diff options
| -rw-r--r-- | src/gallium/auxiliary/util/u_gen_mipmap.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c index 5f395ec6e9a..5afc52ba359 100644 --- a/src/gallium/auxiliary/util/u_gen_mipmap.c +++ b/src/gallium/auxiliary/util/u_gen_mipmap.c @@ -760,15 +760,6 @@ util_create_gen_mipmap(struct pipe_context *pipe, /* fragment shader */ ctx->fs = util_make_fragment_tex_shader(pipe, &ctx->frag_shader); - ctx->vbuf = pipe_buffer_create(pipe->screen, - 32, - PIPE_BUFFER_USAGE_VERTEX, - sizeof(ctx->vertices)); - if (!ctx->vbuf) { - FREE(ctx); - return NULL; - } - /* vertex data that doesn't change */ for (i = 0; i < 4; i++) { ctx->vertices[i][0][2] = 0.0f; /* z */ @@ -777,11 +768,18 @@ util_create_gen_mipmap(struct pipe_context *pipe, ctx->vertices[i][1][3] = 1.0f; /* q */ } + /* Note: the actual vertex buffer is allocated as needed below */ + return ctx; } -static unsigned get_next_slot( struct gen_mipmap_state *ctx ) +/** + * Get next "slot" of vertex space in the vertex buffer. + * We're allocating one large vertex buffer and using it piece by piece. + */ +static unsigned +get_next_slot(struct gen_mipmap_state *ctx) { const unsigned max_slots = 4096 / sizeof ctx->vertices; @@ -798,6 +796,7 @@ static unsigned get_next_slot( struct gen_mipmap_state *ctx ) return ctx->vbuf_slot++ * sizeof ctx->vertices; } + static unsigned set_vertex_data(struct gen_mipmap_state *ctx, float width, float height) { |