SDL: Use the default colorspace if we have to convert texture pixels

SDL Commits
1 
From 49cc4c14e9a2a02e3cc78137826f2e37bd4a454e Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Tue, 30 Jan 2024 23:11:18 -0800
Subject: [PATCH] Use the default colorspace if we have to convert texture
 pixels

---
 src/render/SDL_render.c | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/src/render/SDL_render.c b/src/render/SDL_render.c
index 9a943739a703..fff67e758eb4 100644
--- a/src/render/SDL_render.c
+++ b/src/render/SDL_render.c
@@ -1334,7 +1334,7 @@ SDL_Texture *SDL_CreateTextureFromSurface(SDL_Renderer *renderer, SDL_Surface *s
     Uint32 format = SDL_PIXELFORMAT_UNKNOWN;
     SDL_Texture *texture;
     SDL_PropertiesID props;
-    Uint32 default_colorspace, colorspace;
+    SDL_Colorspace default_colorspace, colorspace;
 
     CHECK_RENDERER_MAGIC(renderer, NULL);
 
@@ -1400,23 +1400,9 @@ SDL_Texture *SDL_CreateTextureFromSurface(SDL_Renderer *renderer, SDL_Surface *s
         }
     }
 
-    default_colorspace = SDL_GetDefaultTextureColorspace(format);
-    colorspace = (Uint32)SDL_GetNumberProperty(SDL_GetSurfaceProperties(surface), SDL_PROP_SURFACE_COLORSPACE_NUMBER, default_colorspace);
-
-    props = SDL_CreateProperties();
-    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, colorspace);
-    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER, format);
-    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_ACCESS_NUMBER, SDL_TEXTUREACCESS_STATIC);
-    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_WIDTH_NUMBER, surface->w);
-    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_HEIGHT_NUMBER, surface->h);
-    texture = SDL_CreateTextureWithProperties(renderer, props);
-    if (!texture) {
-        return NULL;
-    }
-
     if (format == surface->format->format) {
         if (surface->format->Amask && SDL_SurfaceHasColorKey(surface)) {
-            /* Surface and Renderer formats are identicals.
+            /* Surface and Renderer formats are identical.
              * Intermediate conversion is needed to convert color key to alpha (SDL_ConvertColorkeyToAlpha()). */
             direct_update = SDL_FALSE;
         } else {
@@ -1428,6 +1414,25 @@ SDL_Texture *SDL_CreateTextureFromSurface(SDL_Renderer *renderer, SDL_Surface *s
         direct_update = SDL_FALSE;
     }
 
+    if (direct_update) {
+        default_colorspace = SDL_GetDefaultTextureColorspace(format);
+        colorspace = (SDL_Colorspace)SDL_GetNumberProperty(SDL_GetSurfaceProperties(surface), SDL_PROP_SURFACE_COLORSPACE_NUMBER, default_colorspace);
+    } else {
+        /* We're updating through an intermediate surface, so we lose colorspace information */
+        colorspace = SDL_COLORSPACE_RGB_DEFAULT;
+    }
+
+    props = SDL_CreateProperties();
+    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, colorspace);
+    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER, format);
+    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_ACCESS_NUMBER, SDL_TEXTUREACCESS_STATIC);
+    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_WIDTH_NUMBER, surface->w);
+    SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_HEIGHT_NUMBER, surface->h);
+    texture = SDL_CreateTextureWithProperties(renderer, props);
+    if (!texture) {
+        return NULL;
+    }
+
     if (direct_update) {
         if (SDL_MUSTLOCK(surface)) {
             SDL_LockSurface(surface);