[SCM] PostGIS branch master updated. 3.7.0beta1-270-gf03f1cf994

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- Log -----------------------------------------------------------------
commit f03f1cf99496832fbc7d2881f41187124b113718
Merge: fa5de5802b d064fc038e
Author: Darafei Praliaskouski <komzpa at gmail.com>
Date:   Sun Aug 9 08:56:15 2026 -0700

    Merge pull request 'raster: document IntersectionFractions float buffer contract' (!676) from Komzpa/postgis:fix/intersection-fractions-float-contract-20260809 into master
    
    ### Motivation
    
    `ST_IntersectionFractions` has been repeatedly flagged as if `GEOSGridIntersectionFractions` wrote double-precision output into the raster band. The GEOS 3.14+ C API is declared with a `float *buf` output parameter, so the existing `PT_32BF` band is the matching raster storage type.
    
    Make that contract harder to misread in source review and static analysis.
    
    ### Description
    
    - Keep the output band as `PT_32BF`.
    - Name the GEOS output buffer as `float *geos_fractions` before calling GEOS.
    - Add a defensive size check that `PT_32BF` matches the GEOS float buffer element size.
    - Expand the nearby comment to say that `PT_64BF`/double would mismatch the GEOS API rather than make the call safer.
    
    No `NEWS` entry: this does not change user-visible behavior; it documents and guards the existing GEOS/PostGIS buffer contract.
    
    ### Validation
    
    - `./autogen.sh && ./configure --with-raster --without-topology --without-protobuf`
    - `git clang-format gitea/master --diff -- raster/rt_core/rt_spatial_relationship.c`
    - `make -C raster/rt_core -j2`
    - `make -C raster/rt_pg -j2`
    - `make -C regress staged-install`
    - `make -C raster/test/regress check TESTS=./rt_intersection_fractions`
    - `git diff --check`
    - `utils/docs/check_news.sh --base-ref gitea/master .`
    
    Reviewed-on: https://gitea.osgeo.org/postgis/postgis/pulls/676


commit d064fc038ec6fbcecd1375909d6ded791a871f0d
Author: Darafei Praliaskouski <me at komzpa.net>
Date:   Sun Aug 9 19:31:59 2026 +0400

    raster: document IntersectionFractions float buffer contract

diff --git a/raster/rt_core/rt_spatial_relationship.c b/raster/rt_core/rt_spatial_relationship.c
index 625b2ead26..d1b55eb6a8 100644
--- a/raster/rt_core/rt_spatial_relationship.c
+++ b/raster/rt_core/rt_spatial_relationship.c
@@ -1304,6 +1304,7 @@ rt_raster_intersection_fractions(
 	rt_band band_out = NULL;
 	int band_num;
 	unsigned int width, height;
+	float *geos_fractions = NULL;
 	GEOSGeometry *geos_geom = NULL;
 	int geos_result;
 
@@ -1333,8 +1334,11 @@ rt_raster_intersection_fractions(
 
 	/* Shallow clone a new raster with no bands */
 	rast_out = rt_raster_clone(rast_in, 0);
-	/* GEOSGridIntersectionFractions writes float values into float* buf,
-	 * so the output band must stay PT_32BF rather than PT_64BF. */
+	/*
+	 * GEOSGridIntersectionFractions is declared with a float *buf output
+	 * parameter in the GEOS 3.14+ C API. Keep this band PT_32BF; using
+	 * PT_64BF/double would mismatch the GEOS API rather than make it safer.
+	 */
 	band_num = rt_raster_generate_new_band(
 		rast_out, /* rast */
 		PT_32BF, /* pixel type */
@@ -1350,6 +1354,14 @@ rt_raster_intersection_fractions(
 		rterror("%s: Failed to create output band", __func__);
 		return NULL;
 	}
+	if (rt_pixtype_size(PT_32BF) != (int)sizeof(*geos_fractions))
+	{
+		rt_raster_destroy(rast_out);
+		rterror("%s: PT_32BF size does not match GEOS float buffer", __func__);
+		return NULL;
+	}
+	geos_fractions = rt_band_get_data(band_out);
+	assert(geos_fractions != NULL);
 
 	/* Prepare for GEOS call */
 	/* Initialize GEOS to handle notices and errors */
@@ -1367,12 +1379,7 @@ rt_raster_intersection_fractions(
 
 	/* Call the core GEOS function */
 	geos_result = GEOSGridIntersectionFractions(
-		geos_geom,
-		rast_env.MinX, rast_env.MinY,
-		rast_env.MaxX, rast_env.MaxY,
-		width, height,
-		rt_band_get_data(band_out)
-	);
+	    geos_geom, rast_env.MinX, rast_env.MinY, rast_env.MaxX, rast_env.MaxY, width, height, geos_fractions);
 
 	/* The GEOS geometry is no longer needed after this call, so we can clean it up */
 	GEOSGeom_destroy(geos_geom);

-----------------------------------------------------------------------

Summary of changes:
 raster/rt_core/rt_spatial_relationship.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)


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