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westeros-render-embedded.cpp
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/*
* If not stated otherwise in this file or this component's Licenses.txt file the
* following copyright and licenses apply:
*
* Copyright 2016 RDK Management
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <stdio.h>
#include <memory.h>
#include <assert.h>
#include <dlfcn.h>
#include <sys/time.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#if defined (WESTEROS_PLATFORM_EMBEDDED) || defined (WESTEROS_HAVE_WAYLAND_EGL)
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#else
#include <GL/glew.h>
#include <GL/gl.h>
#endif
#if defined (WESTEROS_PLATFORM_EMBEDDED)
#include "westeros-gl.h"
#endif
#if defined (WESTEROS_PLATFORM_RPI)
#include <bcm_host.h>
#endif
#include "westeros-render.h"
#include "wayland-server.h"
#include "wayland-client.h"
#include "wayland-egl.h"
#ifdef ENABLE_SBPROTOCOL
#include "westeros-simplebuffer.h"
#endif
#include <vector>
//#define WST_DEBUG
#ifdef WST_DEBUG
#define INT_TRACE(FORMAT,...) printf( FORMAT "\n", __VA_ARGS__)
#else
#define INT_TRACE(FORMAT,...)
#endif
#define WST_TRACE(...) INT_TRACE(__VA_ARGS__, "")
#define WST_UNUSED( n ) ((void)n)
#define DEFAULT_SURFACE_WIDTH (0)
#define DEFAULT_SURFACE_HEIGHT (0)
#ifndef DRM_FORMAT_R8
#define DRM_FORMAT_R8 (0x20203852)
#endif
#ifndef DRM_FORMAT_GR88
#define DRM_FORMAT_GR88 (0x38385247)
#endif
#ifndef DRM_FORMAT_RG88
#define DRM_FORMAT_RG88 (0x38384752)
#endif
#ifndef DRM_FORMAT_NV12
#define DRM_FORMAT_NV12 (0x3231564E)
#endif
#ifndef DRM_FORMAT_NV21
#define DRM_FORMAT_NV21 (0x3132564E)
#endif
static const char *fShaderText =
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"uniform sampler2D texture;\n"
"uniform float alpha;\n"
"varying vec2 txv;\n"
"void main()\n"
"{\n"
" gl_FragColor= texture2D(texture, txv) * alpha;\n"
"}\n";
static const char *vShaderText =
"uniform vec2 resolution;\n"
"uniform mat4 matrix;\n"
"attribute vec2 pos;\n"
"attribute vec2 texcoord;\n"
"varying vec2 txv;\n"
"void main()\n"
"{\n"
" vec4 p= matrix * vec4(pos, 0, 1);\n"
" vec4 zeroToOne= p / vec4(resolution, resolution.x, 1);\n"
" vec4 zeroToTwo= zeroToOne * vec4(2.0, 2.0, 1, 1);\n"
" vec4 clipSpace= zeroToTwo - vec4(1.0, 1.0, 0, 0);\n"
" clipSpace.w= 1.0+clipSpace.z;\n"
" gl_Position= clipSpace * vec4(1, -1, 1, 1);\n"
" txv= texcoord;\n"
"}\n";
static const char *fShaderTextYUV =
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"uniform sampler2D texture;\n"
"uniform sampler2D textureuv;\n"
"const vec3 cc_r = vec3(1.0, -0.8604, 1.59580);\n"
"const vec4 cc_g = vec4(1.0, 0.539815, -0.39173, -0.81290);\n"
"const vec3 cc_b = vec3(1.0, -1.071, 2.01700);\n"
"uniform float alpha;\n"
"varying vec2 txv;\n"
"varying vec2 txvuv;\n"
"void main()\n"
"{\n"
" vec4 y_vec= texture2D(texture, txv);\n"
" vec4 c_vec= texture2D(textureuv, txvuv);\n"
" vec4 temp_vec= vec4(y_vec.a, 1.0, c_vec.b, c_vec.a);\n"
" gl_FragColor= vec4( dot(cc_r,temp_vec.xyw), dot(cc_g,temp_vec), dot(cc_b,temp_vec.xyz), alpha );\n"
