api_images.c revision cb06f180e3a5829df1d9b60f95db7417fbcd9002 
1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.  All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27#include "image.h"
28
29#include "VG/openvg.h"
30
31#include "vg_context.h"
32#include "vg_translate.h"
33#include "api_consts.h"
34#include "api.h"
35#include "handle.h"
36
37#include "pipe/p_context.h"
38#include "pipe/p_screen.h"
39#include "util/u_inlines.h"
40#include "util/u_tile.h"
41#include "util/u_math.h"
42
43static INLINE VGboolean supported_image_format(VGImageFormat format)
44{
45   switch(format) {
46   case VG_sRGBX_8888:
47   case VG_sRGBA_8888:
48   case VG_sRGBA_8888_PRE:
49   case VG_sRGB_565:
50   case VG_sRGBA_5551:
51   case VG_sRGBA_4444:
52   case VG_sL_8:
53   case VG_lRGBX_8888:
54   case VG_lRGBA_8888:
55   case VG_lRGBA_8888_PRE:
56   case VG_lL_8:
57   case VG_A_8:
58   case VG_BW_1:
59#ifdef OPENVG_VERSION_1_1
60   case VG_A_1:
61   case VG_A_4:
62#endif
63   case VG_sXRGB_8888:
64   case VG_sARGB_8888:
65   case VG_sARGB_8888_PRE:
66   case VG_sARGB_1555:
67   case VG_sARGB_4444:
68   case VG_lXRGB_8888:
69   case VG_lARGB_8888:
70   case VG_lARGB_8888_PRE:
71   case VG_sBGRX_8888:
72   case VG_sBGRA_8888:
73   case VG_sBGRA_8888_PRE:
74   case VG_sBGR_565:
75   case VG_sBGRA_5551:
76   case VG_sBGRA_4444:
77   case VG_lBGRX_8888:
78   case VG_lBGRA_8888:
79   case VG_lBGRA_8888_PRE:
80   case VG_sXBGR_8888:
81   case VG_sABGR_8888:
82   case VG_sABGR_8888_PRE:
83   case VG_sABGR_1555:
84   case VG_sABGR_4444:
85   case VG_lXBGR_8888:
86   case VG_lABGR_8888:
87   case VG_lABGR_8888_PRE:
88      return VG_TRUE;
89   default:
90      return VG_FALSE;
91   }
92   return VG_FALSE;
93}
94
95VGImage vegaCreateImage(VGImageFormat format,
96                        VGint width, VGint height,
97                        VGbitfield allowedQuality)
98{
99   struct vg_context *ctx = vg_current_context();
100
101   if (!supported_image_format(format)) {
102      vg_set_error(ctx, VG_UNSUPPORTED_IMAGE_FORMAT_ERROR);
103      return VG_INVALID_HANDLE;
104   }
105   if (width <= 0 || height <= 0) {
106      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
107      return VG_INVALID_HANDLE;
108   }
109   if (width > vegaGeti(VG_MAX_IMAGE_WIDTH) ||
110       height > vegaGeti(VG_MAX_IMAGE_HEIGHT)) {
111      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
112      return VG_INVALID_HANDLE;
113   }
114   if (width * height > vegaGeti(VG_MAX_IMAGE_PIXELS)) {
115      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
116      return VG_INVALID_HANDLE;
117   }
118
119   if (!(allowedQuality & ((VG_IMAGE_QUALITY_NONANTIALIASED |
120                           VG_IMAGE_QUALITY_FASTER |
121                           VG_IMAGE_QUALITY_BETTER)))) {
122      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
123      return VG_INVALID_HANDLE;
124   }
125
126   return image_to_handle(image_create(format, width, height));
127}
128
129void vegaDestroyImage(VGImage image)
130{
131   struct vg_context *ctx = vg_current_context();
132   struct vg_image *img = handle_to_image(image);
133
134   if (image == VG_INVALID_HANDLE) {
135      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
136      return;
137   }
138   if (!vg_object_is_valid(image, VG_OBJECT_IMAGE)) {
139      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
140      return;
141   }
142   image_destroy(img);
143}
144
145void vegaClearImage(VGImage image,
146                    VGint x, VGint y,
147                    VGint width, VGint height)
148{
149   struct vg_context *ctx = vg_current_context();
150   struct vg_image *img;
151
152   if (image == VG_INVALID_HANDLE) {
153      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
154      return;
155   }
156   if (width <= 0 || height <= 0) {
157      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
158      return;
159   }
160
161   img = handle_to_image(image);
162
163   if (x + width < 0 || y + height < 0)
164      return;
165
166   image_clear(img, x, y, width, height);
167
168}
169
170void vegaImageSubData(VGImage image,
171                      const void * data,
172                      VGint dataStride,
173                      VGImageFormat dataFormat,
174                      VGint x, VGint y,
175                      VGint width, VGint height)
176{
177   struct vg_context *ctx = vg_current_context();
178   struct vg_image *img;
179
180   if (image == VG_INVALID_HANDLE) {
181      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
182      return;
183   }
184   if (!supported_image_format(dataFormat)) {
185      vg_set_error(ctx, VG_UNSUPPORTED_IMAGE_FORMAT_ERROR);
186      return;
187   }
188   if (width <= 0 || height <= 0 || !data || !is_aligned(data)) {
