diff options
Diffstat (limited to 'src/mesa/vbo/vbo_context.c')
| -rw-r--r-- | src/mesa/vbo/vbo_context.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/mesa/vbo/vbo_context.c b/src/mesa/vbo/vbo_context.c index 19b35a429b3..9f807a17512 100644 --- a/src/mesa/vbo/vbo_context.c +++ b/src/mesa/vbo/vbo_context.c @@ -135,6 +135,48 @@ static void init_mat_currval(struct gl_context *ctx) } } +static void +vbo_draw_indirect_prims(struct gl_context *ctx, + GLuint mode, + struct gl_buffer_object *indirect_data, + GLsizeiptr indirect_offset, + unsigned draw_count, + unsigned stride, + struct gl_buffer_object *indirect_params, + GLsizeiptr indirect_params_offset, + const struct _mesa_index_buffer *ib) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct _mesa_prim *prim; + GLsizei i; + + prim = calloc(draw_count, sizeof(*prim)); + if (prim == NULL) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "gl%sDraw%sIndirect%s", + (draw_count > 1) ? "Multi" : "", + ib ? "Elements" : "Arrays", + indirect_params ? "CountARB" : ""); + return; + } + + prim[0].begin = 1; + prim[draw_count - 1].end = 1; + for (i = 0; i < draw_count; ++i, indirect_offset += stride) { + prim[i].mode = mode; + prim[i].indexed = !!ib; + prim[i].indirect_offset = indirect_offset; + prim[i].is_indirect = 1; + prim[i].draw_id = i; + } + + vbo->draw_prims(ctx, prim, draw_count, + ib, GL_TRUE, 0, ~0, + NULL, 0, + ctx->DrawIndirectBuffer); + + free(prim); +} + GLboolean _vbo_CreateContext( struct gl_context *ctx ) { @@ -152,6 +194,7 @@ GLboolean _vbo_CreateContext( struct gl_context *ctx ) init_legacy_currval( ctx ); init_generic_currval( ctx ); init_mat_currval( ctx ); + vbo_set_indirect_draw_func(ctx, vbo_draw_indirect_prims); /* Build mappings from VERT_ATTRIB -> VBO_ATTRIB depending on type * of vertex program active. @@ -223,3 +266,10 @@ void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func) vbo->draw_prims = func; } + +void vbo_set_indirect_draw_func(struct gl_context *ctx, + vbo_indirect_draw_func func) +{ + struct vbo_context *vbo = vbo_context(ctx); + vbo->draw_indirect_prims = func; +} |