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test2/source/blender/editors/space_sequencer/sequencer_preview_draw.cc
Aras Pranckevicius cc2c6692c0 Cleanup: Name more IMB things as "byte" or "float" instead of "rect" and "rectFloat" 
- IB_rect -> IB_byte_data
- IB_rectfloat -> IB_float_data
- Rename some functions:
	- IMB_get_rect_len -> IMB_get_pixel_count
	- IMB_rect_from_float -> IMB_byte_from_float
	- IMB_float_from_rect_ex -> IMB_float_from_byte_ex
	- IMB_float_from_rect -> IMB_float_from_byte
	- imb_addrectImBuf -> IMB_alloc_byte_pixels
	- imb_freerectImBuf -> IMB_free_byte_pixels
	- imb_addrectfloatImBuf -> IMB_alloc_float_pixels
	- imb_freerectfloatImBuf -> IMB_free_float_pixels
	- imb_freemipmapImBuf -> IMB_free_mipmaps
	- imb_freerectImbuf_all -> IMB_free_all_data
- Remove IB_multiview (not used at all)
- Remove obsolete "module" comments in public IMB headers

Pull Request: https://projects.blender.org/blender/blender/pulls/135348
2025-03-03 17:11:45 +01:00

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/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup spseq
*/
#include <algorithm>
#include <cmath>
#include <cstring>
#include "BLF_api.hh"
#include "BLI_index_range.hh"
#include "BLI_math_matrix.hh"
#include "BLI_math_matrix_types.hh"
#include "BLI_math_rotation.h"
#include "BLI_math_vector_types.hh"
#include "BLI_rect.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"
#include "BLI_vector.hh"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "DNA_sequence_types.h"
#include "DNA_space_types.h"
#include "DNA_view2d_types.h"
#include "BKE_context.hh"
#include "BKE_global.hh"
#include "BKE_scene.hh"
#include "IMB_colormanagement.hh"
#include "IMB_imbuf.hh"
#include "IMB_imbuf_types.hh"
#include "GPU_framebuffer.hh"
#include "GPU_immediate.hh"
#include "GPU_immediate_util.hh"
#include "GPU_matrix.hh"
#include "GPU_primitive.hh"
#include "GPU_state.hh"
#include "GPU_viewport.hh"
#include "ED_gpencil_legacy.hh"
#include "ED_screen.hh"
#include "ED_sequencer.hh"
#include "ED_space_api.hh"
#include "ED_util.hh"
#include "BIF_glutil.hh"
#include "SEQ_channels.hh"
#include "SEQ_effects.hh"
#include "SEQ_iterator.hh"
#include "SEQ_prefetch.hh"
#include "SEQ_proxy.hh"
#include "SEQ_render.hh"
#include "SEQ_select.hh"
#include "SEQ_sequencer.hh"
#include "SEQ_time.hh"
#include "SEQ_transform.hh"
#include "UI_interface.hh"
#include "UI_resources.hh"
#include "UI_view2d.hh"
#include "WM_api.hh"
#include "WM_types.hh"
#include "sequencer_intern.hh"
#include "sequencer_quads_batch.hh"
#include "sequencer_scopes.hh"
static Strip *special_seq_update = nullptr;
void sequencer_special_update_set(Strip *strip)
{
special_seq_update = strip;
}
Strip *ED_sequencer_special_preview_get()
{
return special_seq_update;
}
/**
* Similar to `mouseover_strips_sorted_get`, but disregards padded strip handles. This allows for
* precision when previewing strips through a scrubbing operation.
*/
static Strip *mouseover_strip_get(const Scene *scene, const View2D *v2d, const int mval[2])
{
float mouse_co[2];
UI_view2d_region_to_view(v2d, mval[0], mval[1], &mouse_co[0], &mouse_co[1]);
blender::Vector<Strip *> visible = sequencer_visible_strips_get(scene, v2d);
int mouse_channel = int(mouse_co[1]);
for (Strip *strip : visible) {
if (strip->machine != mouse_channel) {
continue;
}
rctf body;
strip_rectf(scene, strip, &body);
if (BLI_rctf_isect_pt_v(&body, mouse_co)) {
return strip;
}
}
return nullptr;
}
void ED_sequencer_special_preview_set(bContext *C, const int mval[2])
{
Scene *scene = CTX_data_scene(C);
ARegion *region = CTX_wm_region(C);
Strip *strip = mouseover_strip_get(scene, &region->v2d, mval);
if (strip != nullptr && strip->type != STRIP_TYPE_SOUND_RAM) {
sequencer_special_update_set(strip);
}
}
void ED_sequencer_special_preview_clear()
{
sequencer_special_update_set(nullptr);
}
ImBuf *sequencer_ibuf_get(const bContext *C,
int timeline_frame,
int frame_ofs,
const char *viewname)
{
Main *bmain = CTX_data_main(C);
ARegion *region = CTX_wm_region(C);
Depsgraph *depsgraph = CTX_data_expect_evaluated_depsgraph(C);
Scene *scene = CTX_data_scene(C);
SpaceSeq *sseq = CTX_wm_space_seq(C);
bScreen *screen = CTX_wm_screen(C);
