1 /**************************************************************************
3 * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * Copyright 2009 Intel Corporation.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
29 #include "main/arrayobj.h"
30 #include "main/attrib.h"
31 #include "main/blend.h"
32 #include "main/bufferobj.h"
33 #include "main/buffers.h"
34 #include "main/depth.h"
35 #include "main/enable.h"
36 #include "main/matrix.h"
37 #include "main/macros.h"
38 #include "main/polygon.h"
39 #include "main/shaders.h"
40 #include "main/stencil.h"
41 #include "main/texstate.h"
42 #include "main/varray.h"
43 #include "main/viewport.h"
44 #include "shader/arbprogram.h"
45 #include "shader/program.h"
46 #include "dri_metaops.h"
49 meta_set_passthrough_transform(struct dri_metaops
*meta
)
51 GLcontext
*ctx
= meta
->ctx
;
53 meta
->saved_vp_x
= ctx
->Viewport
.X
;
54 meta
->saved_vp_y
= ctx
->Viewport
.Y
;
55 meta
->saved_vp_width
= ctx
->Viewport
.Width
;
56 meta
->saved_vp_height
= ctx
->Viewport
.Height
;
57 meta
->saved_matrix_mode
= ctx
->Transform
.MatrixMode
;
59 meta
->internal_viewport_call
= GL_TRUE
;
60 _mesa_Viewport(0, 0, ctx
->DrawBuffer
->Width
, ctx
->DrawBuffer
->Height
);
61 meta
->internal_viewport_call
= GL_FALSE
;
63 _mesa_MatrixMode(GL_PROJECTION
);
66 _mesa_Ortho(0, ctx
->DrawBuffer
->Width
, 0, ctx
->DrawBuffer
->Height
, 1, -1);
68 _mesa_MatrixMode(GL_MODELVIEW
);
74 meta_restore_transform(struct dri_metaops
*meta
)
76 _mesa_MatrixMode(GL_PROJECTION
);
78 _mesa_MatrixMode(GL_MODELVIEW
);
81 _mesa_MatrixMode(meta
->saved_matrix_mode
);
83 meta
->internal_viewport_call
= GL_TRUE
;
84 _mesa_Viewport(meta
->saved_vp_x
, meta
->saved_vp_y
,
85 meta
->saved_vp_width
, meta
->saved_vp_height
);
86 meta
->internal_viewport_call
= GL_FALSE
;
91 * Set up a vertex program to pass through the position and first texcoord
95 meta_set_passthrough_vertex_program(struct dri_metaops
*meta
)
97 GLcontext
*ctx
= meta
->ctx
;
98 static const char *vp
=
101 "DP4 vertexClip.x, state.matrix.mvp.row[0], vertex.position;\n"
102 "DP4 vertexClip.y, state.matrix.mvp.row[1], vertex.position;\n"
103 "DP4 vertexClip.z, state.matrix.mvp.row[2], vertex.position;\n"
104 "DP4 vertexClip.w, state.matrix.mvp.row[3], vertex.position;\n"
105 "MOV result.position, vertexClip;\n"
106 "MOV result.texcoord[0], vertex.texcoord[0];\n"
107 "MOV result.color, vertex.color;\n"
110 assert(meta
->saved_vp
== NULL
);
112 _mesa_reference_vertprog(ctx
, &meta
->saved_vp
,
113 ctx
->VertexProgram
.Current
);
114 if (meta
->passthrough_vp
== NULL
) {
116 _mesa_GenPrograms(1, &prog_name
);
117 _mesa_BindProgram(GL_VERTEX_PROGRAM_ARB
, prog_name
);
118 _mesa_ProgramStringARB(GL_VERTEX_PROGRAM_ARB
,
119 GL_PROGRAM_FORMAT_ASCII_ARB
,
120 strlen(vp
), (const GLubyte
*)vp
);
121 _mesa_reference_vertprog(ctx
, &meta
->passthrough_vp
,
122 ctx
->VertexProgram
.Current
);
123 _mesa_DeletePrograms(1, &prog_name
);
126 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
127 _mesa_reference_vertprog(ctx
, &ctx
->VertexProgram
.Current
,
128 meta
->passthrough_vp
);
129 ctx
->Driver
.BindProgram(ctx
, GL_VERTEX_PROGRAM_ARB
,
130 &meta
->passthrough_vp
->Base
);
132 meta
->saved_vp_enable
= ctx
->VertexProgram
.Enabled
;
133 _mesa_Enable(GL_VERTEX_PROGRAM_ARB
);
137 * Restores the previous vertex program after
138 * meta_set_passthrough_vertex_program()
141 meta_restore_vertex_program(struct dri_metaops
*meta
)
143 GLcontext
*ctx
= meta
->ctx
;
145 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
146 _mesa_reference_vertprog(ctx
, &ctx
->VertexProgram
.Current
,
148 _mesa_reference_vertprog(ctx
, &meta
->saved_vp
, NULL
);
149 ctx
->Driver
.BindProgram(ctx
, GL_VERTEX_PROGRAM_ARB
,
150 &ctx
->VertexProgram
.Current
->Base
);
152 if (!meta
->saved_vp_enable
)
153 _mesa_Disable(GL_VERTEX_PROGRAM_ARB
);
157 * Binds the given program string to GL_FRAGMENT_PROGRAM_ARB, caching the
161 meta_set_fragment_program(struct dri_metaops
*meta
,
162 struct gl_fragment_program
**prog
,
163 const char *prog_string
)
165 GLcontext
*ctx
= meta
->ctx
;
166 assert(meta
->saved_fp
== NULL
);
