL_UNSIGNED_SHORT, NULL);
#else
- dispatch->glDrawElements(GL_TRIANGLES, (glamor_priv->render_nr_verts * 3) / 2,
- GL_UNSIGNED_SHORT, NULL);
+ dispatch->glDrawElements(GL_TRIANGLES,
+ (glamor_priv->render_nr_verts * 3) / 2,
+ GL_UNSIGNED_SHORT, NULL);
#endif
- }
-
- dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
- dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
- dispatch->glBlendFunc(GL_ONE, GL_ZERO);
- dispatch->glDisable(GL_BLEND);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
- dispatch->glUseProgram(0);
- glamor_put_dispatch(glamor_priv);
- return TRUE;
+ }
+
+ dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+ dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+ dispatch->glBlendFunc(GL_ONE, GL_ZERO);
+ dispatch->glDisable(GL_BLEND);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+ dispatch->glUseProgram(0);
+ glamor_put_dispatch(glamor_priv);
+ return TRUE;
}
-#endif /*GLAMOR_TRAPEZOID_SHADER */
+#endif /*GLAMOR_TRAPEZOID_SHADER */
/**
* Creates an appropriate picture for temp mask use.
*/
static PicturePtr
glamor_create_mask_picture(ScreenPtr screen,
- PicturePtr dst,
- PictFormatPtr pict_format,
- CARD16 width, CARD16 height, int gpu)
+ PicturePtr dst,
+ PictFormatPtr pict_format,
+ CARD16 width, CARD16 height, int gpu)
{
- PixmapPtr pixmap;
- PicturePtr picture;
- int error;
-
- if (!pict_format) {
- if (dst->polyEdge == PolyEdgeSharp)
- pict_format =
- PictureMatchFormat(screen, 1, PICT_a1);
- else
- pict_format =
- PictureMatchFormat(screen, 8, PICT_a8);
- if (!pict_format)
- return 0;
- }
-
- if (gpu) {
- pixmap = glamor_create_pixmap(screen, width, height,
- pict_format->depth, 0);
- } else {
- pixmap = glamor_create_pixmap(screen, 0, 0,
- pict_format->depth,
- GLAMOR_CREATE_PIXMAP_CPU);
- }
-
- if (!pixmap)
- return 0;
- picture = CreatePicture(0, &pixmap->drawable, pict_format,
- 0, 0, serverClient, &error);
- glamor_destroy_pixmap(pixmap);
- return picture;
+ PixmapPtr pixmap;
+ PicturePtr picture;
+ int error;
+
+ if (!pict_format) {
+ if (dst->polyEdge == PolyEdgeSharp)
+ pict_format = PictureMatchFormat(screen, 1, PICT_a1);
+ else
+ pict_format = PictureMatchFormat(screen, 8, PICT_a8);
+ if (!pict_format)
+ return 0;
+ }
+
+ if (gpu) {
+ pixmap = glamor_create_pixmap(screen, width, height,
+ pict_format->depth, 0);
+ }
+ else {
+ pixmap = glamor_create_pixmap(screen, 0, 0,
+ pict_format->depth,
+ GLAMOR_CREATE_PIXMAP_CPU);
+ }
+
+ if (!pixmap)
+ return 0;
+ picture = CreatePicture(0, &pixmap->drawable, pict_format,
+ 0, 0, serverClient, &error);
+ glamor_destroy_pixmap(pixmap);
+ return picture;
}
static int
-_glamor_trapezoid_bounds (int ntrap, xTrapezoid *traps, BoxPtr box)
+_glamor_trapezoid_bounds(int ntrap, xTrapezoid *traps, BoxPtr box)
{
- int has_large_trapezoid = 0;
- box->y1 = MAXSHORT;
- box->y2 = MINSHORT;
- box->x1 = MAXSHORT;
- box->x2 = MINSHORT;
-
- for (; ntrap; ntrap--, traps++) {
- INT16 x1, y1, x2, y2;
-
- if (!xTrapezoidValid(traps))
- continue;
- y1 = xFixedToInt (traps->top);
- if (y1 < box->y1)
- box->y1 = y1;
-
- y2 = xFixedToInt (xFixedCeil (traps->bottom));
- if (y2 > box->y2)
- box->y2 = y2;
-
- x1 = xFixedToInt (min (_glamor_linefixedX (&traps->left, traps->top, FALSE),
