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