2 Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
4 The Weather Channel (TM) funded Tungsten Graphics to develop the
5 initial release of the Radeon 8500 driver under the XFree86 license.
6 This notice must be preserved.
8 Permission is hereby granted, free of charge, to any person obtaining
9 a copy of this software and associated documentation files (the
10 "Software"), to deal in the Software without restriction, including
11 without limitation the rights to use, copy, modify, merge, publish,
12 distribute, sublicense, and/or sell copies of the Software, and to
13 permit persons to whom the Software is furnished to do so, subject to
14 the following conditions:
16 The above copyright notice and this permission notice (including the
17 next paragraph) shall be included in all copies or substantial
18 portions of the Software.
20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 * \author Keith Whitwell <keith@tungstengraphics.com>
35 #include "main/glheader.h"
36 #include "main/imports.h"
37 #include "main/colormac.h"
38 #include "main/context.h"
39 #include "main/enums.h"
40 #include "main/image.h"
41 #include "main/mipmap.h"
42 #include "main/simple_list.h"
43 #include "main/texformat.h"
44 #include "main/texstore.h"
45 #include "main/teximage.h"
46 #include "main/texobj.h"
50 #include "r300_context.h"
51 #include "r300_state.h"
52 #include "r300_ioctl.h"
53 #include "radeon_mipmap_tree.h"
59 static unsigned int translate_wrap_mode(GLenum wrapmode
)
62 case GL_REPEAT
: return R300_TX_REPEAT
;
63 case GL_CLAMP
: return R300_TX_CLAMP
;
64 case GL_CLAMP_TO_EDGE
: return R300_TX_CLAMP_TO_EDGE
;
65 case GL_CLAMP_TO_BORDER
: return R300_TX_CLAMP_TO_BORDER
;
66 case GL_MIRRORED_REPEAT
: return R300_TX_REPEAT
| R300_TX_MIRRORED
;
67 case GL_MIRROR_CLAMP_EXT
: return R300_TX_CLAMP
| R300_TX_MIRRORED
;
68 case GL_MIRROR_CLAMP_TO_EDGE_EXT
: return R300_TX_CLAMP_TO_EDGE
| R300_TX_MIRRORED
;
69 case GL_MIRROR_CLAMP_TO_BORDER_EXT
: return R300_TX_CLAMP_TO_BORDER
| R300_TX_MIRRORED
;
71 _mesa_problem(NULL
, "bad wrap mode in %s", __FUNCTION__
);
78 * Update the cached hardware registers based on the current texture wrap modes.
80 * \param t Texture object whose wrap modes are to be set
82 static void r300UpdateTexWrap(radeonTexObjPtr t
)
84 struct gl_texture_object
*tObj
= &t
->base
;
87 ~(R300_TX_WRAP_S_MASK
| R300_TX_WRAP_T_MASK
| R300_TX_WRAP_R_MASK
);
89 t
->pp_txfilter
|= translate_wrap_mode(tObj
->WrapS
) << R300_TX_WRAP_S_SHIFT
;
91 if (tObj
->Target
!= GL_TEXTURE_1D
) {
92 t
->pp_txfilter
|= translate_wrap_mode(tObj
->WrapT
) << R300_TX_WRAP_T_SHIFT
;
94 if (tObj
->Target
== GL_TEXTURE_3D
)
95 t
->pp_txfilter
|= translate_wrap_mode(tObj
->WrapR
) << R300_TX_WRAP_R_SHIFT
;
99 static GLuint
aniso_filter(GLfloat anisotropy
)
101 if (anisotropy
>= 16.0) {
102 return R300_TX_MAX_ANISO_16_TO_1
;
103 } else if (anisotropy
>= 8.0) {
104 return R300_TX_MAX_ANISO_8_TO_1
;
105 } else if (anisotropy
>= 4.0) {
106 return R300_TX_MAX_ANISO_4_TO_1
;
107 } else if (anisotropy
>= 2.0) {
108 return R300_TX_MAX_ANISO_2_TO_1
;
110 return R300_TX_MAX_ANISO_1_TO_1
;
115 * Set the texture magnification and minification modes.
117 * \param t Texture whose filter modes are to be set
118 * \param minf Texture minification mode
119 * \param magf Texture magnification mode
120 * \param anisotropy Maximum anisotropy level
122 static void r300SetTexFilter(radeonTexObjPtr t
, GLenum minf
, GLenum magf
, GLfloat anisotropy
)
124 /* Force revalidation to account for switches from/to mipmapping. */
125 t
->validated
= GL_FALSE
;
127 t
->pp_txfilter
&= ~(R300_TX_MIN_FILTER_MASK
| R300_TX_MIN_FILTER_MIP_MASK
| R300_TX_MAG_FILTER_MASK
| R300_TX_MAX_ANISO_MASK
);
128 t
->pp_txfilter_1
&= ~R300_EDGE_ANISO_EDGE_ONLY
;
130 /* Note that EXT_texture_filter_anisotropic is extremely vague about
131 * how anisotropic filtering interacts with the "normal" filter modes.