SeqRenderData context = {nullptr};
ImBuf *ibuf;
int rectx, recty;
double render_size;
short is_break = G.is_break;
if (sseq->render_size == SEQ_RENDER_SIZE_NONE) {
return nullptr;
}
if (sseq->render_size == SEQ_RENDER_SIZE_SCENE) {
render_size = scene->r.size / 100.0;
}
else {
render_size = SEQ_rendersize_to_scale_factor(sseq->render_size);
}
rectx = roundf(render_size * scene->r.xsch);
recty = roundf(render_size * scene->r.ysch);
SEQ_render_new_render_data(
bmain, depsgraph, scene, rectx, recty, sseq->render_size, false, &context);
context.view_id = BKE_scene_multiview_view_id_get(&scene->r, viewname);
context.use_proxies = (sseq->flag & SEQ_USE_PROXIES) != 0;
context.is_playing = screen->animtimer != nullptr;
context.is_scrubbing = screen->scrubbing;
/* Sequencer could start rendering, in this case we need to be sure it wouldn't be
* canceled by Escape pressed somewhere in the past. */
G.is_break = false;
GPUViewport *viewport = WM_draw_region_get_bound_viewport(region);
GPUFrameBuffer *fb = GPU_framebuffer_active_get();
if (viewport) {
/* Unbind viewport to release the DRW context. */
GPU_viewport_unbind(viewport);
}
else {
/* Rendering can change OGL context. Save & Restore frame-buffer. */
GPU_framebuffer_restore();
}
if (ED_sequencer_special_preview_get()) {
ibuf = SEQ_render_give_ibuf_direct(
&context, timeline_frame + frame_ofs, ED_sequencer_special_preview_get());
}
else {
ibuf = SEQ_render_give_ibuf(&context, timeline_frame + frame_ofs, sseq->chanshown);
}
if (viewport) {
/* Follows same logic as wm_draw_window_offscreen to make sure to restore the same
* viewport. */
int view = (sseq->multiview_eye == STEREO_RIGHT_ID) ? 1 : 0;
GPU_viewport_bind(viewport, view, &region->winrct);
}
else if (fb) {
GPU_framebuffer_bind(fb);
}
/* Restore state so real rendering would be canceled if needed. */
G.is_break = is_break;
return ibuf;
}
static ImBuf *sequencer_make_scope(Scene *scene,
ImBuf *ibuf,
ImBuf *(*make_scope_fn)(const ImBuf *ibuf))
{
ImBuf *display_ibuf = IMB_dupImBuf(ibuf);
ImBuf *scope;
IMB_colormanagement_imbuf_make_display_space(
display_ibuf, &scene->view_settings, &scene->display_settings);
scope = make_scope_fn(display_ibuf);
IMB_freeImBuf(display_ibuf);
return scope;
}
static void sequencer_display_size(Scene *scene, float r_viewrect[2])
{
r_viewrect[0] = float(scene->r.xsch);
r_viewrect[1] = float(scene->r.ysch);
r_viewrect[0] *= scene->r.xasp / scene->r.yasp;
}
static void sequencer_draw_gpencil_overlay(const bContext *C)
{
/* Draw grease-pencil (image aligned). */
ED_annotation_draw_2dimage(C);
/* Orthographic at pixel level. */
UI_view2d_view_restore(C);
/* Draw grease-pencil (screen aligned). */
ED_annotation_draw_view2d(C, false);
}
/**
* Draw content and safety borders.
*/
static void sequencer_draw_borders_overlay(const SpaceSeq *sseq,
const View2D *v2d,
const Scene *scene)
{
float x1 = v2d->tot.xmin;
float y1 = v2d->tot.ymin;
float x2 = v2d->tot.xmax;
float y2 = v2d->tot.ymax;
GPU_line_width(1.0f);
/* Draw border. */
const uint shdr_pos = GPU_vertformat_attr_add(
immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_LINE_DASHED_UNIFORM_COLOR);
float viewport_size[4];
GPU_viewport_size_get_f(viewport_size);
immUniform2f("viewport_size", viewport_size[2] / UI_SCALE_FAC, viewport_size[3] / UI_SCALE_FAC);
immUniformThemeColor(TH_BACK);
immUniform1i("colors_len", 0); /* Simple dashes. */
immUniform1f("dash_width", 6.0f);
immUniform1f("udash_factor", 0.5f);
imm_draw_box_wire_2d(shdr_pos, x1 - 0.5f, y1 - 0.5f, x2 + 0.5f, y2 + 0.5f);
/* Draw safety border. */
if (sseq->preview_overlay.flag & SEQ_PREVIEW_SHOW_SAFE_MARGINS) {
immUniformThemeColorBlend(TH_VIEW_OVERLAY, TH_BACK, 0.25f);
rctf rect;
rect.xmin = x1;
rect.xmax = x2;
rect.ymin = y1;
rect.ymax = y2;
UI_draw_safe_areas(shdr_pos, &rect, scene->safe_areas.title, scene->safe_areas.action);
if (sseq->preview_overlay.flag & SEQ_PREVIEW_SHOW_SAFE_CENTER) {
UI_draw_safe_areas(
shdr_pos, &rect, scene->safe_areas.title_center, scene->safe_areas.action_center);
}
}
immUnbindProgram();
}
#if 0
void sequencer_draw_maskedit(const bContext *C, Scene *scene, ARegion *region, SpaceSeq *sseq)
{
/* NOTE: sequencer mask editing isn't finished, the draw code is working but editing not.
