Fix the problem of x_source and y_source causing radial error
The x_source and y_source cause some problem in gradient. The old way to handle it by recaulate P1 P2 to minus the x_source and y_source, but this causes problem in radial shader. Now we modify the manner to set the texture coordinates: (x_source, y_source) --> (x_source + width, y_source + height) to handle all the cases. Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com> Signed-off-by: Junyan He <junyan.he@linux.intel.com> Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit is contained in:
Junyan He
Eric Anholt
parent
553910d08b
commit
4c174f4c9c
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@ -814,14 +814,16 @@ _glamor_gradient_set_pixmap_destination(ScreenPtr screen,
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if (tex_normalize) {
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glamor_set_normalize_tcoords(*xscale, *yscale,
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0, 0,
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(INT16)(dst_picture->pDrawable->width),
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(INT16)(dst_picture->pDrawable->height),
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x_source, y_source,
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(INT16)(dst_picture->pDrawable->width + x_source),
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(INT16)(dst_picture->pDrawable->height + y_source),
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glamor_priv->yInverted, tex_vertices);
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} else {
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glamor_set_tcoords(0, 0,
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(INT16)(dst_picture->pDrawable->width),
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glamor_set_tcoords((INT16)(dst_picture->pDrawable->width),
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(INT16)(dst_picture->pDrawable->height),
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x_source, y_source,
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(INT16)(dst_picture->pDrawable->width) + x_source,
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(INT16)(dst_picture->pDrawable->height) + y_source,
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glamor_priv->yInverted, tex_vertices);
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}
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@ -1201,14 +1203,11 @@ glamor_generate_radial_gradient_picture(ScreenPtr screen,
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r1 = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c1.radius);
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r2 = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c2.radius);
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cxy[0] = c1x;
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cxy[1] = c1y;
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glamor_set_circle_centre(width, height, c1x, c1y, glamor_priv->yInverted, cxy);
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dispatch->glUniform2fv(c1_uniform_location, 1, cxy);
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dispatch->glUniform1f(r1_uniform_location, r1);
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cxy[0] = c2x;
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cxy[1] = c2y;
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glamor_set_circle_centre(width, height, c2x, c2y, glamor_priv->yInverted, cxy);
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dispatch->glUniform2fv(c2_uniform_location, 1, cxy);
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dispatch->glUniform1f(r2_uniform_location, r2);
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@ -1282,7 +1281,7 @@ glamor_generate_linear_gradient_picture(ScreenPtr screen,
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int count = 0;
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float slope;
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GLfloat xscale, yscale;
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GLfloat pt1[4], pt2[4];
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GLfloat pt1[2], pt2[2];
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float vertices[8];
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float transform_mat[3][3];
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static const float identity_mat[3][3] = {{1.0, 0.0, 0.0},
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@ -1292,8 +1291,6 @@ glamor_generate_linear_gradient_picture(ScreenPtr screen,
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GLfloat n_stops_st[LINEAR_SMALL_STOPS];
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GLint transform_mat_uniform_location = 0;
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GLint pt1_uniform_location = 0;
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GLint pt2_uniform_location = 0;
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GLint n_stop_uniform_location = 0;
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GLint stops_uniform_location = 0;
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GLint stop0_uniform_location = 0;
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@ -1441,24 +1438,20 @@ glamor_generate_linear_gradient_picture(ScreenPtr screen,
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/* Normalize the PTs. */
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glamor_set_normalize_pt(xscale, yscale,
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pixman_fixed_to_int(src_picture->pSourcePict->linear.p1.x),
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x_source,
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pixman_fixed_to_int(src_picture->pSourcePict->linear.p1.y),
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y_source,
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pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.x),
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pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.y),
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glamor_priv->yInverted,
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pt1);
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dispatch->glUniform4fv(pt1_uniform_location, 1, pt1);
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DEBUGF("pt1:(%f %f)\n", pt1[0], pt1[1]);
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DEBUGF("pt1:(%f, %f) ---> (%f %f)\n", pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.x),
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pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.y), pt1[0], pt1[1]);
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glamor_set_normalize_pt(xscale, yscale,
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pixman_fixed_to_int(src_picture->pSourcePict->linear.p2.x),
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x_source,
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pixman_fixed_to_int(src_picture->pSourcePict->linear.p2.y),
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y_source,
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pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.x),
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pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.y),
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glamor_priv->yInverted,
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pt2);
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dispatch->glUniform4fv(pt2_uniform_location, 1, pt2);
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DEBUGF("pt2:(%f %f)\n", pt2[0], pt2[1]);
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DEBUGF("pt2:(%f, %f) ---> (%f %f)\n", pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.x),
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pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.y), pt2[0], pt2[1]);
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/* Set all the stops and colors to shader. */
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if (stops_count > LINEAR_SMALL_STOPS) {
