/*
 * Copyright © 2015 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.
 */

static uint32_t
vertex_element_comp_control(enum isl_format format, unsigned comp)
{
   uint8_t bits;
   switch (comp) {
   case 0: bits = isl_format_layouts[format].channels.r.bits; break;
   case 1: bits = isl_format_layouts[format].channels.g.bits; break;
   case 2: bits = isl_format_layouts[format].channels.b.bits; break;
   case 3: bits = isl_format_layouts[format].channels.a.bits; break;
   default: unreachable("Invalid component");
   }

   if (bits) {
      return VFCOMP_STORE_SRC;
   } else if (comp < 3) {
      return VFCOMP_STORE_0;
   } else if (isl_format_layouts[format].channels.r.type == ISL_UINT ||
            isl_format_layouts[format].channels.r.type == ISL_SINT) {
      assert(comp == 3);
      return VFCOMP_STORE_1_INT;
   } else {
      assert(comp == 3);
      return VFCOMP_STORE_1_FP;
   }
}

static const uint32_t vk_to_gen_cullmode[] = {
   [VK_CULL_MODE_NONE]                       = CULLMODE_NONE,
   [VK_CULL_MODE_FRONT_BIT]                  = CULLMODE_FRONT,
   [VK_CULL_MODE_BACK_BIT]                   = CULLMODE_BACK,
   [VK_CULL_MODE_FRONT_AND_BACK]             = CULLMODE_BOTH
};

static const uint32_t vk_to_gen_fillmode[] = {
   [VK_POLYGON_MODE_FILL]                    = RASTER_SOLID,
   [VK_POLYGON_MODE_LINE]                    = RASTER_WIREFRAME,
   [VK_POLYGON_MODE_POINT]                   = RASTER_POINT,
};

static const uint32_t vk_to_gen_front_face[] = {
   [VK_FRONT_FACE_COUNTER_CLOCKWISE]         = 1,
   [VK_FRONT_FACE_CLOCKWISE]                 = 0
};

static const uint32_t vk_to_gen_logic_op[] = {
   [VK_LOGIC_OP_COPY]                        = LOGICOP_COPY,
   [VK_LOGIC_OP_CLEAR]                       = LOGICOP_CLEAR,
   [VK_LOGIC_OP_AND]                         = LOGICOP_AND,
   [VK_LOGIC_OP_AND_REVERSE]                 = LOGICOP_AND_REVERSE,
   [VK_LOGIC_OP_AND_INVERTED]                = LOGICOP_AND_INVERTED,
   [VK_LOGIC_OP_NO_OP]                       = LOGICOP_NOOP,
   [VK_LOGIC_OP_XOR]                         = LOGICOP_XOR,
   [VK_LOGIC_OP_OR]                          = LOGICOP_OR,
   [VK_LOGIC_OP_NOR]                         = LOGICOP_NOR,
   [VK_LOGIC_OP_EQUIVALENT]                  = LOGICOP_EQUIV,
   [VK_LOGIC_OP_INVERT]                      = LOGICOP_INVERT,
   [VK_LOGIC_OP_OR_REVERSE]                  = LOGICOP_OR_REVERSE,
   [VK_LOGIC_OP_COPY_INVERTED]               = LOGICOP_COPY_INVERTED,
   [VK_LOGIC_OP_OR_INVERTED]                 = LOGICOP_OR_INVERTED,
   [VK_LOGIC_OP_NAND]                        = LOGICOP_NAND,
   [VK_LOGIC_OP_SET]                         = LOGICOP_SET,
};