* For now just disable drawing since the strip frame will likely be offset. */
// if (sc->mode == SC_MODE_MASKEDIT)
if (0 && sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
Mask *mask = SEQ_active_mask_get(scene);
if (mask) {
int width, height;
float aspx = 1.0f, aspy = 1.0f;
// ED_mask_get_size(C, &width, &height);
// Scene *scene = CTX_data_scene(C);
BKE_render_resolution(&scene->r, false, &width, &height);
ED_mask_draw_region(mask,
region,
0,
0,
0, /* TODO */
width,
height,
aspx,
aspy,
false,
true,
nullptr,
C);
}
}
}
#endif
/* Force redraw, when prefetching and using cache view. */
static void seq_prefetch_wm_notify(const bContext *C, Scene *scene)
{
if (SEQ_prefetch_need_redraw(C, scene)) {
WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER, nullptr);
}
}
static void *sequencer_OCIO_transform_ibuf(const bContext *C,
ImBuf *ibuf,
bool *r_glsl_used,
eGPUTextureFormat *r_format,
eGPUDataFormat *r_data,
void **r_buffer_cache_handle)
{
void *display_buffer;
bool force_fallback = false;
*r_glsl_used = false;
force_fallback |= (ED_draw_imbuf_method(ibuf) != IMAGE_DRAW_METHOD_GLSL);
force_fallback |= (ibuf->dither != 0.0f);
/* Default */
*r_format = GPU_RGBA8;
*r_data = GPU_DATA_UBYTE;
/* Fallback to CPU based color space conversion. */
if (force_fallback) {
*r_glsl_used = false;
display_buffer = nullptr;
}
else if (ibuf->float_buffer.data) {
display_buffer = ibuf->float_buffer.data;
*r_data = GPU_DATA_FLOAT;
if (ibuf->channels == 4) {
*r_format = GPU_RGBA32F;
}
else if (ibuf->channels == 3) {
/* Alpha is implicitly 1. */
*r_format = GPU_RGB32F;
}
else {
BLI_assert_msg(0, "Incompatible number of channels for float buffer in sequencer");
*r_format = GPU_RGBA32F;
display_buffer = nullptr;
}
if (ibuf->float_buffer.colorspace) {
*r_glsl_used = IMB_colormanagement_setup_glsl_draw_from_space_ctx(
C, ibuf->float_buffer.colorspace, ibuf->dither, true);
}
else {
*r_glsl_used = IMB_colormanagement_setup_glsl_draw_ctx(C, ibuf->dither, true);
}
}
else if (ibuf->byte_buffer.data) {
display_buffer = ibuf->byte_buffer.data;
*r_glsl_used = IMB_colormanagement_setup_glsl_draw_from_space_ctx(
C, ibuf->byte_buffer.colorspace, ibuf->dither, false);
}
else {
display_buffer = nullptr;
}
/* If we need to fallback to CPU based display transform, do that here. */
if ((ibuf->byte_buffer.data || ibuf->float_buffer.data) && !*r_glsl_used) {
display_buffer = IMB_display_buffer_acquire_ctx(C, ibuf, r_buffer_cache_handle);
*r_format = GPU_RGBA8;
*r_data = GPU_DATA_UBYTE;
}
return display_buffer;
}
static void sequencer_stop_running_jobs(const bContext *C, Scene *scene)
{
if (G.is_rendering == false && (scene->r.seq_prev_type) == OB_RENDER) {
/* Stop all running jobs, except screen one. Currently previews frustrate Render.
* Need to make so sequencers rendering doesn't conflict with compositor. */
WM_jobs_kill_type(CTX_wm_manager(C), nullptr, WM_JOB_TYPE_COMPOSITE);
/* In case of final rendering used for preview, kill all previews,
* otherwise threading conflict will happen in rendering module. */
WM_jobs_kill_type(CTX_wm_manager(C), nullptr, WM_JOB_TYPE_RENDER_PREVIEW);
}
}
static void sequencer_preview_clear()
{
UI_ThemeClearColor(TH_SEQ_PREVIEW);
}
static void sequencer_preview_get_rect(rctf *preview,
Scene *scene,
ARegion *region,
SpaceSeq *sseq,
bool draw_overlay,
bool draw_backdrop)
{
View2D *v2d = &region->v2d;
float viewrect[2];
sequencer_display_size(scene, viewrect);
BLI_rctf_init(preview, -1.0f, 1.0f, -1.0f, 1.0f);
if (draw_overlay && (sseq->overlay_frame_type == SEQ_OVERLAY_FRAME_TYPE_RECT)) {
preview->xmax = v2d->tot.xmin +
(fabsf(BLI_rctf_size_x(&v2d->tot)) * scene->ed->overlay_frame_rect.xmax);
preview->xmin = v2d->tot.xmin +
(fabsf(BLI_rctf_size_x(&v2d->tot)) * scene->ed->overlay_frame_rect.xmin);
preview->ymax = v2d->tot.ymin +
(fabsf(BLI_rctf_size_y(&v2d->tot)) * scene->ed->overlay_frame_rect.ymax);
preview->ymin = v2d->tot.ymin +
(fabsf(BLI_rctf_size_y(&v2d->tot)) * scene->ed->overlay_frame_rect.ymin);
}
else if (draw_backdrop) {
float aspect = BLI_rcti_size_x(&region->winrct) / float(BLI_rcti_size_y(&region->winrct));
float image_aspect = viewrect[0] / viewrect[1];
if (aspect >= image_aspect) {
preview->xmax = image_aspect / aspect;
preview->xmin = -preview->xmax;
}
else {
preview->ymax = aspect / image_aspect;
preview->ymin = -preview->ymax;
}
}
else {
*preview = v2d->tot;
}
}
static void sequencer_draw_display_buffer(const bContext *C,
Scene *scene,
ARegion *region,
SpaceSeq *sseq,
ImBuf *ibuf,
bool draw_overlay,
bool draw_backdrop)
{
void *buffer_cache_handle = nullptr;
if (sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->flag & SEQ_USE_ALPHA) {
GPU_blend(GPU_BLEND_ALPHA);
}
/* Format needs to be created prior to any #immBindShader call.
