1 /*
2 * Copyright 2012-2014, Haiku, Inc. All Rights Reserved.
3 * Distributed under the terms of the MIT License.
4 *
5 * Authors:
6 * Artur Wyszynski, harakash@gmail.com
7 * Alexander von Gluck IV, kallisti5@unixzen.com
8 */
9
10 #include "hgl_context.h"
11
12 #include <stdio.h>
13
14 #include "pipe/p_format.h"
15 #include "util/u_atomic.h"
16 #include "util/format/u_format.h"
17 #include "util/u_memory.h"
18 #include "util/u_inlines.h"
19 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
20
21 #include "GLView.h"
22
23
24 #ifdef DEBUG
25 # define TRACE(x...) printf("hgl:frontend: " x)
26 # define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
27 #else
28 # define TRACE(x...)
29 # define CALLED()
30 #endif
31 #define ERROR(x...) printf("hgl:frontend: " x)
32
33
34 // Perform a safe void to hgl_context cast
35 static inline struct hgl_context*
hgl_st_context(struct st_context_iface * stctxi)36 hgl_st_context(struct st_context_iface *stctxi)
37 {
38 struct hgl_context* context;
39 assert(stctxi);
40 context = (struct hgl_context*)stctxi->st_manager_private;
41 assert(context);
42 return context;
43 }
44
45
46 // Perform a safe void to hgl_buffer cast
47 //static inline struct hgl_buffer*
48 struct hgl_buffer*
hgl_st_framebuffer(struct st_framebuffer_iface * stfbi)49 hgl_st_framebuffer(struct st_framebuffer_iface *stfbi)
50 {
51 struct hgl_buffer* buffer;
52 assert(stfbi);
53 buffer = (struct hgl_buffer*)stfbi->st_manager_private;
54 assert(buffer);
55 return buffer;
56 }
57
58
59 static bool
hgl_st_framebuffer_flush_front(struct st_context_iface * stctxi,struct st_framebuffer_iface * stfbi,enum st_attachment_type statt)60 hgl_st_framebuffer_flush_front(struct st_context_iface *stctxi,
61 struct st_framebuffer_iface* stfbi, enum st_attachment_type statt)
62 {
63 CALLED();
64
65 //struct hgl_context* context = hgl_st_context(stctxi);
66 // struct hgl_buffer* buffer = hgl_st_context(stfbi);
67 struct hgl_buffer* buffer = hgl_st_framebuffer(stfbi);
68 //buffer->surface
69
70 #if 0
71 struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
72 mtx_lock(&stwfb->fb->mutex);
73
74 struct pipe_resource* resource = textures[statt];
75 if (resource)
76 stw_framebuffer_present_locked(...);
77 #endif
78
79 return true;
80 }
81
82
83 static bool
hgl_st_framebuffer_validate_textures(struct st_framebuffer_iface * stfbi,unsigned width,unsigned height,unsigned mask)84 hgl_st_framebuffer_validate_textures(struct st_framebuffer_iface *stfbi,
85 unsigned width, unsigned height, unsigned mask)
86 {
87 struct hgl_buffer* buffer;
88 enum st_attachment_type i;
89 struct pipe_resource templat;
90
91 CALLED();
92
93 buffer = hgl_st_framebuffer(stfbi);
94
95 if (buffer->width != width || buffer->height != height) {
96 for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
97 pipe_resource_reference(&buffer->textures[i], NULL);
98 }
99
100 memset(&templat, 0, sizeof(templat));
101 templat.target = buffer->target;
102 templat.width0 = width;
103 templat.height0 = height;
104 templat.depth0 = 1;
105 templat.array_size = 1;
106 templat.last_level = 0;
107
108 for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
109 enum pipe_format format;
110 unsigned bind;
111
112 switch (i) {
113 case ST_ATTACHMENT_FRONT_LEFT:
114 case ST_ATTACHMENT_BACK_LEFT:
115 case ST_ATTACHMENT_FRONT_RIGHT:
116 case ST_ATTACHMENT_BACK_RIGHT:
117 format = buffer->visual->color_format;
118 bind = PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_RENDER_TARGET;
119 break;
120 case ST_ATTACHMENT_DEPTH_STENCIL:
121 format = buffer->visual->depth_stencil_format;
122 bind = PIPE_BIND_DEPTH_STENCIL;
123 break;
124 default:
125 format = PIPE_FORMAT_NONE;
126 bind = 0;
127 break;
128 }
129
130 if (format != PIPE_FORMAT_NONE) {
131 templat.format = format;
132 templat.bind = bind;
133 buffer->textures[i] = buffer->screen->resource_create(buffer->screen,
134 &templat);
135 if (!buffer->textures[i])
136 return FALSE;
137 }
138 }
139
140 buffer->width = width;
141 buffer->height = height;
142 buffer->mask = mask;
143
144 return true;
145 }
146
147
148 /**
149 * Called by the st manager to validate the framebuffer (allocate
150 * its resources).
