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Evas gl_x11: Add ETC2 support to the GL/X11 engine 

This should allow texture upload with ETC2 RGB8 or RGBA8 formats.
Untested for now...

@feature
This commit is contained in:
Jean-Philippe Andre 2014-04-25 14:51:42 +09:00
parent ef3a36626f
commit 86ce491a86
7 changed files with 126 additions and 24 deletions
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5
src/lib/evas/Evas_GL.h
View File

@ -1056,6 +1056,11 @@ typedef signed long int GLsizeiptr; // Changed khronos_ssize_t
/* GL_OES_compressed_ETC1_RGB8_texture */
#define GL_ETC1_RGB8_OES 0x8D64
/* The following are OpenGL ES 3.0 definitions for ETC2
* Note that RGB8_ETC2 is a superset of GL_OES_compressed_ETC1_RGB8_texture */
#define GL_COMPRESSED_RGB8_ETC2 0x8D64
#define GL_COMPRESSED_RGBA8_ETC2_EAC 0x8D64
/* GL_OES_compressed_paletted_texture */
#define GL_PALETTE4_RGB8_OES 0x8B90
#define GL_PALETTE4_RGBA8_OES 0x8B91

8
src/lib/evas/common/evas_image_main.c
View File

@ -126,10 +126,14 @@ _evas_common_rgba_image_surface_size(unsigned int w, unsigned int h, Evas_Colors
case EVAS_COLORSPACE_GRY8: siz = w * h * sizeof(DATA8); break;
case EVAS_COLORSPACE_AGRY88: siz = w * h * sizeof(DATA16); break;
case EVAS_COLORSPACE_ETC1:
case EVAS_COLORSPACE_RGB8_ETC2:
// Need to round width and height independently
w += 2; h += 2; // We do duplicate border in ETC1 to have better rendering on GPU.
siz = (w / 4 + (w % 4 ? 1 : 0)) *
(h / 4 + (h % 4 ? 1 : 0)) * 8;
siz = (w / 4 + (w % 4 ? 1 : 0)) * (h / 4 + (h % 4 ? 1 : 0)) * 8;
break;
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
w += 2; h += 2;
siz = (w / 4 + (w % 4 ? 1 : 0)) * (h / 4 + (h % 4 ? 1 : 0)) * 16;
break;
default:
case EVAS_COLORSPACE_ARGB8888: siz = w * h * sizeof(DATA32); break;

7
src/modules/evas/engines/gl_common/evas_gl_common.h
View File

@ -114,6 +114,12 @@
#ifndef GL_ETC1_RGB8_OES
# define GL_ETC1_RGB8_OES 0x8D64
#endif
#ifndef GL_COMPRESSED_RGB8_ETC2
# define GL_COMPRESSED_RGB8_ETC2 0x9274
#endif
#ifndef GL_COMPRESSED_RGBA8_ETC2_EAC
# define GL_COMPRESSED_RGBA8_ETC2_EAC 0x9278
#endif
#ifndef GL_UNPACK_ROW_LENGTH
@ -363,6 +369,7 @@ struct _Evas_GL_Shared
Eina_Bool bin_program : 1;
Eina_Bool unpack_row_length : 1;
Eina_Bool etc1 : 1;
Eina_Bool etc2 : 1;
// tuning params - per gpu/cpu combo?
#define MAX_CUTOUT 512
#define DEF_CUTOUT 512

35
src/modules/evas/engines/gl_common/evas_gl_context.c
View File

@ -724,6 +724,39 @@ evas_gl_common_context_new(void)
if (atoi(s) == 0) shared->info.bin_program = 0;
}
#ifdef GL_GLES
// Detect ECT2 support. We need both RGB and RGBA formats.
if (glsym_glCompressedTexImage2d)
{
GLint texFormatCnt = 0;
glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &texFormatCnt);
if (texFormatCnt > 0)
{
GLenum *texFormats = malloc(texFormatCnt * sizeof(GLenum));
if (texFormats)
{
int k, cnt = 0;
glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, (GLint *) texFormats);
for (k = 0; k < texFormatCnt && cnt < 2; k++)
{
if (texFormats[k] == GL_COMPRESSED_RGB8_ETC2)
cnt++;
else if (texFormats[k] == GL_COMPRESSED_RGBA8_ETC2_EAC)
cnt++;
}
shared->info.etc2 = (cnt == 2);
free(texFormats);
// FIXME: My NVIDIA driver advertises ETC2 texture formats
// but does not support them. Driver bug? Logic bug?
// This is in #ifdef GL_GLES because Khronos recommends
// use of GL_COMPRESSED_TEXTURE_FORMATS but OpenGL 4.x
// does not.
}
}
}
#endif
if (getenv("EVAS_GL_INFO"))
fprintf(stderr,
"max tex size %ix%i\n"
@ -732,6 +765,7 @@ evas_gl_common_context_new(void)
"rect tex %i\n"
"bgra : %i\n"
"etc1 : %i\n"
"etc2 : %i%s\n"
"max ansiotropic filtering: %3.3f\n"
"egl sec map image: %i\n"
"max vertex count: %i\n"
@ -752,6 +786,7 @@ evas_gl_common_context_new(void)
(int)shared->info.tex_rect,
(int)shared->info.bgra,
(int)shared->info.etc1,
(int)shared->info.etc2, shared->info.etc2 ? " (GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGBA8_ETC2_EAC)" : "",
(double)shared->info.anisotropic,
(int)shared->info.sec_image_map,
(int)shared->info.max_vertex_elements,

