forked from KolibriOS/kolibrios
492 lines
14 KiB
C
492 lines
14 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/time.h>
|
|
|
|
#include "render.h"
|
|
#include <i915_drm.h>
|
|
#include <kos32sys.h>
|
|
|
|
void create_mask(struct render *render);
|
|
|
|
static int drm_ioctl(int fd, unsigned long request, void *arg)
|
|
{
|
|
ioctl_t io;
|
|
|
|
io.handle = fd;
|
|
io.io_code = request;
|
|
io.input = arg;
|
|
io.inp_size = 64;
|
|
io.output = NULL;
|
|
io.out_size = 0;
|
|
|
|
return call_service(&io);
|
|
}
|
|
|
|
static EGLImageKHR px_create_image(EGLDisplay display, EGLContext context,
|
|
int width, int height, int stride, int name)
|
|
{
|
|
EGLImageKHR image;
|
|
EGLint attribs[] = {
|
|
EGL_WIDTH, 0,
|
|
EGL_HEIGHT, 0,
|
|
EGL_DRM_BUFFER_STRIDE_MESA, 0,
|
|
EGL_DRM_BUFFER_FORMAT_MESA,
|
|
EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
|
|
EGL_DRM_BUFFER_USE_MESA,
|
|
EGL_DRM_BUFFER_USE_SHARE_MESA |
|
|
EGL_DRM_BUFFER_USE_SCANOUT_MESA,
|
|
EGL_NONE
|
|
};
|
|
attribs[1] = width;
|
|
attribs[3] = height;
|
|
attribs[5] = stride/4;
|
|
|
|
printf("%s w:%d :%d pitch:%d handle %d\n", __FUNCTION__,
|
|
width, height, stride, name);
|
|
|
|
image = eglCreateImageKHR(display, context, EGL_DRM_BUFFER_MESA,
|
|
(void *) (uintptr_t)name, attribs);
|
|
|
|
return image;
|
|
}
|
|
|
|
static GLint create_shader(GLenum type, const char *source)
|
|
{
|
|
GLint ok;
|
|
GLint shader;
|
|
|
|
shader = glCreateShader(type);
|
|
if(shader == 0)
|
|
goto err;
|
|
|
|
glShaderSource(shader, 1, (const GLchar **) &source, NULL);
|
|
glCompileShader(shader);
|
|
glGetShaderiv(shader, GL_COMPILE_STATUS, &ok);
|
|
if (!ok) {
|
|
GLchar *info;
|
|
GLint size;
|
|
|
|
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &size);
|
|
info = malloc(size);
|
|
|
|
glGetShaderInfoLog(shader, size, NULL, info);
|
|
printf("Failed to compile %s: %s\n",
|
|
type == GL_FRAGMENT_SHADER ? "FS" : "VS",info);
|
|
printf("Program source:\n%s", source);
|
|
printf("GLSL compile failure\n");
|
|
free(info);
|
|
glDeleteProgram(shader);
|
|
shader = 0;
|
|
}
|
|
err:
|
|
return shader;
|
|
}
|
|
|
|
|
|
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"
|
|
"varying vec2 source_texture;\n"
|
|
"void main()\n"
|
|
"{\n"
|
|
" gl_Position = v_position;\n"
|
|
" source_texture = v_texcoord0.xy;\n"
|
|
"}\n";
|
|
|
|
const char *fs_src =
|
|
"varying vec2 source_texture;\n"
|
|
"uniform sampler2D sampler_src;\n"
|
|
"uniform sampler2D sampler_mask;\n"
|
|
"void main()\n"
|
|
"{\n"
|
|
" float ca = texture2D(sampler_mask, source_texture).r;\n"
|
|
" gl_FragColor = vec4(texture2D(sampler_src, source_texture).rgb, ca);\n"
|
|
"}\n";
|
|
|
|
EGLint config_attribs[14];
|
|
EGLConfig config;
|
|
EGLint num_configs;
|
|
|
|
EGLContext context;
|
|
|
|
struct drm_i915_fb_info fb;
|
|
GLint vs_shader, fs_shader;
|
|
GLenum status;
|
|
GLint ret;
|
|
int fd;
|
|
struct render *render;
|
|
|
|
|
|
fd = get_service("DISPLAY");
|
|
|
|
memset(&fb, 0, sizeof(fb));
|
|
ret = drm_ioctl(fd, SRV_FBINFO, &fb);
|
|
if( ret != 0 )
|
|
{ printf("failed to get framebuffer info\n");
|
|
goto err;
|
|
};
|
|
|
|
render = (struct render*)malloc(sizeof(struct render));
|
|
if(render == NULL)
|
|
goto err;
|
|
|
|
render->fd = fd;
|
|
render->dpy = dpy;
|
|
render->dx = dx;
|
|
render->dy = dy;
|
|
|
|
if(!eglQuerySurface(dpy, surface, EGL_WIDTH, &render->width))
|
|
goto err1;
|
|
|
|
if(!eglQuerySurface(dpy, surface, EGL_HEIGHT, &render->height))
|
|
goto err1;
|
|
|
|
render->scr_width = fb.width;
|
|
render->scr_height = fb.height;
|
|
|
|
render->front = eglGetBufferImage(dpy, surface, EGL_DRM_BUFFER_FRONT);
|
|
if(render->front == EGL_NO_IMAGE_KHR)
|
|
goto err1;
|
|
|
|
