src/gallium/state_trackers/python/p_state.i

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   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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  27
  28 /**
  29  * @file
  30  * SWIG interface definion for Gallium types.
  31  *
  32  * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
  33  */
  34
  35 %module gallium;
  36
  37 %ignore winsys;
  38 %ignore pipe_vertex_buffer::buffer;
  39
  40 %include "pipe/p_compiler.h";
  41 %include "pipe/p_state.h";
  42
  43
  44 %array_class(struct pipe_stencil_state, StencilArray);
  45
  46
  47 %extend pipe_framebuffer_state {
  48
  49    pipe_framebuffer_state(void) {
  50       return CALLOC_STRUCT(pipe_framebuffer_state);
  51    }
  52
  53    ~pipe_framebuffer_state() {
  54       unsigned index;
  55       for(index = 0; index < PIPE_MAX_COLOR_BUFS; ++index)
  56          pipe_surface_reference(&$self->cbufs[index], NULL);
  57       pipe_surface_reference(&$self->zsbuf, NULL);
  58       FREE($self);
  59    }
  60
  61    void
  62    set_cbuf(unsigned index, struct st_surface *surface)
  63    {
  64       struct pipe_surface *_surface = NULL;
  65
  66       if(index >= PIPE_MAX_COLOR_BUFS)
  67          SWIG_exception(SWIG_ValueError, "index out of bounds");
  68
  69       if(surface) {
  70          _surface = st_pipe_surface(surface, PIPE_BUFFER_USAGE_GPU_WRITE);
  71          if(!_surface)
  72             SWIG_exception(SWIG_ValueError, "couldn't acquire surface for writing");
  73       }
  74
  75       pipe_surface_reference(&$self->cbufs[index], _surface);
  76
  77    fail:
  78       return;
  79    }
  80
  81    void
  82    set_zsbuf(struct st_surface *surface)
  83    {
  84       struct pipe_surface *_surface = NULL;
  85
  86       if(surface) {
  87          _surface = st_pipe_surface(surface, PIPE_BUFFER_USAGE_GPU_WRITE);
  88          if(!_surface)
  89             SWIG_exception(SWIG_ValueError, "couldn't acquire surface for writing");
  90       }
  91
  92       pipe_surface_reference(&$self->zsbuf, _surface);
  93
  94    fail:
  95       return;
  96    }
  97
  98 };
  99
 100
 101 %extend pipe_shader_state {
 102
 103    pipe_shader_state(const char *text, unsigned num_tokens = 1024) {
 104       struct tgsi_token *tokens;
 105       struct pipe_shader_state *shader;
 106
 107       tokens = MALLOC(num_tokens * sizeof(struct tgsi_token));
 108       if(!tokens)
 109          goto error1;
 110
 111       if(tgsi_text_translate(text, tokens, num_tokens ) != TRUE)
 112          goto error2;
 113
 114       shader = CALLOC_STRUCT(pipe_shader_state);
 115       if(!shader)
 116          goto error3;
 117
 118       shader->tokens = tokens;
 119
 120       return shader;
 121
 122 error3:
 123 error2:
 124       FREE(tokens);
 125 error1:
 126       return NULL;
 127    }
 128
 129    ~pipe_shader_state() {
 130       FREE((void*)$self->tokens);
 131       FREE($self);
 132    }
 133
 134    void dump(unsigned flags = 0) {
 135       tgsi_dump($self->tokens, flags);
 136    }
 137 }