src/gallium/frontends/xa/xa_priv.h

   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
  53 struct xa_fence {
  54     struct pipe_fence_handle *pipe_fence;
  55     struct xa_tracker *xa;
  56 };
  57
  58 struct xa_format_descriptor {
  59     enum pipe_format format;
  60     enum xa_formats xa_format;
  61 };
  62
  63 struct 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
  74 struct 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
  82 struct 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
 125 static inline void
 126 xa_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
 135 static inline void
 136 xa_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
 146 enum 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
 154 enum 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
 172 struct xa_shader {
 173     void *fs;
 174     void *vs;
 175 };
 176
 177 struct xa_shaders;
 178
 179 /*
 180  * Inline utilities
 181  */
 182
 183 static inline int
 184 xa_min(int a, int b)
 185 {
 186     return ((a <= b) ? a : b);
 187 }
 188
 189 static inline void
 190 xa_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
 204 static inline void
 205 xa_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
 220 extern struct xa_shaders *xa_shaders_create(struct xa_context *);
 221
 222 void xa_shaders_destroy(struct xa_shaders *shaders);
 223
 224 struct xa_shader xa_shaders_get(struct xa_shaders *shaders,
 225                                 unsigned vs_traits, unsigned fs_traits);
 226
 227 /*
 228  * xa_context.c
 229  */
 230 extern void
 231 xa_context_flush(struct xa_context *ctx);
 232
 233 extern int
 234 xa_ctx_srf_create(struct xa_context *ctx, struct xa_surface *dst);
 235
 236 extern void
 237 xa_ctx_srf_destroy(struct xa_context *ctx);
 238
 239 extern void
 240 xa_ctx_sampler_views_destroy(struct xa_context *ctx);
 241
 242 /*
 243  * xa_renderer.c
 244  */
 245 void renderer_set_constants(struct xa_context *r,
 246                             int shader_type, const float *params,
 247                             int param_bytes);
 248
 249 void 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
 258 void renderer_bind_destination(struct xa_context *r,
 259                                struct pipe_surface *surface);
 260
 261 void renderer_init_state(struct xa_context *r);
 262 void 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
 268 void 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
 274 void renderer_draw_flush(struct xa_context *r);
 275
 276 void renderer_begin_solid(struct xa_context *r);
 277 void renderer_solid(struct xa_context *r,
 278                     int x0, int y0, int x1, int y1);
 279 void
 280 renderer_begin_textures(struct xa_context *r);
 281
 282 void
 283 renderer_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