Commit: 0e9367fc29bc42c80e10b7097facec2b029a7362
Author: Chris Blackbourn
Date: Fri Jul 15 10:04:50 2022 +1200
Branches: master
https://developer.blender.org/rB0e9367fc29bc42c80e10b7097facec2b029a7362
Cleanup: separate clipUVTransform into two different functions
No functional changes.
Prep for D15420 / T98061.
===================================================================
M source/blender/editors/transform/transform_convert.c
M source/blender/editors/transform/transform_convert.h
M source/blender/editors/transform/transform_mode_resize.c
M source/blender/editors/transform/transform_mode_translate.c
===================================================================
diff --git a/source/blender/editors/transform/transform_convert.c
b/source/blender/editors/transform/transform_convert.c
index a23689166c4..bab700560fe 100644
--- a/source/blender/editors/transform/transform_convert.c
+++ b/source/blender/editors/transform/transform_convert.c
@@ -479,132 +479,6 @@ TransDataCurveHandleFlags
*initTransDataCurveHandles(TransData *td, struct BezTr
/** \name UV Coordinates
* \{ */
-/**
- * Find the correction for the scaling factor when "Constrain to Bounds" is
active.
- * \param numerator: How far the UV boundary (unit square) is from the origin
of the scale.
- * \param denominator: How far the AABB is from the origin of the scale.
- * \param scale: Scale parameter to update.
- */
-static void constrain_scale_to_boundary(const float numerator,
- const float denominator,
- float *scale)
-{
- if (denominator == 0.0f) {
- /* The origin of the scale is on the edge of the boundary. */
- if (numerator < 0.0f) {
- /* Negative scale will wrap around and put us outside the boundary. */
- *scale = 0.0f; /* Hold at the boundary instead. */
- }
- return; /* Nothing else we can do without more info. */
- }
-
- const float correction = numerator / denominator;
- if (correction < 0.0f || !isfinite(correction)) {
- /* TODO: Correction is negative or invalid, but we lack context to fix
`*scale`. */
- return;
- }
-
- if (denominator < 0.0f) {
- /* Scale origin is outside boundary, only make scale bigger. */
- if (*scale < correction) {
- *scale = correction;
- }
- return;
- }
-
- /* Scale origin is inside boundary, the "regular" case, limit maximum scale.
*/
- if (*scale > correction) {
- *scale = correction;
- }
-}
-
-bool clipUVTransform(TransInfo *t, float vec[2], const bool resize)
-{
- bool clipx = true, clipy = true;
- float min[2], max[2];
-
- /* Check if the current image in UV editor is a tiled image or not. */
- const SpaceImage *sima = t->area->spacedata.first;
- const Image *image = sima->image;
- const bool is_tiled_image = image && (image->source == IMA_SRC_TILED);
- /* Stores the coordinates of the closest UDIM tile.
