Removed SDL_RenderGeometryRawFloat()

After discussion with @ocornut, SDL_RenderGeometryRaw() will take floating point colors and conversion from 8-bit color can happen on the application side.  We can always add an 8-bit color fast path in the future if we need it on handheld platforms.

If you need code to do this in your application, you can use the following:

int SDL_RenderGeometryRaw8BitColor(SDL_Renderer *renderer, SDL_Texture *texture, const float *xy, int xy_stride, const SDL_Color *color, int color_stride, const float *uv, int uv_stride, int num_vertices, const void *indices, int num_indices, int size_indices)
{
    int i, retval, isstack;
    const Uint8 *color2 = (const Uint8 *)color;
    SDL_FColor *color3;

    if (num_vertices <= 0) {
        return SDL_InvalidParamError("num_vertices");
    }
    if (!color) {
        return SDL_InvalidParamError("color");
    }

    color3 = (SDL_FColor *)SDL_small_alloc(SDL_FColor, num_vertices, &isstack);
    if (!color3) {
        return -1;
    }

    for (i = 0; i < num_vertices; ++i) {
        color3[i].r = color->r / 255.0f;
        color3[i].g = color->g / 255.0f;
        color3[i].b = color->b / 255.0f;
        color3[i].a = color->a / 255.0f;
        color2 += color_stride;
        color = (const SDL_Color *)color2;
    }

    retval = SDL_RenderGeometryRaw(renderer, texture, xy, xy_stride, color3, sizeof(*color3), uv, uv_stride, num_vertices, indices, num_indices, size_indices);

    SDL_small_free(color3, isstack);

    return retval;
}

Fixes https://github.com/libsdl-org/SDL/issues/9009

include/SDL3/SDL_render.h

@@ -1877,39 +1877,6 @@ extern SDL_DECLSPEC int SDLCALL SDL_RenderGeometry(SDL_Renderer *renderer,
                                                const SDL_Vertex *vertices, int num_vertices,
                                                const int *indices, int num_indices);
 
-/**
- * Render a list of triangles, optionally using a texture and indices into the
- * vertex arrays Color and alpha modulation is done per vertex
- * (SDL_SetTextureColorMod and SDL_SetTextureAlphaMod are ignored).
- *
- * \param renderer the rendering context.
- * \param texture (optional) The SDL texture to use.
- * \param xy vertex positions.
- * \param xy_stride byte size to move from one element to the next element.
- * \param color vertex colors (as SDL_Color).
- * \param color_stride byte size to move from one element to the next element.
- * \param uv vertex normalized texture coordinates.
- * \param uv_stride byte size to move from one element to the next element.
- * \param num_vertices number of vertices.
- * \param indices (optional) An array of indices into the 'vertices' arrays,
- *                if NULL all vertices will be rendered in sequential order.
- * \param num_indices number of indices.
- * \param size_indices index size: 1 (byte), 2 (short), 4 (int).
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information.
- *
- * \since This function is available since SDL 3.0.0.
- *
- * \sa SDL_RenderGeometry
- */
-extern SDL_DECLSPEC int SDLCALL SDL_RenderGeometryRaw(SDL_Renderer *renderer,
-                                               SDL_Texture *texture,
-                                               const float *xy, int xy_stride,
-                                               const SDL_Color *color, int color_stride,
-                                               const float *uv, int uv_stride,
-                                               int num_vertices,
-                                               const void *indices, int num_indices, int size_indices);
-
 /**
  * Render a list of triangles, optionally using a texture and indices into the
  * vertex arrays Color and alpha modulation is done per vertex
@@ -1934,9 +1901,8 @@ extern SDL_DECLSPEC int SDLCALL SDL_RenderGeometryRaw(SDL_Renderer *renderer,
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_RenderGeometry
- * \sa SDL_RenderGeometryRaw
  */
-extern SDL_DECLSPEC int SDLCALL SDL_RenderGeometryRawFloat(SDL_Renderer *renderer,
+extern SDL_DECLSPEC int SDLCALL SDL_RenderGeometryRaw(SDL_Renderer *renderer,
                                                SDL_Texture *texture,
                                                const float *xy, int xy_stride,
                                                const SDL_FColor *color, int color_stride,

src/dynapi/SDL_dynapi.sym

@@ -645,7 +645,6 @@ SDL3_0.0.0 {
     SDL_RenderFillRects;
     SDL_RenderGeometry;
     SDL_RenderGeometryRaw;
-    SDL_RenderGeometryRawFloat;
     SDL_RenderLine;
     SDL_RenderLines;
     SDL_RenderPoint;

src/dynapi/SDL_dynapi_overrides.h

@@ -670,7 +670,6 @@
 #define SDL_RenderFillRects SDL_RenderFillRects_REAL
 #define SDL_RenderGeometry SDL_RenderGeometry_REAL
 #define SDL_RenderGeometryRaw SDL_RenderGeometryRaw_REAL
-#define SDL_RenderGeometryRawFloat SDL_RenderGeometryRawFloat_REAL
 #define SDL_RenderLine SDL_RenderLine_REAL
 #define SDL_RenderLines SDL_RenderLines_REAL
 #define SDL_RenderPoint SDL_RenderPoint_REAL

