| /* |
| * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org> |
| * |
| * 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. |
| * |
| * Authors: |
| * Rob Clark <robclark@freedesktop.org> |
| */ |
| |
| #include "pipe/p_defines.h" |
| #include "util/u_format.h" |
| |
| #include "fd2_util.h" |
| |
| enum a2xx_sq_surfaceformat |
| fd2_pipe2surface(enum pipe_format format) |
| { |
| const struct util_format_description *desc = util_format_description(format); |
| |
| if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) { |
| switch (format) { |
| /* Compressed textures. */ |
| case PIPE_FORMAT_ETC1_RGB8: |
| return FMT_ETC1_RGB; |
| case PIPE_FORMAT_DXT1_RGB: |
| case PIPE_FORMAT_DXT1_RGBA: |
| return FMT_DXT1; |
| case PIPE_FORMAT_DXT3_RGBA: |
| return FMT_DXT2_3; |
| case PIPE_FORMAT_DXT5_RGBA: |
| return FMT_DXT4_5; |
| case PIPE_FORMAT_ATC_RGB: |
| return FMT_ATI_TC_555_565_RGB; |
| case PIPE_FORMAT_ATC_RGBA_EXPLICIT: |
| return FMT_ATI_TC_555_565_RGBA; |
| case PIPE_FORMAT_ATC_RGBA_INTERPOLATED: |
| return FMT_ATI_TC_555_565_RGBA_INTERP; |
| /* YUV buffers. */ |
| case PIPE_FORMAT_UYVY: |
| return FMT_Y1_Cr_Y0_Cb; |
| case PIPE_FORMAT_YUYV: |
| return FMT_Cr_Y1_Cb_Y0; |
| default: |
| return ~0; |
| } |
| } |
| |
| uint32_t channel_size = 0; |
| for (unsigned i = 0; i < 4; i++) |
| channel_size |= desc->channel[i].size << i*8; |
| |
| /* Note: the 3 channel 24bpp/48bpp/96bpp formats are only for vertex fetch |
| * we can use the 4 channel format and ignore the 4th component just isn't used |
| * XXX: is it possible for the extra loaded component to cause a MMU fault? |
| */ |
| |
| #define CASE(r, g, b, a) case (r | g << 8 | b << 16 | a << 24) |
| if (desc->channel[0].type == UTIL_FORMAT_TYPE_FLOAT) { |
| switch (channel_size) { |
| CASE(16, 0, 0, 0): return FMT_16_FLOAT; |
| CASE(16, 16, 0, 0): return FMT_16_16_FLOAT; |
| CASE(16, 16, 16, 0): return FMT_16_16_16_16_FLOAT; /* Note: only for vertex */ |
| CASE(16, 16, 16, 16): return FMT_16_16_16_16_FLOAT; |
| CASE(32, 0, 0, 0): return FMT_32_FLOAT; |
| CASE(32, 32, 0, 0): return FMT_32_32_FLOAT; |
| CASE(32, 32, 32, 0): return FMT_32_32_32_FLOAT; |
| CASE(32, 32, 32, 32): return FMT_32_32_32_32_FLOAT; |
| } |
| } else if (desc->is_unorm || desc->is_snorm) { |
| switch (channel_size) { |
| CASE( 8, 0, 0, 0): return FMT_8; |
| CASE( 8, 8, 0, 0): return FMT_8_8; |
| CASE( 8, 8, 8, 0): return FMT_8_8_8_8; /* Note: only for vertex */ |
| CASE( 8, 8, 8, 8): return FMT_8_8_8_8; |
| CASE(16, 0, 0, 0): return FMT_16; |
| CASE(16, 16, 0, 0): return FMT_16_16; |
| CASE(16, 16, 16, 0): return FMT_16_16_16_16; /* Note: only for vertex */ |
| CASE(16, 16, 16, 16): return FMT_16_16_16_16; |
| CASE(32, 0, 0, 0): return FMT_32; |