static const uint32_t vk_to_gen_blend[] = {
   [VK_BLEND_FACTOR_ZERO]                    = BLENDFACTOR_ZERO,
   [VK_BLEND_FACTOR_ONE]                     = BLENDFACTOR_ONE,
   [VK_BLEND_FACTOR_SRC_COLOR]               = BLENDFACTOR_SRC_COLOR,
   [VK_BLEND_FACTOR_ONE_MINUS_SRC_COLOR]     = BLENDFACTOR_INV_SRC_COLOR,
   [VK_BLEND_FACTOR_DST_COLOR]               = BLENDFACTOR_DST_COLOR,
   [VK_BLEND_FACTOR_ONE_MINUS_DST_COLOR]     = BLENDFACTOR_INV_DST_COLOR,
   [VK_BLEND_FACTOR_SRC_ALPHA]               = BLENDFACTOR_SRC_ALPHA,
   [VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA]     = BLENDFACTOR_INV_SRC_ALPHA,
   [VK_BLEND_FACTOR_DST_ALPHA]               = BLENDFACTOR_DST_ALPHA,
   [VK_BLEND_FACTOR_ONE_MINUS_DST_ALPHA]     = BLENDFACTOR_INV_DST_ALPHA,
   [VK_BLEND_FACTOR_CONSTANT_COLOR]          = BLENDFACTOR_CONST_COLOR,
   [VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_COLOR]= BLENDFACTOR_INV_CONST_COLOR,
   [VK_BLEND_FACTOR_CONSTANT_ALPHA]          = BLENDFACTOR_CONST_ALPHA,
   [VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_ALPHA]= BLENDFACTOR_INV_CONST_ALPHA,
   [VK_BLEND_FACTOR_SRC_ALPHA_SATURATE]      = BLENDFACTOR_SRC_ALPHA_SATURATE,
   [VK_BLEND_FACTOR_SRC1_COLOR]              = BLENDFACTOR_SRC1_COLOR,
   [VK_BLEND_FACTOR_ONE_MINUS_SRC1_COLOR]    = BLENDFACTOR_INV_SRC1_COLOR,
   [VK_BLEND_FACTOR_SRC1_ALPHA]              = BLENDFACTOR_SRC1_ALPHA,
   [VK_BLEND_FACTOR_ONE_MINUS_SRC1_ALPHA]    = BLENDFACTOR_INV_SRC1_ALPHA,
};

static const uint32_t vk_to_gen_blend_op[] = {
   [VK_BLEND_OP_ADD]                         = BLENDFUNCTION_ADD,
   [VK_BLEND_OP_SUBTRACT]                    = BLENDFUNCTION_SUBTRACT,
   [VK_BLEND_OP_REVERSE_SUBTRACT]            = BLENDFUNCTION_REVERSE_SUBTRACT,
   [VK_BLEND_OP_MIN]                         = BLENDFUNCTION_MIN,
   [VK_BLEND_OP_MAX]                         = BLENDFUNCTION_MAX,
};

static const uint32_t vk_to_gen_compare_op[] = {
   [VK_COMPARE_OP_NEVER]                        = PREFILTEROPNEVER,
   [VK_COMPARE_OP_LESS]                         = PREFILTEROPLESS,
   [VK_COMPARE_OP_EQUAL]                        = PREFILTEROPEQUAL,
   [VK_COMPARE_OP_LESS_OR_EQUAL]                = PREFILTEROPLEQUAL,
   [VK_COMPARE_OP_GREATER]                      = PREFILTEROPGREATER,
   [VK_COMPARE_OP_NOT_EQUAL]                    = PREFILTEROPNOTEQUAL,
   [VK_COMPARE_OP_GREATER_OR_EQUAL]             = PREFILTEROPGEQUAL,
   [VK_COMPARE_OP_ALWAYS]                       = PREFILTEROPALWAYS,
};

static const uint32_t vk_to_gen_stencil_op[] = {
   [VK_STENCIL_OP_KEEP]                         = STENCILOP_KEEP,
   [VK_STENCIL_OP_ZERO]                         = STENCILOP_ZERO,
   [VK_STENCIL_OP_REPLACE]                      = STENCILOP_REPLACE,
   [VK_STENCIL_OP_INCREMENT_AND_CLAMP]          = STENCILOP_INCRSAT,
   [VK_STENCIL_OP_DECREMENT_AND_CLAMP]          = STENCILOP_DECRSAT,
   [VK_STENCIL_OP_INVERT]                       = STENCILOP_INVERT,
   [VK_STENCIL_OP_INCREMENT_AND_WRAP]           = STENCILOP_INCR,
   [VK_STENCIL_OP_DECREMENT_AND_WRAP]           = STENCILOP_DECR,
};