r_coronas_occlusionquery: don't try using a GL20-requiring feature in the GL11/GL13...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12324 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=ef9b48fe33bd373656f2c426ab3f8440d6490077

diff --git a/r_shadow.c b/r_shadow.c
index 6ac773894101388ac4b56aebf9e518507a099264..0db0f0cac0ca432b948e633355e8f72b9a93a45c 100644 (file)
--- a/r_shadow.c
+++ b/r_shadow.c
@@ -445,19 +445,19 @@ static void R_Shadow_SetShadowMode(void)
                        {
                                if (!r_fb.usedepthtextures)
                                        r_shadow_shadowmappcf = 1;
-                               else if((strstr(gl_vendor, "NVIDIA") || strstr(gl_renderer, "Radeon HD")) && vid.support.arb_shadow && r_shadow_shadowmapshadowsampler) 
+                               else if((strstr(gl_vendor, "NVIDIA") || strstr(gl_renderer, "Radeon HD")) && vid.support.arb_shadow && r_shadow_shadowmapshadowsampler)
                                {
                                        r_shadow_shadowmapsampler = true;
                                        r_shadow_shadowmappcf = 1;
                                }
                                else if(vid.support.amd_texture_texture4 || vid.support.arb_texture_gather)
                                        r_shadow_shadowmappcf = 1;
-                               else if((strstr(gl_vendor, "ATI") || strstr(gl_vendor, "Advanced Micro Devices")) && !strstr(gl_renderer, "Mesa") && !strstr(gl_version, "Mesa")) 
+                               else if((strstr(gl_vendor, "ATI") || strstr(gl_vendor, "Advanced Micro Devices")) && !strstr(gl_renderer, "Mesa") && !strstr(gl_version, "Mesa"))
                                        r_shadow_shadowmappcf = 1;
-                               else 
+                               else
                                        r_shadow_shadowmapsampler = vid.support.arb_shadow && r_shadow_shadowmapshadowsampler;
                        }
-                       else 
+                       else
                        {
                 r_shadow_shadowmapsampler = vid.support.arb_shadow && r_shadow_shadowmapshadowsampler;
                                switch (r_shadow_shadowmapfilterquality)
@@ -1556,7 +1556,7 @@ static int R_Shadow_CullFrustumSides(rtlight_t *rtlight, float size, float borde
        int sides = 0x3F, masks[6] = { 3<<4, 3<<4, 3<<0, 3<<0, 3<<2, 3<<2 };
        float scale = (size - 2*border)/size, len;
        float bias = border / (float)(size - border), dp, dn, ap, an;
-       // check if cone enclosing side would cross frustum plane 
+       // check if cone enclosing side would cross frustum plane
        scale = 2 / (scale*scale + 2);
        Matrix4x4_OriginFromMatrix(&rtlight->matrix_lighttoworld, o);
        for (i = 0;i < 5;i++)
@@ -2473,7 +2473,7 @@ static void R_Shadow_BounceGrid_GenerateSettings(r_shadow_bouncegrid_settings_t
        float spacing = s ? r_shadow_bouncegrid_static_spacing.value : r_shadow_bouncegrid_dynamic_spacing.value;
 
        // prevent any garbage in alignment padded areas as we'll be using memcmp
-       memset(settings, 0, sizeof(*settings)); 
+       memset(settings, 0, sizeof(*settings));
 
        // build up a complete collection of the desired settings, so that memcmp can be used to compare parameters
        settings->staticmode                    = s;
@@ -5278,7 +5278,7 @@ void R_DrawModelShadowMaps(int fbo, rtexture_t *depthtexture, rtexture_t *colort
        VectorAdd(shadoworigin, r_refdef.view.origin, shadoworigin);
        dot1 = DotProduct(r_refdef.view.forward, shadowdir);
        dot2 = DotProduct(r_refdef.view.up, shadowdir);
-       if (fabs(dot1) <= fabs(dot2)) 
+       if (fabs(dot1) <= fabs(dot2))
                VectorMA(r_refdef.view.forward, -dot1, shadowdir, shadowforward);
        else
                VectorMA(r_refdef.view.up, -dot2, shadowdir, shadowforward);
@@ -5356,7 +5356,7 @@ void R_DrawModelShadowMaps(int fbo, rtexture_t *depthtexture, rtexture_t *colort
 
        Matrix4x4_Concat(&mvpmatrix, &r_refdef.view.viewport.projectmatrix, &r_refdef.view.viewport.viewmatrix);
        Matrix4x4_Invert_Full(&invmvpmatrix, &mvpmatrix);
-       Matrix4x4_CreateScale3(&scalematrix, size, -size, 1); 
+       Matrix4x4_CreateScale3(&scalematrix, size, -size, 1);
        Matrix4x4_AdjustOrigin(&scalematrix, 0, size, -0.5f * bias);
        Matrix4x4_Concat(&texmatrix, &scalematrix, &shadowmatrix);
        Matrix4x4_Concat(&r_shadow_shadowmapmatrix, &texmatrix, &invmvpmatrix);
@@ -5599,13 +5599,10 @@ static void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
        {
                switch(vid.renderpath)
                {
-               case RENDERPATH_GL11:
-               case RENDERPATH_GL13:
                case RENDERPATH_GL20:
                case RENDERPATH_GLES1:
                case RENDERPATH_GLES2:
 #if defined(GL_SAMPLES_PASSED_ARB) && !defined(USE_GLES2)
-                       CHECKGLERROR
                        // See if we can use the GPU-side method to prevent implicit sync
                        if (vid.support.arb_query_buffer_object) {
 #define BUFFER_OFFSET(i)    ((GLint *)((unsigned char*)NULL + (i)))
@@ -5620,13 +5617,23 @@ static void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
                                qglGetQueryObjectivARB(rtlight->corona_queryindex_allpixels, GL_QUERY_RESULT_ARB, BUFFER_OFFSET(4));
                                qglBindBufferBase(GL_UNIFORM_BUFFER, 0, r_shadow_occlusion_buf);
                                occlude = MATERIALFLAG_OCCLUDE;
-                       } else {
-                               qglGetQueryObjectivARB(rtlight->corona_queryindex_visiblepixels, GL_QUERY_RESULT_ARB, &visiblepixels);
-                               qglGetQueryObjectivARB(rtlight->corona_queryindex_allpixels, GL_QUERY_RESULT_ARB, &allpixels); 
-                               if (visiblepixels < 1 || allpixels < 1)
-                                       return;
-                               rtlight->corona_visibility *= bound(0, (float)visiblepixels / (float)allpixels, 1);
+                               cscale *= rtlight->corona_visibility;
+                               CHECKGLERROR
+                               break;
                        }
+                       // fallthrough
+#else
+                       return;
+#endif
+               case RENDERPATH_GL11:
+               case RENDERPATH_GL13:
+#if defined(GL_SAMPLES_PASSED_ARB) && !defined(USE_GLES2)
+                       CHECKGLERROR
+                       qglGetQueryObjectivARB(rtlight->corona_queryindex_visiblepixels, GL_QUERY_RESULT_ARB, &visiblepixels);
+                       qglGetQueryObjectivARB(rtlight->corona_queryindex_allpixels, GL_QUERY_RESULT_ARB, &allpixels);
+                       if (visiblepixels < 1 || allpixels < 1)
+                               return;
+                       rtlight->corona_visibility *= bound(0, (float)visiblepixels / (float)allpixels, 1);
                        cscale *= rtlight->corona_visibility;
                        CHECKGLERROR
                        break;