void device_load_vertexshader(device_t device, shader_t vertshader)
{
GLuint program = 0;
vertbuffer_t cur_vb = device->cur_vertex_buffer;
if (device->cur_vertex_shader == vertshader)
return;
if (vertshader && vertshader->type != SHADER_VERTEX) {
blog(LOG_ERROR, "Specified shader is not a vertex shader");
goto fail;
}
/* unload and reload the vertex buffer to sync the buffers up with
* the specific shader */
if (cur_vb && !vertexbuffer_load(device, NULL))
goto fail;
device->cur_vertex_shader = vertshader;
if (vertshader)
program = vertshader->program;
glUseProgramStages(device->pipeline, GL_VERTEX_SHADER_BIT, program);
if (!gl_success("glUseProgramStages"))
goto fail;
if (cur_vb && !vertexbuffer_load(device, cur_vb))
goto fail;
return;
fail:
blog(LOG_ERROR, "device_load_vertexshader (GL) failed");
}
void device_load_vertexbuffer(device_t device, vertbuffer_t vb)
{
if (!vertexbuffer_load(device, vb))
blog(LOG_ERROR, "device_load_vertexbuffer (GL) failed");
}