- _glamor_linefixedX (&traps->left, traps->bottom, FALSE)));
- if (x1 < box->x1)
- box->x1 = x1;
-
- x2 = xFixedToInt (xFixedCeil (max (_glamor_linefixedX (&traps->right, traps->top, TRUE),
- _glamor_linefixedX (&traps->right, traps->bottom, TRUE))));
- if (x2 > box->x2)
- box->x2 = x2;
-
- if (!has_large_trapezoid && (x2 - x1) > 256 && (y2 - y1) > 32)
- has_large_trapezoid = 1;
- }
-
- return has_large_trapezoid;
+ int has_large_trapezoid = 0;
+
+ box->y1 = MAXSHORT;
+ box->y2 = MINSHORT;
+ box->x1 = MAXSHORT;
+ box->x2 = MINSHORT;
+
+ for (; ntrap; ntrap--, traps++) {
+ INT16 x1, y1, x2, y2;
+
+ if (!xTrapezoidValid(traps))
+ continue;
+ y1 = xFixedToInt(traps->top);
+ if (y1 < box->y1)
+ box->y1 = y1;
+
+ y2 = xFixedToInt(xFixedCeil(traps->bottom));
+ if (y2 > box->y2)
+ box->y2 = y2;
+
+ x1 = xFixedToInt(min
+ (_glamor_linefixedX(&traps->left, traps->top, FALSE),
+ _glamor_linefixedX(&traps->left, traps->bottom,
+ FALSE)));
+ if (x1 < box->x1)
+ box->x1 = x1;
+
+ x2 = xFixedToInt(xFixedCeil
+ (max
+ (_glamor_linefixedX(&traps->right, traps->top, TRUE),
+ _glamor_linefixedX(&traps->right, traps->bottom,
+ TRUE))));
+ if (x2 > box->x2)
+ box->x2 = x2;
+
+ if (!has_large_trapezoid && (x2 - x1) > 256 && (y2 - y1) > 32)
+ has_large_trapezoid = 1;
+ }
+
+ return has_large_trapezoid;
}
/**
@@ -1658,162 +1695,163 @@ static Bool
_glamor_trapezoids(CARD8 op,
PicturePtr src, PicturePtr dst,
PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
- int ntrap, xTrapezoid * traps, Bool fallback)
+ int ntrap, xTrapezoid *traps, Bool fallback)
{
- ScreenPtr screen = dst->pDrawable->pScreen;
- BoxRec bounds;
- PicturePtr picture;
- INT16 x_dst, y_dst;
- INT16 x_rel, y_rel;
- int width, height, stride;
- PixmapPtr pixmap;
- pixman_image_t *image = NULL;
- int ret = 0;
- int has_large_trapezoid;
-
- /* If a mask format wasn't provided, we get to choose, but behavior should
- * be as if there was no temporary mask the traps were accumulated into.
- */
- if (!mask_format) {
- if (dst->polyEdge == PolyEdgeSharp)
- mask_format =
- PictureMatchFormat(screen, 1, PICT_a1);
- else
- mask_format =
- PictureMatchFormat(screen, 8, PICT_a8);
- for (; ntrap; ntrap--, traps++)
- glamor_trapezoids(op, src, dst, mask_format, x_src,
- y_src, 1, traps);
- return TRUE;
- }
-
- has_large_trapezoid = _glamor_trapezoid_bounds(ntrap, traps, &bounds);
- DEBUGF("The bounds for all traps is: bounds.x1 = %d, bounds.x2 = %d, "
- "bounds.y1 = %d, bounds.y2 = %d, ---- ntrap = %d\n", bounds.x1,
- bounds.x2, bounds.y1, bounds.y2, ntrap);
-
- if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
- return TRUE;
-
- x_dst = traps[0].left.p1.x >> 16;
- y_dst = traps[0].left.p1.y >> 16;
-
- width = bounds.x2 - bounds.x1;
- height = bounds.y2 - bounds.y1;
- stride = PixmapBytePad(width, mask_format->depth);
+ ScreenPtr screen = dst->pDrawable->pScreen;
+ BoxRec bounds;
+ PicturePtr picture;
+ INT16 x_dst, y_dst;
+ INT16 x_rel, y_rel;
+ int width, height, stride;
+ PixmapPtr pixmap;
+ pixman_image_t *image = NULL;
+ int ret = 0;
+ int has_large_trapezoid;
+
+ /* If a mask format wasn't provided, we get to choose, but behavior should
+ * be as if there was no temporary mask the traps were accumulated into.