* Do it here because OCIO binds its own shader. */
eGPUTextureFormat format;
eGPUDataFormat data;
bool glsl_used = false;
GPUVertFormat *imm_format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(imm_format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint texCoord = GPU_vertformat_attr_add(
imm_format, "texCoord", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
void *display_buffer = sequencer_OCIO_transform_ibuf(
C, ibuf, &glsl_used, &format, &data, &buffer_cache_handle);
if (draw_backdrop) {
GPU_matrix_push();
GPU_matrix_identity_set();
GPU_matrix_push_projection();
GPU_matrix_identity_projection_set();
}
eGPUTextureUsage usage = GPU_TEXTURE_USAGE_SHADER_READ | GPU_TEXTURE_USAGE_ATTACHMENT;
GPUTexture *texture = GPU_texture_create_2d(
"seq_display_buf", ibuf->x, ibuf->y, 1, format, usage, nullptr);
GPU_texture_update(texture, data, display_buffer);
GPU_texture_filter_mode(texture, false);
GPU_texture_bind(texture, 0);
if (!glsl_used) {
immBindBuiltinProgram(GPU_SHADER_3D_IMAGE_COLOR);
immUniformColor3f(1.0f, 1.0f, 1.0f);
}
immBegin(GPU_PRIM_TRI_FAN, 4);
rctf preview;
rctf canvas;
sequencer_preview_get_rect(&preview, scene, region, sseq, draw_overlay, draw_backdrop);
if (draw_overlay && (sseq->overlay_frame_type == SEQ_OVERLAY_FRAME_TYPE_RECT)) {
canvas = scene->ed->overlay_frame_rect;
}
else {
BLI_rctf_init(&canvas, 0.0f, 1.0f, 0.0f, 1.0f);
}
immAttr2f(texCoord, canvas.xmin, canvas.ymin);
immVertex2f(pos, preview.xmin, preview.ymin);
immAttr2f(texCoord, canvas.xmin, canvas.ymax);
immVertex2f(pos, preview.xmin, preview.ymax);
immAttr2f(texCoord, canvas.xmax, canvas.ymax);
immVertex2f(pos, preview.xmax, preview.ymax);
immAttr2f(texCoord, canvas.xmax, canvas.ymin);
immVertex2f(pos, preview.xmax, preview.ymin);
immEnd();
GPU_texture_unbind(texture);
GPU_texture_free(texture);
if (!glsl_used) {
immUnbindProgram();
}
else {
IMB_colormanagement_finish_glsl_draw();
}
if (buffer_cache_handle) {
IMB_display_buffer_release(buffer_cache_handle);
}
if (sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->flag & SEQ_USE_ALPHA) {
GPU_blend(GPU_BLEND_NONE);
}
if (draw_backdrop) {
GPU_matrix_pop();
GPU_matrix_pop_projection();
}
}
static void draw_histogram(ARegion *region,
const blender::ed::seq::ScopeHistogram &hist,
SeqQuadsBatch &quads,
const rctf &area)
{
using namespace blender::ed::seq;
if (hist.data.is_empty()) {
return;
}
/* Grid lines and labels. */
uchar col_grid[4] = {128, 128, 128, 128};
float grid_x_0 = area.xmin;
float grid_x_1 = area.xmax;
/* Float histograms show more than 0..1 range horizontally. */
if (hist.is_float_hist()) {
float ratio_0 = ratiof(ScopeHistogram::FLOAT_VAL_MIN, ScopeHistogram::FLOAT_VAL_MAX, 0.0f);
float ratio_1 = ratiof(ScopeHistogram::FLOAT_VAL_MIN, ScopeHistogram::FLOAT_VAL_MAX, 1.0f);
grid_x_0 = area.xmin + (area.xmax - area.xmin) * ratio_0;
grid_x_1 = area.xmin + (area.xmax - area.xmin) * ratio_1;
}
View2D *v2d = &region->v2d;
float text_scale_x, text_scale_y;
UI_view2d_scale_get_inverse(v2d, &text_scale_x, &text_scale_y);
for (int line = 0; line <= 4; line++) {
float val = float(line) / 4;
float x = grid_x_0 + (grid_x_1 - grid_x_0) * val;
quads.add_line(x, area.ymin, x, area.ymax, col_grid);
/* Label. */
char buf[10];
const size_t buf_len = SNPRINTF_RLEN(buf, "%.2f", val);
float text_width, text_height;
BLF_width_and_height(BLF_default(), buf, buf_len, &text_width, &text_height);
text_width *= text_scale_x;
text_height *= text_scale_y;
UI_view2d_text_cache_add(
v2d, x - text_width / 2, area.ymax - text_height * 1.3f, buf, buf_len, col_grid);
}
/* Border. */
uchar col_border[4] = {64, 64, 64, 128};
quads.add_wire_quad(area.xmin, area.ymin, area.xmax, area.ymax, col_border);
/* Histogram area & line for each R/G/B channels, additively blended. */
quads.draw();
GPU_blend(GPU_BLEND_ADDITIVE);
for (int ch = 0; ch < 3; ++ch) {
if (hist.max_value[ch] == 0) {
continue;
}
uchar col_line[4] = {32, 32, 32, 255};
uchar col_area[4] = {64, 64, 64, 128};
col_line[ch] = 224;
col_area[ch] = 224;
float y_scale = (area.ymax - area.ymin) / hist.max_value[ch] * 0.95f;
float x_scale = (area.xmax - area.xmin) / hist.data.size();
float yb = area.ymin;
for (int bin = 0; bin < hist.data.size() - 1; bin++) {
float x0 = area.xmin + (bin + 0.5f) * x_scale;
float x1 = area.xmin + (bin + 1.5f) * x_scale;
float y0 = area.ymin + hist.data[bin][ch] * y_scale;
float y1 = area.ymin + hist.data[bin + 1][ch] * y_scale;
quads.add_quad(x0, yb, x0, y0, x1, yb, x1, y1, col_area);
quads.add_line(x0, y0, x1, y1, col_line);
}
}
quads.draw();
GPU_blend(GPU_BLEND_ALPHA);
UI_view2d_text_cache_draw(region);
}
static blender::float2 rgb_to_uv_scaled(const blender::float3 &rgb)
{
using namespace blender::ed::seq;
float y, u, v;
rgb_to_yuv(rgb.x, rgb.y, rgb.z, &y, &u, &v, BLI_YUV_ITU_BT709);
/* Scale to +-0.5 range. */
u *= SeqScopes::VECSCOPE_U_SCALE;
v *= SeqScopes::VECSCOPE_V_SCALE;
return blender::float2(u, v);
}
static void draw_waveform_graticule(ARegion *region, SeqQuadsBatch &quads, const rctf &area)
