From 315e2e3da8b5a0d5ff75e438c9c4bbbbc6d53b91 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Sun, 3 Jul 2016 17:33:59 +0200
Subject: vo_opengl: remove caching GL_MAX_TEXTURE_SIZE value

No real need to cache this, and we need fewer fields in the OSD part
struct.

Also add logging for when the OSD texture is reallocated.
---
 video/out/opengl/osd.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/video/out/opengl/osd.c b/video/out/opengl/osd.c
index fde7e868c4..5df5bb199a 100644
--- a/video/out/opengl/osd.c
+++ b/video/out/opengl/osd.c
@@ -62,7 +62,6 @@ struct mpgl_osd {
     struct mp_log *log;
     struct osd_state *osd;
     GL *gl;
-    GLint max_tex_wh;
     bool use_pbo;
     struct mpgl_osd_part *parts[MAX_OSD_PARTS];
     const struct gl_format *fmt_table[SUBBITMAP_COUNT];
@@ -85,8 +84,6 @@ struct mpgl_osd *mpgl_osd_init(GL *gl, struct mp_log *log, struct osd_state *osd
         .scratch = talloc_zero_size(ctx, 1),
     };
 
-    gl->GetIntegerv(GL_MAX_TEXTURE_SIZE, &ctx->max_tex_wh);
-
     ctx->fmt_table[SUBBITMAP_LIBASS] = gl_find_unorm_format(gl, 1, 1);
     ctx->fmt_table[SUBBITMAP_RGBA]   = gl_find_unorm_format(gl, 1, 4);
 
@@ -136,18 +133,13 @@ static bool upload_osd(struct mpgl_osd *ctx, struct mpgl_osd_part *osd,
                        struct sub_bitmaps *imgs)
 {
     GL *gl = ctx->gl;
+    bool ok = false;
 
     assert(imgs->packed);
 
     int req_w = next_pow2(imgs->packed_w);
     int req_h = next_pow2(imgs->packed_h);
 
-    if (req_w > ctx->max_tex_wh || req_h > ctx->max_tex_wh) {
-        MP_ERR(ctx, "OSD bitmaps do not fit on a surface with the maximum "
-                "supported size %dx%d.\n", ctx->max_tex_wh, ctx->max_tex_wh);
-        return false;
-    }
-
     const struct gl_format *fmt = ctx->fmt_table[imgs->format];
     assert(fmt);
 
@@ -161,6 +153,17 @@ static bool upload_osd(struct mpgl_osd *ctx, struct mpgl_osd_part *osd,
         osd->w = FFMAX(32, req_w);
         osd->h = FFMAX(32, req_h);
 
+        MP_VERBOSE(ctx, "Reallocating OSD texture to %dx%d.\n", osd->w, osd->h);
+
+        GLint max_wh;
+        gl->GetIntegerv(GL_MAX_TEXTURE_SIZE, &max_wh);
+
+        if (osd->w > max_wh || osd->h > max_wh) {
+            MP_ERR(ctx, "OSD bitmaps do not fit on a surface with the maximum "
+                   "supported size %dx%d.\n", max_wh, max_wh);
+            goto done;
+        }
+
         gl->TexImage2D(GL_TEXTURE_2D, 0, fmt->internal_format, osd->w, osd->h,
                        0, fmt->format, fmt->type, NULL);
 
@@ -174,10 +177,11 @@ static bool upload_osd(struct mpgl_osd *ctx, struct mpgl_osd_part *osd,
                       fmt->type, osd->w, osd->h, imgs->packed->planes[0],
                       imgs->packed->stride[0], 0, 0,
                       imgs->packed_w, imgs->packed_h);
+    ok = true;
 
+done:
     gl->BindTexture(GL_TEXTURE_2D, 0);
-
-    return true;
+    return ok;
 }
 
 static void gen_osd_cb(void *pctx, struct sub_bitmaps *imgs)
-- 
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