89,24 → 89,20 |
const char *vs_src = |
"attribute vec4 v_position;\n" |
"attribute vec4 v_texcoord0;\n" |
"attribute vec4 v_texcoord1;\n" |
"varying vec2 source_texture;\n" |
"varying vec2 mask_texture;\n" |
"void main()\n" |
"{\n" |
" gl_Position = v_position;\n" |
" source_texture = v_texcoord0.xy;\n" |
" mask_texture = v_texcoord1.xy;\n" |
"}\n"; |
|
const char *fs_src = |
"varying vec2 source_texture;\n" |
"varying vec2 mask_texture;\n" |
"uniform sampler2D sampler_src;\n" |
"uniform sampler2D sampler_mask;\n" |
"void main()\n" |
"{\n" |
" float ca = texture2D(sampler_mask, mask_texture).r;\n" |
" float ca = texture2D(sampler_mask, source_texture).r;\n" |
" gl_FragColor = vec4(texture2D(sampler_src, source_texture).rgb, ca);\n" |
"}\n"; |
|
224,9 → 220,8 |
|
glBindTexture(GL_TEXTURE_2D, 0); |
|
render->back_buffer = EGL_DRM_BUFFER_BACK; |
render->back_buffer = EGL_DRM_BUFFER_FRONT; |
|
|
render->screen = px_create_image(dpy,context,fb.width,fb.height, |
fb.pitch,fb.name); |
if(render->screen == EGL_NO_IMAGE_KHR) |
315,7 → 310,6 |
glAttachShader(render->blit_prog, fs_shader); |
glBindAttribLocation(render->blit_prog, 0, "v_position"); |
glBindAttribLocation(render->blit_prog, 1, "v_texcoord0"); |
glBindAttribLocation(render->blit_prog, 2, "v_texcoord1"); |
|
glLinkProgram(render->blit_prog); |
glGetProgramiv(render->blit_prog, GL_LINK_STATUS, &ret); |
346,9 → 340,6 |
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_src); |
glEnableVertexAttribArray(1); |
|
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_mask); |
glEnableVertexAttribArray(2); |
|
glEnable(GL_BLEND); |
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA); |
|
396,75 → 387,94 |
|
void create_mask(struct render *render) |
{ |
static EGLint attrib[] = |
{ |
EGL_GL_TEXTURE_LEVEL_KHR, 0, |
EGL_NONE |
}; |
struct drm_i915_gem_mmap_gtt mmap_arg; |
struct drm_i915_gem_create create; |
struct drm_gem_flink flink; |
|
struct drm_i915_gem_mmap mmap_arg; |
EGLint handle, stride; |
int winw, winh, pitch; |
void *data; |
int ret; |
GLuint mask_handle, mask_name; |
EGLImageKHR mask_image; |
|
|
glGenTextures(1, &render->tx_mask); |
if(glGetError() != GL_NO_ERROR) |
goto err1; |
return; |
|
glBindTexture(GL_TEXTURE_2D, render->tx_mask); |
if(glGetError() != GL_NO_ERROR) |
goto err1; |
|
|
pitch = (render->width+15) & ~15; |
|
create.size = pitch *render->height; |
create.handle = 0; |
ret = drm_ioctl(render->fd, DRM_IOCTL_I915_GEM_CREATE, &create); |
if(ret != 0) |
goto err1; |
|
flink.handle = create.handle; |
ret = drm_ioctl(render->fd, DRM_IOCTL_GEM_FLINK, &flink); |
if (ret != 0) |
goto err2; |
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
mask_handle = create.handle; |
mask_name = flink.name; |
|
winw = render->width+10; |
winh = render->height+20+5; |
printf("create mask bo handle %d name %d\n", create.handle, flink.name); |
|
pitch = (winw+3) & -4; |
EGLint attribs[] = { |
EGL_WIDTH, 0, |
EGL_HEIGHT, 0, |
EGL_DRM_BUFFER_STRIDE_MESA, 0, |
EGL_DRM_BUFFER_FORMAT_MESA, |
EGL_DRM_BUFFER_FORMAT_R8_MESA, |
EGL_DRM_BUFFER_USE_MESA, |
EGL_DRM_BUFFER_USE_SHARE_MESA, |
EGL_NONE |
}; |
attribs[1] = pitch; |
attribs[3] = render->height; |
attribs[5] = pitch; |
|
data = user_alloc(pitch * winh); |
mask_image = eglCreateImageKHR(render->dpy, render->context, EGL_DRM_BUFFER_MESA, |
(void *) (uintptr_t)mask_name, attribs); |
|
memset(data, 0x20, pitch * winh); |
printf("create mask image %p\n", mask_image); |
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, winw, winh, 0, |
GL_RED,GL_UNSIGNED_BYTE, data); |
|
user_free(data); |
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); |
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); |
|
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, mask_image); |
|
if(glGetError() != GL_NO_ERROR) |
goto err2; |
|
render->mask = eglCreateImageKHR(render->dpy, render->context, |
EGL_GL_TEXTURE_2D_KHR,(EGLClientBuffer)render->tx_mask,attrib); |
|
if(render->mask == EGL_NO_IMAGE_KHR) |
goto err2; |
|
if(!eglExportDRMImageMESA(render->dpy, render->mask, NULL, &handle, &stride)) |
goto err3; |
|
glBindTexture(GL_TEXTURE_2D, 0); |
|
mmap_arg.handle = handle; |
mmap_arg.handle = mask_handle; |
mmap_arg.offset = 0; |
// mmap_arg.size = stride * winh; |
if (drm_ioctl(render->fd, DRM_IOCTL_I915_GEM_MMAP_GTT, &mmap_arg)) |
mmap_arg.size = pitch * render->height; |
if (drm_ioctl(render->fd, DRM_IOCTL_I915_GEM_MMAP, &mmap_arg)) |
{ |
printf("%s: failed to mmap image %p handle=%d, %d bytes, into CPU domain\n", |
__FUNCTION__, render->mask, handle, stride*winh); |
__FUNCTION__, mask_image, mask_handle, pitch * render->height); |
goto err3; |
} |
|
render->mask_buffer = (void *)(uintptr_t)mmap_arg.offset; |
render->mask_handle = handle; |
render->mask_handle = mask_handle; |
render->mask_name = mask_name; |
render->mask_buffer = (void *)(uintptr_t)mmap_arg.addr_ptr; |
render->mask_image = mask_image; |
|
printf("%s: mmap image %p handle=%d, stride %d %d bytes to %p\n", |
__FUNCTION__, render->mask, handle, stride, stride*winh, render->mask_buffer); |
|
return; |
|
err3: |
eglDestroyImageKHR(render->dpy, render->mask); |
// eglDestroyImageKHR(render->dpy, render->mask); |
err2: |
glBindTexture(GL_TEXTURE_2D, 0); |
err1: |