static void update_viewport(GLint x, GLint y, GLsizei width, GLsizei height) {
viewport_state_t *vs = &state.viewport;
vs->x = x, vs->y = y;
vs->width = width, vs->height = height;
vs->nwidth = npot(width);
vs->nheight = npot(height);
}
void init_raster() {
if (!state.viewport.width || !state.viewport.height) {
glGetIntegerv(GL_VIEWPORT, (GLint *)&state.viewport);
state.viewport.nwidth = npot(state.viewport.width);
state.viewport.nheight = npot(state.viewport.height);
}
if (! state.raster.buf) {
state.raster.buf = (GLubyte *)malloc(4 * state.viewport.nwidth * state.viewport.nheight * sizeof(GLubyte));
}
}
void glViewport(GLint x, GLint y, GLsizei width, GLsizei height) {
PUSH_IF_COMPILING(glViewport);
PROXY_GLES(glViewport);
if (state.raster.buf) {
render_raster();
}
gles_glViewport(x, y, width, height);
viewport_state_t *viewport = &state.viewport;
viewport->x = x;
viewport->y = y;
viewport->width = width;
viewport->height = height;
viewport->nwidth = npot(width);
viewport->nheight = npot(height);
}
static int _check_resize(yrc_accum_t* accum, size_t desired) {
size_t new_size;
char* new_head;
if (accum->offs + desired <= accum->size) {
return 0;
}
new_size = npot(accum->offs + desired);
new_head = realloc(accum->head, new_size);
if (new_head == NULL) {
return 1;
}
/* if successful, the old memory will be freed by realloc */
accum->head = new_head;
return 0;
}
static int externalize(yrc_str_t* str, const char* data, size_t cur, size_t sz) {
size_t toalloc;
char* ptr;
toalloc = npot(cur + sz);
ptr = malloc(toalloc);
if (ptr == NULL) {
return 1;
}
memcpy(ptr, str->interned.data, cur);
memcpy(ptr + cur, data, sz);
str->externed.avail = toalloc;
str->externed.size = cur + sz;
str->externed.data = ptr;
return 0;
}
static int do_externed_pushv(struct yrc_extern_str* exstr, const char* data, size_t sz) {
size_t newsz;
char* ptr;
newsz = exstr->size + sz;
if (newsz <= exstr->avail) {
memcpy(exstr->data + exstr->size, data, sz);
exstr->size = newsz;
return 0;
}
newsz = npot(newsz);
ptr = malloc(newsz);
if (ptr == NULL) {
return 1;
}
memcpy(ptr, exstr->data, exstr->size);
memcpy(ptr + exstr->size, data, sz);
exstr->avail = newsz;
exstr->data = ptr;
exstr->size = exstr->size + sz;
return 0;
}
void CGLCG::Render(GLuint &origTex, xySize textureSize, xySize inputSize, xySize viewportSize, xySize windowSize)
{
GLenum error;
frameCnt++;
CGprofile vertexProfile, fragmentProfile;
if(!shaderLoaded)
return;
vertexProfile = cgGLGetLatestProfile(CG_GL_VERTEX);
fragmentProfile = cgGLGetLatestProfile(CG_GL_FRAGMENT);
cgGLEnableProfile(vertexProfile);
cgGLEnableProfile(fragmentProfile);
/* set up our dummy pass for easier loop code
*/
shaderPasses[0].tex = origTex;
shaderPasses[0].outputSize = inputSize;
shaderPasses[0].textureSize = textureSize;
/* loop through all real passes
*/
for(int i=1;i<shaderPasses.size();i++) {
switch(shaderPasses[i].scaleParams.scaleTypeX) {
case CG_SCALE_ABSOLUTE:
shaderPasses[i].outputSize.x = (double)shaderPasses[i].scaleParams.absX;
break;
case CG_SCALE_SOURCE:
shaderPasses[i].outputSize.x = shaderPasses[i-1].outputSize.x * shaderPasses[i].scaleParams.scaleX;
break;
case CG_SCALE_VIEWPORT:
shaderPasses[i].outputSize.x = viewportSize.x * shaderPasses[i].scaleParams.scaleX;
break;
default:
shaderPasses[i].outputSize.x = viewportSize.x;
}
switch(shaderPasses[i].scaleParams.scaleTypeY) {
case CG_SCALE_ABSOLUTE:
shaderPasses[i].outputSize.y = (double)shaderPasses[i].scaleParams.absY;
break;
case CG_SCALE_SOURCE:
shaderPasses[i].outputSize.y = shaderPasses[i-1].outputSize.y * shaderPasses[i].scaleParams.scaleY;
break;
case CG_SCALE_VIEWPORT:
shaderPasses[i].outputSize.y = viewportSize.y * shaderPasses[i].scaleParams.scaleY;
break;
default:
shaderPasses[i].outputSize.y = viewportSize.y;
}
/* use next power of two in both directions
*/
float texSize = npot(max(shaderPasses[i].outputSize.x,shaderPasses[i].outputSize.y));
shaderPasses[i].textureSize.x = shaderPasses[i].textureSize.y = texSize;
/* set size of output texture
*/
glBindTexture(GL_TEXTURE_2D,shaderPasses[i].tex);
glTexImage2D(GL_TEXTURE_2D,0,(shaderPasses[i].floatFbo?GL_RGBA32F:GL_RGBA),(unsigned int)shaderPasses[i].textureSize.x,
(unsigned int)shaderPasses[i].textureSize.y,0,GL_RGBA,GL_UNSIGNED_INT_8_8_8_8,NULL);
