1/**********************************************************
2 * Copyright 2009-2011 VMware, Inc. All rights reserved.
3 *
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:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
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
22 * SOFTWARE.
23 *
24 *********************************************************
25 * Authors:
26 * Zack Rusin <zackr-at-vmware-dot-com>
27 * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
28 */
29
30#ifndef _XA_PRIV_H_
31#define _XA_PRIV_H_
32
33#include "xa_tracker.h"
34#include "xa_context.h"
35#include "xa_composite.h"
36
37#include "pipe/p_screen.h"
38#include "pipe/p_context.h"
39#include "pipe/p_state.h"
40
41#include "util/u_math.h"
42
43#if defined(__GNUC__)
44#define XA_EXPORT __attribute__ ((visibility("default")))
45#else
46#define XA_EXPORT
47#endif
48
49#define XA_VB_SIZE (100 * 4 * 3 * 4)
50#define XA_LAST_SURFACE_TYPE (xa_type_yuv_component + 1)
51#define XA_MAX_SAMPLERS 3
52
53struct xa_fence {
54    struct pipe_fence_handle *pipe_fence;
55    struct xa_tracker *xa;
56};
57
58struct xa_format_descriptor {
59    enum pipe_format format;
60    enum xa_formats xa_format;
61};
62
63struct xa_surface {
64    int refcount;
65    struct pipe_resource template;
66    struct xa_tracker *xa;
67    struct pipe_resource *tex;
68    struct pipe_transfer *transfer;
69    unsigned int flags;
70    struct xa_format_descriptor fdesc;
71    struct pipe_context *mapping_pipe;
72};
73
74struct xa_tracker {
75    enum xa_formats *supported_formats;
76    unsigned int format_map[XA_LAST_SURFACE_TYPE][2];
77    struct pipe_loader_device *dev;
78    struct pipe_screen *screen;
79    struct xa_context *default_ctx;
80};
81
82struct xa_context {
83    struct xa_tracker *xa;
84    struct pipe_context *pipe;
85
86    struct cso_context *cso;
87    struct xa_shaders *shaders;
88
89    struct pipe_resource *vs_const_buffer;
90    struct pipe_resource *fs_const_buffer;
91
92    float buffer[XA_VB_SIZE];
93    unsigned int buffer_size;
94    struct pipe_vertex_element velems[3];
95
96    /* number of attributes per vertex for the current
97     * draw operation */
98    unsigned int attrs_per_vertex;
99
100    unsigned int fb_width;
101    unsigned int fb_height;
102
103    struct pipe_fence_handle *last_fence;
104    struct xa_surface *src;
105    struct xa_surface *dst;
106    struct pipe_surface *srf;
107
108    /* destination scissor state.. we scissor out untouched parts
109     * of the dst for the benefit of tilers:
110     */
111    struct pipe_scissor_state scissor;
112    int scissor_valid;
113
114    int simple_copy;
115
116    int has_solid_src;
117    int has_solid_mask;
118    float solid_color[4];
119
120    unsigned int num_bound_samplers;
121    struct pipe_sampler_view *bound_sampler_views[XA_MAX_SAMPLERS];
122    const struct xa_composite *comp;
123};
124
125static inline void
126xa_scissor_reset(struct xa_context *ctx)
127{
128    ctx->scissor.maxx = 0;
129    ctx->scissor.maxy = 0;
130    ctx->scissor.minx = ~0;
131    ctx->scissor.miny = ~0;
132    ctx->scissor_valid = FALSE;
133}
134
135static inline void
136xa_scissor_update(struct xa_context *ctx, unsigned minx, unsigned miny,
137		unsigned maxx, unsigned maxy)
138{
139    ctx->scissor.maxx = MAX2(ctx->scissor.maxx, maxx);
140    ctx->scissor.maxy = MAX2(ctx->scissor.maxy, maxy);
141    ctx->scissor.minx = MIN2(ctx->scissor.minx, minx);
142    ctx->scissor.miny = MIN2(ctx->scissor.miny, miny);
143    ctx->scissor_valid = TRUE;
144}
145
146enum xa_vs_traits {
147    VS_COMPOSITE = 1 << 0,
