static void process_image_data(struct fp_img_dev *dev, char **output, int *output_height) { //pixman stuff taken from libfprint/pixman.c, adapted for my purposes. pixman_image_t *orig, *resized; pixman_transform_t transform; struct vfs0050_dev *vfs_dev = dev->priv; struct vfs0050_line *line, *calibration_line; char *buf = malloc(vfs_dev->scanbuf_idx); int lines = vfs_dev->scanbuf_idx / VFS0050_FRAME_SIZE; int i, x, sum, last_sum, diff; int new_height; //just grab one around middle, there should be 100 calibration_line = (struct vfs0050_line *) ((char *) vfs_dev->calbuf + (50 * VFS0050_FRAME_SIZE)); new_height = 0; for (i = 0; i < lines; i++) { line = (struct vfs0050_line *) ((char *) vfs_dev->scanbuf + (i * VFS0050_FRAME_SIZE)); if (!is_noise(line)) memcpy(buf + (new_height++ * VFS0050_IMG_WIDTH), line->row, VFS0050_IMG_WIDTH); else fp_dbg("removed noise at line: %d\n", i); } orig = pixman_image_create_bits(PIXMAN_a8, VFS0050_IMG_WIDTH, new_height, (uint32_t *) buf, VFS0050_IMG_WIDTH); new_height *= VFS0050_SCALE_FACTOR; //scale for resized image resized = pixman_image_create_bits(PIXMAN_a8, VFS0050_IMG_WIDTH, new_height, NULL, VFS0050_IMG_WIDTH); pixman_transform_init_identity(&transform); pixman_transform_scale(NULL, &transform, pixman_int_to_fixed(1), pixman_double_to_fixed(0.2)); pixman_image_set_transform(orig, &transform); pixman_image_set_filter(orig, PIXMAN_FILTER_BEST, NULL, 0); pixman_image_composite32(PIXMAN_OP_SRC, orig, NULL, resized, 0, 0, 0, 0, 0, 0, VFS0050_IMG_WIDTH, new_height ); memcpy(buf, pixman_image_get_data(resized), VFS0050_IMG_WIDTH * new_height); pixman_image_unref(orig); pixman_image_unref(resized); *output_height = new_height; *output = buf; }
static int pixman_renderer_read_pixels(struct weston_output *output, pixman_format_code_t format, void *pixels, uint32_t x, uint32_t y, uint32_t width, uint32_t height) { struct pixman_output_state *po = get_output_state(output); pixman_transform_t transform; pixman_image_t *out_buf; if (!po->hw_buffer) { errno = ENODEV; return -1; } out_buf = pixman_image_create_bits(format, width, height, pixels, (PIXMAN_FORMAT_BPP(format) / 8) * width); /* Caller expects vflipped source image */ pixman_transform_init_translate(&transform, pixman_int_to_fixed (x), pixman_int_to_fixed (y - pixman_image_get_height (po->hw_buffer))); pixman_transform_scale(&transform, NULL, pixman_fixed_1, pixman_fixed_minus_1); pixman_image_set_transform(po->hw_buffer, &transform); pixman_image_composite32(PIXMAN_OP_SRC, po->hw_buffer, /* src */ NULL /* mask */, out_buf, /* dest */ 0, 0, /* src_x, src_y */ 0, 0, /* mask_x, mask_y */ 0, 0, /* dest_x, dest_y */ pixman_image_get_width (po->hw_buffer), /* width */ pixman_image_get_height (po->hw_buffer) /* height */); pixman_image_set_transform(po->hw_buffer, NULL); pixman_image_unref(out_buf); return 0; }
struct fp_img *fpi_im_resize(struct fp_img *img, unsigned int w_factor, unsigned int h_factor) { int new_width = img->width * w_factor; int new_height = img->height * h_factor; pixman_image_t *orig, *resized; pixman_transform_t transform; struct fp_img *newimg; orig = pixman_image_create_bits(PIXMAN_a8, img->width, img->height, (uint32_t *)img->data, img->width); resized = pixman_image_create_bits(PIXMAN_a8, new_width, new_height, NULL, new_width); pixman_transform_init_identity(&transform); pixman_transform_scale(NULL, &transform, pixman_int_to_fixed(w_factor), pixman_int_to_fixed(h_factor)); pixman_image_set_transform(orig, &transform); pixman_image_set_filter(orig, PIXMAN_FILTER_BILINEAR, NULL, 0); pixman_image_composite32(PIXMAN_OP_SRC, orig, /* src */ NULL, /* mask */ resized, /* dst */ 0, 0, /* src x y */ 0, 0, /* mask x y */ 0, 0, /* dst x y */ new_width, new_height /* width height */ ); newimg = fpi_img_new(new_width * new_height); newimg->width = new_width; newimg->height = new_height; newimg->flags = img->flags; memcpy(newimg->data, pixman_image_get_data(resized), new_width * new_height); pixman_image_unref(orig); pixman_image_unref(resized); return newimg; }