src/dynapi/SDL_dynapi_procs.h

@@ -680,8 +680,7 @@ SDL_DYNAPI_PROC(int,SDL_RenderCoordinatesToWindow,(SDL_Renderer *a, float b, flo
 SDL_DYNAPI_PROC(int,SDL_RenderFillRect,(SDL_Renderer *a, const SDL_FRect *b),(a,b),return)
 SDL_DYNAPI_PROC(int,SDL_RenderFillRects,(SDL_Renderer *a, const SDL_FRect *b, int c),(a,b,c),return)
 SDL_DYNAPI_PROC(int,SDL_RenderGeometry,(SDL_Renderer *a, SDL_Texture *b, const SDL_Vertex *c, int d, const int *e, int f),(a,b,c,d,e,f),return)
-SDL_DYNAPI_PROC(int,SDL_RenderGeometryRaw,(SDL_Renderer *a, SDL_Texture *b, const float *c, int d, const SDL_Color *e, int f, const float *g, int h, int i, const void *j, int k, int l),(a,b,c,d,e,f,g,h,i,j,k,l),return)
-SDL_DYNAPI_PROC(int,SDL_RenderGeometryRawFloat,(SDL_Renderer *a, SDL_Texture *b, const float *c, int d, const SDL_FColor *e, int f, const float *g, int h, int i, const void *j, int k, int l),(a,b,c,d,e,f,g,h,i,j,k,l),return)
+SDL_DYNAPI_PROC(int,SDL_RenderGeometryRaw,(SDL_Renderer *a, SDL_Texture *b, const float *c, int d, const SDL_FColor *e, int f, const float *g, int h, int i, const void *j, int k, int l),(a,b,c,d,e,f,g,h,i,j,k,l),return)
 SDL_DYNAPI_PROC(int,SDL_RenderLine,(SDL_Renderer *a, float b, float c, float d, float e),(a,b,c,d,e),return)
 SDL_DYNAPI_PROC(int,SDL_RenderLines,(SDL_Renderer *a, const SDL_FPoint *b, int c),(a,b,c),return)
 SDL_DYNAPI_PROC(int,SDL_RenderPoint,(SDL_Renderer *a, float b, float c),(a,b,c),return)

src/render/SDL_render.c

@@ -3849,7 +3849,7 @@ int SDL_RenderGeometry(SDL_Renderer *renderer,
         const float *uv = &vertices->tex_coord.x;
         int uv_stride = sizeof(SDL_Vertex);
         int size_indices = 4;
-        return SDL_RenderGeometryRawFloat(renderer, texture, xy, xy_stride, color, color_stride, uv, uv_stride, num_vertices, indices, num_indices, size_indices);
+        return SDL_RenderGeometryRaw(renderer, texture, xy, xy_stride, color, color_stride, uv, uv_stride, num_vertices, indices, num_indices, size_indices);
     } else {
         return SDL_InvalidParamError("vertices");
     }
@@ -4226,7 +4226,7 @@ end:
 }
 #endif /* SDL_VIDEO_RENDER_SW */
 
-int SDL_RenderGeometryRawFloat(SDL_Renderer *renderer,
+int SDL_RenderGeometryRaw(SDL_Renderer *renderer,
                           SDL_Texture *texture,
                           const float *xy, int xy_stride,
                           const SDL_FColor *color, int color_stride,
@@ -4338,40 +4338,6 @@ int SDL_RenderGeometryRawFloat(SDL_Renderer *renderer,
                               renderer->view->scale.y);
 }
 
-int SDL_RenderGeometryRaw(SDL_Renderer *renderer, SDL_Texture *texture, const float *xy, int xy_stride, const SDL_Color *color, int color_stride, const float *uv, int uv_stride, int num_vertices, const void *indices, int num_indices, int size_indices)
-{
-    int i, retval, isstack;
-    const Uint8 *color2 = (const Uint8 *)color;
-    SDL_FColor *color3;
-
-    if (num_vertices <= 0) {
-        return SDL_InvalidParamError("num_vertices");
-    }
-    if (!color) {
-        return SDL_InvalidParamError("color");
-    }
-
-    color3 = (SDL_FColor *)SDL_small_alloc(SDL_FColor, num_vertices, &isstack);
-    if (!color3) {
-        return -1;
-    }
-
-    for (i = 0; i < num_vertices; ++i) {
-        color3[i].r = color->r / 255.0f;
-        color3[i].g = color->g / 255.0f;
-        color3[i].b = color->b / 255.0f;
-        color3[i].a = color->a / 255.0f;
-        color2 += color_stride;
-        color = (const SDL_Color *)color2;
-    }
-
-    retval = SDL_RenderGeometryRawFloat(renderer, texture, xy, xy_stride, color3, sizeof(*color3), uv, uv_stride, num_vertices, indices, num_indices, size_indices);
-
-    SDL_small_free(color3, isstack);
-
-    return retval;
-}
-
 SDL_Surface *SDL_RenderReadPixels(SDL_Renderer *renderer, const SDL_Rect *rect)
 {
     SDL_Rect real_rect;

test/testcolorspace.c

@@ -388,7 +388,7 @@ static void DrawGradient(float x, float y, float width, float height, float star
     color[2] = max_color;
     color[3] = min_color;
 
-    SDL_RenderGeometryRawFloat(renderer, NULL, xy, xy_stride, color, color_stride, NULL, 0, num_vertices, indices, num_indices, size_indices);
+    SDL_RenderGeometryRaw(renderer, NULL, xy, xy_stride, color, color_stride, NULL, 0, num_vertices, indices, num_indices, size_indices);
 }
 
 static void RenderGradientDrawing(void)