151 */
152 static bool
hgl_st_framebuffer_validate(struct st_context_iface * stctxi,struct st_framebuffer_iface * stfbi,const enum st_attachment_type * statts,unsigned count,struct pipe_resource ** out)153 hgl_st_framebuffer_validate(struct st_context_iface *stctxi,
154 struct st_framebuffer_iface *stfbi, const enum st_attachment_type *statts,
155 unsigned count, struct pipe_resource **out)
156 {
157 struct hgl_context* context;
158 struct hgl_buffer* buffer;
159 unsigned stAttachmentMask, newMask;
160 unsigned i;
161 bool resized;
162
163 CALLED();
164
165 context = hgl_st_context(stctxi);
166 buffer = hgl_st_framebuffer(stfbi);
167
168 //int32 width = 0;
169 //int32 height = 0;
170 //get_bitmap_size(context->bitmap, &width, &height);
171
172 // Build mask of current attachments
173 stAttachmentMask = 0;
174 for (i = 0; i < count; i++)
175 stAttachmentMask |= 1 << statts[i];
176
177 newMask = stAttachmentMask & ~buffer->mask;
178
179 resized = (buffer->width != context->width)
180 || (buffer->height != context->height);
181
182 if (resized || newMask) {
183 boolean ret;
184 TRACE("%s: resize event. old: %d x %d; new: %d x %d\n", __func__,
185 buffer->width, buffer->height, context->width, context->height);
186
187 ret = hgl_st_framebuffer_validate_textures(stfbi,
188 context->width, context->height, stAttachmentMask);
189
190 if (!ret)
191 return ret;
192
193 // TODO: Simply update attachments
194 //if (!resized) {
195
196 //}
197 }
198
199 for (i = 0; i < count; i++)
200 pipe_resource_reference(&out[i], buffer->textures[statts[i]]);
201
202 return true;
203 }
204
205
206 static int
hgl_st_manager_get_param(struct st_manager * smapi,enum st_manager_param param)207 hgl_st_manager_get_param(struct st_manager *smapi, enum st_manager_param param)
208 {
209 CALLED();
210
211 switch (param) {
212 case ST_MANAGER_BROKEN_INVALIDATE:
213 return 1;
214 }
215
216 return 0;
217 }
218
219
220 /**
221 * Create new framebuffer
222 */
223 struct hgl_buffer *
hgl_create_st_framebuffer(struct hgl_context * context)224 hgl_create_st_framebuffer(struct hgl_context* context)
225 {
226 struct hgl_buffer *buffer;
227 CALLED();
228
229 // Our requires before creating a framebuffer
230 assert(context);
231 assert(context->screen);
232 assert(context->stVisual);
233
234 buffer = CALLOC_STRUCT(hgl_buffer);
235 assert(buffer);
236
237 // calloc and configure our st_framebuffer interface
238 buffer->stfbi = CALLOC_STRUCT(st_framebuffer_iface);
239 assert(buffer->stfbi);
240
241 // Prepare our buffer
242 buffer->visual = context->stVisual;
243 buffer->screen = context->screen;
244
245 if (context->screen->get_param(buffer->screen, PIPE_CAP_NPOT_TEXTURES))
246 buffer->target = PIPE_TEXTURE_2D;
247 else
248 buffer->target = PIPE_TEXTURE_RECT;
249
250 // Prepare our frontend interface
251 buffer->stfbi->flush_front = hgl_st_framebuffer_flush_front;
252 buffer->stfbi->validate = hgl_st_framebuffer_validate;