| CASE(32, 32, 0, 0): return FMT_32_32; |
| CASE(32, 32, 32, 0): return FMT_32_32_32_32; /* Note: only for vertex */ |
| CASE(32, 32, 32, 32): return FMT_32_32_32_32; |
| CASE( 4, 4, 4, 4): return FMT_4_4_4_4; |
| CASE( 5, 5, 5, 1): return FMT_1_5_5_5; |
| CASE( 5, 6, 5, 0): return FMT_5_6_5; |
| CASE(10, 10, 10, 2): return FMT_2_10_10_10; |
| CASE( 8, 24, 0, 0): return FMT_24_8; |
| } |
| } |
| #undef CASE |
| |
| return ~0; |
| } |
| |
| enum a2xx_colorformatx |
| fd2_pipe2color(enum pipe_format format) |
| { |
| switch (format) { |
| /* 8-bit buffers. */ |
| case PIPE_FORMAT_R8_UNORM: |
| return COLORX_8; |
| |
| /* 16-bit buffers. */ |
| case PIPE_FORMAT_B5G6R5_UNORM: |
| return COLORX_5_6_5; |
| case PIPE_FORMAT_B5G5R5A1_UNORM: |
| case PIPE_FORMAT_B5G5R5X1_UNORM: |
| return COLORX_1_5_5_5; |
| case PIPE_FORMAT_B4G4R4A4_UNORM: |
| case PIPE_FORMAT_B4G4R4X4_UNORM: |
| return COLORX_4_4_4_4; |
| case PIPE_FORMAT_R8G8_UNORM: |
| return COLORX_8_8; |
| |
| /* 32-bit buffers. */ |
| case PIPE_FORMAT_B8G8R8A8_UNORM: |
| case PIPE_FORMAT_B8G8R8X8_UNORM: |
| case PIPE_FORMAT_R8G8B8A8_UNORM: |
| case PIPE_FORMAT_R8G8B8X8_UNORM: |
| return COLORX_8_8_8_8; |
| /* Note: snorm untested */ |
| case PIPE_FORMAT_R8G8B8A8_SNORM: |
| case PIPE_FORMAT_R8G8B8X8_SNORM: |
| return COLORX_S8_8_8_8; |
| |
| /* float buffers */ |
| case PIPE_FORMAT_R16_FLOAT: |
| return COLORX_16_FLOAT; |
| case PIPE_FORMAT_R16G16_FLOAT: |
| return COLORX_16_16_FLOAT; |
| case PIPE_FORMAT_R16G16B16A16_FLOAT: |
| return COLORX_16_16_16_16_FLOAT; |
| case PIPE_FORMAT_R32_FLOAT: |
| return COLORX_32_FLOAT; |
| case PIPE_FORMAT_R32G32_FLOAT: |
| return COLORX_32_32_FLOAT; |
| case PIPE_FORMAT_R32G32B32A32_FLOAT: |
| return COLORX_32_32_32_32_FLOAT; |
| |
| default: |
| return ~0; |
| } |
| } |
| |
| static inline enum sq_tex_swiz |
| tex_swiz(unsigned swiz) |
| { |
| switch (swiz) { |
| default: |
| case PIPE_SWIZZLE_X: return SQ_TEX_X; |
| case PIPE_SWIZZLE_Y: return SQ_TEX_Y; |
| case PIPE_SWIZZLE_Z: return SQ_TEX_Z; |
| case PIPE_SWIZZLE_W: return SQ_TEX_W; |
| case PIPE_SWIZZLE_0: return SQ_TEX_ZERO; |
| case PIPE_SWIZZLE_1: return SQ_TEX_ONE; |
| } |
| } |
| |
| uint32_t |
| fd2_tex_swiz(enum pipe_format format, unsigned swizzle_r, unsigned swizzle_g, |
| unsigned swizzle_b, unsigned swizzle_a) |
| { |
| const struct util_format_description *desc = |
| util_format_description(format); |
| unsigned char swiz[4] = { |
| swizzle_r, swizzle_g, swizzle_b, swizzle_a, |
| }, rswiz[4]; |
| |
| util_format_compose_swizzles(desc->swizzle, swiz, rswiz); |
| |
| return A2XX_SQ_TEX_3_SWIZ_X(tex_swiz(rswiz[0])) | |
| A2XX_SQ_TEX_3_SWIZ_Y(tex_swiz(rswiz[1])) | |
| A2XX_SQ_TEX_3_SWIZ_Z(tex_swiz(rswiz[2])) | |
| A2XX_SQ_TEX_3_SWIZ_W(tex_swiz(rswiz[3])); |
| } |