189      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
190      return;
191   }
192
193   img = handle_to_image(image);
194   image_sub_data(img, data, dataStride, dataFormat,
195                  x, y, width, height);
196}
197
198void vegaGetImageSubData(VGImage image,
199                         void * data,
200                         VGint dataStride,
201                         VGImageFormat dataFormat,
202                         VGint x, VGint y,
203                         VGint width, VGint height)
204{
205   struct vg_context *ctx = vg_current_context();
206   struct vg_image *img;
207
208   if (image == VG_INVALID_HANDLE) {
209      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
210      return;
211   }
212   if (!supported_image_format(dataFormat)) {
213      vg_set_error(ctx, VG_UNSUPPORTED_IMAGE_FORMAT_ERROR);
214      return;
215   }
216   if (width <= 0 || height <= 0 || !data || !is_aligned(data)) {
217      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
218      return;
219   }
220   img = handle_to_image(image);
221   image_get_sub_data(img, data, dataStride, dataFormat,
222                      x, y, width, height);
223}
224
225VGImage vegaChildImage(VGImage parent,
226                       VGint x, VGint y,
227                       VGint width, VGint height)
228{
229   struct vg_context *ctx = vg_current_context();
230   struct vg_image *p;
231
232   if (parent == VG_INVALID_HANDLE ||
233       !vg_context_is_object_valid(ctx, VG_OBJECT_IMAGE, parent) ||
234       !vg_object_is_valid(parent, VG_OBJECT_IMAGE)) {
235      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
236      return VG_INVALID_HANDLE;
237   }
238   if (width <= 0 || height <= 0 || x < 0 || y < 0) {
239      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
240      return VG_INVALID_HANDLE;
241   }
242   p = handle_to_image(parent);
243   if (x > p->width  || y > p->height) {
244      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
245      return VG_INVALID_HANDLE;
246   }
247   if (x + width > p->width  || y + height > p->height) {
248      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
249      return VG_INVALID_HANDLE;
250   }
251
252   return image_to_handle(image_child_image(p, x, y, width, height));
253}
254
255VGImage vegaGetParent(VGImage image)
256{
257   struct vg_context *ctx = vg_current_context();
258   struct vg_image *img;
259
260   if (image == VG_INVALID_HANDLE) {
261      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
262      return VG_INVALID_HANDLE;
263   }
264
265   img = handle_to_image(image);
266   if (img->parent)
267      return image_to_handle(img->parent);
268   else
269      return image;
270}
271
272void vegaCopyImage(VGImage dst, VGint dx, VGint dy,
273                   VGImage src, VGint sx, VGint sy,
274                   VGint width, VGint height,
275                   VGboolean dither)
276{
277   struct vg_context *ctx = vg_current_context();
278
279   if (src == VG_INVALID_HANDLE || dst == VG_INVALID_HANDLE) {
280      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
281      return;
282   }
283
284   if (width <= 0 || height <= 0) {
285      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
286      return;
287   }
288   vg_validate_state(ctx);
289   image_copy(handle_to_image(dst), dx, dy,
290              handle_to_image(src), sx, sy,
291              width, height, dither);
292}
293
294void vegaDrawImage(VGImage image)
295{
296   struct vg_context *ctx = vg_current_context();
297
298   if (!ctx)
299      return;
300
301   if (image == VG_INVALID_HANDLE) {
302      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
303      return;
304   }
305
306   vg_validate_state(ctx);
307   image_draw(handle_to_image(image),
308         &ctx->state.vg.image_user_to_surface_matrix);
309}
310
311void vegaSetPixels(VGint dx, VGint dy,
312                   VGImage src, VGint sx, VGint sy,
313                   VGint width, VGint height)
314{
315   struct vg_context *ctx = vg_current_context();
316
317   vg_validate_state(ctx);
318
319   if (src == VG_INVALID_HANDLE) {
320      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
321      return;
322   }
323   if (width <= 0 || height <= 0) {
324      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
325      return;
326   }
327   image_set_pixels(dx, dy, handle_to_image(src), sx, sy, width,
328                    height);
329}
330
331void vegaGetPixels(VGImage dst, VGint dx, VGint dy,
332                   VGint sx, VGint sy,
333                   VGint width, VGint height)
334{
335   struct vg_context *ctx = vg_current_context();
336   struct vg_image *img;
337
338   if (dst == VG_INVALID_HANDLE) {
339      vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
