/* * GLX Hardware Device Driver for Intel i810 * Copyright (C) 1999 Keith Whitwell * * 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 * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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. * */ #include "main/glheader.h" #include "main/mtypes.h" #include "main/imports.h" #include "main/simple_list.h" #include "main/enums.h" #include "main/texstore.h" #include "main/teximage.h" #include "main/texobj.h" #include "main/colormac.h" #include "main/mm.h" #include "texmem.h" #include "i810screen.h" #include "i810_dri.h" #include "i810context.h" #include "i810tex.h" #include "i810ioctl.h" /* * Compute the 'S2.4' lod bias factor from the floating point OpenGL bias. */ static GLuint i810ComputeLodBias(GLfloat bias) { int b = (int) (bias * 16.0) + 12; if (b > 63) b = 63; else if (b < -64) b = -64; return (GLuint) (b & MLC_LOD_BIAS_MASK); } static void i810SetTexWrapping(i810TextureObjectPtr tex, GLenum swrap, GLenum twrap) { tex->Setup[I810_TEXREG_MCS] &= ~(MCS_U_STATE_MASK| MCS_V_STATE_MASK); switch( swrap ) { case GL_REPEAT: tex->Setup[I810_TEXREG_MCS] |= MCS_U_WRAP; break; case GL_CLAMP: case GL_CLAMP_TO_EDGE: tex->Setup[I810_TEXREG_MCS] |= MCS_U_CLAMP; break; case GL_MIRRORED_REPEAT: tex->Setup[I810_TEXREG_MCS] |= MCS_U_MIRROR; break; default: _mesa_problem(NULL, "bad S wrap mode in %s", __FUNCTION__); } switch( twrap ) { case GL_REPEAT: tex->Setup[I810_TEXREG_MCS] |= MCS_V_WRAP; break; case GL_CLAMP: case GL_CLAMP_TO_EDGE: tex->Setup[I810_TEXREG_MCS] |= MCS_V_CLAMP; break; case GL_MIRRORED_REPEAT: tex->Setup[I810_TEXREG_MCS] |= MCS_V_MIRROR; break; default: _mesa_problem(NULL, "bad T wrap mode in %s", __FUNCTION__); } } static void i810SetTexFilter(i810ContextPtr imesa, i810TextureObjectPtr t, GLenum minf, GLenum magf, GLfloat bias) { t->Setup[I810_TEXREG_MF] &= ~(MF_MIN_MASK| MF_MAG_MASK| MF_MIP_MASK); t->Setup[I810_TEXREG_MLC] &= ~(MLC_LOD_BIAS_MASK); switch (minf) { case GL_NEAREST: t->Setup[I810_TEXREG_MF] |= MF_MIN_NEAREST | MF_MIP_NONE; break; case GL_LINEAR: t->Setup[I810_TEXREG_MF] |= MF_MIN_LINEAR | MF_MIP_NONE; break; case GL_NEAREST_MIPMAP_NEAREST: t->Setup[I810_TEXREG_MF] |= MF_MIN_NEAREST | MF_MIP_NEAREST; if (magf == GL_LINEAR) { /*bias -= 0.5;*/ /* this doesn't work too good */ } break; case GL_LINEAR_MIPMAP_NEAREST: t->Setup[I810_TEXREG_MF] |= MF_MIN_LINEAR | MF_MIP_NEAREST; break; case GL_NEAREST_MIPMAP_LINEAR: if (IS_I815(imesa)) t->Setup[I810_TEXREG_MF] |= MF_MIN_NEAREST | MF_MIP_LINEAR; else t->Setup[I810_TEXREG_MF] |= MF_MIN_NEAREST | MF_MIP_DITHER; /* if (magf == GL_LINEAR) { bias -= 0.5; } */ bias -= 0.5; /* always biasing here looks better */ break; case GL_LINEAR_MIPMAP_LINEAR: if (IS_I815(imesa)) t->Setup[I810_TEXREG_MF] |= MF_MIN_LINEAR | MF_MIP_LINEAR; else t->Setup[I810_TEXREG_MF] |= MF_MIN_LINEAR | MF_MIP_DITHER; break; default: return; } switch (magf) { case GL_NEAREST: t->Setup[I810_TEXREG_MF] |= MF_MAG_NEAREST; break; case GL_LINEAR: t->Setup[I810_TEXREG_MF] |= MF_MAG_LINEAR; break; default: return; } t->Setup[I810_TEXREG_MLC] |= i810ComputeLodBias(bias); } static