40
src/modules/evas/engines/gl_common/evas_gl_image.c
View File

@ -135,6 +135,15 @@ static const Evas_Colorspace known_etc1_cspace[] = {
EVAS_COLORSPACE_ARGB8888
};
static const Evas_Colorspace known_etc2_cspace[] = {
EVAS_COLORSPACE_RGBA8_ETC2_EAC,
EVAS_COLORSPACE_RGB8_ETC2,
EVAS_COLORSPACE_ETC1,
EVAS_COLORSPACE_GRY8,
EVAS_COLORSPACE_AGRY88,
EVAS_COLORSPACE_ARGB8888
};
static Evas_GL_Image *
_evas_gl_common_image(Evas_Engine_GL_Context *gc, RGBA_Image *im_im, Evas_Image_Load_Opts *lo, int *error)
{
@ -187,7 +196,9 @@ _evas_gl_common_image(Evas_Engine_GL_Context *gc, RGBA_Image *im_im, Evas_Image_
const Evas_Colorspace *cspaces;
unsigned int i;
if (gc->shared->info.etc1)
if (gc->shared->info.etc2)
cspaces = known_etc2_cspace;
else if (gc->shared->info.etc1)
cspaces = known_etc1_cspace;
else
cspaces = known_cspace;
@ -332,9 +343,14 @@ evas_gl_common_image_new_from_data(Evas_Engine_GL_Context *gc, unsigned int w, u
case EVAS_COLORSPACE_AGRY88:
break;
case EVAS_COLORSPACE_ETC1:
if (gc->shared->info.etc1) break;
if (gc->shared->info.etc1 && !gc->shared->info.etc2) break;
ERR("We don't know what to do with ETC1 on this hardware. You need to add a software converter here.");
break;
case EVAS_COLORSPACE_RGB8_ETC2:
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
if (gc->shared->info.etc2) break;
ERR("We don't know what to do with ETC2 on this hardware. You need to add a software converter here.");
break;
case EVAS_COLORSPACE_YCBCR422P601_PL:
case EVAS_COLORSPACE_YCBCR422P709_PL:
if (im->tex) evas_gl_common_texture_free(im->tex, EINA_TRUE);
@ -380,9 +396,14 @@ evas_gl_common_image_new_from_copied_data(Evas_Engine_GL_Context *gc, unsigned i
case EVAS_COLORSPACE_AGRY88:
break;
case EVAS_COLORSPACE_ETC1:
if (gc->shared->info.etc1) break;
if (gc->shared->info.etc1 && !gc->shared->info.etc2) break;
ERR("We don't know what to do with ETC1 on this hardware. You need to add a software converter here.");
break;
case EVAS_COLORSPACE_RGB8_ETC2:
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
if (gc->shared->info.etc2) break;
ERR("We don't know what to do with ETC2 on this hardware. You need to add a software converter here.");
break;
case EVAS_COLORSPACE_YCBCR422P601_PL:
case EVAS_COLORSPACE_YCBCR422P709_PL:
if (im->tex) evas_gl_common_texture_free(im->tex, EINA_TRUE);
@ -435,9 +456,14 @@ evas_gl_common_image_new(Evas_Engine_GL_Context *gc, unsigned int w, unsigned in
case EVAS_COLORSPACE_AGRY88:
break;
case EVAS_COLORSPACE_ETC1:
if (gc->shared->info.etc1) break;
if (gc->shared->info.etc1 && !gc->shared->info.etc2) break;
ERR("We don't know what to do with ETC1 on this hardware. You need to add a software converter here.");
break;
case EVAS_COLORSPACE_RGB8_ETC2:
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
if (gc->shared->info.etc2) break;
ERR("We don't know what to do with ETC2 on this hardware. You need to add a software converter here.");
break;
case EVAS_COLORSPACE_YCBCR422P601_PL:
case EVAS_COLORSPACE_YCBCR422P709_PL:
case EVAS_COLORSPACE_YCBCR422601_PL:
@ -574,7 +600,9 @@ evas_gl_common_image_content_hint_set(Evas_GL_Image *im, int hint)
if (im->cs.space != EVAS_COLORSPACE_ARGB8888 &&
im->cs.space != EVAS_COLORSPACE_GRY8 &&
im->cs.space != EVAS_COLORSPACE_AGRY88 &&
im->cs.space != EVAS_COLORSPACE_ETC1) return;
im->cs.space != EVAS_COLORSPACE_ETC1 &&
im->cs.space != EVAS_COLORSPACE_RGB8_ETC2 &&
im->cs.space != EVAS_COLORSPACE_RGBA8_ETC2_EAC) return;
if (im->content_hint == EVAS_IMAGE_CONTENT_HINT_DYNAMIC)
{
if (im->cs.data)
@ -752,6 +780,8 @@ evas_gl_common_image_update(Evas_Engine_GL_Context *gc, Evas_GL_Image *im)
case EVAS_COLORSPACE_GRY8:
case EVAS_COLORSPACE_AGRY88:
case EVAS_COLORSPACE_ETC1:
case EVAS_COLORSPACE_RGB8_ETC2:
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
if ((im->tex) &&
((im->dirty) || (ie->animated.animated) || (ie->flags.updated_data)))
{

