1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
26 #include "util/u_inlines.h"
27 #include "pipe/p_defines.h"
29 #include "svga_context.h"
30 #include "svga_state.h"
32 #include "svga_tgsi.h"
33 #include "svga_debug.h"
35 #include "svga_hw_reg.h"
37 /***********************************************************************
41 /* Convert from PIPE_SHADER_* to SVGA3D_SHADERTYPE_*
43 static int svga_shader_type( int shader )
45 assert(PIPE_SHADER_VERTEX + 1 == SVGA3D_SHADERTYPE_VS);
46 assert(PIPE_SHADER_FRAGMENT + 1 == SVGA3D_SHADERTYPE_PS);
47 assert(shader <= PIPE_SHADER_FRAGMENT);
52 static int emit_const( struct svga_context *svga,
59 if (memcmp(svga->state.hw_draw.cb[unit][i], value, 4 * sizeof(float)) != 0) {
60 if (SVGA_DEBUG & DEBUG_CONSTS)
61 debug_printf("%s %s %d: %f %f %f %f\n",
63 unit == PIPE_SHADER_VERTEX ? "VERT" : "FRAG",
70 ret = SVGA3D_SetShaderConst( svga->swc,
72 svga_shader_type(unit),
73 SVGA3D_CONST_TYPE_FLOAT,
78 memcpy(svga->state.hw_draw.cb[unit][i], value, 4 * sizeof(float));
84 static int emit_consts( struct svga_context *svga,
88 struct pipe_transfer *transfer = NULL;
90 const float (*data)[4] = NULL;
94 if (svga->curr.cb[unit] == NULL)
97 count = svga->curr.cb[unit]->width0 / (4 * sizeof(float));
99 data = (const float (*)[4])pipe_buffer_map(&svga->pipe,
104 ret = PIPE_ERROR_OUT_OF_MEMORY;
108 for (i = 0; i < count; i++) {
109 ret = emit_const( svga, unit, offset + i, data[i] );
116 pipe_buffer_unmap(&svga->pipe, transfer);
121 static int emit_fs_consts( struct svga_context *svga,
124 const struct svga_shader_result *result = svga->state.hw_draw.fs;
125 const struct svga_fs_compile_key *key = &result->key.fkey;
128 ret = emit_consts( svga, 0, PIPE_SHADER_FRAGMENT );
132 /* The internally generated fragment shader for xor blending
133 * doesn't have a 'result' struct. It should be fixed to avoid
134 * this special case, but work around it with a NULL check:
136 if (result != NULL &&
137 key->num_unnormalized_coords)
139 unsigned offset = result->shader->info.file_max[TGSI_FILE_CONSTANT] + 1;
142 for (i = 0; i < key->num_textures; i++) {
143 if (key->tex[i].unnormalized) {
144 struct pipe_resource *tex = svga->curr.sampler_views[i]->texture;
147 data[0] = 1.0 / (float)tex->width0;
148 data[1] = 1.0 / (float)tex->height0;
152 ret = emit_const( svga,
153 PIPE_SHADER_FRAGMENT,
154 key->tex[i].width_height_idx + offset,
161 offset += key->num_unnormalized_coords;
168 struct svga_tracked_state svga_hw_fs_parameters =
171 (SVGA_NEW_FS_CONST_BUFFER |
173 SVGA_NEW_TEXTURE_BINDING),
177 /***********************************************************************
180 static int emit_vs_consts( struct svga_context *svga,
183 const struct svga_shader_result *result = svga->state.hw_draw.vs;
184 const struct svga_vs_compile_key *key = &result->key.vkey;
188 /* SVGA_NEW_VS_RESULT
193 /* SVGA_NEW_VS_CONST_BUFFER
195 ret = emit_consts( svga, 0, PIPE_SHADER_VERTEX );
199 offset = result->shader->info.file_max[TGSI_FILE_CONSTANT] + 1;
201 /* SVGA_NEW_VS_RESULT
203 if (key->need_prescale) {
204 ret = emit_const( svga, PIPE_SHADER_VERTEX, offset++,
205 svga->state.hw_clear.prescale.scale );
209 ret = emit_const( svga, PIPE_SHADER_VERTEX, offset++,
210 svga->state.hw_clear.prescale.translate );
215 /* SVGA_NEW_ZERO_STRIDE
217 if (key->zero_stride_vertex_elements) {
218 unsigned i, curr_zero_stride = 0;
219 for (i = 0; i < PIPE_MAX_ATTRIBS; ++i) {
220 if (key->zero_stride_vertex_elements & (1 << i)) {
221 ret = emit_const( svga, PIPE_SHADER_VERTEX, offset++,
222 svga->curr.zero_stride_constants +
223 4 * curr_zero_stride );
235 struct svga_tracked_state svga_hw_vs_parameters =
239 SVGA_NEW_VS_CONST_BUFFER |
240 SVGA_NEW_ZERO_STRIDE |