/* viewport determines the area we render into the output texture
*/
glViewport(0,0,shaderPasses[i].outputSize.x,shaderPasses[i].outputSize.y);
/* set up framebuffer and attach output texture
*/
glBindFramebuffer(GL_FRAMEBUFFER,shaderPasses[i].fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, shaderPasses[i].tex, 0);
/* set up input texture (output of previous pass) and apply filter settings
*/
glBindTexture(GL_TEXTURE_2D,shaderPasses[i-1].tex);
glPixelStorei(GL_UNPACK_ROW_LENGTH, (GLint)shaderPasses[i-1].textureSize.x);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
shaderPasses[i].linearFilter?GL_LINEAR:GL_NEAREST);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
shaderPasses[i].linearFilter?GL_LINEAR:GL_NEAREST);
/* calculate tex coords first since we pass them to the shader
*/
setTexCoords(i,shaderPasses[i-1].outputSize,shaderPasses[i-1].textureSize);
setShaderVars(i);
cgGLBindProgram(shaderPasses[i].cgVertexProgram);
cgGLBindProgram(shaderPasses[i].cgFragmentProgram);
glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
glClear(GL_COLOR_BUFFER_BIT);
glDrawArrays (GL_QUADS, 0, 4);
/* reset client states enabled during setShaderVars
*/
resetAttribParams();
}
/* disable framebuffer
*/
glBindFramebuffer(GL_FRAMEBUFFER,0);
/* set last PREV texture as original, push current texture and
sizes to the front of the PREV deque and make sure the new
original texture has the same size as the old one
*/
origTex = prevPasses.back().tex;
prevPasses.pop_back();
prevPass pass;
pass.videoSize = inputSize;
pass.textureSize = textureSize;
pass.tex = shaderPasses[0].tex;
memcpy(pass.texCoords,shaderPasses[1].texcoords,sizeof(pass.texCoords));
prevPasses.push_front(pass);
glBindTexture(GL_TEXTURE_2D,origTex);
glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,textureSize.x,textureSize.y,0,GL_RGB,GL_UNSIGNED_SHORT_5_6_5,NULL);
/* bind output of last pass to be rendered on the backbuffer
*/
glBindTexture(GL_TEXTURE_2D,shaderPasses.back().tex);
glPixelStorei(GL_UNPACK_ROW_LENGTH, (GLint)shaderPasses.back().textureSize.x);
/* calculate and apply viewport and texture coordinates to
that will be used in the main ogl code
*/
RECT displayRect=CalculateDisplayRect(shaderPasses.back().outputSize.x,shaderPasses.back().outputSize.y,windowSize.x,windowSize.y);
glViewport(displayRect.left,windowSize.y-displayRect.bottom,displayRect.right-displayRect.left,displayRect.bottom-displayRect.top);
setTexCoords(shaderPasses.size()-1,shaderPasses.back().outputSize,shaderPasses.back().textureSize,true);
/* render to backbuffer without shaders
*/
cgGLDisableProfile(vertexProfile);
cgGLDisableProfile(fragmentProfile);
}
void render_raster() {
if (!viewport.width || !viewport.height || !raster)
return;
// FIXME
#ifndef USE_ES2
glPushAttrib(GL_TEXTURE_BIT | GL_ENABLE_BIT);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
GLfloat vert[] = {
-1, -1, 0,
1, -1, 0,
1, 1, 0,
-1, 1, 0,
};
float sw = viewport.width / (GLfloat)npot(viewport.width);
float sh = viewport.height / (GLfloat)npot(viewport.height);
GLfloat tex[] = {
0, sh,
sw, sh,
sw, 0,
0, 0,
};
glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT | GL_CLIENT_PIXEL_STORE_BIT);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, vert);
glTexCoordPointer(2, GL_FLOAT, 0, tex);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, npot(viewport.width), npot(viewport.height),
0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, viewport.width, viewport.height,
GL_RGBA, GL_UNSIGNED_BYTE, raster);
LOAD_GLES(glDrawArrays);
gles_glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDeleteTextures(1, &texture);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glPopClientAttrib();
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
#endif
free(raster);
raster = NULL;
}
void CD3DCG::Render(LPDIRECT3DTEXTURE9 &origTex, D3DXVECTOR2 textureSize,
D3DXVECTOR2 inputSize, D3DXVECTOR2 viewportSize, D3DXVECTOR2 windowSize)
{
LPDIRECT3DSURFACE9 pRenderSurface = NULL,pBackBuffer = NULL;
frameCnt++;
if(!shaderLoaded)
return;
/* save back buffer render target
*/
pDevice->GetRenderTarget(0,&pBackBuffer);
/* pass 0 represents the original texture
*/
shaderPasses[0].tex = origTex;