"}\n";
static const char *vShaderTextYUV =
"uniform vec2 resolution;\n"
"uniform mat4 matrix;\n"
"attribute vec2 pos;\n"
"attribute vec2 texcoord;\n"
"attribute vec2 texcoorduv;\n"
"varying vec2 txv;\n"
"varying vec2 txvuv;\n"
"void main()\n"
"{\n"
" vec4 p= matrix * vec4(pos, 0, 1);\n"
" vec4 zeroToOne= p / vec4(resolution, resolution.x, 1);\n"
" vec4 zeroToTwo= zeroToOne * vec4(2.0, 2.0, 1, 1);\n"
" vec4 clipSpace= zeroToTwo - vec4(1.0, 1.0, 0, 0);\n"
" clipSpace.w= 1.0+clipSpace.z;\n"
" gl_Position= clipSpace * vec4(1, -1, 1, 1);\n"
" txv= texcoord;\n"
" txvuv= texcoorduv;\n"
"}\n";
static const char *fShaderText_Y_UV =
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"uniform sampler2D texture;\n"
"uniform sampler2D textureuv;\n"
"const vec3 cc_r = vec3(1.0, -0.8604, 1.59580);\n"
"const vec4 cc_g = vec4(1.0, 0.539815, -0.39173, -0.81290);\n"
"const vec3 cc_b = vec3(1.0, -1.071, 2.01700);\n"
"varying vec2 txv;\n"
"varying vec2 txvuv;\n"
"void main()\n"
"{\n"
" vec4 y_vec= texture2D(texture, txv);\n"
" vec4 c_vec= texture2D(textureuv, txvuv);\n"
" vec4 temp_vec= vec4(y_vec.r, 1.0, c_vec.r, c_vec.g);\n"
" gl_FragColor= vec4( dot(cc_r,temp_vec.xyw), dot(cc_g,temp_vec), dot(cc_b,temp_vec.xyz), 1 );\n"
"}\n";
static const char *fShaderTextExternal =
"#extension GL_OES_EGL_image_external : require\n"
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"uniform samplerExternalOES texture;\n"
"varying vec2 txv;\n"
"void main()\n"
"{\n"
" gl_FragColor= texture2D(texture, txv);\n"
"}\n";
typedef enum _WstShaderType
{
WstShaderType_rgb,
WstShaderType_yuv,
WstShaderType_external
} WstShaderType;
typedef struct _WstShader
{
bool isYUV;
GLuint fragShader;
GLuint vertShader;
GLuint program;
GLuint attrPos;
GLuint attrTexcoord;
GLuint attrTexcoorduv;
GLint uniRes;
GLint uniMatrix;
GLint uniAlpha;
GLint uniTexture;
GLint uniTextureuv;
} WstShader;
static char message[1024];
static bool emitFPS= false;
#define MAX_TEXTURES (2)
struct _WstRenderSurface
{
int textureCount;
bool externalImage;
GLuint textureId[MAX_TEXTURES];
int bufferWidth;
int bufferHeight;
#if defined (WESTEROS_PLATFORM_EMBEDDED) || defined (WESTEROS_HAVE_WAYLAND_EGL)
void *nativePixmap;
EGLImageKHR eglImage[MAX_TEXTURES];
#endif
unsigned char *mem;
bool memDirty;
int memWidth;
int memHeight;
GLint memFormatGL;
GLenum memType;
int x;
int y;
int width;
int height;
bool visible;
float opacity;
float zorder;
bool sizeOverride;
bool dirty;
bool invertedY;
WstRenderSurface *surfaceFast;
};
typedef struct _WstRendererEMB
{
WstRenderer *renderer;
int outputWidth;
int outputHeight;
#if defined (WESTEROS_PLATFORM_EMBEDDED)
WstGLCtx *glCtx;
#endif
void *nativeWindow;
EGLDisplay eglDisplay;
EGLContext eglContext;
PFNEGLCREATEIMAGEKHRPROC eglCreateImageKHR;
PFNEGLDESTROYIMAGEKHRPROC eglDestroyImageKHR;
#if defined (WESTEROS_PLATFORM_EMBEDDED) || defined (WESTEROS_HAVE_WAYLAND_EGL)
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;
#endif
bool haveDmaBufImport;
bool haveExternalImage;
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
bool haveWaylandEGL;
PFNEGLBINDWAYLANDDISPLAYWL eglBindWaylandDisplayWL;
PFNEGLUNBINDWAYLANDDISPLAYWL eglUnbindWaylandDisplayWL;
PFNEGLQUERYWAYLANDBUFFERWL eglQueryWaylandBufferWL;
#endif
WstShader *textureShader;
WstShader *textureShaderYUV;
WstShader *textureShaderExternal;
std::vector<WstRenderSurface*> surfaces;
std::vector<GLuint> deadTextures;
bool fastPathActive;
WstRenderer *rendererFast;
} WstRendererEMB;
static WstRendererEMB* wstRendererEMBCreate( WstRenderer *renderer );
static void wstRendererEMBDestroy( WstRendererEMB *renderer );
static WstRenderSurface *wstRendererEMBCreateSurface(WstRendererEMB *renderer);
static void wstRendererEMBDestroySurface( WstRendererEMB *renderer, WstRenderSurface *surface );
static void wstRendererEMBFlushSurface( WstRendererEMB *renderer, WstRenderSurface *surface );
static void wstRendererEMBPrepareResource( WstRendererEMB *renderer, WstRenderSurface *surface, struct wl_resource *resource);
static void wstRendererEMBCommitShm( WstRendererEMB *renderer, WstRenderSurface *surface, struct wl_resource *resource );
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
static void wstRendererEMBCommitWaylandEGL( WstRendererEMB *renderer, WstRenderSurface *surface,
struct wl_resource *resource, EGLint format );
#endif
#ifdef ENABLE_SBPROTOCOL
static void wstRendererEMBCommitSB( WstRendererEMB *renderer, WstRenderSurface *surface, struct wl_resource *resource );
#endif
#if defined (WESTEROS_PLATFORM_RPI)
static void wstRendererEMBCommitDispmanx( WstRendererEMB *renderer, WstRenderSurface *surface,
DISPMANX_RESOURCE_HANDLE_T dispResource,
EGLint format, int bufferWidth, int bufferHeight );
#endif
static void wstRendererEMBRenderSurface( WstRendererEMB *renderer, WstRenderSurface *surface );
static WstShader* wstRendererEMBCreateShader( WstRendererEMB *renderer, int shaderType );
static void wstRendererEMBDestroyShader( WstShader *shader );
static void wstRendererEMBShaderDraw( WstShader *shader,
int width, int height, float* matrix, float alpha,
GLuint textureId, GLuint textureUVId,
int count, const float* vc, const float* txc );
static void wstRendererHolePunch( WstRenderer *renderer, int x, int y, int width, int height );
static void wstRendererInitFastPath( WstRendererEMB *renderer );
static bool wstRendererActivateFastPath( WstRendererEMB *renderer );
static void wstRendererDeactivateFastPath( WstRendererEMB *renderer );
static void wstRendererDeleteTexture( WstRendererEMB *renderer, GLuint textureId );
static void wstRendererProcessDeadTextures( WstRendererEMB *renderer );
#define RED_SIZE (8)
#define GREEN_SIZE (8)
#define BLUE_SIZE (8)
#define ALPHA_SIZE (8)
#define DEPTH_SIZE (0)
static WstRendererEMB* wstRendererEMBCreate( WstRenderer *renderer )
{
WstRendererEMB *rendererEMB= 0;
rendererEMB= (WstRendererEMB*)calloc(1, sizeof(WstRendererEMB) );
if ( rendererEMB )
{
if ( getenv("WESTEROS_RENDER_EMBEDDED_FPS" ) )
{
emitFPS= true;
}
rendererEMB->outputWidth= renderer->outputWidth;
rendererEMB->outputHeight= renderer->outputHeight;
rendererEMB->renderer= renderer;
rendererEMB->surfaces= std::vector<WstRenderSurface*>();
rendererEMB->deadTextures= std::vector<GLuint>();
#if defined (WESTEROS_PLATFORM_EMBEDDED)
rendererEMB->glCtx= WstGLInit();
if ( !rendererEMB->glCtx )
{
free( rendererEMB );
rendererEMB= 0;
goto exit;
}
#endif
rendererEMB->eglCreateImageKHR= (PFNEGLCREATEIMAGEKHRPROC)eglGetProcAddress("eglCreateImageKHR");
WST_TRACE( "eglCreateImageKHR %p\n", rendererEMB->eglCreateImageKHR);
rendererEMB->eglDestroyImageKHR= (PFNEGLDESTROYIMAGEKHRPROC)eglGetProcAddress("eglDestroyImageKHR");
WST_TRACE( "eglDestroyImageKHR %p\n", rendererEMB->eglDestroyImageKHR);
#if defined (WESTEROS_PLATFORM_EMBEDDED) || defined (WESTEROS_HAVE_WAYLAND_EGL)
rendererEMB->glEGLImageTargetTexture2DOES= (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)eglGetProcAddress("glEGLImageTargetTexture2DOES");
WST_TRACE( "glEGLImageTargetTexture2DOES %p\n", rendererEMB->glEGLImageTargetTexture2DOES);
#endif
rendererEMB->eglDisplay= eglGetDisplay(EGL_DEFAULT_DISPLAY);
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
const char *extensions= eglQueryString( rendererEMB->eglDisplay, EGL_EXTENSIONS );
if ( extensions )
{
if ( !strstr( extensions, "EGL_WL_bind_wayland_display" ) )
{
printf("wayland-egl support expected, but not advertised by eglQueryString(eglDisplay,EGL_EXTENSIONS): not attempting to use\n" );
}
else
{
printf("wayland-egl support expected, and is advertised by eglQueryString(eglDisplay,EGL_EXTENSIONS): proceeding to use \n" );
rendererEMB->eglBindWaylandDisplayWL= (PFNEGLBINDWAYLANDDISPLAYWL)eglGetProcAddress("eglBindWaylandDisplayWL");
printf( "eglBindWaylandDisplayWL %p\n", rendererEMB->eglBindWaylandDisplayWL );
rendererEMB->eglUnbindWaylandDisplayWL= (PFNEGLUNBINDWAYLANDDISPLAYWL)eglGetProcAddress("eglUnbindWaylandDisplayWL");
printf( "eglUnbindWaylandDisplayWL %p\n", rendererEMB->eglUnbindWaylandDisplayWL );
rendererEMB->eglQueryWaylandBufferWL= (PFNEGLQUERYWAYLANDBUFFERWL)eglGetProcAddress("eglQueryWaylandBufferWL");
printf( "eglQueryWaylandBufferWL %p\n", rendererEMB->eglQueryWaylandBufferWL );
if ( rendererEMB->eglBindWaylandDisplayWL &&
rendererEMB->eglUnbindWaylandDisplayWL &&
rendererEMB->eglQueryWaylandBufferWL )
{
printf("calling eglBindWaylandDisplayWL with eglDisplay %p and wayland display %p\n", rendererEMB->eglDisplay, renderer->display );
EGLBoolean rc= rendererEMB->eglBindWaylandDisplayWL( rendererEMB->eglDisplay, renderer->display );
if ( rc )
{
rendererEMB->haveWaylandEGL= true;
}
else
{
printf("eglBindWaylandDisplayWL failed: %x\n", eglGetError() );
}
}
else
{
printf("wayland-egl support expected, and advertised, but methods are missing: no wayland-egl\n" );
}
}
if ( strstr( extensions, "EGL_EXT_image_dma_buf_import" ) )
{
rendererEMB->haveDmaBufImport= true;
}
}
extensions= (const char *)glGetString(GL_EXTENSIONS);
if ( extensions )
{
#ifdef GL_OES_EGL_image_external
if ( strstr( extensions, "GL_OES_EGL_image_external" ) )
{
rendererEMB->haveExternalImage= true;
}
#endif
}
printf("have wayland-egl: %d\n", rendererEMB->haveWaylandEGL );
printf("have dmabuf import: %d\n", rendererEMB->haveDmaBufImport );
printf("have external image: %d\n", rendererEMB->haveExternalImage );
#endif
}
exit:
return rendererEMB;
}
static void wstRendererEMBDestroy( WstRendererEMB *renderer )
{
if ( renderer )
{
wstRendererProcessDeadTextures( renderer );
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
if ( renderer->haveWaylandEGL )
{
renderer->eglUnbindWaylandDisplayWL( renderer->eglDisplay, renderer->renderer->display );
renderer->haveWaylandEGL= false;
}
#endif
if ( renderer->textureShader )
{
wstRendererEMBDestroyShader( renderer->textureShader );
renderer->textureShader= 0;
}
if ( renderer->textureShaderYUV )
{
wstRendererEMBDestroyShader( renderer->textureShaderYUV );
renderer->textureShaderYUV= 0;
}
#if defined (WESTEROS_PLATFORM_EMBEDDED)
if ( renderer->glCtx )
{
WstGLTerm( renderer->glCtx );
renderer->glCtx= 0;
}
#endif
if ( renderer->rendererFast )
{
renderer->rendererFast->renderTerm( renderer->rendererFast );
free( renderer->rendererFast );
renderer->rendererFast= 0;
}
free( renderer );
}
}
static WstRenderSurface *wstRendererEMBCreateSurface(WstRendererEMB *renderer)
{
WstRenderSurface *surface= 0;
WST_UNUSED(renderer);
surface= (WstRenderSurface*)calloc( 1, sizeof(WstRenderSurface) );
if ( surface )
{
surface->textureCount= 1;
surface->textureId[0]= GL_NONE;
surface->width= DEFAULT_SURFACE_WIDTH;
surface->height= DEFAULT_SURFACE_HEIGHT;
surface->x= 0;
surface->y= 0;
surface->visible= true;
surface->opacity= 1.0;
surface->zorder= 0.5;
surface->dirty= true;
if ( renderer->fastPathActive )
{
surface->surfaceFast= renderer->rendererFast->surfaceCreate( renderer->rendererFast );
if ( !surface->surfaceFast )
{
wstRendererDeactivateFastPath( renderer );
}
}
}
return surface;
}
static void wstRendererEMBDestroySurface( WstRendererEMB *renderer, WstRenderSurface *surface )
{
if ( surface )
{
wstRendererEMBFlushSurface( renderer, surface );
if ( renderer->rendererFast )
{
if ( surface->surfaceFast )
{
renderer->rendererFast->surfaceDestroy( renderer->rendererFast, surface->surfaceFast );
surface->surfaceFast= 0;
}
}
free( surface );
}
}
static void wstRendererEMBFlushSurface( WstRendererEMB *renderer, WstRenderSurface *surface )
{
if ( surface )
{
for( int i= 0; i < MAX_TEXTURES; ++i )
{
if ( surface->textureId[i] )
{
wstRendererDeleteTexture( renderer, surface->textureId[i] );
surface->textureId[i]= GL_NONE;
}
#if defined (WESTEROS_PLATFORM_EMBEDDED) || defined (WESTEROS_HAVE_WAYLAND_EGL)
if ( surface->eglImage[i] )
{
renderer->eglDestroyImageKHR( renderer->eglDisplay,
surface->eglImage[i] );
surface->eglImage[i]= 0;
}
#endif
}
#if defined (WESTEROS_PLATFORM_EMBEDDED)
if ( surface->nativePixmap )
{
WstGLReleaseNativePixmap( renderer->glCtx, surface->nativePixmap );
surface->nativePixmap= 0;
}
#endif
if ( surface->mem )
{
free( surface->mem );
surface->mem= 0;
}
}
}
static void wstRendererEMBPrepareResource( WstRendererEMB *renderer, WstRenderSurface *surface, struct wl_resource *resource )
{
if ( surface && resource )
{
EGLImageKHR eglImage= 0;
#ifdef ENABLE_SBPROTOCOL
struct wl_sb_buffer *sbBuffer;
sbBuffer= WstSBBufferGet( resource );
if ( sbBuffer )
{
#ifdef EGL_LINUX_DMA_BUF_EXT
if ( renderer->haveDmaBufImport )
{
if ( WstSBBufferGetFd( sbBuffer ) >= 0 )
{
int i;
uint32_t frameFormat, frameWidth, frameHeight;
int fd[MAX_TEXTURES];
int32_t offset[MAX_TEXTURES], stride[MAX_TEXTURES];
EGLint attr[28];
frameFormat= WstSBBufferGetFormat( sbBuffer );
frameWidth= WstSBBufferGetWidth( sbBuffer );
frameHeight= WstSBBufferGetHeight( sbBuffer );
for( i= 0; i < MAX_TEXTURES; ++i )
{
fd[i]= WstSBBufferGetPlaneFd( sbBuffer, i );
WstSBBufferGetPlaneOffsetAndStride( sbBuffer, i, &offset[i], &stride[i] );
}
if ( (surface->bufferWidth != frameWidth) || (surface->bufferHeight != frameHeight) )
{
surface->bufferWidth= frameWidth;
surface->bufferHeight= frameHeight;
}
for( i= 0; i < MAX_TEXTURES; ++i )
{
if ( surface->eglImage[i] )
{
renderer->eglDestroyImageKHR( renderer->eglDisplay,
surface->eglImage[i] );
surface->eglImage[i]= 0;
}
}
switch( frameFormat )
{
case WL_SB_FORMAT_NV12:
case WL_SB_FORMAT_NV21:
if ( renderer->haveExternalImage )
{
if ( fd[1] == -1 )
{
fd[1]= fd[0];
}
i= 0;
attr[i++]= EGL_WIDTH;
attr[i++]= frameWidth;
attr[i++]= EGL_HEIGHT;
attr[i++]= frameHeight;
attr[i++]= EGL_LINUX_DRM_FOURCC_EXT;
attr[i++]= (frameFormat == WL_SB_FORMAT_NV12 ? DRM_FORMAT_NV12 : DRM_FORMAT_NV21);
attr[i++]= EGL_DMA_BUF_PLANE0_FD_EXT;
attr[i++]= fd[0];
attr[i++]= EGL_DMA_BUF_PLANE0_OFFSET_EXT;
attr[i++]= offset[0];
attr[i++]= EGL_DMA_BUF_PLANE0_PITCH_EXT;
attr[i++]= stride[0];
attr[i++]= EGL_DMA_BUF_PLANE1_FD_EXT;
attr[i++]= fd[1];
attr[i++]= EGL_DMA_BUF_PLANE1_OFFSET_EXT;
attr[i++]= offset[1];
attr[i++]= EGL_DMA_BUF_PLANE1_PITCH_EXT;
attr[i++]= stride[1];
attr[i++]= EGL_YUV_COLOR_SPACE_HINT_EXT;
attr[i++]= EGL_ITU_REC709_EXT;
attr[i++]= EGL_SAMPLE_RANGE_HINT_EXT;
attr[i++]= EGL_YUV_FULL_RANGE_EXT;
attr[i++]= EGL_NONE;
eglImage= renderer->eglCreateImageKHR( renderer->eglDisplay,
EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
(EGLClientBuffer)NULL,
attr );
if ( eglImage )
{
surface->eglImage[0]= eglImage;
if ( surface->textureId[0] != GL_NONE )
{
glDeleteTextures( 1, &surface->textureId[0] );
}
surface->textureId[0]= GL_NONE;
}
else
{
printf("wstRendererGLPrepareResource: eglCreateImageKHR failed for fd %d, DRM_FORMAT_NV12: errno %X\n", fd[0], eglGetError());
}
surface->textureCount= 1;
surface->externalImage= true;
}
else
{
if ( fd[1] == -1 )
{
fd[1]= fd[0];
}
i= 0;
attr[i++]= EGL_WIDTH;
attr[i++]= frameWidth;
attr[i++]= EGL_HEIGHT;
attr[i++]= frameHeight;
attr[i++]= EGL_LINUX_DRM_FOURCC_EXT;
attr[i++]= DRM_FORMAT_R8;
attr[i++]= EGL_DMA_BUF_PLANE0_FD_EXT;
attr[i++]= fd[0];
attr[i++]= EGL_DMA_BUF_PLANE0_OFFSET_EXT;
attr[i++]= offset[0];
attr[i++]= EGL_DMA_BUF_PLANE0_PITCH_EXT;
attr[i++]= stride[0];
attr[i++]= EGL_NONE;
eglImage= renderer->eglCreateImageKHR( renderer->eglDisplay,
EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
(EGLClientBuffer)NULL,
attr );
if ( eglImage )
{
surface->eglImage[0]= eglImage;
if ( surface->textureId[0] != GL_NONE )
{
wstRendererDeleteTexture( renderer, surface->textureId[0] );
}
surface->textureId[0]= GL_NONE;
}
else
{
printf("wstRendererGLPrepareResource: eglCreateImageKHR failed for fd %d, DRM_FORMAT_R8: errno %X\n", fd[0], eglGetError());
}
i= 0;
attr[i++]= EGL_WIDTH;
attr[i++]= frameWidth/2;
attr[i++]= EGL_HEIGHT;
attr[i++]= frameHeight/2;
attr[i++]= EGL_LINUX_DRM_FOURCC_EXT;
attr[i++]= (frameFormat == WL_SB_FORMAT_NV12 ? DRM_FORMAT_GR88 : DRM_FORMAT_RG88);
attr[i++]= EGL_DMA_BUF_PLANE0_FD_EXT;
attr[i++]= fd[1];
attr[i++]= EGL_DMA_BUF_PLANE0_OFFSET_EXT;
attr[i++]= offset[1];
attr[i++]= EGL_DMA_BUF_PLANE0_PITCH_EXT;
attr[i++]= stride[1];
attr[i++]= EGL_NONE;
eglImage= renderer->eglCreateImageKHR( renderer->eglDisplay,
EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
(EGLClientBuffer)NULL,
attr );
if ( eglImage )
{
surface->eglImage[1]= eglImage;
if ( surface->textureId[1] != GL_NONE )
{
wstRendererDeleteTexture( renderer, surface->textureId[1] );
}
surface->textureId[1]= GL_NONE;
}
else
{
printf("wstRendererGLPrepareResource: eglCreateImageKHR failed for fd %d, DRM_FORMAT_GR88: errno %X\n", fd[1], eglGetError());
}
surface->textureCount= 2;
}
break;
default:
printf("wstRendererGLPrepareResource: unsuppprted texture format: %x\n", frameFormat );
break;
}
}
}
#endif
}
#endif
}
}
static void wstRendererEMBCommitShm( WstRendererEMB *renderer, WstRenderSurface *surface, struct wl_resource *resource )
{
struct wl_shm_buffer *shmBuffer;
int width, height, stride;
GLint formatGL;
GLenum type;
bool transformPixelsA= false;
bool transformPixelsB= false;
bool fillAlpha= false;
void *data;
shmBuffer= wl_shm_buffer_get( resource );
if ( shmBuffer )
{
width= wl_shm_buffer_get_width(shmBuffer);
height= wl_shm_buffer_get_height(shmBuffer);
stride= wl_shm_buffer_get_stride(shmBuffer);
// The SHM formats describe the structure of the color channels for a pixel as
// they would appear in a machine register not the byte order in memory. For
// example WL_SHM_FORMAT_ARGB8888 is a 32 bit pixel with alpha in the 8 most significant
// bits and blue in the 8 list significant bits. On a little endian machine the
// byte order in memory would be B, G, R, A.
switch( wl_shm_buffer_get_format(shmBuffer) )
{
case WL_SHM_FORMAT_ARGB8888:
#ifdef BIG_ENDIAN_CPU
formatGL= GL_RGBA;
transformPixelsA= true;
#else
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
if ( renderer->haveWaylandEGL )
{
formatGL= GL_BGRA_EXT;
}
else
{
formatGL= GL_RGBA;
transformPixelsB= true;
}
#elif defined (WESTEROS_PLATFORM_EMBEDDED)
formatGL= GL_BGRA_EXT;
#else
formatGL= GL_RGBA;
transformPixelsB= true;
#endif
#endif
type= GL_UNSIGNED_BYTE;
break;
case WL_SHM_FORMAT_XRGB8888:
#ifdef BIG_ENDIAN_CPU
formatGL= GL_RGBA;
transformPixelsA= true;
#else
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
if ( renderer->haveWaylandEGL )
{
formatGL= GL_BGRA_EXT;
}
else
{
formatGL= GL_RGBA;
transformPixelsB= true;
}
#elif defined (WESTEROS_PLATFORM_EMBEDDED)