{
/* Horizontal lines at 10%, 70%, 90%. */
const float lines[3] = {0.1f, 0.7f, 0.9f};
uchar col_grid[4] = {160, 64, 64, 128};
const float x0 = area.xmin;
const float x1 = area.xmax;
for (int i = 0; i < 3; i++) {
const float y = area.ymin + (area.ymax - area.ymin) * lines[i];
char buf[10];
SNPRINTF(buf, "%.1f", lines[i]);
quads.add_line(x0, y, x1, y, col_grid);
UI_view2d_text_cache_add(&region->v2d, x0 + 8, y + 8, buf, strlen(buf), col_grid);
}
/* Border. */
uchar col_border[4] = {64, 64, 64, 128};
quads.add_wire_quad(x0, area.ymin, x1, area.ymax, col_border);
quads.draw();
UI_view2d_text_cache_draw(region);
}
static void draw_vectorscope_graticule(ARegion *region, SeqQuadsBatch &quads, const rctf &area)
{
using namespace blender;
using namespace blender::ed::seq;
const float skin_rad = DEG2RADF(123.0f); /* angle in radians of the skin tone line */
const float w = BLI_rctf_size_x(&area);
const float h = BLI_rctf_size_y(&area);
const float2 center{BLI_rctf_cent_x(&area), BLI_rctf_cent_y(&area)};
const float radius = ((w < h) ? w : h) * 0.5f;
/* Precalculate circle points/colors. */
constexpr int circle_delta = 6;
constexpr int num_circle_points = 360 / circle_delta;
float2 circle_pos[num_circle_points];
float3 circle_col[num_circle_points];
for (int i = 0; i < num_circle_points; i++) {
float a = DEG2RADF(i * circle_delta);
float x = cosf(a);
float y = sinf(a);
circle_pos[i] = float2(x, y);
float u = x / SeqScopes::VECSCOPE_U_SCALE;
float v = y / SeqScopes::VECSCOPE_V_SCALE;
float3 col;
yuv_to_rgb(0.5f, u, v, &col.x, &col.y, &col.z, BLI_YUV_ITU_BT709);
circle_col[i] = col;
}
/* Draw colored background and outer ring, additively blended
* since vectorscope image is already drawn. */
GPU_blend(GPU_BLEND_ADDITIVE);
constexpr float alpha_f = 0.8f;
constexpr uchar alpha_b = uchar(alpha_f * 255.0f);
const uchar4 col_center(50, 50, 50, alpha_b);
uchar4 col1(0, 0, 0, alpha_b);
uchar4 col2(0, 0, 0, alpha_b);
uchar4 col3(0, 0, 0, alpha_b);
/* Background: since the quads batch utility draws quads, draw two
* segments of the circle (two triangles) in one iteration. */
constexpr float mul_background = 0.2f;
for (int i = 0; i < num_circle_points; i += 2) {
int idx1 = i;
int idx2 = (i + 1) % num_circle_points;
int idx3 = (i + 2) % num_circle_points;
float2 pt1 = center + circle_pos[idx1] * radius;
float2 pt2 = center + circle_pos[idx2] * radius;
float2 pt3 = center + circle_pos[idx3] * radius;
float3 rgb1 = circle_col[idx1] * mul_background;
float3 rgb2 = circle_col[idx2] * mul_background;
float3 rgb3 = circle_col[idx3] * mul_background;
rgb_float_to_uchar(col1, rgb1);
rgb_float_to_uchar(col2, rgb2);
rgb_float_to_uchar(col3, rgb3);
quads.add_quad(pt1.x,
pt1.y,
pt2.x,
pt2.y,
center.x,
center.y,
pt3.x,
pt3.y,
col1,
col2,
col_center,
col3);
}
/* Outer ring. */
const float outer_radius = radius * 1.02f;
for (int i = 0; i < num_circle_points; i++) {
int idx1 = i;
int idx2 = (i + 1) % num_circle_points;
float2 pt1a = center + circle_pos[idx1] * radius;
float2 pt2a = center + circle_pos[idx2] * radius;
float2 pt1b = center + circle_pos[idx1] * outer_radius;
float2 pt2b = center + circle_pos[idx2] * outer_radius;
float3 rgb1 = circle_col[idx1];
float3 rgb2 = circle_col[idx2];
rgb_float_to_uchar(col1, rgb1);
rgb_float_to_uchar(col2, rgb2);
quads.add_quad(
pt1a.x, pt1a.y, pt1b.x, pt1b.y, pt2a.x, pt2a.y, pt2b.x, pt2b.y, col1, col1, col2, col2);
}
quads.draw();
/* Draw grid and other labels using regular alpha blending. */
GPU_blend(GPU_BLEND_ALPHA);
const uchar4 col_grid(128, 128, 128, 128);
/* Cross. */
quads.add_line(center.x - radius, center.y, center.x + radius, center.y, col_grid);
quads.add_line(center.x, center.y - radius, center.x, center.y + radius, col_grid);
/* Inner circles. */
for (int j = 1; j < 5; j++) {
float r = radius * j * 0.2f;
for (int i = 0; i < num_circle_points; i++) {
int idx1 = i;
int idx2 = (i + 1) % num_circle_points;
float2 pt1 = center + circle_pos[idx1] * r;
float2 pt2 = center + circle_pos[idx2] * r;
quads.add_line(pt1.x, pt1.y, pt2.x, pt2.y, col_grid);
}
}
/* "Safe" (0.75 saturation) primary color locations and labels. */
const float3 primaries[6] = {
{1, 0, 0},
{1, 1, 0},
{0, 1, 0},
{0, 1, 1},
{0, 0, 1},
{1, 0, 1},
};
const char *names = "RYGCBM";
/* Calculate size of single text letter. */
char buf[2] = {'M', 0};
float text_scale_x, text_scale_y;
UI_view2d_scale_get_inverse(&region->v2d, &text_scale_x, &text_scale_y);
float text_width, text_height;
BLF_width_and_height(BLF_default(), buf, 1, &text_width, &text_height);
text_width *= text_scale_x;
text_height *= text_scale_y;
const uchar4 col_target(128, 128, 128, 192);
const float delta = radius * 0.01f;
for (int i = 0; i < 6; i++) {
float3 safe = primaries[i] * 0.75f;
float2 pos = center + rgb_to_uv_scaled(safe) * (radius * 2);
quads.add_wire_quad(pos.x - delta, pos.y - delta, pos.x + delta, pos.y + delta, col_target);
buf[0] = names[i];
UI_view2d_text_cache_add(&region->v2d,
pos.x + delta * 1.2f + text_width / 4,
pos.y - text_height / 2,
