From b60c7302357c2ceb0297d5ef2f748c9b686dbad5 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Mathias=20Fr=C3=B6hlich?= Date: Sun, 22 May 2016 14:10:19 +0200 Subject: [PATCH] mesa: Track enabled lights in a bitmask MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This enables some optimizations afterwards. Reviewed-by: Brian Paul Signed-off-by: Mathias Fröhlich --- src/mesa/main/enable.c | 2 ++ src/mesa/main/light.c | 1 + src/mesa/main/mtypes.h | 2 ++ 3 files changed, 5 insertions(+) diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c index 1d674bf39f6..bc59280f090 100644 --- a/src/mesa/main/enable.c +++ b/src/mesa/main/enable.c @@ -402,10 +402,12 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state) FLUSH_VERTICES(ctx, _NEW_LIGHT); ctx->Light.Light[cap-GL_LIGHT0].Enabled = state; if (state) { + ctx->Light._EnabledLights |= 1u << (cap - GL_LIGHT0); insert_at_tail(&ctx->Light.EnabledList, &ctx->Light.Light[cap-GL_LIGHT0]); } else { + ctx->Light._EnabledLights &= ~(1u << (cap - GL_LIGHT0)); remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]); } break; diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c index 4a8dee3f649..a52efdbdf87 100644 --- a/src/mesa/main/light.c +++ b/src/mesa/main/light.c @@ -1171,6 +1171,7 @@ _mesa_init_lighting( struct gl_context *ctx ) GLuint i; /* Lighting group */ + ctx->Light._EnabledLights = 0; for (i = 0; i < MAX_LIGHTS; i++) { init_light( &ctx->Light.Light[i], i ); } diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index b86a0eead0f..bea589fabbb 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -630,6 +630,8 @@ struct gl_light_attrib * Derived state for optimizations: */ /*@{*/ + GLbitfield _EnabledLights; /**< bitmask containing enabled lights */ + GLboolean _NeedEyeCoords; GLboolean _NeedVertices; /**< Use fast shader? */ struct gl_light EnabledList; /**< List sentinel */ -- 2.30.2