render->back = eglGetBufferImage(dpy, surface, EGL_DRM_BUFFER_BACK);
|
|
if( render->back == EGL_NO_IMAGE_KHR)
|
|
goto err2;
|
|
|
|
|
|
context = eglGetCurrentContext();
|
|
|
|
config_attribs[0] = EGL_RED_SIZE;
|
|
config_attribs[1] = 1;
|
|
config_attribs[2] = EGL_GREEN_SIZE;
|
|
config_attribs[3] = 1;
|
|
config_attribs[4] = EGL_BLUE_SIZE;
|
|
config_attribs[5] = 1;
|
|
config_attribs[6] = EGL_DEPTH_SIZE;
|
|
config_attribs[7] = 1;
|
|
|
|
config_attribs[8] = EGL_SURFACE_TYPE;
|
|
config_attribs[9] = EGL_WINDOW_BIT;
|
|
|
|
config_attribs[10] = EGL_RENDERABLE_TYPE;
|
|
config_attribs[11] = EGL_OPENGL_BIT;
|
|
config_attribs[12] = EGL_NONE;
|
|
|
|
if (!eglChooseConfig(dpy,config_attribs, &config, 1, &num_configs) || !num_configs)
|
|
{
|
|
printf("failed to choose a config");
|
|
goto err3;
|
|
}
|
|
|
|
render->context = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL);
|
|
if (!context)
|
|
{
|
|
printf("failed to create context");
|
|
goto err3;
|
|
};
|
|
|
|
if (!eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, render->context))
|
|
{
|
|
printf("failed to make window current");
|
|
goto err4;
|
|
};
|
|
|
|
|
|
glGenTextures(2, render->tx_buffers);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err5;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, render->tx_buffers[EGL_DRM_BUFFER_FRONT]);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err6;
|
|
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
|
|
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->front);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err6;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, render->tx_buffers[EGL_DRM_BUFFER_BACK]);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err6;
|
|
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
|
|
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->back);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err6;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
|
|
|
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)
|
|
goto err6;
|
|
|
|
glGenTextures(1, &render->tx_screen);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err6;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, render->tx_screen);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err7;
|
|
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
|
|
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,render->screen);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err7;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
|
|
|
create_mask(render);
|
|
|
|
glGenFramebuffers(1, &render->framebuffer);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err8;
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, render->framebuffer);
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err9;
|
|
|
|
glFramebufferTexture2D(GL_FRAMEBUFFER,GL_COLOR_ATTACHMENT0,
|
|
GL_TEXTURE_2D, render->tx_screen,0);
|
|
|
|
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
|
|
if (status != GL_FRAMEBUFFER_COMPLETE)
|
|
{
|
|
const char *str;
|
|
switch (status)
|
|
{
|
|
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
|
|
str = "incomplete attachment";
|
|
break;
|
|
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
|
|
str = "incomplete/missing attachment";
|
|
break;
|
|
case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER:
|
|
str = "incomplete draw buffer";
|
|
break;
|
|
case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER:
|
|
str = "incomplete read buffer";
|
|
break;
|
|
case GL_FRAMEBUFFER_UNSUPPORTED:
|
|
str = "unsupported";
|
|
break;
|
|
case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
|
|
str = "incomplete multiple";
|
|
break;
|
|
default:
|
|