340      return;
341   }
342   if (width <= 0 || height <= 0) {
343      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
344      return;
345   }
346
347   img = handle_to_image(dst);
348
349   image_get_pixels(img, dx, dy,
350                    sx, sy, width, height);
351}
352
353void vegaWritePixels(const void * data, VGint dataStride,
354                     VGImageFormat dataFormat,
355                     VGint dx, VGint dy,
356                     VGint width, VGint height)
357{
358   struct vg_context *ctx = vg_current_context();
359   struct pipe_context *pipe = ctx->pipe;
360
361   if (!supported_image_format(dataFormat)) {
362      vg_set_error(ctx, VG_UNSUPPORTED_IMAGE_FORMAT_ERROR);
363      return;
364   }
365   if (!data || !is_aligned(data)) {
366      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
367      return;
368   }
369   if (width <= 0 || height <= 0) {
370      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
371      return;
372   }
373
374   vg_validate_state(ctx);
375   {
376      struct vg_image *img = image_create(dataFormat, width, height);
377      image_sub_data(img, data, dataStride, dataFormat, 0, 0,
378                     width, height);
379#if 0
380      struct matrix *matrix = &ctx->state.vg.image_user_to_surface_matrix;
381      matrix_translate(matrix, dx, dy);
382      image_draw(img);
383      matrix_translate(matrix, -dx, -dy);
384#else
385      /* this looks like a better approach */
386      image_set_pixels(dx, dy, img, 0, 0, width, height);
387#endif
388      image_destroy(img);
389   }
390}
391
392void vegaReadPixels(void * data, VGint dataStride,
393                    VGImageFormat dataFormat,
394                    VGint sx, VGint sy,
395                    VGint width, VGint height)
396{
397   struct vg_context *ctx = vg_current_context();
398   struct pipe_context *pipe = ctx->pipe;
399
400   struct st_framebuffer *stfb = ctx->draw_buffer;
401   struct st_renderbuffer *strb = stfb->strb;
402
403   VGfloat temp[VEGA_MAX_IMAGE_WIDTH][4];
404   VGfloat *df = (VGfloat*)temp;
405   VGint i;
406   VGubyte *dst = (VGubyte *)data;
407   VGint xoffset = 0, yoffset = 0;
408
409   if (!supported_image_format(dataFormat)) {
410      vg_set_error(ctx, VG_UNSUPPORTED_IMAGE_FORMAT_ERROR);
411      return;
412   }
413   if (!data || !is_aligned(data)) {
414      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
415      return;
416   }
417   if (width <= 0 || height <= 0) {
418      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
419      return;
420   }
421
422   if (sx < 0) {
423      xoffset = -sx;
424      xoffset *= _vega_size_for_format(dataFormat);
425      width += sx;
426      sx = 0;
427   }
428   if (sy < 0) {
429      yoffset = -sy;
430      yoffset *= dataStride;
431      height += sy;
432      sy = 0;
433   }
434
435   if (sx + width > stfb->width || sy + height > stfb->height) {
436      width = stfb->width - sx;
437      height = stfb->height - sy;
438      /* nothing to read */
439      if (width <= 0 || height <= 0)
440         return;
441   }
442
443   {
444      VGint y = (stfb->height - sy) - 1, yStep = -1;
445      struct pipe_transfer *transfer;
446
447      transfer = pipe_get_transfer(pipe, strb->texture,  0, 0,
448                                   PIPE_TRANSFER_READ,
449                                   0, 0, sx + width, stfb->height - sy);
450
451      /* Do a row at a time to flip image data vertically */
452      for (i = 0; i < height; i++) {
453#if 0
454         debug_printf("%d-%d  == %d\n", sy, height, y);
455#endif
456         pipe_get_tile_rgba(pipe, transfer, sx, y, width, 1, df);
457         y += yStep;
458         _vega_pack_rgba_span_float(ctx, width, temp, dataFormat,
459                                    dst + yoffset + xoffset);
460         dst += dataStride;
461      }
462
463      pipe->transfer_destroy(pipe, transfer);
464   }
465}
466
467void vegaCopyPixels(VGint dx, VGint dy,
468                    VGint sx, VGint sy,
469                    VGint width, VGint height)
470{
471   struct vg_context *ctx = vg_current_context();
472   struct st_framebuffer *stfb = ctx->draw_buffer;
473   struct st_renderbuffer *strb = stfb->strb;
474
475   if (width <= 0 || height <= 0) {
476      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
477      return;
478   }
479
480   /* do nothing if we copy from outside the fb */
481   if (dx >= (VGint)stfb->width || dy >= (VGint)stfb->height ||
482       sx >= (VGint)stfb->width || sy >= (VGint)stfb->height)
483      return;
484
485   vg_validate_state(ctx);
486   /* make sure rendering has completed */
487   vegaFinish();
488
489   vg_copy_surface(ctx, strb->surface, dx, dy,
490                   strb->surface, sx, sy, width, height);
491}
492