void i810SetTexBorderColor( i810TextureObjectPtr t, const GLfloat color[4] ) { /* Need a fallback. */ } static i810TextureObjectPtr i810AllocTexObj( struct gl_context *ctx, struct gl_texture_object *texObj ) { i810TextureObjectPtr t; i810ContextPtr imesa = I810_CONTEXT(ctx); t = CALLOC_STRUCT( i810_texture_object_t ); texObj->DriverData = t; if ( t != NULL ) { GLfloat bias = ctx->Texture.Unit[ctx->Texture.CurrentUnit].LodBias; /* Initialize non-image-dependent parts of the state: */ t->base.tObj = texObj; t->Setup[I810_TEXREG_MI0] = GFX_OP_MAP_INFO; t->Setup[I810_TEXREG_MI1] = MI1_MAP_0; t->Setup[I810_TEXREG_MI2] = MI2_DIMENSIONS_ARE_LOG2; t->Setup[I810_TEXREG_MLC] = (GFX_OP_MAP_LOD_CTL | MLC_MAP_0 | /*MLC_DITHER_WEIGHT_FULL |*/ MLC_DITHER_WEIGHT_12 | MLC_UPDATE_LOD_BIAS | 0x0); t->Setup[I810_TEXREG_MCS] = (GFX_OP_MAP_COORD_SETS | MCS_COORD_0 | MCS_UPDATE_NORMALIZED | MCS_NORMALIZED_COORDS | MCS_UPDATE_V_STATE | MCS_V_WRAP | MCS_UPDATE_U_STATE | MCS_U_WRAP); t->Setup[I810_TEXREG_MF] = (GFX_OP_MAP_FILTER | MF_MAP_0 | MF_UPDATE_ANISOTROPIC | MF_UPDATE_MIP_FILTER | MF_UPDATE_MAG_FILTER | MF_UPDATE_MIN_FILTER); make_empty_list( & t->base ); i810SetTexWrapping( t, texObj->WrapS, texObj->WrapT ); /*i830SetTexMaxAnisotropy( t, texObj->MaxAnisotropy );*/ i810SetTexFilter( imesa, t, texObj->MinFilter, texObj->MagFilter, bias ); i810SetTexBorderColor( t, texObj->BorderColor.f ); } return t; } static void i810TexParameter( struct gl_context *ctx, GLenum target, struct gl_texture_object *tObj, GLenum pname, const GLfloat *params ) { i810ContextPtr imesa = I810_CONTEXT(ctx); i810TextureObjectPtr t = (i810TextureObjectPtr) tObj->DriverData; if (!t) return; if ( target != GL_TEXTURE_2D ) return; /* Can't do the update now as we don't know whether to flush * vertices or not. Setting imesa->new_state means that * i810UpdateTextureState() will be called before any triangles are * rendered. If a statechange has occurred, it will be detected at * that point, and buffered vertices flushed. */ switch (pname) { case GL_TEXTURE_MIN_FILTER: case GL_TEXTURE_MAG_FILTER: { GLfloat bias = ctx->Texture.Unit[ctx->Texture.CurrentUnit].LodBias; i810SetTexFilter( imesa, t, tObj->MinFilter, tObj->MagFilter, bias ); } break; case GL_TEXTURE_WRAP_S: case GL_TEXTURE_WRAP_T: i810SetTexWrapping( t, tObj->WrapS, tObj->WrapT ); break; case GL_TEXTURE_BORDER_COLOR: i810SetTexBorderColor( t, tObj->BorderColor.f ); break; case GL_TEXTURE_BASE_LEVEL: case GL_TEXTURE_MAX_LEVEL: case GL_TEXTURE_MIN_LOD: case GL_TEXTURE_MAX_LOD: /* This isn't the most efficient solution but there doesn't appear to * be a nice alternative for Radeon. Since there's no LOD clamping, * we just have to rely on loading the right subset of mipmap levels * to simulate a clamped LOD. */ I810_FIREVERTICES( I810_CONTEXT(ctx) ); driSwapOutTextureObject( (driTextureObject *) t ); break; default: return; } if (t == imesa->CurrentTexObj[0]) { I810_STATECHANGE( imesa, I810_UPLOAD_TEX0 ); } if (t == imesa->CurrentTexObj[1]) { I810_STATECHANGE( imesa, I810_UPLOAD_TEX1 ); } } /** * Setup hardware bits