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[875/906] upload: support for arbitrary strides

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Using GL_UNPACK_ALIGNMENT for GLES2 and GL_UNPACK_ROW_LENGTH for everything else
This commit is contained in:
Matthew Waters 2014-01-31 06:53:54 +11:00 committed by Tim-Philipp Müller
parent 8daa7693cf
commit d84bb0b3b2
1 changed files with 163 additions and 175 deletions
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338
gst-libs/gst/gl/gstglupload.c
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@ -197,8 +197,7 @@ static const gchar *frag_YUY2_UYVY_opengl =
" float fx, fy, y, u, v, r, g, b;\n"
" vec3 yuv;\n"
" yuv.x = texture2D(Ytex, gl_TexCoord[0].xy * tex_scale0).%c;\n"
" yuv.y = texture2D(UVtex, gl_TexCoord[0].xy * tex_scale1).%c;\n"
" yuv.z = texture2D(UVtex, gl_TexCoord[0].xy * tex_scale2).%c;\n"
" yuv.yz = texture2D(UVtex, gl_TexCoord[0].xy * tex_scale1).%c%c;\n"
" yuv += offset;\n"
" r = dot(yuv, rcoeff);\n"
" g = dot(yuv, gcoeff);\n"
@ -220,7 +219,7 @@ static const char *frag_REORDER_gles2 = {
"uniform vec2 tex_scale2;\n"
"void main(void)\n"
"{\n"
" vec4 t = texture2D(tex, v_texcoord);\n"
" vec4 t = texture2D(tex, v_texcoord * tex_scale0);\n"
" gl_FragColor = vec4(t.%c, t.%c, t.%c, 1.0);\n"
"}"
};
@ -241,7 +240,7 @@ static const char *frag_COMPOSE_gles2 = {
COMPOSE_WEIGHT
"void main(void)\n"
"{\n"
" vec4 t = texture2D(tex, v_texcoord);\n"
" vec4 t = texture2D(tex, v_texcoord * tex_scale0);\n"
" float value = dot(t.%c%c, compose_weight);"
" gl_FragColor = vec4(value, value, value, 1.0);\n"
"}"
@ -258,7 +257,7 @@ static const char *frag_AYUV_gles2 = {
"void main(void) {\n"
" float r,g,b;\n"
" vec3 yuv;\n"
" yuv = texture2D(tex,v_texcoord).gba;\n"
" yuv = texture2D(tex,v_texcoord * tex_scale0).gba;\n"
" yuv += offset;\n"
" r = dot(yuv, rcoeff);\n"
" g = dot(yuv, gcoeff);\n"
@ -279,7 +278,7 @@ static const char *frag_PLANAR_YUV_gles2 = {
"void main(void) {\n"
" float r,g,b;\n"
" vec3 yuv;\n"
" yuv.x=texture2D(Ytex,v_texcoord).r;\n"
" yuv.x=texture2D(Ytex,v_texcoord * tex_scale0).r;\n"
" yuv.y=texture2D(Utex,v_texcoord).r;\n"
" yuv.z=texture2D(Vtex,v_texcoord).r;\n"
" yuv += offset;\n"
@ -302,8 +301,8 @@ static const char *frag_NV12_NV21_gles2 = {
"void main(void) {\n"
" float r,g,b;\n"
" vec3 yuv;\n"
" yuv.x=texture2D(Ytex, v_texcoord).r;\n"
" yuv.yz=texture2D(UVtex, v_texcoord).%c%c;\n"
" yuv.x=texture2D(Ytex, v_texcoord * tex_scale0).r;\n"
" yuv.yz=texture2D(UVtex, v_texcoord * tex_scale1).%c%c;\n"
" yuv += offset;\n"
" r = dot(yuv, rcoeff);\n"
" g = dot(yuv, gcoeff);\n"
@ -322,7 +321,7 @@ static const char *frag_COPY_gles2 = {
"uniform vec2 tex_scale2;\n"
"void main(void)\n"
"{\n"
" vec4 t = texture2D(tex, v_texcoord);\n"
" vec4 t = texture2D(tex, v_texcoord * tex_scale0);\n"
" gl_FragColor = vec4(t.rgb, 1.0);\n"
"}"
};
@ -333,15 +332,17 @@ static const gchar *frag_YUY2_UYVY_gles2 =
"precision mediump float;\n"
"varying vec2 v_texcoord;\n"
"uniform sampler2D Ytex, UVtex;\n"
"uniform vec2 tex_scale0;\n"
"uniform vec2 tex_scale1;\n"
"uniform vec2 tex_scale2;\n"
YUV_TO_RGB_COEFFICIENTS
"void main(void) {\n"
" vec3 yuv;\n"
" float fx, fy, y, u, v, r, g, b;\n"
" fx = v_texcoord.x;\n"
" fy = v_texcoord.y;\n"
" yuv.x = texture2D(Ytex,vec2(fx,fy)).%c;\n"
" yuv.y = texture2D(UVtex,vec2(fx,fy)).%c;\n"
" yuv.z = texture2D(UVtex,vec2(fx,fy)).%c;\n"
" yuv.x = texture2D(Ytex,v_texcoord * tex_scale0).%c;\n"
