/************************************************************************** * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * 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, sub license, 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 NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. * **************************************************************************/ /** * Texture Image-related functions. * \author Brian Paul */ #include "main/imports.h" #include "main/context.h" #include "main/texstore.h" #include "main/texformat.h" #include "main/enums.h" #include "main/macros.h" #include "pipe/p_context.h" #include "pipe/p_defines.h" #include "st_context.h" #include "st_format.h" static GLuint format_bits( pipe_format_rgbazs_t info, GLuint comp ) { GLuint size; if (pf_swizzle_x(info) == comp) { size = pf_size_x(info); } else if (pf_swizzle_y(info) == comp) { size = pf_size_y(info); } else if (pf_swizzle_z(info) == comp) { size = pf_size_z(info); } else if (pf_swizzle_w(info) == comp) { size = pf_size_w(info); } else { size = 0; } return size << (pf_exp8(info) * 3); } static GLuint format_max_bits( pipe_format_rgbazs_t info ) { GLuint size = format_bits( info, PIPE_FORMAT_COMP_R ); size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_G ) ); size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_B ) ); size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_A ) ); size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_Z ) ); size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_S ) ); return size; } static GLuint format_size( pipe_format_rgbazs_t info ) { return format_bits( info, PIPE_FORMAT_COMP_R ) + format_bits( info, PIPE_FORMAT_COMP_G ) + format_bits( info, PIPE_FORMAT_COMP_B ) + format_bits( info, PIPE_FORMAT_COMP_A ) + format_bits( info, PIPE_FORMAT_COMP_Z ) + format_bits( info, PIPE_FORMAT_COMP_S ); } /* * XXX temporary here */ GLboolean st_get_format_info(enum pipe_format format, struct pipe_format_info *pinfo) { if (pf_layout(format) == PIPE_FORMAT_LAYOUT_RGBAZS) { pipe_format_rgbazs_t info; info = format; #if 0 { char fmtname[256]; pf_sprint_name( fmtname, format ); printf( "%s\n", fmtname ); } #endif /* Data type */ if (format == PIPE_FORMAT_A1R5G5B5_UNORM || format == PIPE_FORMAT_R5G6B5_UNORM) { pinfo->datatype = GL_UNSIGNED_SHORT; } else { GLuint size; size = format_max_bits( info ); if (size == 8) { if (pf_type(info) == PIPE_FORMAT_TYPE_UNORM) pinfo->datatype = GL_UNSIGNED_BYTE; else pinfo->datatype = GL_BYTE; } else if (size == 16) { if (pf_type(info) == PIPE_FORMAT_TYPE_UNORM) pinfo->datatype = GL_UNSIGNED_SHORT; else pinfo->datatype = GL_SHORT; } else { assert( size <= 32 ); if (pf_type(info) == PIPE_FORMAT_TYPE_UNORM) pinfo->datatype = GL_UNSIGNED_INT; else pinfo->datatype = GL_INT; } } /* Component bits */ pinfo->red_bits = format_bits( info, PIPE_FORMAT_COMP_R ); pinfo->green_bits = format_bits( info, PIPE_FORMAT_COMP_G ); pinfo->blue_bits = format_bits( info, PIPE_FORMAT_COMP_B ); pinfo->alpha_bits = format_bits( info, PIPE_FORMAT_COMP_A ); pinfo->depth_bits = format_bits( info, PIPE_FORMAT_COMP_Z ); pinfo->stencil_bits = format_bits( info, PIPE_FORMAT_COMP_S ); pinfo->luminance_bits = 0; pinfo->intensity_bits = 0; /* Format size */ pinfo->size = format_size( info ) / 8; /* Luminance & Intensity bits */ if( pf_swizzle_x(info) == PIPE_FORMAT_COMP_R && pf_swizzle_y(info) == PIPE_FORMAT_COMP_R && pf_swizzle_z(info) == PIPE_FORMAT_COMP_R ) { if( pf_swizzle_w(info) == PIPE_FORMAT_COMP_R ) { pinfo->intensity_bits = pinfo->red_bits; } else { pinfo->luminance_bits = pinfo->red_bits; } pinfo->red_bits = 0; } /* Base format */ if (pinfo->depth_bits) { if (pinfo->stencil_bits) { pinfo->base_format = GL_DEPTH_STENCIL_EXT; } else { pinfo->base_format = GL_DEPTH_COMPONENT; } } else if (pinfo->stencil_bits) { pinfo->base_format = GL_STENCIL_INDEX; } else { pinfo->base_format = GL_RGBA; } } else { pipe_format_ycbcr_t info; assert( pf_layout(format) == PIPE_FORMAT_LAYOUT_YCBCR ); info = format; /* TODO */ assert( 0 ); } #if 0 printf( "ST_FORMAT: R(%u), G(%u), B(%u), A(%u), Z(%u), S(%u)\n", pinfo->red_bits, pinfo->green_bits, pinfo->blue_bits, pinfo->alpha_bits, pinfo->depth_bits, pinfo->stencil_bits ); #endif pinfo->format = format; return GL_TRUE; } /** * Return bytes per pixel for the given format. */ GLuint st_sizeof_format(enum pipe_format format) { struct pipe_format_info info; if (!st_get_format_info( format, &info )) { assert( 0 ); return 0; } return info.size; } /** * Return bytes per pixel for the given format. */ GLenum st_format_datatype(enum pipe_format format) { struct pipe_format_info info; if (!st_get_format_info( format, &info )) { assert( 0 ); return 0; } return info.datatype; } enum pipe_format st_mesa_format_to_pipe_format(GLuint mesaFormat) { switch (mesaFormat) { /* fix this */ case MESA_FORMAT_ARGB8888_REV: case MESA_FORMAT_ARGB8888: return PIPE_FORMAT_A8R8G8B8_UNORM; case MESA_FORMAT_ARGB1555: return PIPE_FORMAT_A1R5G5B5_UNORM; case MESA_FORMAT_ARGB4444: return PIPE_FORMAT_A4R4G4B4_UNORM; case MESA_FORMAT_RGB565: return PIPE_FORMAT_R5G6B5_UNORM; case MESA_FORMAT_AL88: return PIPE_FORMAT_U_A8_L8; case MESA_FORMAT_A8: return PIPE_FORMAT_U_A8; case MESA_FORMAT_L8: return PIPE_FORMAT_U_L8; case MESA_FORMAT_I8: return PIPE_FORMAT_U_I8; case MESA_FORMAT_Z16: return PIPE_FORMAT_Z16_UNORM; default: assert(0); return 0; } } /** * Find an RGBA format supported by the context/winsys. */ static GLuint default_rgba_format(struct pipe_context *pipe, uint type) { static const enum pipe_format colorFormats[] = { PIPE_FORMAT_R8G8B8A8_UNORM, PIPE_FORMAT_A8R8G8B8_UNORM, PIPE_FORMAT_B8G8R8A8_UNORM, PIPE_FORMAT_R5G6B5_UNORM }; uint i; for (i = 0; i < Elements(colorFormats); i++) { if (pipe->is_format_supported( pipe, colorFormats[i], type )) { return colorFormats[i]; } } return PIPE_FORMAT_NONE; } /** * Search list of formats for first RGBA format with >8 bits/channel. */ static GLuint default_deep_rgba_format(struct pipe_context *pipe, uint type) { if (pipe->is_format_supported(pipe, PIPE_FORMAT_R16G16B16A16_SNORM, type)) { return PIPE_FORMAT_R16G16B16A16_SNORM; } return PIPE_FORMAT_NONE; } /** * Find an Z format supported by the context/winsys. */ static GLuint default_depth_format(struct pipe_context *pipe, uint type) { static const enum pipe_format zFormats[] = { PIPE_FORMAT_Z16_UNORM, PIPE_FORMAT_Z32_UNORM, PIPE_FORMAT_S8Z24_UNORM, PIPE_FORMAT_Z24S8_UNORM }; uint i; for (i = 0; i < Elements(zFormats); i++) { if (pipe->is_format_supported( pipe, zFormats[i], type )) { return zFormats[i]; } } return PIPE_FORMAT_NONE; } /** * Choose the PIPE_FORMAT_ to use for storing a texture image based * on the user's internalFormat, format and type parameters. * We query the pipe device for a list of formats which it supports * and choose from them. * If we find a device that needs a more intricate selection mechanism, * this function _could_ get pushed down into the pipe device. * * Note: also used for glRenderbufferStorageEXT() * * Note: format and type may be GL_NONE (see renderbuffers) * * \return PIPE_FORMAT_NONE if error/problem. */ GLuint st_choose_pipe_format(struct pipe_context *pipe, GLint internalFormat, GLenum format, GLenum type, uint surfType) { assert(surfType == PIPE_TEXTURE || surfType == PIPE_SURFACE || surfType == PIPE_SCREEN_SURFACE); switch (internalFormat) { case 4: case GL_RGBA: case GL_COMPRESSED_RGBA: if (format == GL_BGRA) { if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) { if (pipe->is_format_supported( pipe, PIPE_FORMAT_A8R8G8B8_UNORM, surfType )) return PIPE_FORMAT_A8R8G8B8_UNORM; } else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) { if (pipe->is_format_supported( pipe, PIPE_FORMAT_A4R4G4B4_UNORM, surfType )) return PIPE_FORMAT_A4R4G4B4_UNORM; } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { if (pipe->is_format_supported( pipe, PIPE_FORMAT_A1R5G5B5_UNORM, surfType )) return PIPE_FORMAT_A1R5G5B5_UNORM; } } return default_rgba_format( pipe, surfType ); case 3: case GL_RGB: case GL_COMPRESSED_RGB: if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) { if (pipe->is_format_supported( pipe, PIPE_FORMAT_R5G6B5_UNORM, surfType )) return PIPE_FORMAT_R5G6B5_UNORM; } return default_rgba_format( pipe, surfType ); case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: return default_rgba_format( pipe, surfType ); case GL_RGBA16: return default_deep_rgba_format( pipe, surfType ); case GL_RGBA4: case GL_RGBA2: if (pipe->is_format_supported( pipe, PIPE_FORMAT_A4R4G4B4_UNORM, surfType )) return PIPE_FORMAT_A4R4G4B4_UNORM; return default_rgba_format( pipe, surfType ); case GL_RGB5_A1: if (pipe->is_format_supported( pipe, PIPE_FORMAT_A1R5G5B5_UNORM, surfType )) return PIPE_FORMAT_A1R5G5B5_UNORM; return default_rgba_format( pipe, surfType ); case GL_RGB8: case GL_RGB10: case GL_RGB12: case GL_RGB16: return default_rgba_format( pipe, surfType ); case GL_RGB5: case GL_RGB4: case GL_R3_G3_B2: if (pipe->is_format_supported( pipe, PIPE_FORMAT_A1R5G5B5_UNORM, surfType )) return PIPE_FORMAT_A1R5G5B5_UNORM; if (pipe->is_format_supported( pipe, PIPE_FORMAT_R5G6B5_UNORM, surfType )) return PIPE_FORMAT_R5G6B5_UNORM; return default_rgba_format( pipe, surfType ); case GL_ALPHA: case GL_ALPHA4: case GL_ALPHA8: case GL_ALPHA12: case GL_ALPHA16: case GL_COMPRESSED_ALPHA: if (pipe->is_format_supported( pipe, PIPE_FORMAT_U_A8, surfType )) return PIPE_FORMAT_U_A8; return default_rgba_format( pipe, surfType ); case 1: case GL_LUMINANCE: case GL_LUMINANCE4: case GL_LUMINANCE8: case GL_LUMINANCE12: case GL_LUMINANCE16: case GL_COMPRESSED_LUMINANCE: if (pipe->is_format_supported( pipe, PIPE_FORMAT_U_A8, surfType )) return PIPE_FORMAT_U_A8; return default_rgba_format( pipe, surfType ); case 2: case GL_LUMINANCE_ALPHA: case GL_LUMINANCE4_ALPHA4: case GL_LUMINANCE6_ALPHA2: case GL_LUMINANCE8_ALPHA8: case GL_LUMINANCE12_ALPHA4: case GL_LUMINANCE12_ALPHA12: case GL_LUMINANCE16_ALPHA16: case GL_COMPRESSED_LUMINANCE_ALPHA: if (pipe->is_format_supported( pipe, PIPE_FORMAT_U_A8_L8, surfType )) return PIPE_FORMAT_U_A8_L8; return default_rgba_format( pipe, surfType ); case GL_INTENSITY: case GL_INTENSITY4: case GL_INTENSITY8: case GL_INTENSITY12: case GL_INTENSITY16: case GL_COMPRESSED_INTENSITY: if (pipe->is_format_supported( pipe, PIPE_FORMAT_U_I8, surfType )) return PIPE_FORMAT_U_I8; return default_rgba_format( pipe, surfType ); case GL_YCBCR_MESA: if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE) { if (pipe->is_format_supported( pipe, PIPE_FORMAT_YCBCR, surfType )) return PIPE_FORMAT_YCBCR; } else { if (pipe->is_format_supported( pipe, PIPE_FORMAT_YCBCR_REV, surfType )) return PIPE_FORMAT_YCBCR_REV; } return PIPE_FORMAT_NONE; #if 0 case GL_COMPRESSED_RGB_FXT1_3DFX: return &_mesa_texformat_rgb_fxt1; case GL_COMPRESSED_RGBA_FXT1_3DFX: return &_mesa_texformat_rgba_fxt1; case GL_RGB_S3TC: case GL_RGB4_S3TC: case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return &_mesa_texformat_rgb_dxt1; case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return &_mesa_texformat_rgba_dxt1; case GL_RGBA_S3TC: case GL_RGBA4_S3TC: case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: return &_mesa_texformat_rgba_dxt3; case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: return &_mesa_texformat_rgba_dxt5; #endif case GL_DEPTH_COMPONENT16: if (pipe->is_format_supported( pipe, PIPE_FORMAT_Z16_UNORM, surfType )) return PIPE_FORMAT_Z16_UNORM; /* fall-through */ case GL_DEPTH_COMPONENT24: if (pipe->is_format_supported( pipe, PIPE_FORMAT_S8Z24_UNORM, surfType )) return PIPE_FORMAT_S8Z24_UNORM; if (pipe->is_format_supported( pipe, PIPE_FORMAT_Z24S8_UNORM, surfType )) return PIPE_FORMAT_Z24S8_UNORM; /* fall-through */ case GL_DEPTH_COMPONENT32: if (pipe->is_format_supported( pipe, PIPE_FORMAT_Z32_UNORM, surfType )) return PIPE_FORMAT_Z32_UNORM; /* fall-through */ case GL_DEPTH_COMPONENT: return default_depth_format( pipe, surfType ); case GL_STENCIL_INDEX: case GL_STENCIL_INDEX1_EXT: case GL_STENCIL_INDEX4_EXT: case GL_STENCIL_INDEX8_EXT: case GL_STENCIL_INDEX16_EXT: if (pipe->is_format_supported( pipe, PIPE_FORMAT_U_S8, surfType )) return PIPE_FORMAT_U_S8; if (pipe->is_format_supported( pipe, PIPE_FORMAT_S8Z24_UNORM, surfType )) return PIPE_FORMAT_S8Z24_UNORM; if (pipe->is_format_supported( pipe, PIPE_FORMAT_Z24S8_UNORM, surfType )) return PIPE_FORMAT_Z24S8_UNORM; return PIPE_FORMAT_NONE; case GL_DEPTH_STENCIL_EXT: case GL_DEPTH24_STENCIL8_EXT: if (pipe->is_format_supported( pipe, PIPE_FORMAT_S8Z24_UNORM, surfType )) return PIPE_FORMAT_S8Z24_UNORM; if (pipe->is_format_supported( pipe, PIPE_FORMAT_Z24S8_UNORM, surfType )) return PIPE_FORMAT_Z24S8_UNORM; return PIPE_FORMAT_NONE; default: return PIPE_FORMAT_NONE; } } /* It works out that this function is fine for all the supported * hardware. However, there is still a need to map the formats onto * hardware descriptors. */ /* Note that the i915 can actually support many more formats than * these if we take the step of simply swizzling the colors * immediately