49
src/modules/evas/engines/gl_common/evas_gl_texture.c
View File

@ -32,7 +32,12 @@ static const GLenum lum_alpha_ifmt = GL_LUMINANCE_ALPHA;
static const GLenum rgba8_ifmt = GL_RGBA;
static const GLenum rgba8_fmt = GL_BGRA;
/* FIXME: RGB8_ETC2 is a superset of ETC1,
* but is GL_ETC1_RGB8_OES supported whenever GL_COMPRESSED_RGB8_ETC2 is?
*/
static const GLenum etc1_fmt = GL_ETC1_RGB8_OES;
static const GLenum etc2_rgb_fmt = GL_COMPRESSED_RGB8_ETC2;
static const GLenum etc2_rgba_fmt = GL_COMPRESSED_RGBA8_ETC2_EAC;
static struct {
struct {
@ -62,7 +67,11 @@ static const struct {
{ EINA_TRUE, EINA_FALSE, EVAS_COLORSPACE_AGRY88, &lum_alpha_fmt, &lum_alpha_ifmt },
{ EINA_TRUE, EINA_TRUE, EVAS_COLORSPACE_AGRY88, &lum_alpha_fmt, &lum_alpha_ifmt },
{ EINA_FALSE, EINA_FALSE, EVAS_COLORSPACE_ETC1, &etc1_fmt, &etc1_fmt },
{ EINA_FALSE, EINA_TRUE, EVAS_COLORSPACE_ETC1, &etc1_fmt, &etc1_fmt }
{ EINA_FALSE, EINA_TRUE, EVAS_COLORSPACE_ETC1, &etc1_fmt, &etc1_fmt },
{ EINA_FALSE, EINA_FALSE, EVAS_COLORSPACE_RGB8_ETC2, &etc2_rgb_fmt, &etc2_rgb_fmt },
{ EINA_FALSE, EINA_TRUE, EVAS_COLORSPACE_RGB8_ETC2, &etc2_rgb_fmt, &etc2_rgb_fmt },
{ EINA_FALSE, EINA_FALSE, EVAS_COLORSPACE_RGBA8_ETC2_EAC, &etc2_rgba_fmt, &etc2_rgba_fmt },
{ EINA_FALSE, EINA_TRUE, EVAS_COLORSPACE_RGBA8_ETC2_EAC, &etc2_rgba_fmt, &etc2_rgba_fmt }
};
static const GLenum matching_rgba[] = { GL_RGBA4, GL_RGBA8, GL_RGBA12, GL_RGBA16, 0x0 };
@ -395,7 +404,9 @@ _pool_tex_find(Evas_Engine_GL_Context *gc, int w, int h,
atlas_w = gc->shared->info.max_texture_size;
if ((w > gc->shared->info.tune.atlas.max_w) ||
(h > gc->shared->info.tune.atlas.max_h) ||
(intformat == etc1_fmt))
(intformat == etc1_fmt) ||
(intformat == etc2_rgb_fmt) ||
(intformat == etc2_rgba_fmt))
{
pt = _pool_tex_new(gc, w, h, intformat, format);
if (!pt) return NULL;
@ -438,7 +449,7 @@ evas_gl_common_texture_new(Evas_Engine_GL_Context *gc, RGBA_Image *im)
{
Evas_GL_Texture *tex;
GLsizei w, h;
int u = 0, v = 0;
int u = 0, v = 0, yoffset = 0;
int lformat;
tex = evas_gl_common_texture_alloc(gc, im->cache_entry.w, im->cache_entry.h, im->cache_entry.flags.alpha);
@ -448,18 +459,22 @@ evas_gl_common_texture_new(Evas_Engine_GL_Context *gc, RGBA_Image *im)
#define TEX_VREP 1
lformat = _evas_gl_texture_search_format(im->cache_entry.flags.alpha, gc->shared->info.bgra, im->cache_entry.space);
if (im->cache_entry.space == EVAS_COLORSPACE_ETC1)
switch (im->cache_entry.space)
{
// Add border for avoiding artifact
case EVAS_COLORSPACE_ETC1:
case EVAS_COLORSPACE_RGB8_ETC2:
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
// Add border to avoid artifacts
w = im->cache_entry.w + 2;