- * Also acts as an offset to the tile from the origin of UV space. */
- float base_offset[2] = {0.0f, 0.0f};
-
- /* If tiled image then constrain to correct/closest UDIM tile, else 0-1 UV
space. */
- if (is_tiled_image) {
- int nearest_tile_index = BKE_image_find_nearest_tile(image,
t->center_global);
- if (nearest_tile_index != -1) {
- nearest_tile_index -= 1001;
- /* Getting coordinates of nearest tile from the tile index. */
- base_offset[0] = nearest_tile_index % 10;
- base_offset[1] = nearest_tile_index / 10;
- }
- }
-
- min[0] = min[1] = FLT_MAX;
- max[0] = max[1] = FLT_MIN;
-
- FOREACH_TRANS_DATA_CONTAINER (t, tc) {
-
- TransData *td;
- int a;
-
- for (a = 0, td = tc->data; a < tc->data_len; a++, td++) {
- minmax_v2v2_v2(min, max, td->loc);
- }
- }
-
- if (resize) {
- /* Assume no change is required. */
- float scalex = 1.0f;
- float scaley = 1.0f;
-
- /* Update U against the left border. */
- constrain_scale_to_boundary(
- t->center_global[0] - base_offset[0], t->center_global[0] - min[0],
&scalex);
- /* Now the right border, negated, because `-1.0 / -1.0 = 1.0` */
- constrain_scale_to_boundary(base_offset[0] + t->aspect[0] -
t->center_global[0],
- max[0] - t->center_global[0],
- &scalex);
-
- /* Do the same for the V co-ordinate, which is called `y`. */
- constrain_scale_to_boundary(
- t->center_global[1] - base_offset[1], t->center_global[1] - min[1],
&scaley);
- constrain_scale_to_boundary(base_offset[1] + t->aspect[1] -
t->center_global[1],
- max[1] - t->center_global[1],
- &scaley);
-
- clipx = (scalex != 1.0f);
- clipy = (scaley != 1.0f);
- vec[0] *= scalex;
- vec[1] *= scaley;
- }
- else {
- if (min[0] < base_offset[0]) {
- vec[0] += base_offset[0] - min[0];
- }
- else if (max[0] > base_offset[0] + t->aspect[0]) {
- vec[0] -= max[0] - base_offset[0] - t->aspect[0];
- }
- else {
- clipx = 0;
- }
-
- if (min[1] < base_offset[1]) {
- vec[1] += base_offset[1] - min[1];
- }
- else if (max[1] > base_offset[1] + t->aspect[1]) {
- vec[1] -= max[1] - base_offset[1] - t->aspect[1];
- }
- else {
- clipy = 0;
- }
- }
-
- return (clipx || clipy);
-}
-
void clipUVData(TransInfo *t)
{
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
diff --git a/source/blender/editors/transform/transform_convert.h
b/source/blender/editors/transform/transform_convert.h
index 037fbe26c77..f25a3db3f75 100644
--- a/source/blender/editors/transform/transform_convert.h
+++ b/source/blender/editors/transform/transform_convert.h
@@ -34,7 +34,6 @@ int special_transform_moving(TransInfo *t);
void special_aftertrans_update(struct bContext *C, TransInfo *t);
void sort_trans_data_dist(TransInfo *t);
void createTransData(struct bContext *C, TransInfo *t);
-bool clipUVTransform(TransInfo *t, float vec[2], bool resize);
void clipUVData(TransInfo *t);
void transform_convert_flush_handle2D(TransData *td, TransData2D *td2d, float
y_fac);
/**
diff --git a/source/blender/editors/transform/transform_mode_resize.c
b/source/blender/editors/transform/transform_mode_resize.c
index 31d40486afc..bc45ec07eab 100644
--- a/source/blender/editors/transform/transform_mode_resize.c
+++ b/source/blender/editors/transform/transform_mode_resize.c
@@ -11,6 +11,7 @@
#include "BLI_task.h"
#include "BKE_context.h"
+#include "BKE_image.h"
#include "BKE_unit.h"
#include "ED_screen.h"
@@ -84,6 +85,102 @@ static void ApplySnapResize(TransInfo *t, float vec[3])
}
}
+/**
+ * Find the correction for the scaling factor when "Constrain to Bounds" is
active.
+ * \param numerator: How far the UV boundary (unit square) is from the origin
of the scale.
+ * \param denominator: How far the AABB is from the origin of the scale.
+ * \param scale: Scale parameter to update.
+ */
+static void constrain_scale_to_boundary(const float numerator,
+ const float denominator,
+ float *scale)
+{
+ if (denominator == 0.0f) {
+ /* The origin of the scale is on the edge of the boundary. */
+ if (numerator < 0.0f) {
+ /* Negative scale will wrap around and put us outside the boundary. */
+ *scale = 0.0f; /* Hold at the boundary instead. */
+ }
+ return; /* Nothing else we can do without more info. */
+ }
+
+ const float correction = numerator / denominator;
+ if (correction < 0.0f || !isfinite(correction)) {
+ /* TODO: Correction is negative or invalid, but we lack context to fix
`*scale`. */
+ return;
+ }
+
+ if (denominator < 0.0f) {
+ /* Scale origin is outside boundary, only make scale bigger. */
+ if (*scale < correction) {
+ *scale = correction;
+ }
+ return;
+ }
+
+ /* Scale origin is inside boundary, the "regular" case, limit maximum scale.
