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vo_gpu: add two useful operators to user shader 

modulo operator could be used to check if size is multiple of a
certain number.

equal operator could be used to verify if size of different textures
aligns.
This commit is contained in:
Bin Jin 2019-03-07 15:06:24 +00:00 committed by sfan5
parent b3cbd46509
commit 1d0349d3b5
2 changed files with 7 additions and 0 deletions
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5
video/out/gpu/user_shaders.c
View File

@ -16,6 +16,7 @@
*/
#include <assert.h>
#include <math.h>
#include "common/msg.h"
#include "misc/ctype.h"
@ -52,9 +53,11 @@ static bool parse_rpn_szexpr(struct bstr line, struct szexp out[MAX_SZEXP_SIZE])
case '-': exp->tag = SZEXP_OP2; exp->val.op = SZEXP_OP_SUB; continue;
case '*': exp->tag = SZEXP_OP2; exp->val.op = SZEXP_OP_MUL; continue;
case '/': exp->tag = SZEXP_OP2; exp->val.op = SZEXP_OP_DIV; continue;
case '%': exp->tag = SZEXP_OP2; exp->val.op = SZEXP_OP_MOD; continue;
case '!': exp->tag = SZEXP_OP1; exp->val.op = SZEXP_OP_NOT; continue;
case '>': exp->tag = SZEXP_OP2; exp->val.op = SZEXP_OP_GT; continue;
case '<': exp->tag = SZEXP_OP2; exp->val.op = SZEXP_OP_LT; continue;
case '=': exp->tag = SZEXP_OP2; exp->val.op = SZEXP_OP_EQ; continue;
}
if (mp_isdigit(word.start[0])) {
@ -118,8 +121,10 @@ bool eval_szexpr(struct mp_log *log, void *priv,
case SZEXP_OP_SUB: res = op1 - op2; break;
case SZEXP_OP_MUL: res = op1 * op2; break;
case SZEXP_OP_DIV: res = op1 / op2; break;
case SZEXP_OP_MOD: res = fmodf(op1, op2); break;
case SZEXP_OP_GT: res = op1 > op2; break;
case SZEXP_OP_LT: res = op1 < op2; break;
case SZEXP_OP_EQ: res = op1 == op2; break;
default: abort();
}

2
video/out/gpu/user_shaders.h
View File

@ -30,9 +30,11 @@ enum szexp_op {
SZEXP_OP_SUB,
SZEXP_OP_MUL,
SZEXP_OP_DIV,
SZEXP_OP_MOD,
SZEXP_OP_NOT,
SZEXP_OP_GT,
SZEXP_OP_LT,
SZEXP_OP_EQ,
};
enum szexp_tag {