src/gallium/targets/graw-null/graw_util.c

   1
   2 #include "pipe/p_compiler.h"
   3 #include "pipe/p_context.h"
   4 #include "pipe/p_state.h"
   5 #include "tgsi/tgsi_text.h"
   6 #include "util/u_debug.h"
   7 #include "util/u_memory.h"
   8 #include "state_tracker/graw.h"
   9
  10
  11 /* Helper functions.  These are the same for all graw implementations.
  12  */
  13 PUBLIC void *
  14 graw_parse_geometry_shader(struct pipe_context *pipe,
  15                            const char *text)
  16 {
  17    struct tgsi_token tokens[1024];
  18    struct pipe_shader_state state;
  19
  20    if (!tgsi_text_translate(text, tokens, Elements(tokens)))
  21       return NULL;
  22
  23    state.tokens = tokens;
  24    return pipe->create_gs_state(pipe, &state);
  25 }
  26
  27 PUBLIC void *
  28 graw_parse_vertex_shader(struct pipe_context *pipe,
  29                          const char *text)
  30 {
  31    struct tgsi_token tokens[1024];
  32    struct pipe_shader_state state;
  33
  34    if (!tgsi_text_translate(text, tokens, Elements(tokens)))
  35       return NULL;
  36
  37    state.tokens = tokens;
  38    return pipe->create_vs_state(pipe, &state);
  39 }
  40
  41 PUBLIC void *
  42 graw_parse_fragment_shader(struct pipe_context *pipe,
  43                            const char *text)
  44 {
  45    struct tgsi_token tokens[1024];
  46    struct pipe_shader_state state;
  47
  48    if (!tgsi_text_translate(text, tokens, Elements(tokens)))
  49       return NULL;
  50
  51    state.tokens = tokens;
  52    return pipe->create_fs_state(pipe, &state);
  53 }
  54
  55 static char out_filename[256] = "";
  56
  57 PUBLIC boolean
  58 graw_parse_args(int *argi,
  59                 int argc,
  60                 char *argv[])
  61 {
  62    if (strcmp(argv[*argi], "-o") == 0) {
  63       if (*argi + 1 >= argc) {
  64          return FALSE;
  65       }
  66
  67       strncpy(out_filename, argv[*argi + 1], sizeof(out_filename) - 1);
  68       out_filename[sizeof(out_filename) - 1] = '\0';
  69       *argi += 2;
  70       return TRUE;
  71    }
  72
  73    return FALSE;
  74 }
  75
  76 PUBLIC boolean
  77 graw_save_surface_to_file(struct pipe_context *pipe,
  78                           struct pipe_surface *surface,
  79                           const char *filename)
  80 {
  81    if (!filename || !*filename) {
  82       filename = out_filename;
  83       if (!filename || !*filename) {
  84          return FALSE;
  85       }
  86    }
  87
  88    /* XXX: Make that working in release builds.
  89     */
  90    debug_dump_surface_bmp(pipe, filename, surface);
  91    return TRUE;
  92 }