+ */
+ if (!mask_format) {
+ if (dst->polyEdge == PolyEdgeSharp)
+ mask_format = PictureMatchFormat(screen, 1, PICT_a1);
+ else
+ mask_format = PictureMatchFormat(screen, 8, PICT_a8);
+ for (; ntrap; ntrap--, traps++)
+ glamor_trapezoids(op, src, dst, mask_format, x_src,
+ y_src, 1, traps);
+ return TRUE;
+ }
+
+ has_large_trapezoid = _glamor_trapezoid_bounds(ntrap, traps, &bounds);
+ DEBUGF("The bounds for all traps is: bounds.x1 = %d, bounds.x2 = %d, "
+ "bounds.y1 = %d, bounds.y2 = %d, ---- ntrap = %d\n", bounds.x1,
+ bounds.x2, bounds.y1, bounds.y2, ntrap);
+
+ if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
+ return TRUE;
+
+ x_dst = traps[0].left.p1.x >> 16;
+ y_dst = traps[0].left.p1.y >> 16;
+
+ width = bounds.x2 - bounds.x1;
+ height = bounds.y2 - bounds.y1;
+ stride = PixmapBytePad(width, mask_format->depth);
#ifdef GLAMOR_TRAPEZOID_SHADER
- /* We seperate the render to two paths.
- Some GL implemetation do not implement the Anti-Alias for triangles
- and polygen's filling. So when the edge is not vertical or horizontal,
- sawtooth will be obvious. The trapezoid is widely used to render wide
- lines and circles. In these case, the line or circle will be divided
- into a large number of small trapezoids to approximate it, so the sawtooth
- at the edge will cause the result not be acceptable.
- When the depth of the mask is 1, there is no Anti-Alias needed, so we
- use the clip logic to generate the result directly(fast path).
- When the depth is not 1, AA is needed and we use a shader to generate
- a temp mask pixmap.
- */
- if (mask_format->depth == 1) {
- ret = _glamor_trapezoids_with_shader(op, src, dst, mask_format,
- x_src, y_src, ntrap, traps);
- if(ret)
- return TRUE;
- } else {
- if (has_large_trapezoid || ntrap > 256) {
- /* The shader speed is relative slower than pixman when generating big chunk
- trapezoid mask. We fallback to pixman to improve the performance. */
- ;
- } else if (dst->polyMode == PolyModeImprecise) {
- /* The precise mode is that we sample the trapezoid on the centre points of
- an (2*n+1)x(2*n-1) subpixel grid. It is computationally expensive in shader
- and we use inside area ratio to replace it if the polymode == Imprecise. */
- picture = glamor_create_mask_picture(screen, dst, mask_format,
- width, height, 1);
- if (!picture)
- return TRUE;
-
- ret = _glamor_generate_trapezoid_with_shader(screen, picture, traps, ntrap, &bounds);
-
- if (!ret)
- FreePicture(picture, 0);
- }
- }
+ /* We seperate the render to two paths.
+ Some GL implemetation do not implement the Anti-Alias for triangles
+ and polygen's filling. So when the edge is not vertical or horizontal,
+ sawtooth will be obvious. The trapezoid is widely used to render wide
+ lines and circles. In these case, the line or circle will be divided
+ into a large number of small trapezoids to approximate it, so the sawtooth
+ at the edge will cause the result not be acceptable.
+ When the depth of the mask is 1, there is no Anti-Alias needed, so we
+ use the clip logic to generate the result directly(fast path).
+ When the depth is not 1, AA is needed and we use a shader to generate
+ a temp mask pixmap.