" yuv.yz = texture2D(UVtex,v_texcoord * tex_scale1).%c%c;\n"
" yuv+=offset;\n"
" r = dot(yuv, rcoeff);\n"
" g = dot(yuv, gcoeff);\n"
@ -365,8 +366,9 @@ static const gchar *text_vertex_shader_gles2 =
struct TexData
{
guint internal_format, format, type, width, height;
guint tex_scaling[2];
const gchar *name;
gfloat tex_scaling[2];
const gchar *shader_name;
guint unpack_length;
};
struct _GstGLUploadPrivate
@ -1237,19 +1239,35 @@ error:
}
}
static inline guint
_gl_format_n_components (GLenum format)
{
switch (format) {
case GL_RGBA:
return 4;
case GL_RGB:
return 3;
case GL_LUMINANCE_ALPHA:
return 2;
case GL_LUMINANCE:
return 1;
default:
return 1;
}
}
/* called by gst_gl_context_thread_do_upload (in the gl thread) */
gboolean
_do_upload_make (GstGLContext * context, GstGLUpload * upload)
{
GstGLFuncs *gl;
GstVideoFormat v_format;
guint in_width, in_height;
guint in_height;
struct TexData *tex = upload->priv->texture_info;
guint i;
gl = context->gl_vtable;
in_width = GST_VIDEO_INFO_WIDTH (&upload->in_info);
in_height = GST_VIDEO_INFO_HEIGHT (&upload->in_info);
v_format = GST_VIDEO_INFO_FORMAT (&upload->in_info);
@ -1266,126 +1284,94 @@ _do_upload_make (GstGLContext * context, GstGLUpload * upload)
tex[0].internal_format = GL_RGBA;
tex[0].format = GL_RGBA;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "tex";
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
tex[0].internal_format = GL_RGB;
tex[0].format = GL_RGB;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "tex";
break;
case GST_VIDEO_FORMAT_GRAY8:
tex[0].internal_format = GL_LUMINANCE;
tex[0].format = GL_LUMINANCE;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "tex";
break;
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
tex[0].internal_format = GL_LUMINANCE_ALPHA;
tex[0].format = GL_LUMINANCE_ALPHA;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "tex";
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
tex[0].internal_format = GL_LUMINANCE_ALPHA;
tex[0].format = GL_LUMINANCE_ALPHA;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "Ytex";
tex[1].internal_format = GL_RGBA8;
tex[1].format = GL_RGBA;
tex[1].type = GL_UNSIGNED_BYTE;
tex[1].width = GST_ROUND_UP_2 (in_width) / 2;
tex[1].height = in_height;
tex[1].shader_name = "UVtex";
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
tex[0].internal_format = GL_LUMINANCE;
tex[0].format = GL_LUMINANCE;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "Ytex";
tex[1].internal_format = GL_LUMINANCE_ALPHA;
tex[1].format = GL_LUMINANCE_ALPHA;
tex[1].type = GL_UNSIGNED_BYTE;
tex[1].width = GST_ROUND_UP_2 (in_width) / 2;
tex[1].height = GST_ROUND_UP_2 (in_height) / 2;
tex[1].shader_name = "UVtex";
break;
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
tex[0].internal_format = GL_LUMINANCE;
tex[0].format = GL_LUMINANCE;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "Ytex";
tex[1].internal_format = GL_LUMINANCE;
tex[1].format = GL_LUMINANCE;
tex[1].type = GL_UNSIGNED_BYTE;
tex[1].width = in_width;
tex[1].height = in_height;
tex[1].shader_name = "Utex";
tex[2].internal_format = GL_LUMINANCE;
tex[2].format = GL_LUMINANCE;
tex[2].type = GL_UNSIGNED_BYTE;
tex[2].width = in_width;
tex[2].height = in_height;
tex[2].shader_name = "Vtex";
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
tex[0].internal_format = GL_LUMINANCE;
tex[0].format = GL_LUMINANCE;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[0].shader_name = "Ytex";
tex[1].internal_format = GL_LUMINANCE;
