/* $Id: teximage.c,v 1.117 2002/09/27 02:45:38 brianp Exp $ */ /* * Mesa 3-D graphics library * Version: 4.1 * * Copyright (C) 1999-2002 Brian Paul 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, 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 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 * BRIAN PAUL 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. */ #ifdef PC_HEADER #include "all.h" #else #include "glheader.h" #include "context.h" #include "convolve.h" #include "image.h" #include "macros.h" #include "mem.h" #include "mmath.h" #include "state.h" #include "texcompress.h" #include "texformat.h" #include "teximage.h" #include "texstate.h" #include "texstore.h" #include "mtypes.h" #endif /* * NOTES: * * Mesa's native texture datatype is GLchan. Native formats are * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA, * and GL_COLOR_INDEX. * Device drivers are free to implement any internal format they want. */ #if 0 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img) { #if CHAN_TYPE == GL_FLOAT _mesa_problem(NULL, "PrintTexture doesn't support float channels"); #else GLuint i, j, c; const GLchan *data = (const GLchan *) img->Data; if (!data) { _mesa_printf(ctx, "No texture data\n"); return; } switch (img->Format) { case GL_ALPHA: case GL_LUMINANCE: case GL_INTENSITY: case GL_COLOR_INDEX: c = 1; break; case GL_LUMINANCE_ALPHA: c = 2; break; case GL_RGB: c = 3; break; case GL_RGBA: c = 4; break; default: _mesa_problem(NULL, "error in PrintTexture\n"); return; } for (i = 0; i < img->Height; i++) { for (j = 0; j < img->Width; j++) { if (c==1) _mesa_printf(ctx, "%02x ", data[0]); else if (c==2) _mesa_printf(ctx, "%02x%02x ", data[0], data[1]); else if (c==3) _mesa_printf(ctx, "%02x%02x%02x ", data[0], data[1], data[2]); else if (c==4) _mesa_printf(ctx, "%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]); data += (img->RowStride - img->Width) * c; } _mesa_printf(ctx, "\n"); } #endif } #endif /* * Compute log base 2 of n. * If n isn't an exact power of two return -1. * If n < 0 return -1. */ static int logbase2( int n ) { GLint i = 1; GLint log2 = 0; if (n < 0) { return -1; } while ( n > i ) { i *= 2; log2++; } if (i != n) { return -1; } else { return log2; } } /* * Given an internal texture format enum or 1, 2, 3, 4 return the * corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE, * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. * * This is the format which is used during texture application (i.e. the * texture format and env mode determine the arithmetic used. * * Return -1 if invalid enum. */ GLint _mesa_base_tex_format( GLcontext *ctx, GLint format ) { /* * Ask the driver for the base format, if it doesn't * know, it will return -1; */ switch (format) { case GL_ALPHA: case GL_ALPHA4: case GL_ALPHA8: case GL_ALPHA12: case GL_ALPHA16: return GL_ALPHA; case 1: case GL_LUMINANCE: case GL_LUMINANCE4: case GL_LUMINANCE8: case GL_LUMINANCE12: case GL_LUMINANCE16: return GL_LUMINANCE; 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: return GL_LUMINANCE_ALPHA; case GL_INTENSITY: case GL_INTENSITY4: case GL_INTENSITY8: case GL_INTENSITY12: case GL_INTENSITY16: return GL_INTENSITY; case 3: case GL_RGB: case GL_R3_G3_B2: case GL_RGB4: case GL_RGB5: case GL_RGB8: case GL_RGB10: case GL_RGB12: case GL_RGB16: return GL_RGB; case 4: case GL_RGBA: case GL_RGBA2: case GL_RGBA4: case GL_RGB5_A1: case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: case GL_RGBA16: return GL_RGBA; case GL_COLOR_INDEX: case GL_COLOR_INDEX1_EXT: case GL_COLOR_INDEX2_EXT: case GL_COLOR_INDEX4_EXT: case GL_COLOR_INDEX8_EXT: case GL_COLOR_INDEX12_EXT: case GL_COLOR_INDEX16_EXT: return GL_COLOR_INDEX; case GL_DEPTH_COMPONENT: case GL_DEPTH_COMPONENT16_SGIX: case GL_DEPTH_COMPONENT24_SGIX: case GL_DEPTH_COMPONENT32_SGIX: if (ctx->Extensions.SGIX_depth_texture) return GL_DEPTH_COMPONENT; else return -1; /* GL_ARB_texture_compression */ case GL_COMPRESSED_ALPHA: if (ctx->Extensions.ARB_texture_compression) return GL_ALPHA; else return -1; case GL_COMPRESSED_LUMINANCE: if (ctx->Extensions.ARB_texture_compression) return GL_LUMINANCE; else return -1; case GL_COMPRESSED_LUMINANCE_ALPHA: if (ctx->Extensions.ARB_texture_compression) return GL_LUMINANCE_ALPHA; else return -1; case GL_COMPRESSED_INTENSITY: if (ctx->Extensions.ARB_texture_compression) return GL_INTENSITY; else return -1; case GL_COMPRESSED_RGB: if (ctx->Extensions.ARB_texture_compression) return GL_RGB; else return -1; case GL_COMPRESSED_RGBA: if (ctx->Extensions.ARB_texture_compression) return GL_RGBA; else return -1; case GL_COMPRESSED_RGB_FXT1_3DFX: if (ctx->Extensions.TDFX_texture_compression_FXT1) return GL_RGB; else return -1; case GL_COMPRESSED_RGBA_FXT1_3DFX: if (ctx->Extensions.TDFX_texture_compression_FXT1) return GL_RGBA; else return -1; case GL_YCBCR_MESA: if (ctx->Extensions.MESA_ycbcr_texture) return GL_YCBCR_MESA; else return -1; default: return -1; /* error */ } } /* * Test if the given image format is a color/rgba format. That is, * not color index, depth, stencil, etc. */ static GLboolean is_color_format(GLenum format) { switch (format) { case GL_ALPHA: case GL_ALPHA4: case GL_ALPHA8: case GL_ALPHA12: case GL_ALPHA16: case 1: case GL_LUMINANCE: case GL_LUMINANCE4: case GL_LUMINANCE8: case GL_LUMINANCE12: case GL_LUMINANCE16: 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_INTENSITY: case GL_INTENSITY4: case GL_INTENSITY8: case GL_INTENSITY12: case GL_INTENSITY16: case 3: case GL_RGB: case GL_R3_G3_B2: case GL_RGB4: case GL_RGB5: case GL_RGB8: case GL_RGB10: case GL_RGB12: case GL_RGB16: case 4: case GL_RGBA: case GL_RGBA2: case GL_RGBA4: case GL_RGB5_A1: case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: case GL_RGBA16: return GL_TRUE; case GL_YCBCR_MESA: /* not considered to be RGB */ default: return GL_FALSE; } } static GLboolean is_index_format(GLenum format) { switch (format) { case GL_COLOR_INDEX: case GL_COLOR_INDEX1_EXT: case GL_COLOR_INDEX2_EXT: case GL_COLOR_INDEX4_EXT: case GL_COLOR_INDEX8_EXT: case GL_COLOR_INDEX12_EXT: case GL_COLOR_INDEX16_EXT: return GL_TRUE; default: return GL_FALSE; } } /** * Return GL_TRUE if internalFormat is a supported compressed format, * return GL_FALSE otherwise. * \param - internalFormat - the internal format token provided by the user */ static GLboolean is_compressed_format(GLenum internalFormat) { switch (internalFormat) { case GL_COMPRESSED_RGB_FXT1_3DFX: case GL_COMPRESSED_RGBA_FXT1_3DFX: return GL_TRUE; default: return GL_FALSE; } } /* * Store a gl_texture_image pointer in a gl_texture_object structure * according to the target and level parameters. * This was basically prompted by the introduction of cube maps. */ void _mesa_set_tex_image(struct gl_texture_object *tObj, GLenum target, GLint level, struct gl_texture_image *texImage) { ASSERT(tObj); ASSERT(texImage); switch (target) { case GL_TEXTURE_1D: case GL_TEXTURE_2D: case GL_TEXTURE_3D: tObj->Image[level] = texImage; return; case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: tObj->Image[level] = texImage; return; case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: tObj->NegX[level] = texImage; return; case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: tObj->PosY[level] = texImage; return; case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: tObj->NegY[level] = texImage; return; case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: tObj->PosZ[level] = texImage; return; case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: tObj->NegZ[level] = texImage; return; case GL_TEXTURE_RECTANGLE_NV: ASSERT(level == 0); tObj->Image[level] = texImage; return; default: _mesa_problem(NULL, "bad target in _mesa_set_tex_image()"); return; } } /* * Return new gl_texture_image struct with all fields initialized to zero. */ struct gl_texture_image * _mesa_alloc_texture_image( void ) { return CALLOC_STRUCT(gl_texture_image); } void _mesa_free_texture_image( struct gl_texture_image *teximage ) { if (teximage->Data) { MESA_PBUFFER_FREE( teximage->Data ); teximage->Data = NULL; } FREE( teximage ); } /* * Return GL_TRUE if the target is a proxy target. */ static GLboolean is_proxy_target(GLenum target) { return (target == GL_PROXY_TEXTURE_1D || target == GL_PROXY_TEXTURE_2D || target == GL_PROXY_TEXTURE_3D || target == GL_PROXY_TEXTURE_CUBE_MAP_ARB); } /* * Given a texture unit and a texture target, return the corresponding * texture object. */ struct gl_texture_object * _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit, GLenum target) { switch (target) { case GL_TEXTURE_1D: return texUnit->Current1D; case GL_PROXY_TEXTURE_1D: return ctx->Texture.Proxy1D; case GL_TEXTURE_2D: return texUnit->Current2D; case GL_PROXY_TEXTURE_2D: return ctx->Texture.Proxy2D; case GL_TEXTURE_3D: return texUnit->Current3D; case GL_PROXY_TEXTURE_3D: return ctx->Texture.Proxy3D; case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: case GL_TEXTURE_CUBE_MAP_ARB: return ctx->Extensions.ARB_texture_cube_map ? texUnit->CurrentCubeMap : NULL; case GL_PROXY_TEXTURE_CUBE_MAP_ARB: return ctx->Extensions.ARB_texture_cube_map ? ctx->Texture.ProxyCubeMap : NULL; case GL_TEXTURE_RECTANGLE_NV: return ctx->Extensions.NV_texture_rectangle ? texUnit->CurrentRect : NULL; case GL_PROXY_TEXTURE_RECTANGLE_NV: return ctx->Extensions.NV_texture_rectangle ? ctx->Texture.ProxyRect : NULL; default: _mesa_problem(NULL, "bad target in _mesa_select_tex_object()"); return NULL; } } /* * Return the texture image struct which corresponds to target and level * for the given texture unit. */ struct gl_texture_image * _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit, GLenum target, GLint level) { ASSERT(texUnit); ASSERT(level < MAX_TEXTURE_LEVELS); switch (target) { case GL_TEXTURE_1D: return texUnit->Current1D->Image[level]; case GL_PROXY_TEXTURE_1D: return ctx->Texture.Proxy1D->Image[level]; case GL_TEXTURE_2D: return texUnit->Current2D->Image[level]; case GL_PROXY_TEXTURE_2D: return ctx->Texture.Proxy2D->Image[level]; case GL_TEXTURE_3D: return texUnit->Current3D->Image[level]; case GL_PROXY_TEXTURE_3D: return ctx->Texture.Proxy3D->Image[level]; case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: if (ctx->Extensions.ARB_texture_cube_map) return texUnit->CurrentCubeMap->Image[level]; else return NULL; case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: if (ctx->Extensions.ARB_texture_cube_map) return texUnit->CurrentCubeMap->NegX[level]; else return NULL; case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: if (ctx->Extensions.ARB_texture_cube_map) return texUnit->CurrentCubeMap->PosY[level]; else return NULL; case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: if (ctx->Extensions.ARB_texture_cube_map) return texUnit->CurrentCubeMap->NegY[level]; else return NULL; case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: if (ctx->Extensions.ARB_texture_cube_map) return texUnit->CurrentCubeMap->PosZ[level]; else return NULL; case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: if (ctx->Extensions.ARB_texture_cube_map) return texUnit->CurrentCubeMap->NegZ[level]; else return NULL; case GL_PROXY_TEXTURE_CUBE_MAP_ARB: if (ctx->Extensions.ARB_texture_cube_map) return ctx->Texture.ProxyCubeMap->Image[level]; else return NULL; case GL_TEXTURE_RECTANGLE_NV: if (ctx->Extensions.NV_texture_rectangle) { ASSERT(level == 0); return texUnit->CurrentRect->Image[level]; } else { return NULL; } case GL_PROXY_TEXTURE_RECTANGLE_NV: if (ctx->Extensions.NV_texture_rectangle) { ASSERT(level == 0); return ctx->Texture.ProxyRect->Image[level]; } else { return NULL; } default: _mesa_problem(ctx, "bad target in _mesa_select_tex_image()"); return NULL; } } #if 000 /* not used anymore */ /* * glTexImage[123]D can accept a NULL image pointer. In this case we * create a texture image with unspecified image contents per the OpenGL * spec. */ static GLubyte * make_null_texture(GLint width, GLint height, GLint depth, GLenum format) { const GLint components = _mesa_components_in_format(format); const GLint numPixels = width * height * depth; GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte)); #ifdef DEBUG /* * Let's see if anyone finds this. If glTexImage2D() is called with * a NULL image pointer then load the texture image with something * interesting instead of leaving it indeterminate. */ if (data) { static const char message[8][32] = { " X X XXXXX XXX X ", " XX XX X X X X X ", " X X X X X X X ", " X X XXXX XXX XXXXX ", " X X X X X X ", " X X X X X X X ", " X X XXXXX XXX X X ", " " }; GLubyte *imgPtr = data; GLint h, i, j, k; for (h = 0; h < depth; h++) { for (i = 0; i < height; i++) { GLint srcRow = 7 - (i % 8); for (j = 0; j < width; j++) { GLint srcCol = j % 32; GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70; for (k = 0; k < components; k++) { *imgPtr++ = texel; } } } } } #endif return data; } #endif /* * Reset the fields of a gl_texture_image struct to zero. * This is called when a proxy texture test fails, we set all the * image members (except DriverData) to zero. * It's also used in glTexImage[123]D as a safeguard to be sure all * required fields get initialized properly by the Driver.TexImage[123]D * functions. */ static void clear_teximage_fields(struct gl_texture_image *img) { ASSERT(img); img->Format = 0; img->IntFormat = 0; img->Border = 0; img->Width = 0; img->Height = 0; img->Depth = 0; img->RowStride = 0; img->Width2 = 0; img->Height2 = 0; img->Depth2 = 0; img->WidthLog2 = 0; img->HeightLog2 = 0; img->DepthLog2 = 0; img->Data = NULL; img->TexFormat = &_mesa_null_texformat; img->FetchTexel = NULL; img->IsCompressed = 0; img->CompressedSize = 0; } /* * Initialize basic fields of the gl_texture_image struct. */ void _mesa_init_teximage_fields(GLcontext *ctx, GLenum target, struct gl_texture_image *img, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum internalFormat) { ASSERT(img); img->Format = _mesa_base_tex_format( ctx, internalFormat ); ASSERT(img->Format > 0); img->IntFormat = internalFormat; img->Border = border; img->Width = width; img->Height = height; img->Depth = depth; img->RowStride = width; img->WidthLog2 = logbase2(width - 2 * border); if (height == 1) /* 1-D texture */ img->HeightLog2 = 0; else img->HeightLog2 = logbase2(height - 2 * border); if (depth == 1) /* 2-D texture */ img->DepthLog2 = 0; else img->DepthLog2 = logbase2(depth - 2 * border); img->Width2 = 1 << img->WidthLog2; img->Height2 = 1 << img->HeightLog2; img->Depth2 = 1 << img->DepthLog2; img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); img->IsCompressed = is_compressed_format(internalFormat); if (img->IsCompressed) img->CompressedSize = _mesa_compressed_texture_size(ctx, width, height, depth, internalFormat); else img->CompressedSize = 0; /* Compute Width/Height/DepthScale for mipmap lod computation */ if (target == GL_TEXTURE_RECTANGLE_NV) { /* scale = 1.0 since texture coords directly map to texels */ img->WidthScale = 1.0; img->HeightScale = 1.0; img->DepthScale = 1.0; } else { img->WidthScale = (GLfloat) img->Width; img->HeightScale = (GLfloat) img->Height; img->DepthScale = (GLfloat) img->Depth; } } /* * Test glTexImage[123]D() parameters for errors. * Input: * dimensions - must be 1 or 2 or 3 * Return: GL_TRUE = an error was detected, GL_FALSE = no errors */ static GLboolean texture_error_check( GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLenum format, GLenum type, GLuint dimensions, GLint width, GLint height, GLint depth, GLint border ) { GLboolean isProxy; GLint maxLevels = 0, maxTextureSize; if (dimensions == 1) { if (target == GL_PROXY_TEXTURE_1D) { isProxy = GL_TRUE; } else if (target == GL_TEXTURE_1D) { isProxy = GL_FALSE; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" ); return GL_TRUE; } maxLevels = ctx->Const.MaxTextureLevels; } else if (dimensions == 2) { if (target == GL_PROXY_TEXTURE_2D) { isProxy = GL_TRUE; maxLevels = ctx->Const.MaxTextureLevels; } else if (target == GL_TEXTURE_2D) { isProxy = GL_FALSE; maxLevels = ctx->Const.MaxTextureLevels; } else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { if (!ctx->Extensions.ARB_texture_cube_map) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)"); return