132 * When anisotropic filtering is enabled, we override min and mag
133 * filter settings completely. This includes driconf's settings.
135 if (anisotropy
>= 2.0 && (minf
!= GL_NEAREST
) && (magf
!= GL_NEAREST
)) {
136 t
->pp_txfilter
|= R300_TX_MAG_FILTER_ANISO
137 | R300_TX_MIN_FILTER_ANISO
138 | R300_TX_MIN_FILTER_MIP_LINEAR
139 | aniso_filter(anisotropy
);
140 if (RADEON_DEBUG
& DEBUG_TEXTURE
)
141 fprintf(stderr
, "Using maximum anisotropy of %f\n", anisotropy
);
147 t
->pp_txfilter
|= R300_TX_MIN_FILTER_NEAREST
;
150 t
->pp_txfilter
|= R300_TX_MIN_FILTER_LINEAR
;
152 case GL_NEAREST_MIPMAP_NEAREST
:
153 t
->pp_txfilter
|= R300_TX_MIN_FILTER_NEAREST
|R300_TX_MIN_FILTER_MIP_NEAREST
;
155 case GL_NEAREST_MIPMAP_LINEAR
:
156 t
->pp_txfilter
|= R300_TX_MIN_FILTER_NEAREST
|R300_TX_MIN_FILTER_MIP_LINEAR
;
158 case GL_LINEAR_MIPMAP_NEAREST
:
159 t
->pp_txfilter
|= R300_TX_MIN_FILTER_LINEAR
|R300_TX_MIN_FILTER_MIP_NEAREST
;
161 case GL_LINEAR_MIPMAP_LINEAR
:
162 t
->pp_txfilter
|= R300_TX_MIN_FILTER_LINEAR
|R300_TX_MIN_FILTER_MIP_LINEAR
;
166 /* Note we don't have 3D mipmaps so only use the mag filter setting
167 * to set the 3D texture filter mode.
171 t
->pp_txfilter
|= R300_TX_MAG_FILTER_NEAREST
;
174 t
->pp_txfilter
|= R300_TX_MAG_FILTER_LINEAR
;
179 static void r300SetTexBorderColor(radeonTexObjPtr t
, const GLfloat color
[4])
182 CLAMPED_FLOAT_TO_UBYTE(c
[0], color
[0]);
183 CLAMPED_FLOAT_TO_UBYTE(c
[1], color
[1]);
184 CLAMPED_FLOAT_TO_UBYTE(c
[2], color
[2]);
185 CLAMPED_FLOAT_TO_UBYTE(c
[3], color
[3]);
186 t
->pp_border_color
= PACK_COLOR_8888(c
[3], c
[0], c
[1], c
[2]);
190 * Changes variables and flags for a state update, which will happen at the
191 * next UpdateTextureState
194 static void r300TexParameter(GLcontext
* ctx
, GLenum target
,
195 struct gl_texture_object
*texObj
,
196 GLenum pname
, const GLfloat
* params
)
198 radeonTexObj
* t
= radeon_tex_obj(texObj
);
200 if (RADEON_DEBUG
& (DEBUG_STATE
| DEBUG_TEXTURE
)) {
201 fprintf(stderr
, "%s( %s )\n", __FUNCTION__
,
202 _mesa_lookup_enum_by_nr(pname
));
206 case GL_TEXTURE_MIN_FILTER
:
207 case GL_TEXTURE_MAG_FILTER
:
208 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
209 r300SetTexFilter(t
, texObj
->MinFilter
, texObj
->MagFilter
, texObj
->MaxAnisotropy
);
212 case GL_TEXTURE_WRAP_S
:
213 case GL_TEXTURE_WRAP_T
:
214 case GL_TEXTURE_WRAP_R
:
215 r300UpdateTexWrap(t
);
218 case GL_TEXTURE_BORDER_COLOR
:
219 r300SetTexBorderColor(t
, texObj
->BorderColor
);
222 case GL_TEXTURE_BASE_LEVEL
:
223 case GL_TEXTURE_MAX_LEVEL
:
224 case GL_TEXTURE_MIN_LOD
:
225 case GL_TEXTURE_MAX_LOD
:
226 /* This isn't the most efficient solution but there doesn't appear to
227 * be a nice alternative. Since there's no LOD clamping,
228 * we just have to rely on loading the right subset of mipmap levels
229 * to simulate a clamped LOD.