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@ -143,54 +143,65 @@
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(vertices)[7] = (vertices)[5]; \
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} while(0)
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#define glamor_set_tcoords(x1, y1, x2, y2, yInverted, vertices) \
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do { \
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(vertices)[0] = (x1); \
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(vertices)[2] = (x2); \
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(vertices)[4] = (vertices)[2]; \
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(vertices)[6] = (vertices)[0]; \
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if (yInverted) { \
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(vertices)[1] = (y1); \
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(vertices)[5] = (y2); \
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} \
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else { \
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(vertices)[1] = (y2); \
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(vertices)[5] = (y1); \
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} \
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(vertices)[3] = (vertices)[1]; \
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(vertices)[7] = (vertices)[5]; \
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#define glamor_set_tcoords(width, height, x1, y1, x2, y2, \
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yInverted, vertices) \
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do { \
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(vertices)[0] = (x1); \
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(vertices)[2] = (x2); \
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(vertices)[4] = (vertices)[2]; \
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(vertices)[6] = (vertices)[0]; \
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if (yInverted) { \
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(vertices)[1] = (y1); \
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(vertices)[5] = (y2); \
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} \
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else { \
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(vertices)[1] = height - (y2); \
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(vertices)[5] = height - (y1); \
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} \
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(vertices)[3] = (vertices)[1]; \
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(vertices)[7] = (vertices)[5]; \
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} while(0)
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#define glamor_set_normalize_vcoords(xscale, yscale, x1, y1, x2, y2, \
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yInverted, vertices) \
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do { \
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(vertices)[0] = v_from_x_coord_x(xscale, x1); \
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(vertices)[2] = v_from_x_coord_x(xscale, x2); \
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(vertices)[4] = (vertices)[2]; \
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(vertices)[6] = (vertices)[0]; \
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if (yInverted) { \
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(vertices)[1] = v_from_x_coord_y_inverted(yscale, y1); \
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(vertices)[5] = v_from_x_coord_y_inverted(yscale, y2); \
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} \
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else { \
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(vertices)[1] = v_from_x_coord_y(yscale, y1); \
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(vertices)[5] = v_from_x_coord_y(yscale, y2); \
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} \
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(vertices)[3] = (vertices)[1]; \
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(vertices)[7] = (vertices)[5]; \
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} while(0)
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do { \
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(vertices)[0] = v_from_x_coord_x(xscale, x1); \
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(vertices)[2] = v_from_x_coord_x(xscale, x2); \
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(vertices)[4] = (vertices)[2]; \
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(vertices)[6] = (vertices)[0]; \
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if (yInverted) { \
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(vertices)[1] = v_from_x_coord_y_inverted(yscale, y1); \
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(vertices)[5] = v_from_x_coord_y_inverted(yscale, y2); \
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} \
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else { \
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(vertices)[1] = v_from_x_coord_y(yscale, y1); \
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(vertices)[5] = v_from_x_coord_y(yscale, y2); \
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} \
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(vertices)[3] = (vertices)[1]; \
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(vertices)[7] = (vertices)[5]; \
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} while(0)
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#define glamor_set_normalize_pt(xscale, yscale, x, x_start, y, y_start, \
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yInverted, pt) \
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do { \
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(pt)[0] = t_from_x_coord_x(xscale, x - x_start); \
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if (yInverted) { \
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(pt)[1] = t_from_x_coord_y_inverted(yscale, y - y_start); \
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} else { \
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(pt)[1] = t_from_x_coord_y(yscale, y - y_start); \
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} \
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(pt)[2] = (pt)[3] = 0.0; \
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#define glamor_set_normalize_pt(xscale, yscale, x, y, \
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yInverted, pt) \
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do { \
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(pt)[0] = t_from_x_coord_x(xscale, x); \
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if (yInverted) { \
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(pt)[1] = t_from_x_coord_y_inverted(yscale, y); \
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} else { \
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(pt)[1] = t_from_x_coord_y(yscale, y); \
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} \
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} while(0)
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#define glamor_set_circle_centre(width, height, x, y, \
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yInverted, c) \
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do { \
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(c)[0] = (float)x; \
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if (yInverted) { \
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(c)[1] = (float)y; \
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} else { \
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(c)[1] = (float)height - (float)y; \
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} \
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} while(0)
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inline static void
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