tex[1].format = GL_LUMINANCE;
tex[1].type = GL_UNSIGNED_BYTE;
tex[1].width = GST_ROUND_UP_2 (in_width) / 2;
tex[1].height = GST_ROUND_UP_2 (in_height) / 2;
tex[1].shader_name = "Utex";
tex[2].internal_format = GL_LUMINANCE;
tex[2].format = GL_LUMINANCE;
tex[2].type = GL_UNSIGNED_BYTE;
tex[2].width = GST_ROUND_UP_2 (in_width) / 2;
tex[2].height = GST_ROUND_UP_2 (in_height) / 2;
break;
case GST_VIDEO_FORMAT_Y42B:
tex[0].internal_format = GL_LUMINANCE;
tex[0].format = GL_LUMINANCE;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[1].internal_format = GL_LUMINANCE;
tex[1].format = GL_LUMINANCE;
tex[1].type = GL_UNSIGNED_BYTE;
tex[1].width = GST_ROUND_UP_2 (in_width) / 2;
tex[1].height = in_height;
tex[2].internal_format = GL_LUMINANCE;
tex[2].format = GL_LUMINANCE;
tex[2].type = GL_UNSIGNED_BYTE;
tex[2].width = GST_ROUND_UP_2 (in_width) / 2;
tex[2].height = in_height;
break;
case GST_VIDEO_FORMAT_Y41B:
tex[0].internal_format = GL_LUMINANCE;
tex[0].format = GL_LUMINANCE;
tex[0].type = GL_UNSIGNED_BYTE;
tex[0].width = in_width;
tex[0].height = in_height;
tex[1].internal_format = GL_LUMINANCE;
tex[1].format = GL_LUMINANCE;
tex[1].type = GL_UNSIGNED_BYTE;
tex[1].width = GST_ROUND_UP_4 (in_width) / 4;
tex[1].height = in_height;
tex[2].internal_format = GL_LUMINANCE;
tex[2].format = GL_LUMINANCE;
tex[2].type = GL_UNSIGNED_BYTE;
tex[2].width = GST_ROUND_UP_4 (in_width) / 4;
tex[2].height = in_height;
tex[2].shader_name = "Vtex";
break;
default:
gst_gl_context_set_error (context, "Unsupported upload video format %d",
@ -1395,6 +1381,93 @@ _do_upload_make (GstGLContext * context, GstGLUpload * upload)
}
for (i = 0; i < upload->priv->n_textures; i++) {
guint plane_stride, plane_width;
if (GST_VIDEO_INFO_IS_YUV (&upload->in_info))
/* For now component width and plane width are the same and the
* plane-component mapping matches
*/
plane_width = GST_VIDEO_INFO_COMP_WIDTH (&upload->in_info, i);
else /* RGB, GRAY */
plane_width = GST_VIDEO_INFO_WIDTH (&upload->in_info);
plane_stride = GST_VIDEO_INFO_PLANE_STRIDE (&upload->in_info, i);
/* YUV interleaved packed formats require special attention as we upload
* multiple textures from the same plane.
*/
if (v_format == GST_VIDEO_FORMAT_YUY2 || v_format == GST_VIDEO_FORMAT_UYVY) {
if (i == 1)
plane_stride = GST_VIDEO_INFO_COMP_STRIDE (&upload->in_info, 1);
}
tex[i].width = plane_width;
tex[i].tex_scaling[0] = 1.0f;
tex[i].tex_scaling[1] = 1.0f;
#if GST_GL_HAVE_OPENGL || GST_GL_HAVE_GLES3
if (USING_OPENGL (context) || USING_GLES3 (context)) {
guint n_gl_comps = _gl_format_n_components (tex[i].format);
tex[i].unpack_length = plane_stride / n_gl_comps;
}
#endif
#if GST_GL_HAVE_GLES2
if (USING_GLES2 (context)) {
guint pstride, n_planes;
guint j = 8;
pstride = GST_VIDEO_INFO_COMP_PSTRIDE (&upload->in_info, i);
n_planes = GST_VIDEO_INFO_N_PLANES (&upload->in_info);
while (j >= pstride) {
/* GST_ROUND_UP_j(plane_width * pstride) */
guint round_up_j = ((plane_width * pstride) + j - 1) & ~(j - 1);
if (round_up_j == plane_stride) {
GST_LOG ("Found alignment of %u for plane %u based on width (with "
"plane width:%u, plane stride:%u and pixel stride:%u. "
"RU%u(%u*%u) = %u)", j, i, plane_width, plane_stride, pstride,
j, plane_width, pstride, round_up_j);
tex[i].unpack_length = j;
break;
}
j >>= 1;
}
if (j < pstride) {
/* Failed to find a suitable alignment, try based on plane_stride and
* scale in the shader. Useful for alignments that are greater than 8.
