diff options
Diffstat (limited to 'src/mesa/drivers/dri/i830/i830_tex.c')
| -rw-r--r-- | src/mesa/drivers/dri/i830/i830_tex.c | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i830/i830_tex.c b/src/mesa/drivers/dri/i830/i830_tex.c new file mode 100644 index 0000000000..14a70a0905 --- /dev/null +++ b/src/mesa/drivers/dri/i830/i830_tex.c @@ -0,0 +1,579 @@ +/************************************************************************** + +Copyright 2001 2d3d Inc., Delray Beach, FL + +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 +on 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 +ATI, VA LINUX SYSTEMS AND/OR THEIR 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. + +**************************************************************************/ + +/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_tex.c,v 1.5 2003/05/07 21:56:31 dawes Exp $ */ + +/* + * Author: + * Jeff Hartmann <jhartmann@2d3d.com> + * + * Heavily based on the I810 driver, which was written by: + * Keith Whitwell <keithw@tungstengraphics.com> + */ + +#include "glheader.h" +#include "mtypes.h" +#include "imports.h" +#include "simple_list.h" +#include "enums.h" +#include "texstore.h" +#include "teximage.h" +#include "texformat.h" +#include "texmem.h" +#include "swrast/swrast.h" + +#include "mm.h" + +#include "i830_screen.h" +#include "i830_dri.h" +#include "i830_context.h" +#include "i830_tex.h" +#include "i830_state.h" +#include "i830_ioctl.h" + +/* + * Compute the 'S2.4' lod bias factor from the floating point OpenGL bias. + */ +static void i830ComputeLodBias( i830ContextPtr imesa, unsigned unit, + GLfloat bias ) +{ + int b; + + b = (int) (bias * 16.0); + if(b > 63) b = 63; + else if (b < -64) b = -64; + imesa->LodBias[ unit ] = ((b << TM0S3_LOD_BIAS_SHIFT) & + TM0S3_LOD_BIAS_MASK); +} + + +/** + * Set the texture wrap modes. + * + * The i830M (and related graphics cores) do not support GL_CLAMP. The Intel + * drivers for "other operating systems" implement GL_CLAMP as + * GL_CLAMP_TO_EDGE, so the same is done here. + * + * \param t Texture object whose wrap modes are to be set + * \param swrap Wrap mode for the \a s texture coordinate + * \param twrap Wrap mode for the \a t texture coordinate + */ + +static void i830SetTexWrapping(i830TextureObjectPtr tex, + GLenum swrap, GLenum twrap) +{ + tex->Setup[I830_TEXREG_MCS] &= ~(TEXCOORD_ADDR_U_MASK|TEXCOORD_ADDR_V_MASK); + + switch( swrap ) { + case GL_REPEAT: + tex->Setup[I830_TEXREG_MCS] |= TEXCOORD_ADDR_U_MODE(TEXCOORDMODE_WRAP); + break; + case GL_CLAMP: + case GL_CLAMP_TO_EDGE: + tex->Setup[I830_TEXREG_MCS] |= TEXCOORD_ADDR_U_MODE(TEXCOORDMODE_CLAMP); + break; + case GL_CLAMP_TO_BORDER: + tex->Setup[I830_TEXREG_MCS] |= + TEXCOORD_ADDR_U_MODE(TEXCOORDMODE_CLAMP_BORDER); + break; + case GL_MIRRORED_REPEAT: + tex->Setup[I830_TEXREG_MCS] |= + TEXCOORD_ADDR_U_MODE(TEXCOORDMODE_MIRROR); + break; + default: + _mesa_problem(NULL, "bad S wrap mode in %s", __FUNCTION__); + } + + switch( twrap ) { + case GL_REPEAT: + tex->Setup[I830_TEXREG_MCS] |= TEXCOORD_ADDR_V_MODE(TEXCOORDMODE_WRAP); + break; + case GL_CLAMP: + case GL_CLAMP_TO_EDGE: + tex->Setup[I830_TEXREG_MCS] |= TEXCOORD_ADDR_V_MODE(TEXCOORDMODE_CLAMP); + break; + case GL_CLAMP_TO_BORDER: + tex->Setup[I830_TEXREG_MCS] |= + TEXCOORD_ADDR_V_MODE(TEXCOORDMODE_CLAMP_BORDER); + break; + case GL_MIRRORED_REPEAT: + tex->Setup[I830_TEXREG_MCS] |= + TEXCOORD_ADDR_V_MODE(TEXCOORDMODE_MIRROR); + break; + default: + _mesa_problem(NULL, "bad T wrap mode in %s", __FUNCTION__); + } +} + +static void i830SetTexMaxAnisotropy( i830TextureObjectPtr t, GLfloat max ) +{ + t->max_anisotropy = max; +} + + +/** + * Set the texture magnification and minification modes. + * + * \param t Texture whose filter modes are to be set + * \param minf Texture minification mode + * \param magf Texture magnification mode + * \param bias LOD bias for this texture unit. + */ + +static void i830SetTexFilter( i830TextureObjectPtr t, + GLenum minf, GLenum magf ) +{ + int minFilt = 0, mipFilt = 0, magFilt = 0; + + if(I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + if ( t->max_anisotropy > 1.0 ) { + minFilt = FILTER_ANISOTROPIC; + magFilt = FILTER_ANISOTROPIC; + } + else { + switch (minf) { + case GL_NEAREST: + minFilt = FILTER_NEAREST; + mipFilt = MIPFILTER_NONE; + break; + case GL_LINEAR: + minFilt = FILTER_LINEAR; + mipFilt = MIPFILTER_NONE; + break; + case GL_NEAREST_MIPMAP_NEAREST: + minFilt = FILTER_NEAREST; + mipFilt = MIPFILTER_NEAREST; + break; + case GL_LINEAR_MIPMAP_NEAREST: + minFilt = FILTER_LINEAR; + mipFilt = MIPFILTER_NEAREST; + break; + case GL_NEAREST_MIPMAP_LINEAR: + minFilt = FILTER_NEAREST; + mipFilt = MIPFILTER_LINEAR; + break; + case GL_LINEAR_MIPMAP_LINEAR: + minFilt = FILTER_LINEAR; + mipFilt = MIPFILTER_LINEAR; + break; + default: + _mesa_problem(NULL, "%s: Unsupported min. filter %d", __FUNCTION__, + (int) minf ); + break; + } + + switch (magf) { + case GL_NEAREST: + magFilt = FILTER_NEAREST; + break; + case GL_LINEAR: + magFilt = FILTER_LINEAR; + break; + default: + _mesa_problem(NULL, "%s: Unsupported mag. filter %d", __FUNCTION__, + (int) magf ); + break; + } + } + + t->Setup[I830_TEXREG_TM0S3] &= ~TM0S3_MIN_FILTER_MASK; + t->Setup[I830_TEXREG_TM0S3] &= ~TM0S3_MIP_FILTER_MASK; + t->Setup[I830_TEXREG_TM0S3] &= ~TM0S3_MAG_FILTER_MASK; + t->Setup[I830_TEXREG_TM0S3] |= ((minFilt << TM0S3_MIN_FILTER_SHIFT) | + (mipFilt << TM0S3_MIP_FILTER_SHIFT) | + (magFilt << TM0S3_MAG_FILTER_SHIFT)); +} + +static void i830SetTexBorderColor(i830TextureObjectPtr t, GLubyte color[4]) +{ + if(I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + t->Setup[I830_TEXREG_TM0S4] = + I830PACKCOLOR8888(color[0],color[1],color[2],color[3]); +} + + +/** + * Allocate space for and load the mesa images into the texture memory block. + * This will happen before drawing with a new texture, or drawing with a + * texture after it was swapped out or teximaged again. + */ + +static i830TextureObjectPtr i830AllocTexObj( struct gl_texture_object *texObj ) +{ + i830TextureObjectPtr t; + + t = CALLOC_STRUCT( i830_texture_object_t ); + texObj->DriverData = t; + if ( t != NULL ) { + /* Initialize non-image-dependent parts of the state: + */ + t->base.tObj = texObj; + + t->Setup[I830_TEXREG_TM0LI] = STATE3D_LOAD_STATE_IMMEDIATE_2; + t->Setup[I830_TEXREG_TM0S0] = TM0S0_USE_FENCE; + t->Setup[I830_TEXREG_TM0S1] = 0; + t->Setup[I830_TEXREG_TM0S2] = 0; + t->Setup[I830_TEXREG_TM0S3] = 0; + + t->Setup[I830_TEXREG_NOP0] = 0; + t->Setup[I830_TEXREG_NOP1] = 0; + t->Setup[I830_TEXREG_NOP2] = 0; + + t->Setup[I830_TEXREG_MCS] = (STATE3D_MAP_COORD_SET_CMD | + MAP_UNIT(0) | + ENABLE_TEXCOORD_PARAMS | + TEXCOORDS_ARE_NORMAL | + TEXCOORDTYPE_CARTESIAN | + ENABLE_ADDR_V_CNTL | + TEXCOORD_ADDR_V_MODE(TEXCOORDMODE_WRAP) | + ENABLE_ADDR_U_CNTL | + TEXCOORD_ADDR_U_MODE(TEXCOORDMODE_WRAP)); + + make_empty_list( & t->base ); + + i830SetTexWrapping( t, texObj->WrapS, texObj->WrapT ); + i830SetTexMaxAnisotropy( t, texObj->MaxAnisotropy ); + i830SetTexFilter( t, texObj->MinFilter, texObj->MagFilter ); + i830SetTexBorderColor( t, texObj->_BorderChan ); + } + + return t; +} + + +static void i830TexParameter( GLcontext *ctx, GLenum target, + struct gl_texture_object *tObj, + GLenum pname, const GLfloat *params ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + i830TextureObjectPtr t = (i830TextureObjectPtr) tObj->DriverData; + GLuint unit = ctx->Texture.CurrentUnit; + 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->NewGLState means that + * i830UpdateTextureState() 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: + case GL_TEXTURE_MAX_ANISOTROPY_EXT: + i830SetTexMaxAnisotropy( t, tObj->MaxAnisotropy ); + i830SetTexFilter( t, tObj->MinFilter, tObj->MagFilter ); + break; + + case GL_TEXTURE_WRAP_S: + case GL_TEXTURE_WRAP_T: + i830SetTexWrapping( t, tObj->WrapS, tObj->WrapT ); + break; + + case GL_TEXTURE_BORDER_COLOR: + i830SetTexBorderColor( t, tObj->_BorderChan ); + break; + + case GL_TEXTURE_BASE_LEVEL: + case GL_TEXTURE_MAX_LEVEL: + case GL_TEXTURE_MIN_LOD: + case GL_TEXTURE_MAX_LOD: + /* The i830 and its successors can do a lot of this without + * reloading the textures. A project for someone? + */ + I830_FIREVERTICES( I830_CONTEXT(ctx) ); + driSwapOutTextureObject( (driTextureObject *) t ); + break; + + default: + return; + } + + if (t == imesa->CurrentTexObj[unit]) { + I830_STATECHANGE( imesa, I830_UPLOAD_TEX0 ); + } +} + + +static void i830TexEnv( GLcontext *ctx, GLenum target, + GLenum pname, const GLfloat *param ) +{ + i830ContextPtr imesa = I830_CONTEXT( ctx ); + GLuint unit = ctx->Texture.CurrentUnit; + + /* 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: + case GL_TEXTURE_ENV_MODE: + case GL_COMBINE_RGB_EXT: + case GL_COMBINE_ALPHA_EXT: + case GL_SOURCE0_RGB_EXT: + case GL_SOURCE1_RGB_EXT: + case GL_SOURCE2_RGB_EXT: + case GL_SOURCE0_ALPHA_EXT: + case GL_SOURCE1_ALPHA_EXT: + case GL_SOURCE2_ALPHA_EXT: + case GL_OPERAND0_RGB_EXT: + case GL_OPERAND1_RGB_EXT: + case GL_OPERAND2_RGB_EXT: + case GL_OPERAND0_ALPHA_EXT: + case GL_OPERAND1_ALPHA_EXT: + case GL_OPERAND2_ALPHA_EXT: + case GL_RGB_SCALE_EXT: + case GL_ALPHA_SCALE: + imesa->TexEnvImageFmt[unit] = 0; /* force recalc of env state */ + break; + + case GL_TEXTURE_LOD_BIAS_EXT: + i830ComputeLodBias( imesa, unit, *param ); + I830_STATECHANGE( imesa, I830_UPLOAD_TEX_N(unit) ); + break; + + default: + break; + } +} + +static void i830TexImage2D( GLcontext *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) { + I830_FIREVERTICES( I830_CONTEXT(ctx) ); + driSwapOutTextureObject( t ); + } + else { + t = (driTextureObject *) i830AllocTexObj( 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 i830TexSubImage2D( GLcontext *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) { + I830_FIREVERTICES( I830_CONTEXT(ctx) ); + driSwapOutTextureObject( t ); + } + _mesa_store_texsubimage2d(ctx, target, level, xoffset, yoffset, width, + height, format, type, pixels, packing, texObj, + texImage); + +} + + +static void i830BindTexture( GLcontext *ctx, GLenum target, + struct gl_texture_object *tObj ) +{ + if (!tObj->DriverData) { + i830AllocTexObj( tObj ); + } +} + + +static void i830DeleteTexture( GLcontext *ctx, struct gl_texture_object *tObj ) +{ + driTextureObject * t = (driTextureObject *) tObj->DriverData; + + if ( t != NULL ) { + i830ContextPtr imesa = I830_CONTEXT( ctx ); + + if ( imesa ) { + I830_FIREVERTICES( imesa ); + } + + driDestroyTextureObject( t ); + } +} + + +static const struct gl_texture_format * +i830ChooseTextureFormat( GLcontext *ctx, GLint internalFormat, + GLenum format, GLenum type ) +{ + i830ContextPtr imesa = I830_CONTEXT( ctx ); + const GLboolean do32bpt = ( imesa->i830Screen->cpp == 4 && + imesa->i830Screen->textureSize > 4*1024*1024); + + switch ( internalFormat ) { + case 4: + case GL_RGBA: + case GL_COMPRESSED_RGBA: + if ( format == GL_BGRA ) { + if ( 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 do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_rgb565; + + 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_al88; + + 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; + + default: + fprintf(stderr, "unexpected texture format in %s\n", __FUNCTION__); + return NULL; + } + + return NULL; /* never get here */ +} + +void i830DDInitTextureFuncs( GLcontext *ctx ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + ctx->Driver.TexEnv = i830TexEnv; + ctx->Driver.ChooseTextureFormat = i830ChooseTextureFormat; + ctx->Driver.TexImage1D = _mesa_store_teximage1d; + ctx->Driver.TexImage2D = i830TexImage2D; + ctx->Driver.TexImage3D = _mesa_store_teximage3d; + ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d; + ctx->Driver.TexSubImage2D = i830TexSubImage2D; + ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d; + ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d; + ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d; + ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d; + ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d; + ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d; + ctx->Driver.BindTexture = i830BindTexture; + ctx->Driver.DeleteTexture = i830DeleteTexture; + ctx->Driver.TexParameter = i830TexParameter; + ctx->Driver.UpdateTexturePalette = NULL; + ctx->Driver.IsTextureResident = driIsTextureResident; + ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage; + + driInitTextureObjects( ctx, & imesa->swapped, + DRI_TEXMGR_DO_TEXTURE_2D + | DRI_TEXMGR_DO_TEXTURE_RECT ); +} |