diff options
Diffstat (limited to 'src/gallium/drivers/i965/brw_pipe_shader.c')
| -rw-r--r-- | src/gallium/drivers/i965/brw_pipe_shader.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_pipe_shader.c b/src/gallium/drivers/i965/brw_pipe_shader.c index fbb772d18c..8b61da763c 100644 --- a/src/gallium/drivers/i965/brw_pipe_shader.c +++ b/src/gallium/drivers/i965/brw_pipe_shader.c @@ -33,6 +33,25 @@ #include "brw_util.h" #include "brw_wm.h" + +/** + * Determine if the given fragment program uses GLSL features such + * as flow conditionals, loops, subroutines. + * Some GLSL shaders may use these features, others might not. + */ +GLboolean brw_wm_is_glsl(const struct brw_fragment_shader *fp) +{ + return (fp->info.insn_count[TGSI_OPCODE_ARL] > 0 || + fp->info.insn_count[TGSI_OPCODE_IF] > 0 || + fp->info.insn_count[TGSI_OPCODE_ENDIF] > 0 || /* redundant - IF */ + fp->info.insn_count[TGSI_OPCODE_CAL] > 0 || + fp->info.insn_count[TGSI_OPCODE_BRK] > 0 || /* redundant - BGNLOOP */ + fp->info.insn_count[TGSI_OPCODE_RET] > 0 || /* redundant - CAL */ + fp->info.insn_count[TGSI_OPCODE_BGNLOOP] > 0); +} + + + static void brwBindProgram( struct brw_context *brw, GLenum target, struct gl_program *prog ) |