*/
j = 8;
while (j >= n_planes) {
/* GST_ROUND_UP_j(plane_stride) */
guint round_up_j = ((plane_stride) + j - 1) & ~(j - 1);
if (round_up_j == plane_stride) {
GST_LOG ("Found alignment of %u for plane %u based on stride "
"(with plane stride:%u and pixel stride:%u. RU%u(%u) = %u)",
j, i, plane_stride, pstride, j, plane_stride, round_up_j);
tex[i].unpack_length = j;
tex[i].tex_scaling[0] =
(gfloat) (plane_width * pstride) / (gfloat) plane_stride;
break;
}
j >>= 1;
}
if (j < n_planes) {
GST_ERROR
("Failed to find matching alignment for plane %u, Image may "
"look corrupted. plane width:%u, plane stride:%u and pixel "
"stride:%u", i, plane_width, plane_stride, pstride);
}
}
}
#endif
gl->GenTextures (1, &upload->in_texture[i]);
gl->BindTexture (GL_TEXTURE_2D, upload->in_texture[i]);
@ -1420,6 +1493,7 @@ _do_upload_fill (GstGLContext * context, GstGLUpload * upload)
for (i = 0; i < upload->priv->n_textures; i++) {
guint data_i = i;
/* upload from the same plane */
if (v_format == GST_VIDEO_FORMAT_YUY2 || v_format == GST_VIDEO_FORMAT_UYVY)
data_i = 0;
@ -1430,6 +1504,16 @@ _do_upload_fill (GstGLContext * context, GstGLUpload * upload)
else if (i == 2)
data_i = 1;
}
#if GST_GL_HAVE_OPENGL || GST_GL_HAVE_GLES3
if (USING_OPENGL (context) || USING_GLES3 (context)) {
gl->PixelStorei (GL_UNPACK_ROW_LENGTH, tex[i].unpack_length);
}
#endif
#if GST_GL_HAVE_GLES2
if (USING_GLES2 (context)) {
gl->PixelStorei (GL_UNPACK_ALIGNMENT, tex[i].unpack_length);
}
#endif
GST_LOG ("data transfer for texture no %u, id:%u, %ux%u %u", i,
upload->in_texture[i], tex[i].width, tex[i].height, data_i);
@ -1453,11 +1537,9 @@ static gboolean
_do_upload_draw_opengl (GstGLContext * context, GstGLUpload * upload)
{
GstGLFuncs *gl;
GstVideoFormat v_format;
guint out_width, out_height;
char *texnames[GST_VIDEO_MAX_PLANES];
struct TexData *tex = upload->priv->texture_info;
gint i;
gfloat tex_scaling[6] = { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 };
GLfloat verts[8] = { 1.0f, -1.0f,
-1.0f, -1.0f,
@ -1474,7 +1556,6 @@ _do_upload_draw_opengl (GstGLContext * context, GstGLUpload * upload)
out_width = GST_VIDEO_INFO_WIDTH (&upload->out_info);
out_height = GST_VIDEO_INFO_HEIGHT (&upload->out_info);
v_format = GST_VIDEO_INFO_FORMAT (&upload->in_info);
gl->BindFramebuffer (GL_FRAMEBUFFER, upload->fbo);
@ -1506,58 +1587,7 @@ _do_upload_draw_opengl (GstGLContext * context, GstGLUpload * upload)
gl->ClearColor (0.0, 0.0, 0.0, 0.0);
gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
switch (v_format) {
case GST_VIDEO_FORMAT_GRAY8:
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
texnames[0] = "tex";
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
texnames[0] = "Ytex";
texnames[1] = "UVtex";
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
texnames[0] = "Ytex";
texnames[1] = "Utex";
texnames[2] = "Vtex";
break;
case GST_VIDEO_FORMAT_AYUV:
texnames[0] = "tex";
break;
default:
gst_gl_context_set_error (context, "Unsupported upload video format %d",
v_format);
g_assert_not_reached ();
break;
}
gst_gl_shader_use (upload->shader);
gst_gl_shader_set_uniform_2fv (upload->shader, "tex_scale0", 1,
&tex_scaling[0]);
gst_gl_shader_set_uniform_2fv (upload->shader, "tex_scale1", 1,
&tex_scaling[2]);