buf,
1,
col_target);
}
/* Skin tone line. */
const uchar4 col_tone(255, 102, 0, 128);
quads.add_line(center.x,
center.y,
center.x + cosf(skin_rad) * radius,
center.y + sinf(skin_rad) * radius,
col_tone);
quads.draw();
UI_view2d_text_cache_draw(region);
}
static void sequencer_draw_scopes(Scene *scene, ARegion *region, SpaceSeq *sseq)
{
using namespace blender::ed::seq;
/* Figure out draw coordinates. */
rctf preview;
sequencer_preview_get_rect(&preview, scene, region, sseq, false, false);
rctf uv;
BLI_rctf_init(&uv, 0.0f, 1.0f, 0.0f, 1.0f);
const bool keep_aspect = sseq->mainb == SEQ_DRAW_IMG_VECTORSCOPE;
float vecscope_aspect = 1.0f;
if (keep_aspect) {
float width = std::max(BLI_rctf_size_x(&preview), 0.1f);
float height = std::max(BLI_rctf_size_y(&preview), 0.1f);
vecscope_aspect = width / height;
if (vecscope_aspect >= 1.0f) {
BLI_rctf_resize_x(&uv, vecscope_aspect);
}
else {
BLI_rctf_resize_y(&uv, 1.0f / vecscope_aspect);
}
}
SeqQuadsBatch quads;
SeqScopes *scopes = &sseq->runtime->scopes;
bool use_blend = sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->flag & SEQ_USE_ALPHA;
/* Draw black rectangle over scopes area. */
if (sseq->mainb != SEQ_DRAW_IMG_IMBUF) {
GPU_blend(GPU_BLEND_NONE);
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uchar black[4] = {0, 0, 0, 255};
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
immUniformColor4ubv(black);
immRectf(pos, preview.xmin, preview.ymin, preview.xmax, preview.ymax);
immUnbindProgram();
}
/* Draw scope image if there is one. */
ImBuf *scope_image = nullptr;
if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
scope_image = scopes->zebra_ibuf;
}
else if (sseq->mainb == SEQ_DRAW_IMG_WAVEFORM) {
scope_image = scopes->waveform_ibuf;
}
else if (sseq->mainb == SEQ_DRAW_IMG_VECTORSCOPE) {
scope_image = scopes->vector_ibuf;
}
else if (sseq->mainb == SEQ_DRAW_IMG_RGBPARADE) {
scope_image = scopes->sep_waveform_ibuf;
}
if (use_blend) {
GPU_blend(GPU_BLEND_ALPHA);
}
if (scope_image != nullptr) {
if (scope_image->float_buffer.data && scope_image->byte_buffer.data == nullptr) {
IMB_byte_from_float(scope_image);
}
eGPUTextureFormat format = GPU_RGBA8;
eGPUDataFormat data = GPU_DATA_UBYTE;
eGPUTextureUsage usage = GPU_TEXTURE_USAGE_SHADER_READ | GPU_TEXTURE_USAGE_ATTACHMENT;
GPUTexture *texture = GPU_texture_create_2d(
"seq_display_buf", scope_image->x, scope_image->y, 1, format, usage, nullptr);
GPU_texture_update(texture, data, scope_image->byte_buffer.data);
GPU_texture_filter_mode(texture, false);
GPU_texture_extend_mode(texture, GPU_SAMPLER_EXTEND_MODE_CLAMP_TO_BORDER);
GPU_texture_bind(texture, 0);
GPUVertFormat *imm_format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(imm_format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint texCoord = GPU_vertformat_attr_add(
imm_format, "texCoord", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_IMAGE_COLOR);
immUniformColor3f(1.0f, 1.0f, 1.0f);
immBegin(GPU_PRIM_TRI_FAN, 4);
immAttr2f(texCoord, uv.xmin, uv.ymin);
immVertex2f(pos, preview.xmin, preview.ymin);
immAttr2f(texCoord, uv.xmin, uv.ymax);
immVertex2f(pos, preview.xmin, preview.ymax);
immAttr2f(texCoord, uv.xmax, uv.ymax);
immVertex2f(pos, preview.xmax, preview.ymax);
immAttr2f(texCoord, uv.xmax, uv.ymin);
immVertex2f(pos, preview.xmax, preview.ymin);
immEnd();
GPU_texture_unbind(texture);
GPU_texture_free(texture);
immUnbindProgram();
}
if (sseq->mainb == SEQ_DRAW_IMG_HISTOGRAM) {
draw_histogram(region, scopes->histogram, quads, preview);
}
if (ELEM(sseq->mainb, SEQ_DRAW_IMG_WAVEFORM, SEQ_DRAW_IMG_RGBPARADE)) {
use_blend = true;
draw_waveform_graticule(region, quads, preview);
}
if (sseq->mainb == SEQ_DRAW_IMG_VECTORSCOPE) {
use_blend = true;
draw_vectorscope_graticule(region, quads, preview);
}
quads.draw();
if (use_blend) {
GPU_blend(GPU_BLEND_NONE);
}
}
static bool sequencer_calc_scopes(Scene *scene, SpaceSeq *sseq, ImBuf *ibuf, bool draw_backdrop)
{
using namespace blender::ed::seq;
if (draw_backdrop || (sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->zebra == 0)) {
return false; /* Not drawing any scopes. */
}
SeqScopes *scopes = &sseq->runtime->scopes;
if (scopes->reference_ibuf != ibuf) {
scopes->cleanup();
}
switch (sseq->mainb) {
case SEQ_DRAW_IMG_IMBUF:
if (!scopes->zebra_ibuf) {
if (ibuf->float_buffer.data) {
ImBuf *display_ibuf = IMB_dupImBuf(ibuf);
IMB_colormanagement_imbuf_make_display_space(
display_ibuf, &scene->view_settings, &scene->display_settings);
scopes->zebra_ibuf = make_zebra_view_from_ibuf(display_ibuf, sseq->zebra);
IMB_freeImBuf(display_ibuf);
}
else {
scopes->zebra_ibuf = make_zebra_view_from_ibuf(ibuf, sseq->zebra);
}
}
break;
case SEQ_DRAW_IMG_WAVEFORM:
if (!scopes->waveform_ibuf) {
scopes->waveform_ibuf = sequencer_make_scope(scene, ibuf, make_waveform_view_from_ibuf);
}
break;
case SEQ_DRAW_IMG_VECTORSCOPE:
if (!scopes->vector_ibuf) {
scopes->vector_ibuf = sequencer_make_scope(scene, ibuf, make_vectorscope_view_from_ibuf);
}
break;
case SEQ_DRAW_IMG_HISTOGRAM: {
ImBuf *display_ibuf = IMB_dupImBuf(ibuf);