GL_TRUE; } isProxy = GL_TRUE; maxLevels = ctx->Const.MaxCubeTextureLevels; } else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { if (!ctx->Extensions.ARB_texture_cube_map) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)"); return GL_TRUE; } isProxy = GL_FALSE; maxLevels = ctx->Const.MaxCubeTextureLevels; } else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV) { if (!ctx->Extensions.NV_texture_rectangle) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)"); return GL_TRUE; } isProxy = GL_TRUE; maxLevels = 1; } else if (target == GL_TEXTURE_RECTANGLE_NV) { if (!ctx->Extensions.NV_texture_rectangle) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)"); return GL_TRUE; } isProxy = GL_FALSE; maxLevels = 1; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)"); return GL_TRUE; } } else if (dimensions == 3) { if (target == GL_PROXY_TEXTURE_3D) { isProxy = GL_TRUE; } else if (target == GL_TEXTURE_3D) { isProxy = GL_FALSE; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" ); return GL_TRUE; } maxLevels = ctx->Const.Max3DTextureLevels; } else { _mesa_problem( ctx, "bad dims in texture_error_check" ); return GL_TRUE; } ASSERT(maxLevels > 0); maxTextureSize = 1 << (maxLevels - 1); /* Border */ if (border != 0 && border != 1) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage%dD(border=%d)", dimensions, border); } return GL_TRUE; } if ((target == GL_TEXTURE_RECTANGLE_NV || target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0) { return GL_TRUE; } /* Width */ if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_PROXY_TEXTURE_RECTANGLE_NV) { if (width < 1 || width > ctx->Const.MaxTextureRectSize) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage%dD(width=%d)", dimensions, width); } return GL_TRUE; } } else if (width < 2 * border || width > 2 + maxTextureSize || logbase2( width - 2 * border ) < 0) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage%dD(width=%d)", dimensions, width); } return GL_TRUE; } /* Height */ if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_PROXY_TEXTURE_RECTANGLE_NV) { if (height < 1 || height > ctx->Const.MaxTextureRectSize) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage%dD(height=%d)", dimensions, height); } return GL_TRUE; } } else if (dimensions >= 2) { if (height < 2 * border || height > 2 + maxTextureSize || logbase2( height - 2 * border ) < 0) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage%dD(height=%d)", dimensions, height); } return GL_TRUE; } } /* For cube map, width must equal height */ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { if (width != height) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage2D(width != height)"); } return GL_TRUE; } } /* Depth */ if (dimensions >= 3) { if (depth < 2 * border || depth > 2 + maxTextureSize || logbase2( depth - 2 * border ) < 0) { if (!isProxy) { _mesa_error( ctx, GL_INVALID_VALUE, "glTexImage3D(depth=%d)", depth ); } return GL_TRUE; } } /* Level */ if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_PROXY_TEXTURE_RECTANGLE_NV) { if (level != 0) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage2D(level=%d)", level); } return GL_TRUE; } } else if (level < 0 || level >= maxLevels) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage%dD(level=%d)", dimensions, level); } return GL_TRUE; } /* For cube map, width must equal height */ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { if (width != height) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage2D(width != height)"); return GL_TRUE; } } if (_mesa_base_tex_format(ctx, internalFormat) < 0) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexImage%dD(internalFormat=0x%x)", dimensions, internalFormat); } return GL_TRUE; } if (!_mesa_is_legal_format_and_type(format, type)) { /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4. */ if (!isProxy) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexImage%dD(format or type)", dimensions); } return GL_TRUE; } if (format == GL_YCBCR_MESA || internalFormat == GL_YCBCR_MESA) { ASSERT(ctx->Extensions.MESA_ycbcr_texture); if (format != GL_YCBCR_MESA || internalFormat != GL_YCBCR_MESA || (type != GL_UNSIGNED_SHORT_8_8_MESA && type != GL_UNSIGNED_SHORT_8_8_REV_MESA)) { char message[100]; sprintf(message, "glTexImage%d(format/type/internalFormat YCBCR mismatch", dimensions); _mesa_error(ctx, GL_INVALID_ENUM, message); return GL_TRUE; /* error */ } } if (is_compressed_format(internalFormat)) { if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) { /* OK */ } else if (ctx->Extensions.ARB_texture_cube_map && (target == GL_PROXY_TEXTURE_CUBE_MAP || (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) { /* OK */ } else { if (!isProxy) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%d(target)", dimensions); return GL_TRUE; } } if (border != 0) { if (!isProxy) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexImage%D(border!=0)", dimensions); } return GL_TRUE; } } /* if we get here, the parameters are OK */ return GL_FALSE; } /* * Test glTexSubImage[123]D() parameters for errors. * Input: * dimensions - must be 1 or 2 or 3 * Return: GL_TRUE = an error was detected, GL_FALSE = no errors */ static GLboolean subtexture_error_check( GLcontext *ctx, GLuint dimensions, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint width, GLint height, GLint depth, GLenum format, GLenum type ) { struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; struct gl_texture_image *destTex; GLint maxLevels = 0; if (dimensions == 1) { if (target != GL_TEXTURE_1D) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" ); return GL_TRUE; } maxLevels = ctx->Const.MaxTextureLevels; } else if (dimensions == 2) { if (ctx->Extensions.ARB_texture_cube_map) { if ((target < GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB || target > GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) && target != GL_TEXTURE_2D) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" ); return GL_TRUE; } } else if (target != GL_TEXTURE_2D) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" ); return GL_TRUE; } if (target == GL_PROXY_TEXTURE_2D && target == GL_TEXTURE_2D) maxLevels = ctx->Const.MaxTextureLevels; else maxLevels = ctx->Const.MaxCubeTextureLevels; } else if (dimensions == 3) { if (target != GL_TEXTURE_3D) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" ); return GL_TRUE; } maxLevels = ctx->Const.Max3DTextureLevels; } else { _mesa_problem( ctx, "bad dims in texture_error_check" ); return GL_TRUE; } ASSERT(maxLevels > 0); if (level < 0 || level >= maxLevels) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); return GL_TRUE; } if (width < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(width=%d)", dimensions, width); return GL_TRUE; } if (height < 0 && dimensions > 1) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(height=%d)", dimensions, height); return GL_TRUE; } if (depth < 0 && dimensions > 2) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(depth=%d)", dimensions, depth); return GL_TRUE; } destTex = _mesa_select_tex_image(ctx, texUnit, target, level); if (!destTex) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage2D"); return GL_TRUE; } if (xoffset < -((GLint)destTex->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset)"); return GL_TRUE; } if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset+width)"); return GL_TRUE; } if (dimensions > 1) { if (yoffset < -((GLint)destTex->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset)"); return GL_TRUE; } if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset+height)"); return GL_TRUE; } } if (dimensions > 2) { if (zoffset < -((GLint)destTex->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); return GL_TRUE; } if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); return GL_TRUE; } } if (!