+ */
+ if (mask_format->depth == 1) {
+ ret = _glamor_trapezoids_with_shader(op, src, dst, mask_format,
+ x_src, y_src, ntrap, traps);
+ if (ret)
+ return TRUE;
+ }
+ else {
+ if (has_large_trapezoid || ntrap > 256) {
+ /* The shader speed is relative slower than pixman when generating big chunk
+ trapezoid mask. We fallback to pixman to improve the performance. */
+ ;
+ }
+ else if (dst->polyMode == PolyModeImprecise) {
+ /* The precise mode is that we sample the trapezoid on the centre points of
+ an (2*n+1)x(2*n-1) subpixel grid. It is computationally expensive in shader
+ and we use inside area ratio to replace it if the polymode == Imprecise. */
+ picture = glamor_create_mask_picture(screen, dst, mask_format,
+ width, height, 1);
+ if (!picture)
+ return TRUE;
+
+ ret =
+ _glamor_generate_trapezoid_with_shader(screen, picture, traps,
+ ntrap, &bounds);
+
+ if (!ret)
+ FreePicture(picture, 0);
+ }
+ }
#endif
- if (!ret) {
- DEBUGF("Fallback to sw rasterize of trapezoid\n");
-
- picture = glamor_create_mask_picture(screen, dst, mask_format,
- width, height, 0);
- if (!picture)
- return TRUE;
-
- image = pixman_image_create_bits(picture->format,
- width, height, NULL, stride);
- if (!image) {
- FreePicture(picture, 0);
- return TRUE;
- }
-
- for (; ntrap; ntrap--, traps++)
- pixman_rasterize_trapezoid(image,
- (pixman_trapezoid_t *) traps,
- -bounds.x1, -bounds.y1);
-
- pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
-
- screen->ModifyPixmapHeader(pixmap, width, height,
- mask_format->depth,
- BitsPerPixel(mask_format->depth),
- PixmapBytePad(width,
- mask_format->depth),
- pixman_image_get_data(image));
- }
-
- x_rel = bounds.x1 + x_src - x_dst;
- y_rel = bounds.y1 + y_src - y_dst;
- DEBUGF("x_src = %d, y_src = %d, x_dst = %d, y_dst = %d, "
- "x_rel = %d, y_rel = %d\n", x_src, y_src, x_dst,
- y_dst, x_rel, y_rel);
-
- CompositePicture(op, src, picture, dst,
- x_rel, y_rel,
- 0, 0,
- bounds.x1, bounds.y1,
- bounds.x2 - bounds.x1, bounds.y2 - bounds.y1);
-
- if (image)
- pixman_image_unref(image);
-
- FreePicture(picture, 0);
- return TRUE;
+ if (!ret) {
+ DEBUGF("Fallback to sw rasterize of trapezoid\n");
+
+ picture = glamor_create_mask_picture(screen, dst, mask_format,
+ width, height, 0);
+ if (!picture)
+ return TRUE;
+
+ image = pixman_image_create_bits(picture->format,
+ width, height, NULL, stride);
+ if (!image) {
+ FreePicture(picture, 0);
+ return TRUE;
+ }
+
+ for (; ntrap; ntrap--, traps++)
+ pixman_rasterize_trapezoid(image,
+ (pixman_trapezoid_t *) traps,
+ -bounds.x1, -bounds.y1);
+
+ pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+
+ screen->ModifyPixmapHeader(pixmap, width, height,
+ mask_format->depth,
+ BitsPerPixel(mask_format->depth),
+ PixmapBytePad(width,
+ mask_format->depth),
+ pixman_image_get_data(image));
+ }
+
+ x_rel = bounds.x1 + x_src - x_dst;
+ y_rel = bounds.y1 + y_src - y_dst;
+ DEBUGF("x_src = %d, y_src = %d, x_dst = %d, y_dst = %d, "
+ "x_rel = %d, y_rel = %d\n", x_src, y_src, x_dst,
+ y_dst, x_rel, y_rel);
+
+ CompositePicture(op, src, picture, dst,
+ x_rel, y_rel,
+ 0, 0,
+ bounds.x1, bounds.y1,
+ bounds.x2 - bounds.x1, bounds.y2 - bounds.y1);
+
+ if (image)
+ pixman_image_unref(image);
+
+ FreePicture(picture, 0);
+ return TRUE;
}
void
glamor_trapezoids(CARD8 op,
PicturePtr src, PicturePtr dst,
PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
- int ntrap, xTrapezoid * traps)
+ int ntrap, xTrapezoid *traps)
{
- DEBUGF("x_src = %d, y_src = %d, ntrap = %d\n", x_src, y_src, ntrap);
+ DEBUGF("x_src = %d, y_src = %d, ntrap = %d\n", x_src, y_src, ntrap);
- _glamor_trapezoids(op, src, dst, mask_format, x_src,
- y_src, ntrap, traps, TRUE);
+ _glamor_trapezoids(op, src, dst, mask_format, x_src,
+ y_src, ntrap, traps, TRUE);
}
Bool
glamor_trapezoids_nf(CARD8 op,
- PicturePtr src, PicturePtr dst,
- PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
- int ntrap, xTrapezoid * traps)
+ PicturePtr src, PicturePtr dst,
+ PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
+ int ntrap, xTrapezoid *traps)
{
- DEBUGF("x_src = %d, y_src = %d, ntrap = %d\n", x_src, y_src, ntrap);
+ DEBUGF("x_src = %d, y_src = %d, ntrap = %d\n", x_src, y_src, ntrap);
- return _glamor_trapezoids(op, src, dst, mask_format, x_src,
- y_src, ntrap, traps, FALSE);
+ return _glamor_trapezoids(op, src, dst, mask_format, x_src,
+ y_src, ntrap, traps, FALSE);
}
-#endif /* RENDER */
-
+#endif /* RENDER */