IMB_colormanagement_imbuf_make_display_space(
display_ibuf, &scene->view_settings, &scene->display_settings);
scopes->histogram.calc_from_ibuf(display_ibuf);
IMB_freeImBuf(display_ibuf);
} break;
case SEQ_DRAW_IMG_RGBPARADE:
if (!scopes->sep_waveform_ibuf) {
scopes->sep_waveform_ibuf = sequencer_make_scope(
scene, ibuf, make_sep_waveform_view_from_ibuf);
}
break;
default: /* Future files might have scopes we don't know about. */
return false;
}
scopes->reference_ibuf = ibuf;
return true;
}
bool sequencer_draw_get_transform_preview(SpaceSeq *sseq, Scene *scene)
{
Strip *last_seq = SEQ_select_active_get(scene);
if (last_seq == nullptr) {
return false;
}
return (G.moving & G_TRANSFORM_SEQ) && (last_seq->flag & SELECT) &&
((last_seq->flag & SEQ_LEFTSEL) || (last_seq->flag & SEQ_RIGHTSEL)) &&
(sseq->draw_flag & SEQ_DRAW_TRANSFORM_PREVIEW);
}
int sequencer_draw_get_transform_preview_frame(Scene *scene)
{
Strip *last_seq = SEQ_select_active_get(scene);
/* #sequencer_draw_get_transform_preview must already have been called. */
BLI_assert(last_seq != nullptr);
int preview_frame;
if (last_seq->flag & SEQ_RIGHTSEL) {
preview_frame = SEQ_time_right_handle_frame_get(scene, last_seq) - 1;
}
else {
preview_frame = SEQ_time_left_handle_frame_get(scene, last_seq);
}
return preview_frame;
}
static void strip_draw_image_origin_and_outline(const bContext *C,
Strip *strip,
bool is_active_seq)
{
SpaceSeq *sseq = CTX_wm_space_seq(C);
const ARegion *region = CTX_wm_region(C);
if (region->regiontype == RGN_TYPE_PREVIEW && !sequencer_view_preview_only_poll(C)) {
return;
}
if ((strip->flag & SELECT) == 0) {
return;
}
if (ED_screen_animation_no_scrub(CTX_wm_manager(C))) {
return;
}
if ((sseq->flag & SEQ_SHOW_OVERLAY) == 0 ||
(sseq->preview_overlay.flag & SEQ_PREVIEW_SHOW_OUTLINE_SELECTED) == 0)
{
return;
}
if (ELEM(sseq->mainb,
SEQ_DRAW_IMG_WAVEFORM,
SEQ_DRAW_IMG_RGBPARADE,
SEQ_DRAW_IMG_VECTORSCOPE,
SEQ_DRAW_IMG_HISTOGRAM))
{
return;
}
const blender::float2 origin = SEQ_image_transform_origin_offset_pixelspace_get(
CTX_data_scene(C), strip);
/* Origin. */
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_OUTLINE_AA);
immUniform1f("outlineWidth", 1.5f);
immUniformColor3f(1.0f, 1.0f, 1.0f);
immUniform4f("outlineColor", 0.0f, 0.0f, 0.0f, 1.0f);
immUniform1f("size", 15.0f * U.pixelsize);
immBegin(GPU_PRIM_POINTS, 1);
immVertex2f(pos, origin[0], origin[1]);
immEnd();
immUnbindProgram();
/* Outline. */
const blender::Array<blender::float2> strip_image_quad = SEQ_image_transform_final_quad_get(
CTX_data_scene(C), strip);
GPU_line_smooth(true);
GPU_blend(GPU_BLEND_ALPHA);
GPU_line_width(2);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
float col[3];
if (is_active_seq) {
UI_GetThemeColor3fv(TH_SEQ_ACTIVE, col);
}
else {
UI_GetThemeColor3fv(TH_SEQ_SELECTED, col);
}
immUniformColor3fv(col);
immUniform1f("lineWidth", U.pixelsize);
immBegin(GPU_PRIM_LINE_LOOP, 4);
immVertex2f(pos, strip_image_quad[0].x, strip_image_quad[0].y);
immVertex2f(pos, strip_image_quad[1].x, strip_image_quad[1].y);
immVertex2f(pos, strip_image_quad[2].x, strip_image_quad[2].y);
immVertex2f(pos, strip_image_quad[3].x, strip_image_quad[3].y);
immEnd();
immUnbindProgram();
GPU_line_width(1);
GPU_blend(GPU_BLEND_NONE);
GPU_line_smooth(false);
}
static void text_selection_draw(const bContext *C, const Strip *strip, uint pos)
{
const TextVars *data = static_cast<TextVars *>(strip->effectdata);
const TextVarsRuntime *text = data->runtime;
const Scene *scene = CTX_data_scene(C);
if (data->selection_start_offset == -1 || strip_text_selection_range_get(data).is_empty()) {
return;
}
const blender::IndexRange sel_range = strip_text_selection_range_get(data);
const blender::int2 selection_start = strip_text_cursor_offset_to_position(text,
sel_range.first());
const blender::int2 selection_end = strip_text_cursor_offset_to_position(text, sel_range.last());
const int line_start = selection_start.y;
const int line_end = selection_end.y;
for (int line_index = line_start; line_index <= line_end; line_index++) {
const blender::seq::LineInfo line = text->lines[line_index];
blender::seq::CharInfo character_start = line.characters.first();
blender::seq::CharInfo character_end = line.characters.last();
if (line_index == selection_start.y) {
character_start = line.characters[selection_start.x];
}
if (line_index == selection_end.y) {
character_end = line.characters[selection_end.x];
}
const float line_y = character_start.position.y + text->font_descender;
const blender::float2 view_offs{-scene->r.xsch / 2.0f, -scene->r.ysch / 2.0f};
const float view_aspect = scene->r.xasp / scene->r.yasp;
blender::float3x3 transform_mat = SEQ_image_transform_matrix_get(scene, strip);
blender::float4x2 selection_quad{
{character_start.position.x, line_y},
{character_start.position.x, line_y + text->line_height},
{character_end.position.x + character_end.advance_x, line_y + text->line_height},
{character_end.position.x + character_end.advance_x, line_y},
};
immBegin(GPU_PRIM_TRIS, 6);