gst_gl_shader_set_uniform_2fv (upload->shader, "tex_scale2", 1,
&tex_scaling[4]);
gl->MatrixMode (GL_PROJECTION);
gl->LoadIdentity ();
@ -1565,8 +1595,13 @@ _do_upload_draw_opengl (GstGLContext * context, GstGLUpload * upload)
gl->Enable (GL_TEXTURE_2D);
for (i = upload->priv->n_textures - 1; i >= 0; i--) {
gchar *scale_name = g_strdup_printf ("tex_scale%u", i);
gl->ActiveTexture (GL_TEXTURE0 + i);
gst_gl_shader_set_uniform_1i (upload->shader, texnames[i], i);
gst_gl_shader_set_uniform_1i (upload->shader, tex[i].shader_name, i);
gst_gl_shader_set_uniform_2fv (upload->shader, scale_name, 1,
&tex[i].tex_scaling[0]);
g_free (scale_name);
gl->BindTexture (GL_TEXTURE_2D, upload->in_texture[i]);
gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
@ -1612,11 +1647,9 @@ static gboolean
_do_upload_draw_gles2 (GstGLContext * context, GstGLUpload * upload)
{
GstGLFuncs *gl;
GstVideoFormat v_format;
struct TexData *tex = upload->priv->texture_info;
guint out_width, out_height;
char *texnames[GST_VIDEO_MAX_PLANES];
gint i;
gfloat tex_scaling[6] = { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 };
GLint viewport_dim[4];
@ -1636,7 +1669,6 @@ _do_upload_draw_gles2 (GstGLContext * context, GstGLUpload * upload)
out_width = GST_VIDEO_INFO_WIDTH (&upload->out_info);
out_height = GST_VIDEO_INFO_HEIGHT (&upload->out_info);
v_format = GST_VIDEO_INFO_FORMAT (&upload->in_info);
gl->BindFramebuffer (GL_FRAMEBUFFER, upload->fbo);
@ -1656,57 +1688,7 @@ _do_upload_draw_gles2 (GstGLContext * context, GstGLUpload * upload)
gl->ClearColor (0.0, 0.0, 0.0, 0.0);
gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
switch (v_format) {
case GST_VIDEO_FORMAT_GRAY8:
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
texnames[0] = "tex";
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
texnames[0] = "Ytex";
texnames[1] = "UVtex";
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
texnames[0] = "Ytex";
texnames[1] = "Utex";
texnames[2] = "Vtex";
break;
case GST_VIDEO_FORMAT_AYUV:
texnames[0] = "tex";
break;
default:
gst_gl_context_set_error (context, "Unsupported upload video format %d",
v_format);
g_assert_not_reached ();
break;
}
gst_gl_shader_use (upload->shader);
gst_gl_shader_set_uniform_2fv (upload->shader, "tex_scale0", 1,
&tex_scaling[0]);
gst_gl_shader_set_uniform_2fv (upload->shader, "tex_scale1", 1,
&tex_scaling[2]);
gst_gl_shader_set_uniform_2fv (upload->shader, "tex_scale2", 1,
&tex_scaling[4]);
gl->VertexAttribPointer (upload->shader_attr_position_loc, 3,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
@ -1717,8 +1699,14 @@ _do_upload_draw_gles2 (GstGLContext * context, GstGLUpload * upload)
gl->EnableVertexAttribArray (upload->shader_attr_texture_loc);
for (i = upload->priv->n_textures - 1; i >= 0; i--) {
gchar *scale_name = g_strdup_printf ("tex_scale%u", i);
gl->ActiveTexture (GL_TEXTURE0 + i);
gst_gl_shader_set_uniform_1i (upload->shader, texnames[i], i);
gst_gl_shader_set_uniform_1i (upload->shader, tex[i].shader_name, i);
gst_gl_shader_set_uniform_2fv (upload->shader, scale_name, 1,
&tex[i].tex_scaling[0]);
g_free (scale_name);
gl->BindTexture (GL_TEXTURE_2D, upload->in_texture[i]);
gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);