148    VS_MASK = 1 << 1,
149    VS_SRC_SRC = 1 << 2,
150    VS_MASK_SRC = 1 << 3,
151    VS_YUV = 1 << 4,
152};
153
154enum xa_fs_traits {
155    FS_COMPOSITE = 1 << 0,
156    FS_MASK = 1 << 1,
157    FS_SRC_SRC = 1 << 2,
158    FS_MASK_SRC = 1 << 3,
159    FS_YUV = 1 << 4,
160    FS_SRC_REPEAT_NONE = 1 << 5,
161    FS_MASK_REPEAT_NONE = 1 << 6,
162    FS_SRC_SWIZZLE_RGB = 1 << 7,
163    FS_MASK_SWIZZLE_RGB = 1 << 8,
164    FS_SRC_SET_ALPHA = 1 << 9,
165    FS_MASK_SET_ALPHA = 1 << 10,
166    FS_SRC_LUMINANCE = 1 << 11,
167    FS_MASK_LUMINANCE = 1 << 12,
168    FS_DST_LUMINANCE = 1 << 13,
169    FS_CA = 1 << 14,
170};
171
172struct xa_shader {
173    void *fs;
174    void *vs;
175};
176
177struct xa_shaders;
178
179/*
180 * Inline utilities
181 */
182
183static inline int
184xa_min(int a, int b)
185{
186    return ((a <= b) ? a : b);
187}
188
189static inline void
190xa_pixel_to_float4(uint32_t pixel, float *color)
191{
192    uint32_t	    r, g, b, a;
193
194    a = (pixel >> 24) & 0xff;
195    r = (pixel >> 16) & 0xff;
196    g = (pixel >>  8) & 0xff;
197    b = (pixel >>  0) & 0xff;
198    color[0] = ((float)r) / 255.;
199    color[1] = ((float)g) / 255.;
200    color[2] = ((float)b) / 255.;
201    color[3] = ((float)a) / 255.;
202}
203
204static inline void
205xa_pixel_to_float4_a8(uint32_t pixel, float *color)
206{
207    uint32_t a;
208
209    a = (pixel >> 24) & 0xff;
210    color[0] = ((float)a) / 255.;
211    color[1] = ((float)a) / 255.;
212    color[2] = ((float)a) / 255.;
213    color[3] = ((float)a) / 255.;
214}
215
216/*
217 * xa_tgsi.c
218 */
219
220extern struct xa_shaders *xa_shaders_create(struct xa_context *);
221
222void xa_shaders_destroy(struct xa_shaders *shaders);
223
224struct xa_shader xa_shaders_get(struct xa_shaders *shaders,
225				unsigned vs_traits, unsigned fs_traits);
226
227/*
228 * xa_context.c
229 */
230extern void
231xa_context_flush(struct xa_context *ctx);
232
233extern int
234xa_ctx_srf_create(struct xa_context *ctx, struct xa_surface *dst);
235
236extern void
237xa_ctx_srf_destroy(struct xa_context *ctx);
238
239extern void
240xa_ctx_sampler_views_destroy(struct xa_context *ctx);
241
242/*
243 * xa_renderer.c
244 */
245void renderer_set_constants(struct xa_context *r,
246			    int shader_type, const float *params,
247			    int param_bytes);
248
249void renderer_draw_yuv(struct xa_context *r,
250		       float src_x,
251		       float src_y,
252		       float src_w,
253		       float src_h,
254		       int dst_x,
255		       int dst_y, int dst_w, int dst_h,
256		       struct xa_surface *srf[]);
257
258void renderer_bind_destination(struct xa_context *r,
259			       struct pipe_surface *surface);
260
261void renderer_init_state(struct xa_context *r);
262void renderer_copy_prepare(struct xa_context *r,
263			   struct pipe_surface *dst_surface,
264			   struct pipe_resource *src_texture,
265			   const enum xa_formats src_xa_format,
266			   const enum xa_formats dst_xa_format);
267
268void renderer_copy(struct xa_context *r, int dx,
269		   int dy,
270		   int sx,
271		   int sy,
272		   int width, int height, float src_width, float src_height);
273
274void renderer_draw_flush(struct xa_context *r);
275
276void renderer_begin_solid(struct xa_context *r);
277void renderer_solid(struct xa_context *r,
278		    int x0, int y0, int x1, int y1);
279void
280renderer_begin_textures(struct xa_context *r);
281
282void
283renderer_texture(struct xa_context *r,
284		 int *pos,
285		 int width, int height,
286		 const float *src_matrix,
287		 const float *mask_matrix);
288
289#endif
290