after sampling... */ const struct gl_texture_format * st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat, GLenum format, GLenum type) { #if 0 struct intel_context *intel = intel_context(ctx); const GLboolean do32bpt = (intel->intelScreen->front.cpp == 4); #else const GLboolean do32bpt = 1; #endif (void) ctx; switch (internalFormat) { case 4: case GL_RGBA: case GL_COMPRESSED_RGBA: if (format == GL_BGRA) { if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) { return &_mesa_texformat_argb8888; } else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) { return &_mesa_texformat_argb4444; } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { return &_mesa_texformat_argb1555; } } return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444; case 3: case GL_RGB: case GL_COMPRESSED_RGB: if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) { return &_mesa_texformat_rgb565; } return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_rgb565; case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: case GL_RGBA16: return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444; case GL_RGBA4: case GL_RGBA2: return &_mesa_texformat_argb4444; case GL_RGB5_A1: return &_mesa_texformat_argb1555; case GL_RGB8: case GL_RGB10: case GL_RGB12: case GL_RGB16: return &_mesa_texformat_argb8888; case GL_RGB5: case GL_RGB4: case GL_R3_G3_B2: return &_mesa_texformat_rgb565; case GL_ALPHA: case GL_ALPHA4: case GL_ALPHA8: case GL_ALPHA12: case GL_ALPHA16: case GL_COMPRESSED_ALPHA: return &_mesa_texformat_a8; case 1: case GL_LUMINANCE: case GL_LUMINANCE4: case GL_LUMINANCE8: case GL_LUMINANCE12: case GL_LUMINANCE16: case GL_COMPRESSED_LUMINANCE: return &_mesa_texformat_l8; case 2: case GL_LUMINANCE_ALPHA: case GL_LUMINANCE4_ALPHA4: case GL_LUMINANCE6_ALPHA2: case GL_LUMINANCE8_ALPHA8: case GL_LUMINANCE12_ALPHA4: case GL_LUMINANCE12_ALPHA12: case GL_LUMINANCE16_ALPHA16: case GL_COMPRESSED_LUMINANCE_ALPHA: return &_mesa_texformat_al88; case GL_INTENSITY: case GL_INTENSITY4: case GL_INTENSITY8: case GL_INTENSITY12: case GL_INTENSITY16: case GL_COMPRESSED_INTENSITY: return &_mesa_texformat_i8; case GL_YCBCR_MESA: if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE) return &_mesa_texformat_ycbcr; else return &_mesa_texformat_ycbcr_rev; case GL_COMPRESSED_RGB_FXT1_3DFX: return &_mesa_texformat_rgb_fxt1; case GL_COMPRESSED_RGBA_FXT1_3DFX: return &_mesa_texformat_rgba_fxt1; case GL_RGB_S3TC: case GL_RGB4_S3TC: case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return &_mesa_texformat_rgb_dxt1; case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return &_mesa_texformat_rgba_dxt1; case GL_RGBA_S3TC: case GL_RGBA4_S3TC: case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: return &_mesa_texformat_rgba_dxt3; case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: return &_mesa_texformat_rgba_dxt5; case GL_DEPTH_COMPONENT: case GL_DEPTH_COMPONENT16: case GL_DEPTH_COMPONENT24: case GL_DEPTH_COMPONENT32: return &_mesa_texformat_z16; case GL_DEPTH_STENCIL_EXT: case GL_DEPTH24_STENCIL8_EXT: return &_mesa_texformat_z24_s8; default: fprintf(stderr, "unexpected texture format %s in %s\n", _mesa_lookup_enum_by_nr(internalFormat), __FUNCTION__); return NULL; } return NULL; /* never get here */ }