232 radeon_miptree_unreference(t
->mt
);
234 t
->validated
= GL_FALSE
;
238 case GL_DEPTH_TEXTURE_MODE
:
239 if (!texObj
->Image
[0][texObj
->BaseLevel
])
241 if (texObj
->Image
[0][texObj
->BaseLevel
]->TexFormat
->BaseFormat
242 == GL_DEPTH_COMPONENT
) {
243 r300SetDepthTexMode(texObj
);
246 /* If the texture isn't a depth texture, changing this
247 * state won't cause any changes to the hardware.
248 * Don't force a flush of texture state.
258 static void r300DeleteTexture(GLcontext
* ctx
, struct gl_texture_object
*texObj
)
260 r300ContextPtr rmesa
= R300_CONTEXT(ctx
);
261 radeonTexObj
* t
= radeon_tex_obj(texObj
);
263 if (RADEON_DEBUG
& (DEBUG_STATE
| DEBUG_TEXTURE
)) {
264 fprintf(stderr
, "%s( %p (target = %s) )\n", __FUNCTION__
,
266 _mesa_lookup_enum_by_nr(texObj
->Target
));
271 radeon_firevertices(&rmesa
->radeon
);
273 for(i
= 0; i
< R300_MAX_TEXTURE_UNITS
; ++i
)
274 if (rmesa
->hw
.textures
[i
] == t
)
275 rmesa
->hw
.textures
[i
] = 0;
279 radeon_bo_unref(t
->bo
);
284 radeon_miptree_unreference(t
->mt
);
287 _mesa_delete_texture_object(ctx
, texObj
);
291 * Allocate a new texture object.
292 * Called via ctx->Driver.NewTextureObject.
293 * Note: this function will be called during context creation to
294 * allocate the default texture objects.
295 * Fixup MaxAnisotropy according to user preference.
297 static struct gl_texture_object
*r300NewTextureObject(GLcontext
* ctx
,
301 r300ContextPtr rmesa
= R300_CONTEXT(ctx
);
302 radeonTexObj
* t
= CALLOC_STRUCT(radeon_tex_obj
);
305 if (RADEON_DEBUG
& (DEBUG_STATE
| DEBUG_TEXTURE
)) {
306 fprintf(stderr
, "%s( %p (target = %s) )\n", __FUNCTION__
,
307 t
, _mesa_lookup_enum_by_nr(target
));
310 _mesa_initialize_texture_object(&t
->base
, name
, target
);
311 t
->base
.MaxAnisotropy
= rmesa
->radeon
.initialMaxAnisotropy
;
313 /* Initialize hardware state */
314 r300UpdateTexWrap(t
);
315 r300SetTexFilter(t
, t
->base
.MinFilter
, t
->base
.MagFilter
, t
->base
.MaxAnisotropy
);
316 r300SetTexBorderColor(t
, t
->base
.BorderColor
);
321 void r300InitTextureFuncs(struct dd_function_table
*functions
)
323 /* Note: we only plug in the functions we implement in the driver
324 * since _mesa_init_driver_functions() was already called.
326 functions
->NewTextureImage
= radeonNewTextureImage
;
327 functions
->FreeTexImageData
= radeonFreeTexImageData
;
328 functions
->MapTexture
= radeonMapTexture
;
329 functions
->UnmapTexture
= radeonUnmapTexture
;
331 functions
->ChooseTextureFormat
= radeonChooseTextureFormat_mesa
;
332 functions
->TexImage1D
= radeonTexImage1D
;
333 functions
->TexImage2D
= radeonTexImage2D
;
334 functions
->TexImage3D
= radeonTexImage3D
;
335 functions
->TexSubImage1D
= radeonTexSubImage1D
;
336 functions
->TexSubImage2D
= radeonTexSubImage2D
;
337 functions
->TexSubImage3D
= radeonTexSubImage3D
;
338 functions
->GetTexImage
= radeonGetTexImage
;
339 functions
->GetCompressedTexImage
= radeonGetCompressedTexImage
;
340 functions
->NewTextureObject
= r300NewTextureObject
;
341 functions
->DeleteTexture
= r300DeleteTexture
;
342 functions
->IsTextureResident
= driIsTextureResident
;
344 functions
->TexParameter
= r300TexParameter
;
346 functions
->CompressedTexImage2D
= radeonCompressedTexImage2D
;
347 functions
->CompressedTexSubImage2D
= radeonCompressedTexSubImage2D
;
349 functions
->GenerateMipmap
= radeonGenerateMipmap
;
351 driInitTextureFormats();