253 buffer->stfbi->visual = context->stVisual;
254
255 p_atomic_set(&buffer->stfbi->stamp, 1);
256 buffer->stfbi->st_manager_private = (void*)buffer;
257
258 return buffer;
259 }
260
261
262 struct st_api*
hgl_create_st_api()263 hgl_create_st_api()
264 {
265 CALLED();
266 return st_gl_api_create();
267 }
268
269
270 struct st_manager *
hgl_create_st_manager(struct hgl_context * context)271 hgl_create_st_manager(struct hgl_context* context)
272 {
273 struct st_manager* manager;
274
275 CALLED();
276
277 // Required things
278 assert(context);
279 assert(context->screen);
280
281 manager = CALLOC_STRUCT(st_manager);
282 assert(manager);
283
284 //manager->display = dpy;
285 manager->screen = context->screen;
286 manager->get_param = hgl_st_manager_get_param;
287 manager->st_manager_private = (void *)context;
288
289 return manager;
290 }
291
292
293 void
hgl_destroy_st_manager(struct st_manager * manager)294 hgl_destroy_st_manager(struct st_manager *manager)
295 {
296 CALLED();
297
298 FREE(manager);
299 }
300
301
302 struct st_visual*
hgl_create_st_visual(ulong options)303 hgl_create_st_visual(ulong options)
304 {
305 struct st_visual* visual;
306
307 CALLED();
308
309 visual = CALLOC_STRUCT(st_visual);
310 assert(visual);
311
312 // Determine color format
313 if ((options & BGL_INDEX) != 0) {
314 // Index color
315 visual->color_format = PIPE_FORMAT_B5G6R5_UNORM;
316 // TODO: Indexed color depth buffer?
317 visual->depth_stencil_format = PIPE_FORMAT_NONE;
318 } else {
319 // RGB color
320 visual->color_format = (options & BGL_ALPHA)
321 ? PIPE_FORMAT_BGRA8888_UNORM : PIPE_FORMAT_BGRX8888_UNORM;
322 // TODO: Determine additional stencil formats
323 visual->depth_stencil_format = (options & BGL_DEPTH)
324 ? PIPE_FORMAT_Z24_UNORM_S8_UINT : PIPE_FORMAT_NONE;
325 }
326
327 visual->accum_format = (options & BGL_ACCUM)
328 ? PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
329
330 visual->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
331 visual->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
332
333 if ((options & BGL_DOUBLE) != 0) {
334 visual->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
335 visual->render_buffer = ST_ATTACHMENT_BACK_LEFT;
336 }
337
338 #if 0
339 if ((options & BGL_STEREO) != 0) {
340 visual->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
341 if ((options & BGL_DOUBLE) != 0)
342 visual->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
343 }
344 #endif
345
346 if ((options & BGL_DEPTH) || (options & BGL_STENCIL))
347 visual->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
348
349 TRACE("%s: Visual color format: %s\n", __func__,
350 util_format_name(visual->color_format));
351
352 return visual;
353 }
354
355
356 void
hgl_destroy_st_visual(struct st_visual * visual)357 hgl_destroy_st_visual(struct st_visual* visual)
358 {
359 CALLED();
360
361 FREE(visual);
362 }
363