*/
+ if (*scale > correction) {
+ *scale = correction;
+ }
+}
+
+static bool clip_uv_transform_resize(TransInfo *t, float vec[2])
+{
+ /* Assume no change is required. */
+ float scalex = 1.0f;
+ float scaley = 1.0f;
+
+ /* Check if the current image in UV editor is a tiled image or not. */
+ const SpaceImage *sima = t->area->spacedata.first;
+ const Image *image = sima->image;
+ const bool is_tiled_image = image && (image->source == IMA_SRC_TILED);
+
+ /* Stores the coordinates of the closest UDIM tile.
+ * Also acts as an offset to the tile from the origin of UV space. */
+ float base_offset[2] = {0.0f, 0.0f};
+
+ /* If tiled image then constrain to correct/closest UDIM tile, else 0-1 UV
space. */
+ if (is_tiled_image) {
+ int nearest_tile_index = BKE_image_find_nearest_tile(image,
t->center_global);
+ if (nearest_tile_index != -1) {
+ nearest_tile_index -= 1001;
+ /* Getting coordinates of nearest tile from the tile index. */
+ base_offset[0] = nearest_tile_index % 10;
+ base_offset[1] = nearest_tile_index / 10;
+ }
+ }
+
+ float min[2], max[2];
+ min[0] = min[1] = FLT_MAX;
+ max[0] = max[1] = -FLT_MAX;
+
+ FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+
+ TransData *td;
+ int a;
+ for (a = 0, td = tc->data; a < tc->data_len; a++, td++) {
+ minmax_v2v2_v2(min, max, td->loc);
+ }
+ }
+
+ /* Update U against the left border. */
+ constrain_scale_to_boundary(
+ t->center_global[0] - base_offset[0], t->center_global[0] - min[0],
&scalex);
+ /* Now the right border, negated, because `-1.0 / -1.0 = 1.0` */
+ constrain_scale_to_boundary(
+ base_offset[0] + t->aspect[0] - t->center_global[0], max[0] -
t->center_global[0], &scalex);
+
+ /* Do the same for the V co-ordinate, which is called `y`. */
+ constrain_scale_to_boundary(
+ t->center_global[1] - base_offset[1], t->center_global[1] - min[1],
&scaley);
+ constrain_scale_to_boundary(
+ base_offset[1] + t->aspect[1] - t->center_global[1], max[1] -
t->center_global[1], &scaley);
+
+ vec[0] *= scalex;
+ vec[1] *= scaley;
+ return (scalex != 1.0f) || (scaley != 1.0f);
+}
+
static void applyResize(TransInfo *t, const int UNUSED(mval[2]))
{
float mat[3][3];
@@ -157,7 +254,7 @@ static void applyResize(TransInfo *t, const int
UNUSED(mval[2]))
}
/* Evil hack - redo resize if clipping needed. */
- if (t->flag & T_CLIP_UV && clipUVTransform(t, t->values_final, 1)) {
+ if (t->flag & T_CLIP_UV && clip_uv_transform_resize(t, t->values_final)) {
size_to_mat3(mat, t->values_final);
if (t->con.mode & CON_APPLY) {
diff --git a/source/blender/editors/transform/transform_mode_translate.c
b/source/blender/editors/transform/transform_mode_translate.c
index 65690f9069d..67bdeb3fed0 100644
--- a/source/blender/editors/transform/transform_mode_translate.c
+++ b/source/blender/editors/transform/transform_mode_translate.c
@@ -16,6 +16,7 @@
#include "BLI_task.h"
#include "BKE_context.h"
+#include "BKE_image.h"
#incl
@@ Diff output truncated at 10240 characters. @@
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