_mesa_is_legal_format_and_type(format, type)) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%dD(format or type)", dimensions); return GL_TRUE; } if (destTex->IsCompressed) { const struct gl_texture_unit *texUnit; const struct gl_texture_object *texObj; const struct gl_texture_image *texImage; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) { /* OK */ } else if (ctx->Extensions.ARB_texture_cube_map && (target == GL_PROXY_TEXTURE_CUBE_MAP || (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) { /* OK */ } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%D(target)", dimensions); return GL_TRUE; } /* offset must be multiple of 4 */ if ((xoffset & 3) || (yoffset & 3)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%D(xoffset or yoffset)", dimensions); return GL_TRUE; } /* size must be multiple of 4 or equal to whole texture size */ if ((width & 3) && width != texImage->Width) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%D(width)", dimensions); return GL_TRUE; } if ((height & 3) && height != texImage->Height) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%D(width)", dimensions); return GL_TRUE; } } return GL_FALSE; } /* * Test glCopyTexImage[12]D() parameters for errors. * Input: dimensions - must be 1 or 2 or 3 * Return: GL_TRUE = an error was detected, GL_FALSE = no errors */ static GLboolean copytexture_error_check( GLcontext *ctx, GLuint dimensions, GLenum target, GLint level, GLint internalFormat, GLint width, GLint height, GLint border ) { GLint maxLevels = 0, maxTextureSize; if (dimensions == 1) { if (target != GL_TEXTURE_1D) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" ); return GL_TRUE; } maxLevels = ctx->Const.MaxTextureLevels; } else if (dimensions == 2) { if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { if (!ctx->Extensions.ARB_texture_cube_map) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" ); return GL_TRUE; } } else if (target == GL_TEXTURE_RECTANGLE_NV) { if (!ctx->Extensions.NV_texture_rectangle) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" ); return GL_TRUE; } } else if (target != GL_TEXTURE_2D) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" ); return GL_TRUE; } if (target == GL_TEXTURE_2D) maxLevels = ctx->Const.MaxTextureLevels; else if (target == GL_TEXTURE_RECTANGLE_NV) maxLevels = 1; else maxLevels = ctx->Const.MaxCubeTextureLevels; } ASSERT(maxLevels > 0); maxTextureSize = 1 << (maxLevels - 1); /* Border */ if (border != 0 && border != 1) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexImage%dD(border)", dimensions); return GL_TRUE; } /* Width */ if (width < 2 * border || width > 2 + maxTextureSize || logbase2( width - 2 * border ) < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexImage%dD(width=%d)", dimensions, width); return GL_TRUE; } /* Height */ if (dimensions >= 2) { if (height < 2 * border || height > 2 + maxTextureSize || logbase2( height - 2 * border ) < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexImage%dD(height=%d)", dimensions, height); return GL_TRUE; } } /* For cube map, width must equal height */ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { if (width != height) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexImage2D(width != height)"); return GL_TRUE; } } /* Level */ if (level < 0 || level >= maxLevels) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexImage%dD(level=%d)", dimensions, level); return GL_TRUE; } if (_mesa_base_tex_format(ctx, internalFormat) < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexImage%dD(internalFormat)", dimensions); return GL_TRUE; } if (is_compressed_format(internalFormat)) { if (target != GL_TEXTURE_2D) { _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%d(target)", dimensions); return GL_TRUE; } if (border != 0) { _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexImage%D(border!=0)", dimensions); return GL_TRUE; } } /* if we get here, the parameters are OK */ return GL_FALSE; } static GLboolean copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height ) { struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; struct gl_texture_image *teximage; GLint maxLevels = 0; if (dimensions == 1) { if (target != GL_TEXTURE_1D) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" ); return GL_TRUE; } maxLevels = ctx->Const.MaxTextureLevels; } else if (dimensions == 2) { if (ctx->Extensions.ARB_texture_cube_map) { if ((target < GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB || target > GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) && target != GL_TEXTURE_2D) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" ); return GL_TRUE; } } else if (target != GL_TEXTURE_2D) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" ); return GL_TRUE; } if (target == GL_PROXY_TEXTURE_2D && target == GL_TEXTURE_2D) maxLevels = ctx->Const.MaxTextureLevels; else maxLevels = ctx->Const.MaxCubeTextureLevels; } else if (dimensions == 3) { if (target != GL_TEXTURE_3D) { _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" ); return GL_TRUE; } maxLevels = ctx->Const.Max3DTextureLevels; } ASSERT(maxLevels > 0); if (level < 0 || level >= maxLevels) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(level=%d)", dimensions, level); return GL_TRUE; } if (width < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(width=%d)", dimensions, width); return GL_TRUE; } if (dimensions > 1 && height < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(height=%d)", dimensions, height); return GL_TRUE; } teximage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!teximage) { _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage%dD(undefined texture level: %d)", dimensions, level); return GL_TRUE; } if (xoffset < -((GLint)teximage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); return GL_TRUE; } if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(xoffset+width)", dimensions); return GL_TRUE; } if (dimensions > 1) { if (yoffset < -((GLint)teximage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); return GL_TRUE; } /* NOTE: we're adding the border here, not subtracting! */ if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(yoffset+height)", dimensions); return GL_TRUE; } } if (dimensions > 2) { if (zoffset < -((GLint)teximage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(zoffset)", dimensions); return GL_TRUE; } if (zoffset > (GLint) (teximage->Depth + teximage->Border)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%dD(zoffset+depth)", dimensions); return GL_TRUE; } } if (teximage->IsCompressed) { if (target != GL_TEXTURE_2D) { _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%d(target)", dimensions); return GL_TRUE; } /* offset must be multiple of 4 */ if ((xoffset & 3) || (yoffset & 3)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%D(xoffset or yoffset)", dimensions); return GL_TRUE; } /* size must be multiple of 4 */ if ((width & 3) != 0 && width != teximage->Width) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%D(width)", dimensions); return GL_TRUE; } if ((height & 3) != 0 && height != teximage->Height) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyTexSubImage%D(height)", dimensions); return GL_TRUE; } } /* if we get here, the parameters are OK */ return GL_FALSE; } void _mesa_GetTexImage( GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels ) { const struct gl_texture_unit *texUnit; const struct gl_texture_object *texObj; const struct gl_texture_image *texImage; GLint maxLevels = 0; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]); texObj = _mesa_select_tex_object(ctx, texUnit, target); if (!texObj || is_proxy_target(target)) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)"); return; } if (target == GL_TEXTURE_1D || target == GL_TEXTURE_2D) { maxLevels = ctx->Const.MaxTextureLevels; } else if (target == GL_TEXTURE_3D) { maxLevels = ctx->Const.Max3DTextureLevels; } else if (target == GL_TEXTURE_RECTANGLE_NV) { maxLevels = 1; } else { maxLevels = ctx->Const.MaxCubeTextureLevels; } ASSERT(maxLevels > 0); if (level < 0 || level >= maxLevels) { _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" ); return; } if (_mesa_sizeof_packed_type(type) <= 0) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" ); return; } if (_mesa_components_in_format(format) <= 0 || format == GL_STENCIL_INDEX) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" ); return; } if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); } if (!ctx->Extensions.SGIX_depth_texture && format == GL_DEPTH_COMPONENT) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); } if (!ctx->Extensions.MESA_ycbcr_texture && format == GL_YCBCR_MESA) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); } /* XXX what if format/type doesn't match texture format/type? */ if (!pixels) return; texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { /* invalid mipmap level, not an error */ return; } if (!texImage->Data) { /* no image data, not an error */ return; } { const GLint width = texImage->Width; const GLint height = texImage->Height; const GLint depth = texImage->Depth; GLint img, row; for (img = 0; img < depth; img++) { for (row = 0; row < height; row++) { /* compute destination address in client memory */ GLvoid *dest = _mesa_image_address( &ctx->Pack, pixels, width, height, format, type, img, row, 0); assert(dest); if (format == GL_COLOR_INDEX) { GLuint indexRow[MAX_WIDTH]; GLint col; for (col = 0; col < width; col++) { (*texImage->FetchTexel)(texImage, col, row, img, (GLvoid *) &indexRow[col]); } _mesa_pack_index_span(ctx, width, type, dest, indexRow, &ctx->Pack, 0 /* no image transfer */); } else if (format == GL_DEPTH_COMPONENT) { GLfloat depthRow[MAX_WIDTH]; GLint col; for (col = 0; col < width; col++) { (*texImage->FetchTexel)(texImage, col, row, img, (GLvoid *) &depthRow[col]); } _mesa_pack_depth_span(ctx, width, dest, type, depthRow, &ctx->Pack); } else if (format == GL_YCBCR_MESA) { /* No pixel transfer */ const GLint rowstride = texImage->RowStride; MEMCPY(dest, (const GLushort *) texImage->Data + row * rowstride, width * sizeof(GLushort)); /* check for byte swapping */ if ((texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR && type == GL_UNSIGNED_SHORT_8_8_REV_MESA) || (texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV && type == GL_UNSIGNED_SHORT_8_8_MESA)) { if (!ctx->Pack.SwapBytes) _mesa_swap2((GLushort *) dest, width); } else if (ctx->Pack.SwapBytes) { _mesa_swap2((GLushort *) dest, width); } } else { /* general case: convert row to RGBA format */ GLchan rgba[MAX_WIDTH][4]; GLint col; for (col = 0; col < width; col++) { (*texImage->FetchTexel)(texImage, col, row, img, (GLvoid *) rgba[col]); } _mesa_pack_rgba_span(ctx, width, (const GLchan (*)[4])rgba, format, type, dest, &ctx->Pack, 0 /* no image transfer */); } /* format */ } /* row */ } /* img */ } } /* * Called from the API. Note that width includes the border. */ void _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels ) { GLsizei postConvWidth = width; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (is_color_format(internalFormat)) { _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL); } if (target == GL_TEXTURE_1D) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; if (texture_error_check(ctx, target, level, internalFormat, format, type, 1, postConvWidth, 1, 1, border)) { return; /* error was recorded */ } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); texObj->Image[level] = texImage; if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); return; } } else if (texImage->Data) { /* free the old texture data */ MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } clear_teximage_fields(texImage); /* not really needed, but helpful */ _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1, border, internalFormat); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); ASSERT(ctx->Driver.TexImage1D); /* Give the texture to the driver! may be null! */ (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat, width, border, format, type, pixels, &ctx->Unpack, texObj, texImage); ASSERT(texImage->TexFormat); if (!texImage->FetchTexel) { /* If driver didn't explicitly set this, use the default */ texImage->FetchTexel = texImage->TexFormat->FetchTexel1D; } ASSERT(texImage->FetchTexel); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } else if (target == GL_PROXY_TEXTURE_1D) { /* Proxy texture: check for errors and update proxy state */ GLboolean error = texture_error_check(ctx, target, level, internalFormat, format, type, 1, postConvWidth, 1, 1, border); if (!error) { ASSERT(ctx->Driver.TestProxyTexImage); error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level, internalFormat, format, type, postConvWidth, 1, 1, border); } if (error) { /* if error, clear all proxy texture image parameters */ if (level >= 0 && level < ctx->Const.MaxTextureLevels) { clear_teximage_fields(ctx->Texture.Proxy1D->Image[level]); } } else { /* no error, set the tex image parameters */ struct gl_texture_unit *texUnit; struct gl_texture_image *texImage; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texImage = _mesa_select_tex_image(ctx, texUnit, target, level); _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1, border, internalFormat); } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" ); return; } } void _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels ) { GLsizei postConvWidth = width, postConvHeight = height; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (is_color_format(internalFormat)) { _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight); } if (target == GL_TEXTURE_2D || (ctx->Extensions.ARB_texture_cube_map && target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) || (ctx->Extensions.NV_texture_rectangle && target == GL_TEXTURE_RECTANGLE_NV)) { /* non-proxy target */ struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; if (texture_error_check(ctx, target, level, internalFormat, format, type, 2, postConvWidth, postConvHeight, 1, border)) { return; /* error was recorded */ } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); _mesa_set_tex_image(texObj, target, level, texImage); if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); return; } } else if (texImage->Data) { /* free the old texture data */ MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } clear_teximage_fields(texImage); /* not really needed, but helpful */ _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, postConvHeight, 1, border, internalFormat); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); ASSERT(ctx->Driver.TexImage2D); /* Give the texture to the driver! may be null! */ (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat, width, height, border, format, type, pixels, &ctx->Unpack, texObj, texImage); ASSERT(texImage->TexFormat); if (!texImage->FetchTexel) { /* If driver didn't explicitly set this, use the default */ texImage->FetchTexel = texImage->TexFormat->FetchTexel2D; } ASSERT(texImage->FetchTexel); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } else if (target == GL_PROXY_TEXTURE_2D || (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB && ctx->Extensions.ARB_texture_cube_map) || (target == GL_PROXY_TEXTURE_RECTANGLE_NV && ctx->Extensions.NV_texture_rectangle)) { /* Proxy texture: check for errors and update proxy state */ GLboolean error = texture_error_check(ctx, target, level, internalFormat, format, type, 2, postConvWidth, postConvHeight, 1, border); if (!error) { ASSERT(ctx->Driver.TestProxyTexImage); error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level, internalFormat, format, type, postConvWidth, postConvHeight, 1, border); } if (error) { /* if error, clear all proxy texture image parameters */ const GLint maxLevels = (target == GL_PROXY_TEXTURE_2D) ? ctx->Const.MaxTextureLevels : ctx->Const.MaxCubeTextureLevels; if (level >= 0 && level < maxLevels) { clear_teximage_fields(ctx->Texture.Proxy2D->Image[level]); } } else { /* no error, set the tex image parameters */ struct gl_texture_unit *texUnit; struct gl_texture_image *texImage; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texImage = _mesa_select_tex_image(ctx, texUnit, target, level); _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, postConvHeight, 1, border, internalFormat); } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" ); return; } } /* * Called by the API or display list executor. * Note