str = "unknown error";
|
|
break;
|
|
}
|
|
printf("destination is framebuffer incomplete: %s [%#x]\n", str, status);
|
|
goto err9;
|
|
}
|
|
|
|
glViewport(0, 0, render->scr_width, render->scr_height);
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
render->blit_prog = glCreateProgram();
|
|
if(render->blit_prog == 0)
|
|
goto err9;
|
|
|
|
vs_shader = create_shader(GL_VERTEX_SHADER,vs_src);
|
|
if(vs_shader == 0)
|
|
goto err10;
|
|
|
|
fs_shader = create_shader(GL_FRAGMENT_SHADER, fs_src);
|
|
if(fs_shader == 0)
|
|
goto err11;
|
|
|
|
glAttachShader(render->blit_prog, vs_shader);
|
|
glAttachShader(render->blit_prog, fs_shader);
|
|
glBindAttribLocation(render->blit_prog, 0, "v_position");
|
|
glBindAttribLocation(render->blit_prog, 1, "v_texcoord0");
|
|
|
|
glLinkProgram(render->blit_prog);
|
|
glGetProgramiv(render->blit_prog, GL_LINK_STATUS, &ret);
|
|
if (!ret)
|
|
{
|
|
GLchar *info;
|
|
GLint size;
|
|
|
|
glGetProgramiv(render->blit_prog, GL_INFO_LOG_LENGTH, &size);
|
|
info = malloc(size);
|
|
|
|
glGetProgramInfoLog(render->blit_prog, size, NULL, info);
|
|
printf("Failed to link: %s\n", info);
|
|
printf("GLSL link failure\n");
|
|
free(info);
|
|
}
|
|
|
|
render->sampler = glGetUniformLocation(render->blit_prog,"sampler_src");
|
|
render->sm_mask = glGetUniformLocation(render->blit_prog,"sampler_mask");
|
|
|
|
glUseProgram(render->blit_prog);
|
|
glUniform1i(render->sampler, 0);
|
|
glUniform1i(render->sm_mask, 1);
|
|
|
|
glVertexAttribPointer(0, 2, GL_FLOAT,GL_FALSE, 2 * sizeof(float),render->vertices);
|
|
glEnableVertexAttribArray(0);
|
|
|
|
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_src);
|
|
glEnableVertexAttribArray(1);
|
|
|
|
render->tc_src[0] = 0.0;
|
|
render->tc_src[1] = 0.0;
|
|
render->tc_src[1*2] = 1.0;
|
|
render->tc_src[1*2+1]= 0.0;
|
|
render->tc_src[2*2] = 1.0;
|
|
render->tc_src[2*2+1]= 1.0;
|
|
render->tc_src[3*2] = 0.0;
|
|
render->tc_src[3*2+1]= 1.0;
|
|
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glBindTexture(GL_TEXTURE_2D, render->tx_mask);
|
|
glTexParameteri(GL_TEXTURE_2D,
|
|
GL_TEXTURE_MIN_FILTER,
|
|
GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D,
|
|
GL_TEXTURE_MAG_FILTER,
|
|
GL_NEAREST);
|
|
|
|
eglMakeCurrent(dpy, surface, surface, context);
|
|
|
|
return render;
|
|
|
|
err11:
|
|
glDeleteShader(vs_shader);
|
|
err10:
|
|
glDeleteProgram(render->blit_prog);
|
|
err9:
|
|
glDeleteFramebuffers(1, &render->framebuffer);
|
|
err8:
|
|
eglDestroyImageKHR(dpy, render->screen);
|
|
err7:
|
|
glDeleteTextures(1, &render->tx_screen);
|
|
err6:
|
|
glDeleteTextures(2, render->tx_buffers);
|
|
err5:
|
|
eglMakeCurrent(dpy, surface, surface, context);
|
|
err4:
|
|
eglDestroyContext(dpy, render->context);
|
|
err3:
|
|
eglDestroyImageKHR(dpy, render->back);
|
|
err2:
|
|
eglDestroyImageKHR(dpy, render->front);
|
|
err1:
|
|
free(render);
|
|
err:
|
|
return NULL;
|
|
};
|
|
|
|
|
|
|
|
|
|
void create_mask(struct render *render)
|
|
{
|
|
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)
|
|
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;
|
|
|
|
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);
|
|
|
|
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, mask_image);
|
|
|
|
if(glGetError() != GL_NO_ERROR)
|
|
goto err2;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
|
|
|
mmap_arg.handle = mask_handle;
|
|
mmap_arg.offset = 0;
|
|
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__, mask_image, mask_handle, pitch * render->height);
|
|
goto err3;
|
|
}
|
|
|
|
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);
|
|
err2:
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
|
err1:
|
|
glDeleteTextures(1, &render->tx_mask);
|
|
};
|