for new texture environment settings. * * \todo * Determine whether or not \c param can be used instead of * \c texUnit->EnvColor in the \c GL_TEXTURE_ENV_COLOR case. */ static void i810TexEnv( struct gl_context *ctx, GLenum target, GLenum pname, const GLfloat *param ) { i810ContextPtr imesa = I810_CONTEXT( ctx ); const GLuint unit = ctx->Texture.CurrentUnit; const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; /* Only one env color. Need a fallback if env colors are different * and texture setup references env color in both units. */ switch (pname) { case GL_TEXTURE_ENV_COLOR: { GLubyte c[4]; GLuint envColor; UNCLAMPED_FLOAT_TO_RGBA_CHAN( c, texUnit->EnvColor ); envColor = PACK_COLOR_8888( c[3], c[0], c[1], c[2] ); if (imesa->Setup[I810_CTXREG_CF1] != envColor) { I810_STATECHANGE(imesa, I810_UPLOAD_CTX); imesa->Setup[I810_CTXREG_CF1] = envColor; } break; } case GL_TEXTURE_ENV_MODE: imesa->TexEnvImageFmt[unit] = 0; /* force recalc of env state */ break; case GL_TEXTURE_LOD_BIAS: { if ( texUnit->_Current != NULL ) { const struct gl_texture_object *tObj = texUnit->_Current; i810TextureObjectPtr t = (i810TextureObjectPtr) tObj->DriverData; t->Setup[I810_TEXREG_MLC] &= ~(MLC_LOD_BIAS_MASK); t->Setup[I810_TEXREG_MLC] |= i810ComputeLodBias(*param); } break; } default: break; } } #if 0 static void i810TexImage1D( struct gl_context *ctx, GLenum target, GLint level, GLint internalFormat, GLint width, GLint border, GLenum format, GLenum type, const GLvoid *pixels, const struct gl_pixelstore_attrib *pack, struct gl_texture_object *texObj, struct gl_texture_image *texImage ) { i810TextureObjectPtr t = (i810TextureObjectPtr) texObj->DriverData; if (t) { i810SwapOutTexObj( imesa, t ); } } static void i810TexSubImage1D( struct gl_context *ctx, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels, const struct gl_pixelstore_attrib *pack, struct gl_texture_object *texObj, struct gl_texture_image *texImage ) { } #endif static void i810TexImage2D( struct gl_context *ctx, GLenum target, GLint level, GLint internalFormat, GLint width, GLint height, GLint border, GLenum format, GLenum type, const GLvoid *pixels, const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ) { driTextureObject *t = (driTextureObject *) texObj->DriverData; if (t) { I810_FIREVERTICES( I810_CONTEXT(ctx) ); driSwapOutTextureObject( t ); } else { t = (driTextureObject *) i810AllocTexObj( ctx, texObj ); if (!t) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); return; } } _mesa_store_teximage2d( ctx, target, level, internalFormat, width, height, border, format, type, pixels, packing, texObj, texImage ); } static void i810TexSubImage2D( struct gl_context *ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels, const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ) { driTextureObject *t = (driTextureObject *)texObj->DriverData; if (t) { I810_FIREVERTICES( I810_CONTEXT(ctx) ); driSwapOutTextureObject( t ); } _mesa_store_texsubimage2d(ctx, target, level, xoffset, yoffset, width, height, format, type, pixels, packing, texObj, texImage); } static void i810BindTexture( struct