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_rt_blend_state
  48 {
  49    struct pipe_rt_blend_state *
  50    __getitem__(int index)
  51    {
  52       if(index < 0 || index >= PIPE_MAX_COLOR_BUFS)
  53          SWIG_exception(SWIG_ValueError, "index out of bounds");
  54       return $self + index;
  55    fail:
  56       return NULL;
  57    };
  58 };
  59
  60
  61 %extend pipe_framebuffer_state {
  62
  63    pipe_framebuffer_state(void) {
  64       return CALLOC_STRUCT(pipe_framebuffer_state);
  65    }
  66
  67    ~pipe_framebuffer_state() {
  68       unsigned index;
  69       for(index = 0; index < PIPE_MAX_COLOR_BUFS; ++index)
  70          pipe_surface_reference(&$self->cbufs[index], NULL);
  71       pipe_surface_reference(&$self->zsbuf, NULL);
  72       FREE($self);
  73    }
  74
  75    void
  76    set_cbuf(unsigned index, struct st_surface *surface)
  77    {
  78       struct pipe_surface *_surface = NULL;
  79
  80       if(index >= PIPE_MAX_COLOR_BUFS)
  81          SWIG_exception(SWIG_ValueError, "index out of bounds");
  82
  83       if(surface) {
  84          _surface = st_pipe_surface(surface, PIPE_BUFFER_USAGE_GPU_WRITE);
  85          if(!_surface)
  86             SWIG_exception(SWIG_ValueError, "couldn't acquire surface for writing");
  87       }
  88
  89       pipe_surface_reference(&$self->cbufs[index], _surface);
  90
  91    fail:
  92       return;
  93    }
  94
  95    void
  96    set_zsbuf(struct st_surface *surface)
  97    {
  98       struct pipe_surface *_surface = NULL;
  99
 100       if(surface) {
 101          _surface = st_pipe_surface(surface, PIPE_BUFFER_USAGE_GPU_WRITE);
 102          if(!_surface)
 103             SWIG_exception(SWIG_ValueError, "couldn't acquire surface for writing");
 104       }
 105
 106       pipe_surface_reference(&$self->zsbuf, _surface);
 107
 108    fail:
 109       return;
 110    }
 111
 112 };
 113
 114
 115 %extend pipe_shader_state {
 116
 117    pipe_shader_state(const char *text, unsigned num_tokens = 1024) {
 118       struct tgsi_token *tokens;
 119       struct pipe_shader_state *shader;
 120
 121       tokens = MALLOC(num_tokens * sizeof(struct tgsi_token));
 122       if(!tokens)
 123          goto error1;
 124
 125       if(tgsi_text_translate(text, tokens, num_tokens ) != TRUE)
 126          goto error2;
 127
 128       shader = CALLOC_STRUCT(pipe_shader_state);
 129       if(!shader)
 130          goto error3;
 131
 132       shader->tokens = tokens;
 133
 134       return shader;
 135
 136 error3:
 137 error2:
 138       FREE(tokens);
 139 error1:
 140       return NULL;
 141    }
 142
 143    ~pipe_shader_state() {
 144       FREE((void*)$self->tokens);
 145       FREE($self);
 146    }
 147
 148    void dump(unsigned flags = 0) {
 149       tgsi_dump($self->tokens, flags);
 150    }
 151 }