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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/i810/i810tex.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/i810/i810tex.c564
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diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/i810/i810tex.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i810/i810tex.c
new file mode 100644
index 000000000..0aba8e8aa
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i810/i810tex.c
@@ -0,0 +1,564 @@
+/*
+ * 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.
+ *
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/i810/i810tex.c,v 1.9 2002/10/30 12:51:33 alanh Exp $ */
+
+#include "glheader.h"
+#include "mtypes.h"
+#include "imports.h"
+#include "simple_list.h"
+#include "enums.h"
+#include "texstore.h"
+#include "texformat.h"
+#include "teximage.h"
+#include "texmem.h"
+#include "texobj.h"
+#include "swrast/swrast.h"
+#include "colormac.h"
+#include "texobj.h"
+#include "mm.h"
+
+#include "i810screen.h"
+#include "i810_dri.h"
+
+#include "i810context.h"
+#include "i810tex.h"
+#include "i810state.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, GLubyte color[4] )
+{
+ /* Need a fallback.
+ */
+}
+
+
+static i810TextureObjectPtr
+i810AllocTexObj( GLcontext *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->_BorderChan );
+ }
+
+ return t;
+}
+
+
+static void i810TexParameter( GLcontext *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->_BorderChan );
+ 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( GLcontext *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( GLcontext *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( GLcontext *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( 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) {
+ 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( 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) {
+ 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( GLcontext *ctx, GLenum target,
+ struct gl_texture_object *tObj )
+{
+ assert( (target != GL_TEXTURE_2D) || (tObj->DriverData != NULL) );
+}
+
+
+static void i810DeleteTexture( GLcontext *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.
+ *
+ * \todo
+ * Determine why \c _mesa_texformat_al88 doesn't work right for
+ * \c GL_LUMINANCE_ALPHA textures. It seems to work fine for \c GL_INTENSITY,
+ * but \c GL_LUMINANCE_ALPHA gets some red bands in progs/demos/texenv.
+ */
+static const struct gl_texture_format *
+i810ChooseTextureFormat( GLcontext *ctx, GLint internalFormat,
+ GLenum format, GLenum type )
+{
+ switch ( internalFormat ) {
+ case 4:
+ case GL_RGBA:
+ case GL_COMPRESSED_RGBA:
+ if ( format == GL_BGRA ) {
+ if ( type == GL_UNSIGNED_SHORT_1_5_5_5_REV ) {
+ return &_mesa_texformat_argb1555;
+ }
+ }
+ return &_mesa_texformat_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_texformat_rgb565;
+
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return &_mesa_texformat_argb4444;
+
+ case GL_RGB5_A1:
+ return &_mesa_texformat_argb1555;
+
+ 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_rgb565;
+
+ 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:
+#if 0
+ return &_mesa_texformat_al88;
+#else
+ return &_mesa_texformat_argb4444;
+#endif
+
+ 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 */
+}
+
+/**
+ * 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( GLcontext *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;
+}
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