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mesa egl: GL blitter support code.

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blitter: single set of the texture coordinates.

git-svn-id: svn://kolibrios.org@4525 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
2014-01-24 23:17:29 +00:00
parent 7ea58d1906
commit a95c356dc8
7 changed files with 95 additions and 94 deletions
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112
contrib/sdk/sources/render/render.c
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@@ -89,24 +89,20 @@ struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy)
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";
@@ -224,8 +220,7 @@ struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy)
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);
@@ -315,7 +310,6 @@ struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy)
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 @@ struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy)
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 @@ err:
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 err2;
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;
mask_handle = create.handle;
mask_name = flink.name;
printf("create mask bo handle %d name %d\n", create.handle, flink.name);
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;
mask_image = eglCreateImageKHR(render->dpy, render->context, EGL_DRM_BUFFER_MESA,
(void *) (uintptr_t)mask_name, attribs);
printf("create mask image %p\n", mask_image);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
winw = render->width+10;
winh = render->height+20+5;
pitch = (winw+3) & -4;
data = user_alloc(pitch * winh);
memset(data, 0x20, pitch * winh);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, winw, winh, 0,
GL_RED,GL_UNSIGNED_BYTE, data);
user_free(data);
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;
printf("%s: mmap image %p handle=%d, stride %d %d bytes to %p\n",
__FUNCTION__, render->mask, handle, stride, stride*winh, render->mask_buffer);
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;
return;
err3:
eglDestroyImageKHR(render->dpy, render->mask);
// eglDestroyImageKHR(render->dpy, render->mask);
err2:
glBindTexture(GL_TEXTURE_2D, 0);
err1: