///
// Initialize the shader and program object
//
int Init ( ESContext *esContext )
{
UserData *userData = esContext->userData;
GLbyte vShaderStr[] =
"attribute vec4 a_position; \n"
"attribute vec3 a_normal; \n"
"varying vec3 v_normal; \n"
"void main() \n"
"{ \n"
" gl_Position = a_position; \n"
" v_normal = a_normal; \n"
"} \n";
GLbyte fShaderStr[] =
"precision mediump float; \n"
"varying vec3 v_normal; \n"
"uniform samplerCube s_texture; \n"
"void main() \n"
"{ \n"
" gl_FragColor = textureCube( s_texture, v_normal );\n"
"} \n";
// Load the shaders and get a linked program object
userData->programObject = esLoadProgram ( vShaderStr, fShaderStr );
// Get the attribute locations
userData->positionLoc = glGetAttribLocation ( userData->programObject, "a_position" );
userData->normalLoc = glGetAttribLocation ( userData->programObject, "a_normal" );
// Get the sampler locations
userData->samplerLoc = glGetUniformLocation ( userData->programObject, "s_texture" );
// Load the texture
userData->textureId = CreateSimpleTextureCubemap ();
// Generate the vertex data
userData->numIndices = esGenSphere ( 20, 0.75f, &userData->vertices, &userData->normals,
NULL, &userData->indices );
glClearColor ( 0.0f, 0.0f, 0.0f, 0.0f );
return TRUE;
}
void Sphere::initWithSlice(int slices,float radius)
{
float *vertex, *texCoord, *normal,*tangent;
int *indice;
_aabb._minBox = GLVector3(-radius,-radius,-radius);
_aabb._maxBox = GLVector3(radius, radius, radius);
_numberOfIndice = esGenSphere(slices, radius, &vertex, &normal, &tangent, &texCoord, &indice, &_numberOfVertex);
glGenBuffers(1, &_vertexVBO);
glBindBuffer(GL_ARRAY_BUFFER, _vertexVBO);
glBufferData(GL_ARRAY_BUFFER, 3 * sizeof(float)*_numberOfVertex, vertex, GL_STATIC_DRAW);
//
glGenBuffers(1, &_texCoordVBO);
glBindBuffer(GL_ARRAY_BUFFER, _texCoordVBO);
glBufferData(GL_ARRAY_BUFFER, 2 * sizeof(float)*_numberOfVertex, texCoord, GL_STATIC_DRAW);
//
glGenBuffers(1, &_normalVBO);
glBindBuffer(GL_ARRAY_BUFFER, _normalVBO);
glBufferData(GL_ARRAY_BUFFER, 3 * sizeof(float)*_numberOfVertex, normal, GL_STATIC_DRAW);
//
glGenBuffers(1, &_indiceVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _indiceVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(int)*_numberOfIndice, indice, GL_STATIC_DRAW);
//
glGenBuffers(1, &_tangentVBO);
glBindBuffer(GL_ARRAY_BUFFER,_tangentVBO);
glBufferData(GL_ARRAY_BUFFER, 3 * sizeof(float)*_numberOfVertex, tangent,GL_STATIC_DRAW);
//free memory
delete vertex;
delete texCoord;
delete normal;
delete indice;
delete tangent;
vertex = NULL;
texCoord = NULL;
normal = NULL;
indice = NULL;
tangent = NULL;
}
int main(int argc, char *argv[])
{
EGLDisplay display;
EGLint egl_major, egl_minor;
EGLConfig config;
EGLint num_config;
EGLContext context;
EGLSurface surface;
GLuint vertex_shader;
GLuint fragment_shader;
GLuint program;
GLint ret;
GLint width, height;
#ifdef HOOK
the_hook("/mnt/sdcard/egl2.fdr");
#endif
const char *vertex_shader_source =
"uniform mat4 modelviewMatrix;\n"
"uniform mat4 modelviewprojectionMatrix;\n"
"uniform mat3 normalMatrix;\n"
"\n"
"attribute vec4 in_position; \n"
"attribute vec3 in_normal; \n"
"attribute vec2 in_texcoord; \n"
"\n"
"vec4 lightSource = vec4(2.0, 2.0, 20.0, 0.0);\n"
" \n"
"varying vec4 vColor; \n"
"varying vec2 vTexCoord; \n"
"uniform sampler2D s_texture; \n"
" \n"
"void main() \n"
"{ \n"
" float texvalue = texture2D(s_texture, in_texcoord).x;\n"
" gl_Position = modelviewprojectionMatrix * (in_position + vec4(0.2 * texvalue * in_normal, 0));\n"
" vec3 vEyeNormal = normalMatrix * in_normal;\n"
" vec4 vPosition4 = modelviewMatrix * in_position;\n"
" vec3 vPosition3 = vPosition4.xyz / vPosition4.w;\n"
" vec3 vLightDir = normalize(lightSource.xyz - vPosition3);\n"
" float diff = max(0.0, dot(vEyeNormal, vLightDir));\n"
" vColor = vec4(diff, 0.0, 0.0, 1.0);\n"
" vTexCoord = in_texcoord;\n"
"} \n";
const char *fragment_shader_source =
"precision mediump float; \n"
" \n"
"varying vec4 vColor; \n"
"varying vec2 vTexCoord; \n"
" \n"
"void main() \n"
"{ \n"
" gl_FragColor = vColor;// * texture2D(s_texture, vTexCoord); \n"
"} \n";
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY) {
printf("Error: No display found!\n");
return -1;
}
if (!eglInitialize(display, &egl_major, &egl_minor)) {
printf("Error: eglInitialise failed!\n");
return -1;
}
printf("Using display %p with EGL version %d.%d\n",
display, egl_major, egl_minor);
printf("EGL Version \"%s\"\n", eglQueryString(display, EGL_VERSION));
printf("EGL Vendor \"%s\"\n", eglQueryString(display, EGL_VENDOR));
printf("EGL Extensions \"%s\"\n", eglQueryString(display, EGL_EXTENSIONS));
/* get an appropriate EGL frame buffer configuration */
eglChooseConfig(display, config_attribute_list, &config, 1, &num_config);
/* create an EGL rendering context */
context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_attribute_list);
if (context == EGL_NO_CONTEXT) {
printf("Error: eglCreateContext failed: %d\n", eglGetError());
return -1;
}
surface = eglCreatePbufferSurface(display, config, pbuffer_attribute_list);
if (surface == EGL_NO_SURFACE) {
printf("Error: eglCreatePbufferSurface failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
if (!eglQuerySurface(display, surface, EGL_WIDTH, &width) ||
!eglQuerySurface(display, surface, EGL_HEIGHT, &height)) {
printf("Error: eglQuerySurface failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
printf("PBuffer: %dx%d\n", width, height);
printf("GL Extensions \"%s\"\n", glGetString(GL_EXTENSIONS));
/* connect the context to the surface */
if (!eglMakeCurrent(display, surface, surface, context)) {
printf("Error: eglMakeCurrent() failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
vertex_shader = glCreateShader(GL_VERTEX_SHADER);
if (!vertex_shader) {
printf("Error: glCreateShader(GL_VERTEX_SHADER) failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
glShaderSource(vertex_shader, 1, &vertex_shader_source, NULL);
glCompileShader(vertex_shader);
glGetShaderiv(vertex_shader, GL_COMPILE_STATUS, &ret);
if (!ret) {
char *log;
printf("Error: vertex shader compilation failed!:\n");
glGetShaderiv(vertex_shader, GL_INFO_LOG_LENGTH, &ret);
if (ret > 1) {
log = malloc(ret);
glGetShaderInfoLog(vertex_shader, ret, NULL, log);
printf("%s", log);
}
return -1;
} else
printf("Vertex shader compilation succeeded!\n");
fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
if (!fragment_shader) {
printf("Error: glCreateShader(GL_FRAGMENT_SHADER) failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
glShaderSource(fragment_shader, 1, &fragment_shader_source, NULL);
glCompileShader(fragment_shader);
glGetShaderiv(fragment_shader, GL_COMPILE_STATUS, &ret);
if (!ret) {
char *log;
printf("Error: fragment shader compilation failed!:\n");
glGetShaderiv(fragment_shader, GL_INFO_LOG_LENGTH, &ret);
if (ret > 1) {
log = malloc(ret);
glGetShaderInfoLog(fragment_shader, ret, NULL, log);
printf("%s", log);
}
return -1;
} else
printf("Fragment shader compilation succeeded!\n");
program = glCreateProgram();
if (!program) {
printf("Error: failed to create program!\n");
return -1;
}
GLfloat *vVertices;
GLfloat *vNormals;
GLfloat *vTexCoords;
GLushort *vIndices;
int numIndices = esGenSphere(40, 1.0f, &vVertices, &vNormals,
&vTexCoords, &vIndices, NULL);
GLuint texId = createSimpleTexture();
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glBindAttribLocation(program, 0, "in_position");
glBindAttribLocation(program, 1, "in_normal");
glBindAttribLocation(program, 2, "in_texcoord");
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &ret);
if (!ret) {
char *log;
printf("Error: program linking failed!:\n");
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &ret);
if (ret > 1) {
log = malloc(ret);
glGetProgramInfoLog(program, ret, NULL, log);
printf("%s", log);
}
return -1;
} else
printf("program linking succeeded!\n");
glUseProgram(program);
glViewport(0, 0, width, height);
/* clear the color buffer */
glClearColor(0.5, 0.5, 0.5, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, vVertices);
glEnableVertexAttribArray(0);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, vNormals);
glEnableVertexAttribArray(1);
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 0, vTexCoords);
glEnableVertexAttribArray(2);
ESMatrix modelview;
esMatrixLoadIdentity(&modelview);
esTranslate(&modelview, 0.0f, 0.0f, -8.0f);
esRotate(&modelview, 45.0f, 1.0f, 0.0f, 0.0f);
esRotate(&modelview, 45.0f, 0.0f, 1.0f, 0.0f);
esRotate(&modelview, 10.0f, 0.0f, 0.0f, 1.0f);
GLfloat aspect = (GLfloat)(height) / (GLfloat)(width);
ESMatrix projection;
esMatrixLoadIdentity(&projection);
esFrustum(&projection, -1.8f, +1.8f, -1.8f * aspect, +1.8f * aspect, 6.0f, 10.0f);
ESMatrix modelviewprojection;
esMatrixLoadIdentity(&modelviewprojection);
esMatrixMultiply(&modelviewprojection, &modelview, &projection);
float normal[9];
normal[0] = modelview.m[0][0];
normal[1] = modelview.m[0][1];
normal[2] = modelview.m[0][2];
normal[3] = modelview.m[1][0];
normal[4] = modelview.m[1][1];
normal[5] = modelview.m[1][2];
normal[6] = modelview.m[2][0];
normal[7] = modelview.m[2][1];
normal[8] = modelview.m[2][2];
GLint modelviewmatrix_handle = glGetUniformLocation(program, "modelviewMatrix");
GLint modelviewprojectionmatrix_handle = glGetUniformLocation(program, "modelviewprojectionMatrix");
GLint normalmatrix_handle = glGetUniformLocation(program, "normalMatrix");
GLint sampler_handle = glGetUniformLocation(program, "s_texture");
glUniformMatrix4fv(modelviewmatrix_handle, 1, GL_FALSE, &modelview.m[0][0]);
glUniformMatrix4fv(modelviewprojectionmatrix_handle, 1, GL_FALSE, &modelviewprojection.m[0][0]);
glUniformMatrix3fv(normalmatrix_handle, 1, GL_FALSE, normal);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texId);
glUniform1i(sampler_handle, 0);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glDrawElements(GL_TRIANGLES, numIndices, GL_UNSIGNED_SHORT, vIndices);
glFlush();
fflush(stdout);
dump_gl_screen("/sdcard/egl2.bmp", width, height);
#ifdef HOOK
close_hook();
#endif
return 0;
}
int main(int argc, char **argv)
{
int rv;
int width = 256;
int height = 256;
fb_info fb;
rv = fb_open(0, &fb);
if(rv!=0)
{
exit(1);
}
width = fb.fb_var.xres;
height = fb.fb_var.yres;
rv = viv_open();
if(rv!=0)
{
fprintf(stderr, "Error opening device\n");
exit(1);
}
printf("Succesfully opened device\n");
etna_ctx *ctx = 0;
struct pipe_context *pipe = 0;
etna_bswap_buffers *buffers = 0;
if(etna_create(&ctx) != ETNA_OK ||
etna_bswap_create(ctx, &buffers, (etna_set_buffer_cb_t)&fb_set_buffer, (etna_copy_buffer_cb_t)&etna_fb_copy_buffer, &fb) != ETNA_OK ||
(pipe = etna_new_pipe_context(ctx)) == NULL)
{
printf("Unable to create etna context\n");
exit(1);
}
struct pipe_resource *tex_resource = etna_pipe_create_2d(pipe, ETNA_IS_TEXTURE | ETNA_IS_CUBEMAP, FMT_X8R8G8B8, 1, 1, 0);
uint32_t tex_data[6] = {
0xffff0000,
0xff00ff00,
0xff0000ff,
0xffffff00,
0xffff00ff,
0xffffffff
};
for(int layerid=0; layerid<6; ++layerid)
etna_pipe_inline_write(pipe, tex_resource, layerid, 0, &tex_data[layerid], sizeof(uint32_t));
/* resources */
struct pipe_resource *rt_resource = etna_pipe_create_2d(pipe, ETNA_IS_RENDER_TARGET, PIPE_FORMAT_B8G8R8X8_UNORM, width, height, 0);
struct pipe_resource *z_resource = etna_pipe_create_2d(pipe, ETNA_IS_RENDER_TARGET, PIPE_FORMAT_Z16_UNORM, width, height, 0);
struct pipe_resource *vtx_resource = etna_pipe_create_buffer(pipe, ETNA_IS_VERTEX, VERTEX_BUFFER_SIZE);
struct pipe_resource *idx_resource = etna_pipe_create_buffer(pipe, ETNA_IS_INDEX, VERTEX_BUFFER_SIZE);
/* bind render target to framebuffer */
etna_fb_bind_resource(&fb, rt_resource);
/* Phew, now we got all the memory we need.
* Write interleaved attribute vertex stream.
* Unlike the GL example we only do this once, not every time glDrawArrays is called, the same would be accomplished
* from GL by using a vertex buffer object.
*/
GLfloat *vVertices;
GLfloat *vNormals;
GLfloat *vTexCoords;
GLushort *vIndices;
int numVertices = 0;
int numIndices = esGenSphere(20, 1.0f, &vVertices, &vNormals,
&vTexCoords, &vIndices, &numVertices);
float *vtx_logical = etna_pipe_get_resource_ptr(pipe, vtx_resource, 0, 0);
for(int vert=0; vert<numVertices; ++vert)
{
int dest_idx = vert * (3 + 3 + 2);
for(int comp=0; comp<3; ++comp)
vtx_logical[dest_idx+comp+0] = vVertices[vert*3 + comp]; /* 0 */
for(int comp=0; comp<3; ++comp)
vtx_logical[dest_idx+comp+3] = vNormals[vert*3 + comp]; /* 1 */
for(int comp=0; comp<2; ++comp)
vtx_logical[dest_idx+comp+6] = vTexCoords[vert*2 + comp]; /* 2 */
}
memcpy(idx_resource->levels[0].logical, vIndices, numIndices*sizeof(GLushort));
/* compile gallium3d states */
void *blend = pipe->create_blend_state(pipe, &(struct pipe_blend_state) {
.rt[0] = {
.blend_enable = 0,
.rgb_func = PIPE_BLEND_ADD,
.rgb_src_factor = PIPE_BLENDFACTOR_ONE,
.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO,
.alpha_func = PIPE_BLEND_ADD,
.alpha_src_factor = PIPE_BLENDFACTOR_ONE,
.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO,
.colormask = 0xf
}
});
void Mesh::makeMeASphere(float size, int resolution) {
nbrOfIndices = esGenSphere(resolution, size, positions, normals, texCoords, triangles);
}
// �뀺�씠�뜑�� �봽濡쒓렇�옩 媛앹껜 珥덇린�솕.
int InitShaderAndProgram() {
if (!mUserData)
return 0;
char* vShaderStr = AssetManager::getInstance()->readFile(
"YHBumpShader.vert");
char* fShaderStr = AssetManager::getInstance()->readFile(
"YHBumpShader.frag");
GLuint vertexShader;
GLuint fragmentShader;
GLuint programObject;
GLint linked;
// �젙�젏怨� �봽�옒洹몃㉫�듃 �뀺�씠�뜑 �쟻�옱.
vertexShader = LoadShader(GL_VERTEX_SHADER, vShaderStr);
fragmentShader = LoadShader(GL_FRAGMENT_SHADER, fShaderStr);
// �봽濡쒓렇�옩 媛앹껜 �깮�꽦.
programObject = glCreateProgram();
if (programObject == 0)
return 0;
glAttachShader(programObject, vertexShader);
glAttachShader(programObject, fragmentShader);
// �봽濡쒓렇�옩 留곹겕.
glLinkProgram(programObject);
// 留곹겕 �긽�깭 �젏寃�.
glGetProgramiv(programObject, GL_LINK_STATUS, &linked);
if (!linked) {
GLint infoLen = 0;
glGetProgramiv(programObject, GL_INFO_LOG_LENGTH, &infoLen);
if (infoLen > 1) {
char* infoLog = (char*) malloc(sizeof(char) * infoLen);
glGetProgramInfoLog(programObject, infoLen, NULL, infoLog);
ALOGE("Error linking program : %s", infoLog);
free(infoLog);
}
glDeleteProgram(programObject);
return false;
}
// �봽濡쒓렇�옩 媛앹껜 ���옣.
mUserData->programObject = programObject;
// Vertex Shader 遺�遺�.
mUserData->uModelInverseLocation = glGetUniformLocation(
mUserData->programObject, "u_matModelInverse");
mUserData->uViewInverseLocation = glGetUniformLocation(
mUserData->programObject, "u_matViewInverse");
mUserData->uViewProjectionLocation = glGetUniformLocation(
mUserData->programObject, "u_matViewProjection");
mUserData->uLightPosLocation = glGetUniformLocation(
mUserData->programObject, "u_lightPosition");
mUserData->uEyePosLocation = glGetUniformLocation(mUserData->programObject,
"u_eyePosition");
mUserData->mvpLoc = glGetUniformLocation(mUserData->programObject,
"u_mvpMatrix");
// Fragment Shader 遺�遺�.
mUserData->uAmbientLocation = glGetUniformLocation(mUserData->programObject,
"u_ambient");
mUserData->uSpecularLocation = glGetUniformLocation(
mUserData->programObject, "u_specular");
mUserData->uDiffuseLocation = glGetUniformLocation(mUserData->programObject,
"u_diffuse");
mUserData->uSpecularPowerLocation = glGetUniformLocation(
mUserData->programObject, "u_specularPower");
mUserData->sBaseMapLocation = glGetUniformLocation(mUserData->programObject,
"s_baseMap");
mUserData->sNormalMapLocation = glGetUniformLocation(
mUserData->programObject, "s_normalMap");
// �뀓�뒪爾� 濡쒕뵫.
mUserData->textureId[0] = create2DTexture("earth_texture.tga", 1280, 640,
GL_RGB, GL_RGB, true);
mUserData->textureId[1] = create2DTexture("earth_normal.tga", 1280, 640,
GL_RGB, GL_RGB, true);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
// Sphere �깮�꽦.
mNumberOfIndices = esGenSphere(50, 1, &mSphereVertices, &mSphereNormal, &mSphereBinormal, &mSphereTangent,
&mSphereTexCoords, &mSphereIndices);
return true;
}
///
// Initialize the shader and program object
//
void Sphere::init(float width, float height)
{
Drawable::init(width, height);
/*char vShaderStr[] =
"attribute vec4 av4_position; \n"
"uniform mat4 um4_mvp; \n"
"void main() \n"
"{ \n"
" gl_Position = um4_mvp * av4_position; \n"
"} \n";
*/
char vShaderStr[] =
"uniform mat4 um4_MVPMatrix; \n" // A constant representing the combined model/view/projection matrix.
"uniform mat4 um4_MVMatrix; \n" // A constant representing the combined model/view matrix.
"uniform vec3 uv3_LightPos; \n" // The position of the light in eye space.
"uniform vec4 uv4_Color; \n"
"attribute vec4 av4_Position; \n" // Per-vertex position information we will pass in.
"attribute vec3 av3_Normal; \n" // Per-vertex normal information we will pass in.
"varying vec4 v4_Color; \n" // This will be passed into the fragment shader.
"void main() \n" // The entry point for our vertex shader.
"{ \n"
// Transform the vertex into eye space.
" vec3 modelViewVertex = vec3(um4_MVMatrix * av4_Position); \n"
// Transform the normal's orientation into eye space.
" vec3 modelViewNormal = vec3(um4_MVMatrix * vec4(av3_Normal, 0.0)); \n"
// Will be used for attenuation.
" float distance = length(uv3_LightPos - modelViewVertex); \n"
// Get a lighting direction vector from the light to the vertex.
" vec3 lightVector = normalize(uv3_LightPos - modelViewVertex); \n"
// Calculate the dot product of the light vector and vertex normal.
// If the normal and light vector are
// pointing in the same direction then it will get max illumination.
" float diffuse = max(dot(modelViewNormal, lightVector), 0.1); \n"
// Attenuate the light based on distance.
" diffuse = diffuse * (1.0 / (1.0 + (0.25 * distance * distance))); \n"
// Multiply the color by the illumination level. It will be interpolated across the triangle.
" v4_Color = uv4_Color * diffuse; \n"
// gl_Position is a special variable used to store the final position.
// Multiply the vertex by the matrix to get the final point in normalized screen coordinates.
" gl_Position = um4_MVPMatrix * av4_Position; \n"
"} \n";
char fShaderStr[] =
"#ifdef GL_ES \n"
"precision mediump float; \n"
"#endif \n"
"varying vec4 v4_Color; \n"
"void main() \n"
"{ \n"
" gl_FragColor = v4_Color; \n"
"} \n";
esContext.width = width;
esContext.height = height;
// Load the shaders and get a linked program object
userData.programObject = esCreateProgram(vShaderStr, fShaderStr);
userData.positionLoc = glGetAttribLocation(userData.programObject, "av4_Position");
userData.normalsLoc = glGetAttribLocation(userData.programObject, "av3_Normal");
userData.colorLoc = glGetUniformLocation(userData.programObject, "uv4_Color");
userData.mvpLoc = glGetUniformLocation(userData.programObject, "um4_MVPMatrix");
userData.mvLoc = glGetUniformLocation(userData.programObject, "um4_MVMatrix");
userData.lightPosLoc = glGetUniformLocation(userData.programObject, "uv3_LightPos");
userData.numIndices = esGenSphere(60, 0.5f, &userData.vertices,
&userData.normals, NULL, &userData.indices);
}
int main(int argc, char **argv)
{
struct fbdemos_scaffold *fbs = 0;
fbdemo_init(&fbs);
int width = fbs->width;
int height = fbs->height;
struct pipe_context *pipe = fbs->pipe;
/* resources */
struct pipe_resource *rt_resource = fbdemo_create_2d(fbs->screen, PIPE_BIND_RENDER_TARGET, PIPE_FORMAT_B8G8R8X8_UNORM, width, height, 0);
struct pipe_resource *z_resource = fbdemo_create_2d(fbs->screen, PIPE_BIND_RENDER_TARGET, PIPE_FORMAT_Z16_UNORM, width, height, 0);
struct pipe_resource *vtx_resource = pipe_buffer_create(fbs->screen, PIPE_BIND_VERTEX_BUFFER, PIPE_USAGE_IMMUTABLE, VERTEX_BUFFER_SIZE);
struct pipe_resource *idx_resource = pipe_buffer_create(fbs->screen, PIPE_BIND_INDEX_BUFFER, PIPE_USAGE_IMMUTABLE, VERTEX_BUFFER_SIZE);
/* bind render target to framebuffer */
etna_fb_bind_resource(&fbs->fb, rt_resource);
/* Phew, now we got all the memory we need.
* Write interleaved attribute vertex stream.
* Unlike the GL example we only do this once, not every time glDrawArrays is called, the same would be accomplished
* from GL by using a vertex buffer object.
*/
float *vVertices;
float *vNormals;
float *vTexCoords;
uint16_t *vIndices;
int numVertices = 0;
int numIndices = esGenSphere(80, 1.0f, &vVertices, &vNormals,
&vTexCoords, &vIndices, &numVertices);
unsigned vtxStride = 3+3+2;
assert((numVertices * vtxStride*4) < VERTEX_BUFFER_SIZE);
struct pipe_transfer *vtx_transfer = 0;
float *vtx_logical = pipe_buffer_map(pipe, vtx_resource, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_UNSYNCHRONIZED, &vtx_transfer);
for(int vert=0; vert<numVertices; ++vert)
{
int dest_idx = vert * vtxStride;
for(int comp=0; comp<3; ++comp)
vtx_logical[dest_idx+comp+0] = vVertices[vert*3 + comp]; /* 0 */
for(int comp=0; comp<3; ++comp)
vtx_logical[dest_idx+comp+3] = vNormals[vert*3 + comp]; /* 1 */
for(int comp=0; comp<2; ++comp)
vtx_logical[dest_idx+comp+6] = vTexCoords[vert*2 + comp]; /* 2 */
}
pipe_buffer_unmap(pipe, vtx_transfer);
assert((numIndices * 2) < VERTEX_BUFFER_SIZE);
struct pipe_transfer *idx_transfer = 0;
void *idx_logical = pipe_buffer_map(pipe, idx_resource, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_UNSYNCHRONIZED, &idx_transfer);
memcpy(idx_logical, vIndices, numIndices*sizeof(uint16_t));
pipe_buffer_unmap(pipe, idx_transfer);
/* compile gallium3d states */
void *blend = pipe->create_blend_state(pipe, &(struct pipe_blend_state) {
.rt[0] = {
.blend_enable = 0,
.rgb_func = PIPE_BLEND_ADD,
.rgb_src_factor = PIPE_BLENDFACTOR_ONE,
.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO,
.alpha_func = PIPE_BLEND_ADD,
.alpha_src_factor = PIPE_BLENDFACTOR_ONE,
.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO,
.colormask = 0xf
}
});
