Commit 56aa23b1 authored by Thomas Hellstrom's avatar Thomas Hellstrom

st/xa: Fix transformations when we have both source and mask samplers

In the case when we had both source and mask samplers, transformations were
typically not applied correctly.
Signed-off-by: 's avatarThomas Hellstrom <>
Reviewed-by: Brian Paul's avatarBrian Paul <>
Reviewed-by: Sinclair Yeh's avatarSinclair Yeh <>
parent e1298def
......@@ -192,47 +192,55 @@ add_vertex_2tex(struct xa_context *r,
static void
add_vertex_data1(struct xa_context *r,
float srcX, float srcY, float dstX, float dstY,
float width, float height,
struct pipe_resource *src, const float *src_matrix)
compute_src_coords(float sx, float sy, struct pipe_resource *src,
const float *src_matrix,
float width, float height,
float tc0[2], float tc1[2], float tc2[2], float tc3[2])
float s0, t0, s1, t1, s2, t2, s3, t3;
float pt0[2], pt1[2], pt2[2], pt3[2];
pt0[0] = srcX;
pt0[1] = srcY;
pt1[0] = (srcX + width);
pt1[1] = srcY;
pt2[0] = (srcX + width);
pt2[1] = (srcY + height);
pt3[0] = srcX;
pt3[1] = (srcY + height);
tc0[0] = sx;
tc0[1] = sy;
tc1[0] = (sx + width);
tc1[1] = sy;
tc2[0] = (sx + width);
tc2[1] = (sy + height);
tc3[0] = sx;
tc3[1] = (sy + height);
if (src_matrix) {
map_point((float *)src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]);
map_point((float *)src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]);
map_point((float *)src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]);
map_point((float *)src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]);
map_point((float *)src_matrix, tc0[0], tc0[1], &tc0[0], &tc0[1]);
map_point((float *)src_matrix, tc1[0], tc1[1], &tc1[0], &tc1[1]);
map_point((float *)src_matrix, tc2[0], tc2[1], &tc2[0], &tc2[1]);
map_point((float *)src_matrix, tc3[0], tc3[1], &tc3[0], &tc3[1]);
s0 = pt0[0] / src->width0;
s1 = pt1[0] / src->width0;
s2 = pt2[0] / src->width0;
s3 = pt3[0] / src->width0;
t0 = pt0[1] / src->height0;
t1 = pt1[1] / src->height0;
t2 = pt2[1] / src->height0;
t3 = pt3[1] / src->height0;
tc0[0] /= src->width0;
tc1[0] /= src->width0;
tc2[0] /= src->width0;
tc3[0] /= src->width0;
tc0[1] /= src->height0;
tc1[1] /= src->height0;
tc2[1] /= src->height0;
tc3[1] /= src->height0;
static void
add_vertex_data1(struct xa_context *r,
float srcX, float srcY, float dstX, float dstY,
float width, float height,
struct pipe_resource *src, const float *src_matrix)
float tc0[2], tc1[2], tc2[2], tc3[2];
compute_src_coords(srcX, srcY, src, src_matrix, width, height,
tc0, tc1, tc2, tc3);
/* 1st vertex */
add_vertex_1tex(r, dstX, dstY, s0, t0);
add_vertex_1tex(r, dstX, dstY, tc0[0], tc0[1]);
/* 2nd vertex */
add_vertex_1tex(r, dstX + width, dstY, s1, t1);
add_vertex_1tex(r, dstX + width, dstY, tc1[0], tc1[1]);
/* 3rd vertex */
add_vertex_1tex(r, dstX + width, dstY + height, s2, t2);
add_vertex_1tex(r, dstX + width, dstY + height, tc2[0], tc2[1]);
/* 4th vertex */
add_vertex_1tex(r, dstX, dstY + height, s3, t3);
add_vertex_1tex(r, dstX, dstY + height, tc3[0], tc3[1]);
static void
......@@ -243,53 +251,26 @@ add_vertex_data2(struct xa_context *r,
struct pipe_resource *mask,
const float *src_matrix, const float *mask_matrix)
float src_s0, src_t0, src_s1, src_t1;
float mask_s0, mask_t0, mask_s1, mask_t1;
float spt0[2], spt1[2];
float mpt0[2], mpt1[2];
spt0[0] = srcX;
spt0[1] = srcY;
spt1[0] = srcX + width;
spt1[1] = srcY + height;
mpt0[0] = maskX;
mpt0[1] = maskY;
mpt1[0] = maskX + width;
mpt1[1] = maskY + height;
if (src_matrix) {
map_point((float *)src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]);
map_point((float *)src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]);
if (mask_matrix) {
map_point((float *)mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]);
map_point((float *)mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]);
src_s0 = spt0[0] / src->width0;
src_t0 = spt0[1] / src->height0;
src_s1 = spt1[0] / src->width0;
src_t1 = spt1[1] / src->height0;
float spt0[2], spt1[2], spt2[2], spt3[2];
float mpt0[2], mpt1[2], mpt2[2], mpt3[2];
mask_s0 = mpt0[0] / mask->width0;
mask_t0 = mpt0[1] / mask->height0;
mask_s1 = mpt1[0] / mask->width0;
mask_t1 = mpt1[1] / mask->height0;
compute_src_coords(srcX, srcY, src, src_matrix, width, height,
spt0, spt1, spt2, spt3);
compute_src_coords(maskX, maskY, mask, mask_matrix, width, height,
mpt0, mpt1, mpt2, mpt3);
/* 1st vertex */
add_vertex_2tex(r, dstX, dstY,
src_s0, src_t0, mask_s0, mask_t0);
spt0[0], spt0[1], mpt0[0], mpt0[1]);
/* 2nd vertex */
add_vertex_2tex(r, dstX + width, dstY,
src_s1, src_t0, mask_s1, mask_t0);
spt1[0], spt1[1], mpt1[0], mpt1[1]);
/* 3rd vertex */
add_vertex_2tex(r, dstX + width, dstY + height,
src_s1, src_t1, mask_s1, mask_t1);
spt2[0], spt2[1], mpt2[0], mpt2[1]);
/* 4th vertex */
add_vertex_2tex(r, dstX, dstY + height,
src_s0, src_t1, mask_s0, mask_t1);
spt3[0], spt3[1], mpt3[0], mpt3[1]);
static void
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