bool mSDLSWInit(struct mSDLRenderer* renderer) { #if !SDL_VERSION_ATLEAST(2, 0, 0) #ifdef COLOR_16_BIT SDL_SetVideoMode(renderer->viewportWidth, renderer->viewportHeight, 16, SDL_DOUBLEBUF | SDL_HWSURFACE); #else SDL_SetVideoMode(renderer->viewportWidth, renderer->viewportHeight, 32, SDL_DOUBLEBUF | SDL_HWSURFACE); #endif #endif unsigned width, height; renderer->core->desiredVideoDimensions(renderer->core, &width, &height); #if SDL_VERSION_ATLEAST(2, 0, 0) renderer->window = SDL_CreateWindow(projectName, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, renderer->viewportWidth, renderer->viewportHeight, SDL_WINDOW_OPENGL | (SDL_WINDOW_FULLSCREEN_DESKTOP * renderer->player.fullscreen)); SDL_GetWindowSize(renderer->window, &renderer->viewportWidth, &renderer->viewportHeight); renderer->player.window = renderer->window; renderer->sdlRenderer = SDL_CreateRenderer(renderer->window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC); #ifdef COLOR_16_BIT #ifdef COLOR_5_6_5 renderer->sdlTex = SDL_CreateTexture(renderer->sdlRenderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, width, height); #else renderer->sdlTex = SDL_CreateTexture(renderer->sdlRenderer, SDL_PIXELFORMAT_ABGR1555, SDL_TEXTUREACCESS_STREAMING, width, height); #endif #else renderer->sdlTex = SDL_CreateTexture(renderer->sdlRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STREAMING, width, height); #endif int stride; SDL_LockTexture(renderer->sdlTex, 0, (void**) &renderer->outputBuffer, &stride); renderer->core->setVideoBuffer(renderer->core, renderer->outputBuffer, stride / BYTES_PER_PIXEL); #else SDL_Surface* surface = SDL_GetVideoSurface(); SDL_LockSurface(surface); if (renderer->ratio == 1) { renderer->core->setVideoBuffer(renderer->core, surface->pixels, surface->pitch / BYTES_PER_PIXEL); } else { #ifdef USE_PIXMAN renderer->outputBuffer = malloc(width * height * BYTES_PER_PIXEL); renderer->core->setVideoBuffer(renderer->core, renderer->outputBuffer, width); #ifdef COLOR_16_BIT #ifdef COLOR_5_6_5 pixman_format_code_t format = PIXMAN_r5g6b5; #else pixman_format_code_t format = PIXMAN_x1b5g5r5; #endif #else pixman_format_code_t format = PIXMAN_x8b8g8r8; #endif renderer->pix = pixman_image_create_bits(format, width, height, renderer->outputBuffer, width * BYTES_PER_PIXEL); renderer->screenpix = pixman_image_create_bits(format, renderer->viewportWidth, renderer->viewportHeight, surface->pixels, surface->pitch); pixman_transform_t transform; pixman_transform_init_identity(&transform); pixman_transform_scale(0, &transform, pixman_int_to_fixed(renderer->ratio), pixman_int_to_fixed(renderer->ratio)); pixman_image_set_transform(renderer->pix, &transform); pixman_image_set_filter(renderer->pix, PIXMAN_FILTER_NEAREST, 0, 0); #else return false; #endif } #endif return true; }
static void repaint_region(struct weston_view *ev, struct weston_output *output, pixman_region32_t *region, pixman_region32_t *surf_region, pixman_op_t pixman_op) { struct pixman_renderer *pr = (struct pixman_renderer *) output->compositor->renderer; struct pixman_surface_state *ps = get_surface_state(ev->surface); struct pixman_output_state *po = get_output_state(output); pixman_region32_t final_region; float view_x, view_y; pixman_transform_t transform; pixman_fixed_t fw, fh; /* The final region to be painted is the intersection of * 'region' and 'surf_region'. However, 'region' is in the global * coordinates, and 'surf_region' is in the surface-local * coordinates */ pixman_region32_init(&final_region); if (surf_region) { pixman_region32_copy(&final_region, surf_region); /* Convert from surface to global coordinates */ if (!ev->transform.enabled) { pixman_region32_translate(&final_region, ev->geometry.x, ev->geometry.y); } else { weston_view_to_global_float(ev, 0, 0, &view_x, &view_y); pixman_region32_translate(&final_region, (int)view_x, (int)view_y); } /* We need to paint the intersection */ pixman_region32_intersect(&final_region, &final_region, region); } else { /* If there is no surface region, just use the global region */ pixman_region32_copy(&final_region, region); } /* Convert from global to output coord */ region_global_to_output(output, &final_region); /* And clip to it */ pixman_image_set_clip_region32 (po->shadow_image, &final_region); /* Set up the source transformation based on the surface position, the output position/transform/scale and the client specified buffer transform/scale */ pixman_transform_init_identity(&transform); pixman_transform_scale(&transform, NULL, pixman_double_to_fixed ((double)1.0/output->current_scale), pixman_double_to_fixed ((double)1.0/output->current_scale)); fw = pixman_int_to_fixed(output->width); fh = pixman_int_to_fixed(output->height); switch (output->transform) { default: case WL_OUTPUT_TRANSFORM_NORMAL: case WL_OUTPUT_TRANSFORM_FLIPPED: break; case WL_OUTPUT_TRANSFORM_90: case WL_OUTPUT_TRANSFORM_FLIPPED_90: pixman_transform_rotate(&transform, NULL, 0, -pixman_fixed_1); pixman_transform_translate(&transform, NULL, 0, fh); break; case WL_OUTPUT_TRANSFORM_180: case WL_OUTPUT_TRANSFORM_FLIPPED_180: pixman_transform_rotate(&transform, NULL, -pixman_fixed_1, 0); pixman_transform_translate(&transform, NULL, fw, fh); break; case WL_OUTPUT_TRANSFORM_270: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_rotate(&transform, NULL, 0, pixman_fixed_1); pixman_transform_translate(&transform, NULL, fw, 0); break; } switch (output->transform) { case WL_OUTPUT_TRANSFORM_FLIPPED: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_180: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_scale(&transform, NULL, pixman_int_to_fixed (-1), pixman_int_to_fixed (1)); pixman_transform_translate(&transform, NULL, fw, 0); break; } pixman_transform_translate(&transform, NULL, pixman_double_to_fixed (output->x), pixman_double_to_fixed (output->y)); if (ev->transform.enabled) { /* Pixman supports only 2D transform matrix, but Weston uses 3D, * so we're omitting Z coordinate here */ pixman_transform_t surface_transform = {{ { D2F(ev->transform.matrix.d[0]), D2F(ev->transform.matrix.d[4]), D2F(ev->transform.matrix.d[12]), }, { D2F(ev->transform.matrix.d[1]), D2F(ev->transform.matrix.d[5]), D2F(ev->transform.matrix.d[13]), }, { D2F(ev->transform.matrix.d[3]), D2F(ev->transform.matrix.d[7]), D2F(ev->transform.matrix.d[15]), } }}; pixman_transform_invert(&surface_transform, &surface_transform); pixman_transform_multiply (&transform, &surface_transform, &transform); } else { pixman_transform_translate(&transform, NULL, pixman_double_to_fixed ((double)-ev->geometry.x), pixman_double_to_fixed ((double)-ev->geometry.y)); } if (ev->surface->buffer_viewport.scaler_set) { double scaler_x, scaler_y, scaler_width, scaler_height; double ratio_x, ratio_y; scaler_x = wl_fixed_to_double(ev->surface->buffer_viewport.src_x); scaler_y = wl_fixed_to_double(ev->surface->buffer_viewport.src_y); scaler_width = wl_fixed_to_double(ev->surface->buffer_viewport.src_width); scaler_height = wl_fixed_to_double(ev->surface->buffer_viewport.src_height); ratio_x = scaler_width / ev->surface->buffer_viewport.dst_width; ratio_y = scaler_height / ev->surface->buffer_viewport.dst_height; pixman_transform_scale(&transform, NULL, pixman_double_to_fixed(ratio_x), pixman_double_to_fixed(ratio_y)); pixman_transform_translate(&transform, NULL, pixman_double_to_fixed(scaler_x), pixman_double_to_fixed(scaler_y)); } pixman_transform_scale(&transform, NULL, pixman_double_to_fixed(ev->surface->buffer_viewport.scale), pixman_double_to_fixed(ev->surface->buffer_viewport.scale)); fw = pixman_int_to_fixed(pixman_image_get_width(ps->image)); fh = pixman_int_to_fixed(pixman_image_get_height(ps->image)); switch (ev->surface->buffer_viewport.transform) { case WL_OUTPUT_TRANSFORM_FLIPPED: case WL_OUTPUT_TRANSFORM_FLIPPED_90: case WL_OUTPUT_TRANSFORM_FLIPPED_180: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_scale(&transform, NULL, pixman_int_to_fixed (-1), pixman_int_to_fixed (1)); pixman_transform_translate(&transform, NULL, fw, 0); break; } switch (ev->surface->buffer_viewport.transform) { default: case WL_OUTPUT_TRANSFORM_NORMAL: case WL_OUTPUT_TRANSFORM_FLIPPED: break; case WL_OUTPUT_TRANSFORM_90: case WL_OUTPUT_TRANSFORM_FLIPPED_90: pixman_transform_rotate(&transform, NULL, 0, pixman_fixed_1); pixman_transform_translate(&transform, NULL, fh, 0); break; case WL_OUTPUT_TRANSFORM_180: case WL_OUTPUT_TRANSFORM_FLIPPED_180: pixman_transform_rotate(&transform, NULL, -pixman_fixed_1, 0); pixman_transform_translate(&transform, NULL, fw, fh); break; case WL_OUTPUT_TRANSFORM_270: case WL_OUTPUT_TRANSFORM_FLIPPED_270: pixman_transform_rotate(&transform, NULL, 0, -pixman_fixed_1); pixman_transform_translate(&transform, NULL, 0, fw); break; } pixman_image_set_transform(ps->image, &transform); if (ev->transform.enabled || output->current_scale != ev->surface->buffer_viewport.scale) pixman_image_set_filter(ps->image, PIXMAN_FILTER_BILINEAR, NULL, 0); else pixman_image_set_filter(ps->image, PIXMAN_FILTER_NEAREST, NULL, 0); if (ps->buffer_ref.buffer) wl_shm_buffer_begin_access(ps->buffer_ref.buffer->shm_buffer); pixman_image_composite32(pixman_op, ps->image, /* src */ NULL /* mask */, po->shadow_image, /* dest */ 0, 0, /* src_x, src_y */ 0, 0, /* mask_x, mask_y */ 0, 0, /* dest_x, dest_y */ pixman_image_get_width (po->shadow_image), /* width */ pixman_image_get_height (po->shadow_image) /* height */); if (ps->buffer_ref.buffer) wl_shm_buffer_end_access(ps->buffer_ref.buffer->shm_buffer); if (pr->repaint_debug) pixman_image_composite32(PIXMAN_OP_OVER, pr->debug_color, /* src */ NULL /* mask */, po->shadow_image, /* dest */ 0, 0, /* src_x, src_y */ 0, 0, /* mask_x, mask_y */ 0, 0, /* dest_x, dest_y */ pixman_image_get_width (po->shadow_image), /* width */ pixman_image_get_height (po->shadow_image) /* height */); pixman_image_set_clip_region32 (po->shadow_image, NULL); pixman_region32_fini(&final_region); }
int main (int argc, char **argv) { pixman_transform_t transform; pixman_image_t *src_img, *dest_img; int i, j; enable_fp_exceptions (); dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, NULL, 0); pixman_transform_init_identity (&transform); /* * The create_radial() function returns gradients centered in the * origin and whose interesting part fits a 1x1 square. We want to * paint these gradients on a SIZExSIZE square and to make things * easier we want the origin in the top-left corner of the square * we want to see. */ pixman_transform_translate (NULL, &transform, pixman_double_to_fixed (0.5), pixman_double_to_fixed (0.5)); pixman_transform_scale (NULL, &transform, pixman_double_to_fixed (SIZE), pixman_double_to_fixed (SIZE)); /* * Gradients are evaluated at the center of each pixel, so we need * to translate by half a pixel to trigger some interesting * cornercases. In particular, the original implementation of PDF * radial gradients tried to divide by 0 when using this transform * on the "tangent circles" cases. */ pixman_transform_translate (NULL, &transform, pixman_double_to_fixed (0.5), pixman_double_to_fixed (0.5)); for (i = 0; i < NUM_GRADIENTS; i++) { src_img = create_radial (i); pixman_image_set_transform (src_img, &transform); for (j = 0; j < NUM_REPEAT; j++) { pixman_image_set_repeat (src_img, repeat[j]); pixman_image_composite32 (PIXMAN_OP_OVER, src_img, NULL, dest_img, 0, 0, 0, 0, i * SIZE, j * SIZE, SIZE, SIZE); } pixman_image_unref (src_img); } show_image (dest_img); pixman_image_unref (dest_img); return 0; }