1 /**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "main/mtypes.h"
29 #include "main/enums.h"
30 #include "main/image.h"
31 #include "main/teximage.h"
32 #include "main/texstate.h"
33 #include "main/fbobject.h"
34
35 #include "drivers/common/meta.h"
36
37 #include "intel_screen.h"
38 #include "intel_context.h"
39 #include "intel_mipmap_tree.h"
40 #include "intel_regions.h"
41 #include "intel_fbo.h"
42 #include "intel_tex.h"
43 #include "intel_blit.h"
44
45 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
46
47
48 bool
intel_copy_texsubimage(struct intel_context * intel,struct intel_texture_image * intelImage,GLint dstx,GLint dsty,struct intel_renderbuffer * irb,GLint x,GLint y,GLsizei width,GLsizei height)49 intel_copy_texsubimage(struct intel_context *intel,
50 struct intel_texture_image *intelImage,
51 GLint dstx, GLint dsty,
52 struct intel_renderbuffer *irb,
53 GLint x, GLint y, GLsizei width, GLsizei height)
54 {
55 struct gl_context *ctx = &intel->ctx;
56 struct intel_region *region;
57 const GLenum internalFormat = intelImage->base.Base.InternalFormat;
58 bool copy_supported = false;
59 bool copy_supported_with_alpha_override = false;
60
61 intel_prepare_render(intel);
62
63 if (!intelImage->mt || !irb || !irb->mt) {
64 if (unlikely(INTEL_DEBUG & DEBUG_PERF))
65 fprintf(stderr, "%s fail %p %p (0x%08x)\n",
66 __FUNCTION__, intelImage->mt, irb, internalFormat);
67 return false;
68 } else {
69 region = irb->mt->region;
70 assert(region);
71 }
72
73 copy_supported = intelImage->base.Base.TexFormat == intel_rb_format(irb);
74
75 /* Converting ARGB8888 to XRGB8888 is trivial: ignore the alpha bits */
76 if (intel_rb_format(irb) == MESA_FORMAT_ARGB8888 &&
77 intelImage->base.Base.TexFormat == MESA_FORMAT_XRGB8888) {
78 copy_supported = true;
79 }
80
81 /* Converting XRGB8888 to ARGB8888 requires setting the alpha bits to 1.0 */
82 if (intel_rb_format(irb) == MESA_FORMAT_XRGB8888 &&
83 intelImage->base.Base.TexFormat == MESA_FORMAT_ARGB8888) {
84 copy_supported_with_alpha_override = true;
85 }
86
87 if (!copy_supported && !copy_supported_with_alpha_override) {
88 if (unlikely(INTEL_DEBUG & DEBUG_PERF))
89 fprintf(stderr, "%s mismatched formats %s, %s\n",
90 __FUNCTION__,
91 _mesa_get_format_name(intelImage->base.Base.TexFormat),
92 _mesa_get_format_name(intel_rb_format(irb)));
93 return false;
94 }
95
96 {
97 GLuint image_x, image_y;
98 GLshort src_pitch;
99
100 /* get dest x/y in destination texture */
101 intel_miptree_get_image_offset(intelImage->mt,
102 intelImage->base.Base.Level,
103 intelImage->base.Base.Face,
104 0,
105 &image_x, &image_y);
106
107 /* The blitter can't handle Y-tiled buffers. */
108 if (intelImage->mt->region->tiling == I915_TILING_Y) {
109 return false;
110 }
111
112 if (_mesa_is_winsys_fbo(ctx->ReadBuffer)) {
113 /* Flip vertical orientation for system framebuffers */
114 y = ctx->ReadBuffer->Height - (y + height);
115 src_pitch = -region->pitch;
116 } else {
117 /* reading from a FBO, y is already oriented the way we like */
118 src_pitch = region->pitch;
119 }
120
121 /* blit from src buffer to texture */
122 if (!intelEmitCopyBlit(intel,
123 intelImage->mt->cpp,
124 src_pitch,
125 region->bo,
126 0,
127 region->tiling,
128 intelImage->mt->region->pitch,
129 intelImage->mt->region->bo,
130 0,
131 intelImage->mt->region->tiling,
132 irb->draw_x + x, irb->draw_y + y,
133 image_x + dstx, image_y + dsty,
134 width, height,
135 GL_COPY)) {
136 return false;
137 }
138 }
139
140 if (copy_supported_with_alpha_override)
141 intel_set_teximage_alpha_to_one(ctx, intelImage);
142
143 return true;
144 }
145
146
147 static void
intelCopyTexSubImage(struct gl_context * ctx,GLuint dims,struct gl_texture_image * texImage,GLint xoffset,GLint yoffset,GLint zoffset,struct gl_renderbuffer * rb,GLint x,GLint y,GLsizei width,GLsizei height)148 intelCopyTexSubImage(struct gl_context *ctx, GLuint dims,
149 struct gl_texture_image *texImage,
150 GLint xoffset, GLint yoffset, GLint zoffset,
151 struct gl_renderbuffer *rb,
152 GLint x, GLint y,
153 GLsizei width, GLsizei height)
154 {
155 if (dims == 3 || !intel_copy_texsubimage(intel_context(ctx),
156 intel_texture_image(texImage),
157 xoffset, yoffset,
158 intel_renderbuffer(rb), x, y, width, height)) {
159 fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
160 _mesa_meta_CopyTexSubImage(ctx, dims, texImage,
161 xoffset, yoffset, zoffset,
162 rb, x, y, width, height);
163 }
164 }
165
166
167 void
intelInitTextureCopyImageFuncs(struct dd_function_table * functions)168 intelInitTextureCopyImageFuncs(struct dd_function_table *functions)
169 {
170 functions->CopyTexSubImage = intelCopyTexSubImage;
171 }
172