diff options
Diffstat (limited to 'source/blender/gpu/opengl/gl_batch.cc')
-rw-r--r-- | source/blender/gpu/opengl/gl_batch.cc | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/source/blender/gpu/opengl/gl_batch.cc b/source/blender/gpu/opengl/gl_batch.cc index fde2a53bb0f..ff8867fe3e6 100644 --- a/source/blender/gpu/opengl/gl_batch.cc +++ b/source/blender/gpu/opengl/gl_batch.cc @@ -18,6 +18,7 @@ #include "gl_debug.hh" #include "gl_index_buffer.hh" #include "gl_primitive.hh" +#include "gl_storage_buffer.hh" #include "gl_vertex_array.hh" #include "gl_batch.hh" @@ -326,4 +327,55 @@ void GLBatch::draw(int v_first, int v_count, int i_first, int i_count) } } +void GLBatch::draw_indirect(GPUStorageBuf *indirect_buf, intptr_t offset) +{ + GL_CHECK_RESOURCES("Batch"); + + this->bind(0); + + /* TODO(fclem): Make the barrier and binding optional if consecutive draws are issued. */ + dynamic_cast<GLStorageBuf *>(unwrap(indirect_buf))->bind_as(GL_DRAW_INDIRECT_BUFFER); + /* This barrier needs to be here as it only work on the currently bound indirect buffer. */ + glMemoryBarrier(GL_COMMAND_BARRIER_BIT); + + GLenum gl_type = to_gl(prim_type); + if (elem) { + const GLIndexBuf *el = this->elem_(); + GLenum index_type = to_gl(el->index_type_); + glDrawElementsIndirect(gl_type, index_type, (GLvoid *)offset); + } + else { + glDrawArraysIndirect(gl_type, (GLvoid *)offset); + } + /* Unbind. */ + glBindBuffer(GL_DRAW_INDIRECT_BUFFER, 0); +} + +void GLBatch::multi_draw_indirect(GPUStorageBuf *indirect_buf, + int count, + intptr_t offset, + intptr_t stride) +{ + GL_CHECK_RESOURCES("Batch"); + + this->bind(0); + + /* TODO(fclem): Make the barrier and binding optional if consecutive draws are issued. */ + dynamic_cast<GLStorageBuf *>(unwrap(indirect_buf))->bind_as(GL_DRAW_INDIRECT_BUFFER); + /* This barrier needs to be here as it only work on the currently bound indirect buffer. */ + glMemoryBarrier(GL_COMMAND_BARRIER_BIT); + + GLenum gl_type = to_gl(prim_type); + if (elem) { + const GLIndexBuf *el = this->elem_(); + GLenum index_type = to_gl(el->index_type_); + glMultiDrawElementsIndirect(gl_type, index_type, (GLvoid *)offset, count, stride); + } + else { + glMultiDrawArraysIndirect(gl_type, (GLvoid *)offset, count, stride); + } + /* Unbind. */ + glBindBuffer(GL_DRAW_INDIRECT_BUFFER, 0); +} + /** \} */ |