wined3d: Introduce helper function to generate conditional instructions.

dlls/wined3d/glsl_shader.c

@@ -5068,13 +5068,20 @@ static void shader_glsl_default(const struct wined3d_shader_instruction *ins)
     shader_addline(ins->ctx->buffer, "default:\n");
 }
 
-static void shader_glsl_if(const struct wined3d_shader_instruction *ins)
+static void shader_glsl_generate_conditional_op(const struct wined3d_shader_instruction *ins,
+        const char *op)
 {
-    const char *condition = (ins->flags == WINED3D_SHADER_CONDITIONAL_OP_NZ) ? "bool" : "!bool";
-    struct glsl_src_param src0_param;
+    struct glsl_src_param src_param;
+    const char *condition;
 
-    shader_glsl_add_src_param(ins, &ins->src[0], WINED3DSP_WRITEMASK_0, &src0_param);
-    shader_addline(ins->ctx->buffer, "if (%s(%s)) {\n", condition, src0_param.param_str);
+    condition = ins->flags == WINED3D_SHADER_CONDITIONAL_OP_NZ ? "bool" : "!bool";
+    shader_glsl_add_src_param(ins, &ins->src[0], WINED3DSP_WRITEMASK_0, &src_param);
+    shader_addline(ins->ctx->buffer, "if (%s(%s)) %s\n", condition, src_param.param_str, op);
+}
+
+static void shader_glsl_if(const struct wined3d_shader_instruction *ins)
+{
+    shader_glsl_generate_conditional_op(ins, "{");
 }
 
 static void shader_glsl_ifc(const struct wined3d_shader_instruction *ins)
@@ -5128,22 +5135,19 @@ static void shader_glsl_breakc(const struct wined3d_shader_instruction *ins)
 
 static void shader_glsl_conditional_op(const struct wined3d_shader_instruction *ins)
 {
-    const char *condition = (ins->flags == WINED3D_SHADER_CONDITIONAL_OP_NZ) ? "bool" : "!bool";
-    struct glsl_src_param src_param;
     const char *op;
 
     switch (ins->handler_idx)
     {
-        case WINED3DSIH_BREAKP: op = "break"; break;
-        case WINED3DSIH_CONTINUEP: op = "continue"; break;
-        case WINED3DSIH_RETP: op = "return"; break;
+        case WINED3DSIH_BREAKP: op = "break;"; break;
+        case WINED3DSIH_CONTINUEP: op = "continue;"; break;
+        case WINED3DSIH_RETP: op = "return;"; break;
         default:
             ERR("Unhandled opcode %#x.\n", ins->handler_idx);
             return;
     }
 
-    shader_glsl_add_src_param(ins, &ins->src[0], WINED3DSP_WRITEMASK_0, &src_param);
-    shader_addline(ins->ctx->buffer, "if (%s(%s)) %s;\n", condition, src_param.param_str, op);
+    shader_glsl_generate_conditional_op(ins, op);
 }
 
 static void shader_glsl_continue(const struct wined3d_shader_instruction *ins)
@@ -6604,11 +6608,7 @@ static void shader_glsl_texkill(const struct wined3d_shader_instruction *ins)
 {
     if (ins->ctx->reg_maps->shader_version.major >= 4)
     {
-        const char *condition = ins->flags == WINED3D_SHADER_CONDITIONAL_OP_NZ ? "bool" : "!bool";
-        struct glsl_src_param src_param;
-
-        shader_glsl_add_src_param(ins, &ins->src[0], WINED3DSP_WRITEMASK_0, &src_param);
-        shader_addline(ins->ctx->buffer, "if (%s(%s)) discard;\n", condition, src_param.param_str);
+        shader_glsl_generate_conditional_op(ins, "discard;");
     }
     else
     {