that width and height include the border. */ void _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels ) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (target == GL_TEXTURE_3D) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; if (texture_error_check(ctx, target, level, (GLint) internalFormat, format, type, 3, width, height, depth, border)) { return; /* error was recorded */ } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); texObj->Image[level] = texImage; if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); return; } } else if (texImage->Data) { MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } clear_teximage_fields(texImage); /* not really needed, but helpful */ _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth, border, internalFormat); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); ASSERT(ctx->Driver.TexImage3D); /* Give the texture to the driver! may be null! */ (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat, width, height, depth, border, format, type, pixels, &ctx->Unpack, texObj, texImage); ASSERT(texImage->TexFormat); if (!texImage->FetchTexel) { /* If driver didn't explicitly set this, use the default */ texImage->FetchTexel = texImage->TexFormat->FetchTexel3D; } ASSERT(texImage->FetchTexel); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } else if (target == GL_PROXY_TEXTURE_3D) { /* Proxy texture: check for errors and update proxy state */ GLboolean error = texture_error_check(ctx, target, level, internalFormat, format, type, 3, width, height, depth, border); if (!error) { ASSERT(ctx->Driver.TestProxyTexImage); error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level, internalFormat, format, type, width, height, depth, border); } if (error) { /* if error, clear all proxy texture image parameters */ if (level >= 0 && level < ctx->Const.Max3DTextureLevels) { clear_teximage_fields(ctx->Texture.Proxy3D->Image[level]); } } else { /* no error, set the tex image parameters */ struct gl_texture_unit *texUnit; struct gl_texture_image *texImage; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texImage = _mesa_select_tex_image(ctx, texUnit, target, level); _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1, border, internalFormat); } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" ); return; } } void _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels ) { _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, depth, border, format, type, pixels); } void _mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels ) { GLsizei postConvWidth = width; struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); /* XXX should test internal format */ if (is_color_format(format)) { _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL); } if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0, postConvWidth, 1, 1, format, type)) { return; /* error was detected */ } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); assert(texImage); if (width == 0 || !pixels) return; /* no-op, not an error */ /* If we have a border, xoffset=-1 is legal. Bias by border width */ xoffset += texImage->Border; ASSERT(ctx->Driver.TexSubImage1D); (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width, format, type, pixels, &ctx->Unpack, texObj, texImage); ctx->NewState |= _NEW_TEXTURE; } void _mesa_TexSubImage2D( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels ) { GLsizei postConvWidth = width, postConvHeight = height; struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); /* XXX should test internal format */ if (is_color_format(format)) { _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight); } if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0, postConvWidth, postConvHeight, 1, format, type)) { return; /* error was detected */ } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); assert(texImage); if (width == 0 || height == 0 || !pixels) return; /* no-op, not an error */ /* If we have a border, xoffset=-1 is legal. Bias by border width */ xoffset += texImage->Border; yoffset += texImage->Border; ASSERT(ctx->Driver.TexSubImage2D); (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset, width, height, format, type, pixels, &ctx->Unpack, texObj, texImage); ctx->NewState |= _NEW_TEXTURE; } void _mesa_TexSubImage3D( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels ) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset, width, height, depth, format, type)) { return; /* error was detected */ } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); assert(texImage); if (width == 0 || height == 0 || height == 0 || !pixels) return; /* no-op, not an error */ /* If we have a border, xoffset=-1 is legal. Bias by border width */ xoffset += texImage->Border; yoffset += texImage->Border; zoffset += texImage->Border; ASSERT(ctx->Driver.TexSubImage3D); (*ctx->Driver.TexSubImage3D)(ctx, target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels, &ctx->Unpack, texObj, texImage ); ctx->NewState |= _NEW_TEXTURE; } void _mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLint border ) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLsizei postConvWidth = width; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); if (is_color_format(internalFormat)) { _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL); } if (copytexture_error_check(ctx, 1, target, level, internalFormat, postConvWidth, 1, border)) return; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); _mesa_set_tex_image(texObj, target, level, texImage); if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D"); return; } } else if (texImage->Data) { /* free the old texture data */ MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } clear_teximage_fields(texImage); /* not really needed, but helpful */ _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1, border, internalFormat); ASSERT(ctx->Driver.CopyTexImage1D); (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat, x, y, width, border); ASSERT(texImage->TexFormat); if (!texImage->FetchTexel) { /* If driver didn't explicitly set this, use the default */ texImage->FetchTexel = texImage->TexFormat->FetchTexel1D; } ASSERT(texImage->FetchTexel); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } void _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLsizei postConvWidth = width, postConvHeight = height; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); if (is_color_format(internalFormat)) { _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight); } if (copytexture_error_check(ctx, 2, target, level, internalFormat, postConvWidth, postConvHeight, border)) return; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); _mesa_set_tex_image(texObj, target, level, texImage); if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D"); return; } } else if (texImage->Data) { /* free the old texture data */ MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } clear_teximage_fields(texImage); /* not really needed, but helpful */ _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, postConvHeight, 1, border, internalFormat); ASSERT(ctx->Driver.CopyTexImage2D); (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat, x, y, width, height, border); ASSERT(texImage->TexFormat); if (!texImage->FetchTexel) { /* If driver didn't explicitly set this, use the default */ texImage->FetchTexel = texImage->TexFormat->FetchTexel2D; } ASSERT(texImage->FetchTexel); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } void _mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width ) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLsizei postConvWidth = width; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); /* XXX should test internal format */ _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL); if (copytexsubimage_error_check(ctx, 1, target, level, xoffset, 0, 0, postConvWidth, 1)) return; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); /* If we have a border, xoffset=-1 is legal. Bias by border width */ xoffset += texImage->Border; ASSERT(ctx->Driver.CopyTexSubImage1D); (*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, xoffset, x, y, width); ctx->NewState |= _NEW_TEXTURE; } void _mesa_CopyTexSubImage2D( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height ) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLsizei postConvWidth = width, postConvHeight = height; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); /* XXX should test internal format */ _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight); if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0, postConvWidth, postConvHeight)) return; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); /* If we have a border, xoffset=-1 is legal. Bias by border width */ xoffset += texImage->Border; yoffset += texImage->Border; ASSERT(ctx->Driver.CopyTexSubImage2D); (*ctx->Driver.CopyTexSubImage2D)(ctx, target, level, xoffset, yoffset, x, y, width, height); ctx->NewState |= _NEW_TEXTURE; } void _mesa_CopyTexSubImage3D( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height ) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLsizei postConvWidth = width, postConvHeight = height; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE) _mesa_update_state(ctx); /* XXX should test internal format */ _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight); if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset, postConvWidth, postConvHeight)) return; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); /* If we have a border, xoffset=-1 is legal. Bias by border width */ xoffset += texImage->Border; yoffset += texImage->Border; zoffset += texImage->Border; ASSERT(ctx->Driver.CopyTexSubImage3D); (*ctx->Driver.CopyTexSubImage3D)(ctx, target, level, xoffset, yoffset, zoffset, x, y, width, height); ctx->NewState |= _NEW_TEXTURE; } /**********************************************************************/ /****** Compressed Textures ******/ /**********************************************************************/ /** * Error checking for glCompressedTexImage[123]D(). * \return error code or GL_NO_ERROR. */ static GLenum compressed_texture_error_check(GLcontext *ctx, GLint dimensions, GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize) { GLboolean isProxy = GL_FALSE; GLint expectedSize, maxLevels = 0, maxTextureSize; if (dimensions == 1) { /* 1D compressed textures not allowed */ return GL_INVALID_ENUM; } else if (dimensions == 2) { if (target == GL_PROXY_TEXTURE_2D) { maxLevels = ctx->Const.MaxTextureLevels; isProxy = GL_TRUE; } else if (target == GL_TEXTURE_2D) { maxLevels = ctx->Const.MaxTextureLevels; } else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { if (!ctx->Extensions.ARB_texture_cube_map) return GL_INVALID_ENUM; /*target*/ maxLevels = ctx->Const.MaxCubeTextureLevels; isProxy = GL_TRUE; } else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { if (!ctx->Extensions.ARB_texture_cube_map) return GL_INVALID_ENUM; /*target*/ maxLevels = ctx->Const.MaxCubeTextureLevels; } else { return GL_INVALID_ENUM; /*target*/ } } else if (dimensions == 3) { /* 3D compressed textures not allowed */ return GL_INVALID_ENUM; } maxTextureSize = 1 << (maxLevels - 1); if (!is_compressed_format(internalFormat)) return GL_INVALID_ENUM; if (border != 0) return GL_INVALID_VALUE; if (width < 1 || width > maxTextureSize || logbase2(width) < 0) return GL_INVALID_VALUE; if ((height < 1 || height > maxTextureSize || logbase2(height) < 0) && dimensions > 1) return GL_INVALID_VALUE; if ((depth < 1 || depth > maxTextureSize || logbase2(depth) < 0) && dimensions > 2) return GL_INVALID_VALUE; /* For cube map, width must equal height */ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height) return GL_INVALID_VALUE; if (level < 0 || level >= maxLevels) return GL_INVALID_VALUE; expectedSize = _mesa_compressed_texture_size(ctx, width, height, depth, internalFormat); if (expectedSize != imageSize) return GL_INVALID_VALUE; return GL_NO_ERROR; } /** * Error checking for glCompressedTexSubImage[123]D(). * \return error code or GL_NO_ERROR. */ static GLenum compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize) { GLboolean isProxy = GL_FALSE; GLint expectedSize, maxLevels = 0, maxTextureSize; if (dimensions == 1) { /* 1D compressed textures not allowed */ return GL_INVALID_ENUM; } else if (dimensions == 2) { if (target == GL_PROXY_TEXTURE_2D) { maxLevels = ctx->Const.MaxTextureLevels; isProxy = GL_TRUE; } else if (target == GL_TEXTURE_2D) { maxLevels = ctx->Const.MaxTextureLevels; } else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { if (!ctx->Extensions.ARB_texture_cube_map) return GL_INVALID_ENUM; /*target*/ maxLevels = ctx->Const.MaxCubeTextureLevels; isProxy = GL_TRUE; } else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { if (!ctx->Extensions.ARB_texture_cube_map) return GL_INVALID_ENUM; /*target*/ maxLevels = ctx->Const.MaxCubeTextureLevels; } else { return GL_INVALID_ENUM; /*target*/ } } else if (dimensions == 3) { /* 3D compressed textures not allowed */ return GL_INVALID_ENUM; } maxTextureSize = 1 << (maxLevels - 1); if (!is_compressed_format(format)) return GL_INVALID_ENUM; if (width < 1 || width > maxTextureSize || logbase2(width) < 0) return GL_INVALID_VALUE; if ((height < 1 || height > maxTextureSize || logbase2(height) < 0) && dimensions > 1) return GL_INVALID_VALUE; if (level < 0 || level >= maxLevels) return GL_INVALID_VALUE; if ((xoffset & 3) != 0 || (yoffset & 3) != 0) return GL_INVALID_VALUE; if ((width & 3) != 0 && width != 2 && width != 1) return GL_INVALID_VALUE; if ((height & 3) != 0 && height != 2 && height != 1) return GL_INVALID_VALUE; expectedSize = _mesa_compressed_texture_size(ctx, width, height, depth, format); if (expectedSize != imageSize) return GL_INVALID_VALUE; return GL_NO_ERROR; } void _mesa_CompressedTexImage1DARB(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLint border, GLsizei imageSize, const GLvoid *data) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (target == GL_TEXTURE_1D) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLenum error = compressed_texture_error_check(ctx, 1, target, level, internalFormat, width, 1, 1, border, imageSize); if (error) { _mesa_error(ctx, error, "glCompressedTexImage1D"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); texObj->Image[level] = texImage; if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D"); return; } } else if (texImage->Data) { MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1, border, internalFormat); ASSERT(ctx->Driver.CompressedTexImage1D); (*ctx->Driver.CompressedTexImage1D)(ctx, target, level, internalFormat, width, border, imageSize, data, texObj, texImage); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } else if (target == GL_PROXY_TEXTURE_1D) { /* Proxy texture: check for errors and update proxy state */ GLenum error = compressed_texture_error_check(ctx, 1, target, level, internalFormat, width, 1, 1, border, imageSize); if (!error) { ASSERT(ctx->Driver.TestProxyTexImage); error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level, internalFormat, GL_NONE, GL_NONE, width, 1, 1, border); } if (error) { /* if error, clear all proxy texture image parameters */ if (level >= 0 && level < ctx->Const.MaxTextureLevels) { clear_teximage_fields(ctx->Texture.Proxy1D->Image[level]); } } else { /* store the teximage parameters */ struct gl_texture_unit *texUnit; struct gl_texture_image *texImage; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texImage = _mesa_select_tex_image(ctx, texUnit, target, level); _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1, border, internalFormat); } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)"); return; } } void _mesa_CompressedTexImage2DARB(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (target == GL_TEXTURE_2D || (ctx->Extensions.ARB_texture_cube_map && target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLenum error = compressed_texture_error_check(ctx, 2, target, level, internalFormat, width, height, 1, border, imageSize); if (error) { _mesa_error(ctx, error, "glCompressedTexImage2D"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); texObj->Image[level] = texImage; if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D"); return; } } else if (texImage->Data) { MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1, border, internalFormat); ASSERT(ctx->Driver.CompressedTexImage2D); (*ctx->Driver.CompressedTexImage2D)(ctx, target, level, internalFormat, width, height, border, imageSize, data, texObj, texImage); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } else if (target == GL_PROXY_TEXTURE_2D || (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB && ctx->Extensions.ARB_texture_cube_map)) { /* Proxy texture: check for errors and update proxy state */ GLenum error = compressed_texture_error_check(ctx, 2, target, level, internalFormat, width, height, 1, border, imageSize); if (!error) { ASSERT(ctx->Driver.TestProxyTexImage); error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level, internalFormat, GL_NONE, GL_NONE, width, height, 1, border); } if (error) { /* if error, clear all proxy texture image parameters */ const GLint maxLevels = (target == GL_PROXY_TEXTURE_2D) ? ctx->Const.MaxTextureLevels : ctx->Const.MaxCubeTextureLevels; if (level >= 0 && level < maxLevels) { clear_teximage_fields(ctx->Texture.Proxy2D->Image[level]); } } else { /* store the teximage parameters */ struct gl_texture_unit *texUnit; struct gl_texture_image *texImage; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texImage = _mesa_select_tex_image(ctx, texUnit, target, level); _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1, border, internalFormat); } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)"); return; } } void _mesa_CompressedTexImage3DARB(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const GLvoid *data) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (target == GL_TEXTURE_3D) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLenum error = compressed_texture_error_check(ctx, 3, target, level, internalFormat, width, height, depth, border, imageSize); if (error) { _mesa_error(ctx, error, "glCompressedTexImage3D"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { texImage = _mesa_alloc_texture_image(); texObj->Image[level] = texImage; if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D"); return; } } else if (texImage->Data) { MESA_PBUFFER_FREE(texImage->Data); texImage->Data = NULL; } _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth, border, internalFormat); ASSERT(ctx->Driver.CompressedTexImage3D); (*ctx->Driver.CompressedTexImage3D)(ctx, target, level, internalFormat, width, height, depth, border, imageSize, data, texObj, texImage); /* state update */ texObj->Complete = GL_FALSE; ctx->NewState |= _NEW_TEXTURE; } else if (target == GL_PROXY_TEXTURE_3D) { /* Proxy texture: check for errors and update proxy state */ GLenum error = compressed_texture_error_check(ctx, 3, target, level, internalFormat, width, height, depth, border, imageSize); if (!error) { ASSERT(ctx->Driver.TestProxyTexImage); error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level, internalFormat, GL_NONE, GL_NONE, width, height, depth, border); } if (error) { /* if error, clear all proxy texture image parameters */ if (level >= 0 && level < ctx->Const.Max3DTextureLevels) { clear_teximage_fields(ctx->Texture.Proxy3D->Image[level]); } } else { /* store the teximage parameters */ struct gl_texture_unit *texUnit; struct gl_texture_image *texImage; texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texImage = _mesa_select_tex_image(ctx, texUnit, target, level); _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth, border, internalFormat); } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)"); return; } } void _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const GLvoid *data) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLenum error; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); error = compressed_subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, format, imageSize); if (error) { _mesa_error(ctx, error, "glCompressedTexSubImage1D"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); assert(texImage); if (format != texImage->IntFormat) { _mesa_error(ctx, GL_INVALID_OPERATION, "glCompressedTexSubImage1D(format)"); return; } if ((width == 1 || width == 2) && width != texImage->Width) { _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)"); return; } if (width == 0 || !data) return; /* no-op, not an error */ if (ctx->Driver.CompressedTexSubImage1D) { (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level, xoffset, width, format, imageSize, data, texObj, texImage); } ctx->NewState |= _NEW_TEXTURE; } void _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const GLvoid *data) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLenum error; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); error = compressed_subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0, width, height, 1, format, imageSize); if (error) { _mesa_error(ctx, error, "glCompressedTexSubImage2D"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); assert(texImage); if (format != texImage->IntFormat) { _mesa_error(ctx, GL_INVALID_OPERATION, "glCompressedTexSubImage2D(format)"); return; } if (((width == 1 || width == 2) && width != texImage->Width) || ((height == 1 || height == 2) && height != texImage->Height)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)"); return; } if (width == 0 || height == 0 || !data) return; /* no-op, not an error */ if (ctx->Driver.CompressedTexSubImage2D) { (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level, xoffset, yoffset, width, height, format, imageSize, data, texObj, texImage); } ctx->NewState |= _NEW_TEXTURE; } void _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const GLvoid *data) { struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLenum error; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); error = compressed_subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize); if (error) { _mesa_error(ctx, error, "glCompressedTexSubImage2D"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_select_tex_image(ctx, texUnit, target, level); assert(texImage); if (format != texImage->IntFormat) { _mesa_error(ctx, GL_INVALID_OPERATION, "glCompressedTexSubImage3D(format)"); return; } if (((width == 1 || width == 2) && width != texImage->Width) || ((height == 1 || height == 2) && height != texImage->Height) || ((depth == 1 || depth == 2) && depth != texImage->Depth)) { _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)"); return; } if (width == 0 || height == 0 || depth == 0 || !data) return; /* no-op, not an error */ if (ctx->Driver.CompressedTexSubImage3D) { (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data, texObj, texImage); } ctx->NewState |= _NEW_TEXTURE; } void _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img) { const struct gl_texture_unit *texUnit; const struct gl_texture_object *texObj; struct gl_texture_image *texImage; GLint maxLevels; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; texObj = _mesa_select_tex_object(ctx, texUnit, target); if (!texObj) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB"); return; } if (target == GL_TEXTURE_1D || target == GL_TEXTURE_2D) { maxLevels = ctx->Const.MaxTextureLevels; } else if (target == GL_TEXTURE_3D) { maxLevels = ctx->Const.Max3DTextureLevels; } else { maxLevels = ctx->Const.MaxCubeTextureLevels; } ASSERT(maxLevels > 0); if (level < 0 || level >= maxLevels) { _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)"); return; } if (is_proxy_target(target)) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)"); return; } texImage = _mesa_select_tex_image(ctx, texUnit, target, level); if (!texImage) { /* probably invalid mipmap level */ _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)"); return; } if (!texImage->IsCompressed) { _mesa_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB"); return; } if (!img) return; /* just memcpy, no pixelstore or pixel transfer */ MEMCPY(img, texImage->Data, texImage->CompressedSize); }