168 _mesa_reference_fragprog(ctx
, &meta
->saved_fp
,
169 ctx
->FragmentProgram
.Current
);
172 _mesa_GenPrograms(1, &prog_name
);
173 _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB
, prog_name
);
174 _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB
,
175 GL_PROGRAM_FORMAT_ASCII_ARB
,
176 strlen(prog_string
), (const GLubyte
*)prog_string
);
177 _mesa_reference_fragprog(ctx
, prog
, ctx
->FragmentProgram
.Current
);
178 /* Note that DeletePrograms unbinds the program on us */
179 _mesa_DeletePrograms(1, &prog_name
);
182 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
183 _mesa_reference_fragprog(ctx
, &ctx
->FragmentProgram
.Current
, *prog
);
184 ctx
->Driver
.BindProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
, &((*prog
)->Base
));
186 meta
->saved_fp_enable
= ctx
->FragmentProgram
.Enabled
;
187 _mesa_Enable(GL_FRAGMENT_PROGRAM_ARB
);
191 * Restores the previous fragment program after
192 * meta_set_fragment_program()
195 meta_restore_fragment_program(struct dri_metaops
*meta
)
197 GLcontext
*ctx
= meta
->ctx
;
199 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
200 _mesa_reference_fragprog(ctx
, &ctx
->FragmentProgram
.Current
,
202 _mesa_reference_fragprog(ctx
, &meta
->saved_fp
, NULL
);
203 ctx
->Driver
.BindProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
,
204 &ctx
->FragmentProgram
.Current
->Base
);
206 if (!meta
->saved_fp_enable
)
207 _mesa_Disable(GL_FRAGMENT_PROGRAM_ARB
);
210 static const float default_texcoords
[4][2] = { { 0.0, 0.0 },
216 meta_set_default_texrect(struct dri_metaops
*meta
)
218 GLcontext
*ctx
= meta
->ctx
;
219 struct gl_client_array
*old_texcoord_array
;
221 meta
->saved_active_texture
= ctx
->Texture
.CurrentUnit
;
222 if (meta
->saved_array_vbo
== NULL
) {
223 _mesa_reference_buffer_object(ctx
, &meta
->saved_array_vbo
,
224 ctx
->Array
.ArrayBufferObj
);
227 old_texcoord_array
= &ctx
->Array
.ArrayObj
->TexCoord
[0];
228 meta
->saved_texcoord_type
= old_texcoord_array
->Type
;
229 meta
->saved_texcoord_size
= old_texcoord_array
->Size
;
230 meta
->saved_texcoord_stride
= old_texcoord_array
->Stride
;
231 meta
->saved_texcoord_enable
= old_texcoord_array
->Enabled
;
232 meta
->saved_texcoord_ptr
= old_texcoord_array
->Ptr
;
233 _mesa_reference_buffer_object(ctx
, &meta
->saved_texcoord_vbo
,
234 old_texcoord_array
->BufferObj
);
236 _mesa_ClientActiveTextureARB(GL_TEXTURE0
);
238 if (meta
->texcoord_vbo
== NULL
) {
241 _mesa_GenBuffersARB(1, &vbo_name
);
242 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
, vbo_name
);
243 _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB
, sizeof(default_texcoords
),
244 default_texcoords
, GL_STATIC_DRAW_ARB
);
245 _mesa_reference_buffer_object(ctx
, &meta
->texcoord_vbo
,
246 ctx
->Array
.ArrayBufferObj
);
248 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
,
249 meta
->texcoord_vbo
->Name
);
251 _mesa_TexCoordPointer(2, GL_FLOAT
, 2 * sizeof(GLfloat
), NULL
);
253 _mesa_Enable(GL_TEXTURE_COORD_ARRAY
);
257 meta_restore_texcoords(struct dri_metaops
*meta
)
259 GLcontext
*ctx
= meta
->ctx
;
261 /* Restore the old TexCoordPointer */
262 if (meta
->saved_texcoord_vbo
) {
263 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
,
264 meta
->saved_texcoord_vbo
->Name
);
265 _mesa_reference_buffer_object(ctx
, &meta
->saved_texcoord_vbo
, NULL
);
267 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
, 0);
270 _mesa_TexCoordPointer(meta
->saved_texcoord_size
,
271 meta
->saved_texcoord_type
,
272 meta
->saved_texcoord_stride
,
273 meta
->saved_texcoord_ptr
);
274 if (!meta
->saved_texcoord_enable
)
275 _mesa_Disable(GL_TEXTURE_COORD_ARRAY
);
277 _mesa_ClientActiveTextureARB(GL_TEXTURE0
+
278 meta
->saved_active_texture
);
280 if (meta
->saved_array_vbo
) {
281 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
,
282 meta
->saved_array_vbo
->Name
);
283 _mesa_reference_buffer_object(ctx
, &meta
->saved_array_vbo
, NULL
);
285 _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB
, 0);
290 void meta_init_metaops(GLcontext
*ctx
, struct dri_metaops
*meta
)
295 void meta_destroy_metaops(struct dri_metaops
*meta
)