h = im->cache_entry.h + 2;
yoffset = 1;
// Adjust w and h for etc1 format (multiple of 4 pixels on both axis)
// Adjust w and h for ETC1/2 formats (multiple of 4 pixels on both axes)
w = ((w >> 2) + (w & 0x3 ? 1 : 0)) << 2;
h = ((h >> 2) + (h & 0x3 ? 1 : 0)) << 2;
}
else
{
break;
default:
/* This need to be adjusted if we do something else than strip allocation */
w = im->cache_entry.w + TEX_HREP + 2; /* one pixel stop gap and two pixels for the border */
h = im->cache_entry.h + TEX_VREP; /* only one added border for security down */
@ -477,10 +492,7 @@ evas_gl_common_texture_new(Evas_Engine_GL_Context *gc, RGBA_Image *im)
}
tex->apt->tex = tex;
tex->x = u + 1;
tex->y = v;
if (im->cache_entry.space == EVAS_COLORSPACE_ETC1)
tex->y++;
tex->y = v + yoffset;
tex->pt->references++;
evas_gl_common_texture_update(tex, im);
@ -1072,15 +1084,21 @@ evas_gl_common_texture_update(Evas_GL_Texture *tex, RGBA_Image *im)
case EVAS_COLORSPACE_GRY8: bytes_count = 1; break;
case EVAS_COLORSPACE_AGRY88: bytes_count = 2; break;
case EVAS_COLORSPACE_ETC1:
case EVAS_COLORSPACE_RGB8_ETC2:
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
{
/*
ETC1 can't be scaled down on the fly and interpolated, like it is
ETC1/2 can't be scaled down on the fly and interpolated, like it is
required for preloading, so we don't take that path. Also as the content
already have duplicated border and we use a specific function to
upload the compressed data, there is no need to use the normal path at
all.
*/
GLsizei width, height;
int etc_block_size = 8;
if (im->cache_entry.space == EVAS_COLORSPACE_RGBA8_ETC2_EAC)
etc_block_size = 16;
width = im->cache_entry.w + 2;
height = im->cache_entry.h + 2;
@ -1092,7 +1110,8 @@ evas_gl_common_texture_update(Evas_GL_Texture *tex, RGBA_Image *im)
glCompressedTexImage2D(GL_TEXTURE_2D, 0, tex->pt->format,
width, height, 0,
((width * height) >> 4) * 8, im->image.data);
((width * height) >> 4) * etc_block_size,
im->image.data);
GLERR(__FUNCTION__, __FILE__, __LINE__, "");
if (tex->pt->texture != tex->gc->pipe[0].shader.cur_tex)

6
src/modules/evas/engines/gl_x11/evas_engine.c
View File

@ -2870,8 +2870,10 @@ eng_image_data_get(void *data, void *image, int to_write, DATA32 **image_data, i
*image_data = im->cs.data;
break;
case EVAS_COLORSPACE_ETC1:
ERR("This image is encoded in ETC1, not returning any data");
*err = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
case EVAS_COLORSPACE_RGB8_ETC2:
case EVAS_COLORSPACE_RGBA8_ETC2_EAC:
ERR("This image is encoded in ETC1 or ETC2, not returning any data");
error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
*image_data = NULL;
break;
default: