diff options
Diffstat (limited to 'mesalib/src/mesa/shader/program_parse_extra.c')
| -rw-r--r-- | mesalib/src/mesa/shader/program_parse_extra.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/mesalib/src/mesa/shader/program_parse_extra.c b/mesalib/src/mesa/shader/program_parse_extra.c new file mode 100644 index 000000000..8e4be606f --- /dev/null +++ b/mesalib/src/mesa/shader/program_parse_extra.c @@ -0,0 +1,117 @@ +/* + * Copyright © 2009 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <string.h> +#include "main/mtypes.h" +#include "prog_instruction.h" +#include "program_parser.h" + + +/** + * Extra assembly-level parser routines + * + * \author Ian Romanick <ian.d.romanick@intel.com> + */ + +int +_mesa_ARBvp_parse_option(struct asm_parser_state *state, const char *option) +{ + if (strcmp(option, "ARB_position_invariant") == 0) { + state->option.PositionInvariant = 1; + return 1; + } + + return 0; +} + + +int +_mesa_ARBfp_parse_option(struct asm_parser_state *state, const char *option) +{ + /* All of the options currently supported start with "ARB_". The code is + * currently structured with nested if-statements because eventually options + * that start with "NV_" will be supported. This structure will result in + * less churn when those options are added. + */ + if (strncmp(option, "ARB_", 4) == 0) { + /* Advance the pointer past the "ARB_" prefix. + */ + option += 4; + + + if (strncmp(option, "fog_", 4) == 0) { + option += 4; + + if (state->option.Fog == OPTION_NONE) { + if (strcmp(option, "exp") == 0) { + state->option.Fog = OPTION_FOG_EXP; + return 1; + } else if (strcmp(option, "exp2") == 0) { + state->option.Fog = OPTION_FOG_EXP2; + return 1; + } else if (strcmp(option, "linear") == 0) { + state->option.Fog = OPTION_FOG_LINEAR; + return 1; + } + } + + return 0; + } else if (strncmp(option, "precision_hint_", 15) == 0) { + option += 15; + + if (state->option.PrecisionHint == OPTION_NONE) { + if (strcmp(option, "nicest") == 0) { + state->option.PrecisionHint = OPTION_NICEST; + return 1; + } else if (strcmp(option, "fastest") == 0) { + state->option.PrecisionHint = OPTION_FASTEST; + return 1; + } + } + + return 0; + } else if (strcmp(option, "draw_buffers") == 0) { + /* Don't need to check extension availability because all Mesa-based + * drivers support GL_ARB_draw_buffers. + */ + state->option.DrawBuffers = 1; + return 1; + } else if (strcmp(option, "fragment_program_shadow") == 0) { + if (state->ctx->Extensions.ARB_fragment_program_shadow) { + state->option.Shadow = 1; + return 1; + } + } + } else if (strncmp(option, "MESA_", 5) == 0) { + option += 5; + + if (strcmp(option, "texture_array") == 0) { + if (state->ctx->Extensions.MESA_texture_array) { + state->option.TexArray = 1; + return 1; + } + } + } + + return 0; +} |