gl_context *ctx, GLenum target, struct gl_texture_object *tObj ) { assert( (target != GL_TEXTURE_2D) || (tObj->DriverData != NULL) ); } static void i810DeleteTexture( struct gl_context *ctx, struct gl_texture_object *tObj ) { driTextureObject * t = (driTextureObject *) tObj->DriverData; if (t) { i810ContextPtr imesa = I810_CONTEXT( ctx ); if (imesa) I810_FIREVERTICES( imesa ); driDestroyTextureObject( t ); } /* Free mipmap images and the texture object itself */ _mesa_delete_texture_object(ctx, tObj); } /** * Choose a Mesa texture format to match the requested format. * * The i810 only supports 5 texture modes that are useful to Mesa. That * makes this routine pretty simple. */ static gl_format i810ChooseTextureFormat( struct gl_context *ctx, GLint internalFormat, GLenum format, GLenum type ) { switch ( internalFormat ) { 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: case GL_COMPRESSED_RGBA: if ( ((format == GL_BGRA) && (type == GL_UNSIGNED_SHORT_1_5_5_5_REV)) || ((format == GL_RGBA) && (type == GL_UNSIGNED_SHORT_5_5_5_1)) || (internalFormat == GL_RGB5_A1) ) { return MESA_FORMAT_ARGB1555; } return MESA_FORMAT_ARGB4444; case 3: case GL_RGB: case GL_COMPRESSED_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 MESA_FORMAT_RGB565; case GL_ALPHA: case GL_ALPHA4: case GL_ALPHA8: case GL_ALPHA12: case GL_ALPHA16: case GL_COMPRESSED_ALPHA: case 1: case GL_LUMINANCE: case GL_LUMINANCE4: case GL_LUMINANCE8: case GL_LUMINANCE12: case GL_LUMINANCE16: case GL_COMPRESSED_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: case GL_COMPRESSED_LUMINANCE_ALPHA: case GL_INTENSITY: case GL_INTENSITY4: case GL_INTENSITY8: case GL_INTENSITY12: case GL_INTENSITY16: case GL_COMPRESSED_INTENSITY: return MESA_FORMAT_AL88; case GL_YCBCR_MESA: if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE) return MESA_FORMAT_YCBCR; else return MESA_FORMAT_YCBCR_REV; default: fprintf(stderr, "unexpected texture format in %s\n", __FUNCTION__); return MESA_FORMAT_NONE; } return MESA_FORMAT_NONE; /* never get here */ } /** * Allocate a new texture object. * Called via ctx->Driver.NewTextureObject. * Note: this function will be called during context creation to * allocate the default texture objects. * Note: we could use containment here to 'derive' the driver-specific * texture object from the core mesa gl_texture_object. Not done at this time. */ static struct gl_texture_object * i810NewTextureObject( struct gl_context *ctx, GLuint name, GLenum target ) { struct gl_texture_object *obj; obj = _mesa_new_texture_object(ctx, name, target); i810AllocTexObj( ctx, obj ); return obj; } void i810InitTextureFuncs( struct dd_function_table *functions ) { functions->ChooseTextureFormat = i810ChooseTextureFormat; functions->TexImage2D = i810TexImage2D; functions->TexSubImage2D = i810TexSubImage2D; functions->BindTexture = i810BindTexture; functions->NewTextureObject = i810NewTextureObject; functions->DeleteTexture = i810DeleteTexture; functions->TexParameter = i810TexParameter; functions->TexEnv = i810TexEnv; functions->IsTextureResident = driIsTextureResident; }