formatGL= GL_BGRA_EXT;
#else
formatGL= GL_RGBA;
transformPixelsB= true;
#endif
#endif
type= GL_UNSIGNED_BYTE;
fillAlpha= true;
break;
case WL_SHM_FORMAT_BGRA8888:
#ifdef BIG_ENDIAN_CPU
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
if ( renderer->haveWaylandEGL )
{
formatGL= GL_BGRA_EXT;
}
else
{
formatGL= GL_RGBA;
transformPixelsB= true;
}
#elif defined (WESTEROS_PLATFORM_EMBEDDED)
formatGL= GL_BGRA_EXT;
#else
formatGL= GL_RGBA;
transformPixelsB= true;
#endif
#else
formatGL= GL_RGBA;
transformPixelsA= true;
#endif
type= GL_UNSIGNED_BYTE;
break;
case WL_SHM_FORMAT_BGRX8888:
#ifdef BIG_ENDIAN_CPU
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
if ( renderer->haveWaylandEGL )
{
formatGL= GL_BGRA_EXT;
}
else
{
formatGL= GL_RGBA;
transformPixelsB= true;
}
#elif defined (WESTEROS_PLATFORM_EMBEDDED)
formatGL= GL_BGRA_EXT;
#else
formatGL= GL_RGBA;
transformPixelsB= true;
#endif
#else
formatGL= GL_RGBA;
transformPixelsA= true;
#endif
type= GL_UNSIGNED_BYTE;
fillAlpha= true;
break;
case WL_SHM_FORMAT_RGB565:
formatGL= GL_RGB;
type= GL_UNSIGNED_SHORT_5_6_5;
break;
case WL_SHM_FORMAT_ARGB4444:
formatGL= GL_RGBA;
type= GL_UNSIGNED_SHORT_4_4_4_4;
break;
default:
formatGL= GL_NONE;
break;
}
if ( formatGL != GL_NONE )
{
wl_shm_buffer_begin_access(shmBuffer);
data= wl_shm_buffer_get_data(shmBuffer);
if ( surface->mem &&
(
(surface->memWidth != width) ||
(surface->memHeight != height) ||
(surface->memFormatGL != formatGL) ||
(surface->memType != type)
)
)
{
free( surface->mem );
surface->mem= 0;
}
if ( !surface->mem )
{
surface->mem= (unsigned char*)malloc( stride*height );
}
if ( surface->mem )
{
memcpy( surface->mem, data, stride*height );
if ( transformPixelsA )
{
// transform ARGB to RGBA
unsigned int pixel, alpha;
unsigned int *pixdata= (unsigned int*)surface->mem;
for( int y= 0; y < height; ++y )
{
for( int x= 0; x < width; ++x )
{
pixel= pixdata[y*width+x];
alpha= (fillAlpha ? 0xFF : (pixel>>24));
pixel= (pixel<<8)|alpha;
pixdata[y*width+x]= pixel;
}
}
}
else if ( transformPixelsB )
{
// transform BGRA to RGBA
unsigned char *pixdata= (unsigned char*)surface->mem;
for( int y= 0; y < height; ++y )
{
for( int x= 0; x < width; ++x )
{
if ( fillAlpha )
{
pixdata[y*width*4 + x*4 +3]= 0xFF;
}
unsigned char temp= pixdata[y*width*4 + x*4 +2];
pixdata[y*width*4 + x*4 +2]= pixdata[y*width*4 + x*4 +0];
pixdata[y*width*4 + x*4 +0]= temp;
}
}
}
else if ( fillAlpha )
{
if ( fillAlpha )
{
unsigned char *pixdata= (unsigned char*)surface->mem;
for( int y= 0; y < height; ++y )
{
for( int x= 0; x < width; ++x )
{
pixdata[y*width*4 + x*4 +3]= 0xFF;
}
}
}
}
surface->bufferWidth= width;
surface->bufferHeight= height;
surface->memWidth= width;
surface->memHeight= height;
surface->memFormatGL= formatGL;
surface->memType= type;
surface->memDirty= true;
}
wl_shm_buffer_end_access(shmBuffer);
}
}
}
#if defined (WESTEROS_HAVE_WAYLAND_EGL)
static void wstRendererEMBCommitWaylandEGL( WstRendererEMB *renderer, WstRenderSurface *surface,
struct wl_resource *resource, EGLint format )
{
EGLImageKHR eglImage= 0;