shaderPasses[0].outputSize = inputSize;
shaderPasses[0].textureSize = textureSize;
calculateMatrix();
for(int i=1;i<shaderPasses.size();i++) {
switch(shaderPasses[i].scaleParams.scaleTypeX) {
case CG_SCALE_ABSOLUTE:
shaderPasses[i].outputSize.x = (double)shaderPasses[i].scaleParams.absX;
break;
case CG_SCALE_SOURCE:
shaderPasses[i].outputSize.x = shaderPasses[i-1].outputSize.x * shaderPasses[i].scaleParams.scaleX;
break;
case CG_SCALE_VIEWPORT:
shaderPasses[i].outputSize.x = viewportSize.x * shaderPasses[i].scaleParams.scaleX;
break;
default:
shaderPasses[i].outputSize.x = viewportSize.x;
}
switch(shaderPasses[i].scaleParams.scaleTypeY) {
case CG_SCALE_ABSOLUTE:
shaderPasses[i].outputSize.y = (double)shaderPasses[i].scaleParams.absY;
break;
case CG_SCALE_SOURCE:
shaderPasses[i].outputSize.y = shaderPasses[i-1].outputSize.y * shaderPasses[i].scaleParams.scaleY;
break;
case CG_SCALE_VIEWPORT:
shaderPasses[i].outputSize.y = viewportSize.y * shaderPasses[i].scaleParams.scaleY;
break;
default:
shaderPasses[i].outputSize.y = viewportSize.y;
}
float texSize = npot(max(shaderPasses[i].outputSize.x,shaderPasses[i].outputSize.y));
/* make sure the render target exists and has an appropriate size,
then set as current render target with last pass as source
*/
ensureTextureSize(shaderPasses[i].tex,shaderPasses[i].textureSize,D3DXVECTOR2(texSize,texSize),true);
shaderPasses[i].tex->GetSurfaceLevel(0,&pRenderSurface);
pDevice->SetTexture(0, shaderPasses[i-1].tex);
pDevice->SetRenderTarget(0,pRenderSurface);
pRenderSurface->Release();
/* set vertex declaration of current pass, update vertex
buffer and set base streams
*/
pDevice->SetVertexDeclaration(shaderPasses[i].vertexDeclaration);
setVertexStream(shaderPasses[i].vertexBuffer,
shaderPasses[i-1].outputSize,shaderPasses[i-1].textureSize,shaderPasses[i].outputSize);
pDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_BORDER);
pDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_BORDER);
pDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, shaderPasses[i].linearFilter?D3DTEXF_LINEAR:D3DTEXF_POINT);
pDevice->SetSamplerState(0, D3DSAMP_MINFILTER, shaderPasses[i].linearFilter?D3DTEXF_LINEAR:D3DTEXF_POINT);
/* shader vars need to be set after the base vertex streams
have been set so they can override them
*/
setShaderVars(i);
cgD3D9BindProgram(shaderPasses[i].cgVertexProgram);
checkForCgError("Binding vertex program");
cgD3D9BindProgram(shaderPasses[i].cgFragmentProgram);
checkForCgError("Binding fragment program");
/* viewport defines output size
*/
setViewport(0,0,shaderPasses[i].outputSize.x,shaderPasses[i].outputSize.y);
pDevice->BeginScene();
pDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP,0,2);
pDevice->EndScene();
}
/* take oldes PREV out of deque, make sure it has
the same size as the current texture and
then set it up as new original texture
*/
prevPass &oldestPrev = prevPasses.back();
ensureTextureSize(oldestPrev.tex,oldestPrev.textureSize,textureSize,false);
if(oldestPrev.vertexBuffer)
oldestPrev.vertexBuffer->Release();
origTex = oldestPrev.tex;
prevPasses.pop_back();
/* push current original with corresponding vertex
buffer to front of PREV deque
*/
shaderPasses[0].vertexBuffer = shaderPasses[1].vertexBuffer;
prevPasses.push_front(prevPass(shaderPasses[0]));
/* create new vertex buffer so that next render call
will not overwrite the PREV
*/
pDevice->CreateVertexBuffer(sizeof(VERTEX)*4,D3DUSAGE_WRITEONLY,0,D3DPOOL_MANAGED,&shaderPasses[1].vertexBuffer,NULL);
/* set up last pass texture, backbuffer and viewport
for final display pass without shaders
*/
pDevice->SetTexture(0, shaderPasses.back().tex);
pDevice->SetRenderTarget(0,pBackBuffer);
pBackBuffer->Release();
RECT displayRect=CalculateDisplayRect(shaderPasses.back().outputSize.x,shaderPasses.back().outputSize.y,windowSize.x,windowSize.y);
setViewport(displayRect.left,displayRect.top,displayRect.right - displayRect.left,displayRect.bottom - displayRect.top);
setVertexStream(shaderPasses.back().vertexBuffer,
shaderPasses.back().outputSize,shaderPasses.back().textureSize,
D3DXVECTOR2(displayRect.right - displayRect.left,displayRect.bottom - displayRect.top));
pDevice->SetVertexShader(NULL);
pDevice->SetPixelShader(NULL);
}
