now does batching of transparent surfaces, such as particles, this raised performance...

[xonotic/darkplaces.git] / gl_rsurf.c

diff --git a/gl_rsurf.c b/gl_rsurf.c
index 1ebbfecb893f4f657f9f7b57a916470f4931c2a0..6db1aa005203e1e6bb4299cb234952df9fef8479 100644 (file)
--- a/gl_rsurf.c
+++ b/gl_rsurf.c
@@ -337,8 +337,11 @@ void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int
 =============================================================
 */
 
 =============================================================
 */
 

-static void R_DrawPortal_Callback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
+static void R_DrawPortal_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)

 {
 {

+       // due to the hacky nature of this function's parameters, this is never
+       // called with a batch, so numsurfaces is always 1, and the surfacelist
+       // contains only a leaf number for coloring purposes

        const mportal_t *portal = (mportal_t *)ent;
        int i, numpoints;
        float *v;
        const mportal_t *portal = (mportal_t *)ent;
        int i, numpoints;
        float *v;


@@ -356,7 +359,7 @@ static void R_DrawPortal_Callback(const entity_render_t *ent, int surfacenumber,
        R_Mesh_ColorPointer(NULL);
        R_Mesh_ResetTextureState();
 
        R_Mesh_ColorPointer(NULL);
        R_Mesh_ResetTextureState();
 

-       i = surfacenumber;
+       i = surfacelist[0];

        GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
                         ((i & 0x0038) >> 3) * (1.0f / 7.0f),
                         ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
        GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
                         ((i & 0x0038) >> 3) * (1.0f / 7.0f),
                         ((i & 0x01C0) >> 6) * (1.0f / 7.0f),


@@ -776,16 +779,36 @@ void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin,
        }
 }
 
        }
 }
 

-static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
+#define BATCHSIZE 256
+
+static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)

 {
 {

-       msurface_t *surface = ent->model->data_surfaces + surfacenumber;
-       R_UpdateTextureInfo(ent, surface->texture);
+       int surfacelistindex, batchcount;
+       texture_t *t;
+       msurface_t *batchsurfaces[BATCHSIZE];
+       // note: in practice this never actualy batches, oh well

        R_Shadow_RenderMode_Begin();
        R_Shadow_RenderMode_ActiveLight((rtlight_t *)rtlight);
        R_Shadow_RenderMode_Lighting(false, true);
        R_Shadow_SetupEntityLight(ent);
        R_Shadow_RenderMode_Begin();
        R_Shadow_RenderMode_ActiveLight((rtlight_t *)rtlight);
        R_Shadow_RenderMode_Lighting(false, true);
        R_Shadow_SetupEntityLight(ent);

-       rsurface_texture = surface->texture->currentframe;
-       R_Shadow_RenderSurfacesLighting(1, &surface);
+       t = NULL;
+       batchcount = 0;
+       for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
+       {
+               msurface_t *surface = ent->model->data_surfaces + surfacelist[surfacelistindex];
+               if (t != surface->texture)
+               {
+                       if (batchcount > 0)
+                               R_Shadow_RenderSurfacesLighting(batchcount, batchsurfaces);
+                       batchcount = 0;
+                       t = surface->texture;
+                       R_UpdateTextureInfo(ent, t);
+                       rsurface_texture = t->currentframe;
+               }
+               batchsurfaces[batchcount++] = surface;
+       }
+       if (batchcount > 0)
+               R_Shadow_RenderSurfacesLighting(batchcount, batchsurfaces);

        R_Shadow_RenderMode_End();
 }
 
        R_Shadow_RenderMode_End();
 }