immUniformThemeColor(TH_SEQ_SELECTED_TEXT);
for (int i : blender::IndexRange(0, 4)) {
selection_quad[i] += view_offs;
selection_quad[i] = blender::math::transform_point(transform_mat, selection_quad[i]);
selection_quad[i].x *= view_aspect;
}
for (int i : blender::Vector<int>{0, 1, 2, 2, 3, 0}) {
immVertex2f(pos, selection_quad[i][0], selection_quad[i][1]);
}
immEnd();
}
}
static blender::float2 coords_region_view_align(const View2D *v2d, const blender::float2 coords)
{
blender::int2 coords_view;
UI_view2d_view_to_region(v2d, coords.x, coords.y, &coords_view.x, &coords_view.y);
coords_view.x = std::round(coords_view.x);
coords_view.y = std::round(coords_view.y);
blender::float2 coords_region_aligned;
UI_view2d_region_to_view(
v2d, coords_view.x, coords_view.y, &coords_region_aligned.x, &coords_region_aligned.y);
return coords_region_aligned;
}
static void text_edit_draw_cursor(const bContext *C, const Strip *strip, uint pos)
{
const TextVars *data = static_cast<TextVars *>(strip->effectdata);
const TextVarsRuntime *text = data->runtime;
const Scene *scene = CTX_data_scene(C);
const blender::float2 view_offs{-scene->r.xsch / 2.0f, -scene->r.ysch / 2.0f};
const float view_aspect = scene->r.xasp / scene->r.yasp;
blender::float3x3 transform_mat = SEQ_image_transform_matrix_get(scene, strip);
const blender::int2 cursor_position = strip_text_cursor_offset_to_position(text,
data->cursor_offset);
const float cursor_width = 10;
blender::float2 cursor_coords =
text->lines[cursor_position.y].characters[cursor_position.x].position;
/* Clamp cursor coords to be inside of text boundbox. Compensate for cursor width, but also line
* width hardcoded in shader. */
rcti text_boundbox = text->text_boundbox;
text_boundbox.xmax -= cursor_width + U.pixelsize;
text_boundbox.xmin += U.pixelsize;
cursor_coords.x = std::clamp(
cursor_coords.x, float(text_boundbox.xmin), float(text_boundbox.xmax));
cursor_coords = coords_region_view_align(UI_view2d_fromcontext(C), cursor_coords);
blender::float4x2 cursor_quad{
{cursor_coords.x, cursor_coords.y},
{cursor_coords.x, cursor_coords.y + text->line_height},
{cursor_coords.x + cursor_width, cursor_coords.y + text->line_height},
{cursor_coords.x + cursor_width, cursor_coords.y},
};
const blender::float2 descender_offs{0.0f, float(text->font_descender)};
immBegin(GPU_PRIM_TRIS, 6);
immUniformThemeColor(TH_SEQ_TEXT_CURSOR);
for (int i : blender::IndexRange(0, 4)) {
cursor_quad[i] += descender_offs + view_offs;
cursor_quad[i] = blender::math::transform_point(transform_mat, cursor_quad[i]);
cursor_quad[i].x *= view_aspect;
}
for (int i : blender::Vector<int>{0, 1, 2, 2, 3, 0}) {
immVertex2f(pos, cursor_quad[i][0], cursor_quad[i][1]);
}
immEnd();
}
static void text_edit_draw_box(const bContext *C, const Strip *strip, uint pos)
{
const TextVars *data = static_cast<TextVars *>(strip->effectdata);
const TextVarsRuntime *text = data->runtime;
const Scene *scene = CTX_data_scene(C);
const blender::float2 view_offs{-scene->r.xsch / 2.0f, -scene->r.ysch / 2.0f};
const float view_aspect = scene->r.xasp / scene->r.yasp;
blender::float3x3 transform_mat = SEQ_image_transform_matrix_get(CTX_data_scene(C), strip);
blender::float4x2 box_quad{
{float(text->text_boundbox.xmin), float(text->text_boundbox.ymin)},
{float(text->text_boundbox.xmin), float(text->text_boundbox.ymax)},
{float(text->text_boundbox.xmax), float(text->text_boundbox.ymax)},
{float(text->text_boundbox.xmax), float(text->text_boundbox.ymin)},
};
GPU_blend(GPU_BLEND_NONE);
immBindBuiltinProgram(GPU_SHADER_3D_LINE_DASHED_UNIFORM_COLOR);
blender::float3 col;
UI_GetThemeColorShade3fv(TH_SEQ_ACTIVE, -50, col);
immUniformColor3fv(col);
immUniform1f("lineWidth", U.pixelsize);
immUniform1f("dash_width", 10.0f);
immBegin(GPU_PRIM_LINE_LOOP, 4);
for (int i : blender::IndexRange(0, 4)) {
box_quad[i] += view_offs;
box_quad[i] = blender::math::transform_point(transform_mat, box_quad[i]);
box_quad[i].x *= view_aspect;
immVertex2f(pos, box_quad[i][0], box_quad[i][1]);
}
immEnd();
immUnbindProgram();
}
static void text_edit_draw(const bContext *C)
{
if (!sequencer_text_editing_active_poll(const_cast<bContext *>(C))) {
return;
}
const Strip *strip = SEQ_select_active_get(CTX_data_scene(C));
if (!SEQ_effects_can_render_text(strip)) {
return;
}
GPUVertFormat *format = immVertexFormat();
const uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
GPU_line_smooth(true);
GPU_blend(GPU_BLEND_ALPHA);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
text_selection_draw(C, strip, pos);
text_edit_draw_cursor(C, strip, pos);
immUnbindProgram();
GPU_blend(GPU_BLEND_NONE);
GPU_line_smooth(false);
text_edit_draw_box(C, strip, pos);
}
void sequencer_draw_preview(const bContext *C,
Scene *scene,
ARegion *region,
SpaceSeq *sseq,
int timeline_frame,
int offset,
bool draw_overlay,
bool draw_backdrop)
{
View2D *v2d = &region->v2d;
ImBuf *ibuf = nullptr;
float viewrect[2];
const bool show_imbuf = ED_space_sequencer_check_show_imbuf(sseq);
const bool draw_gpencil = ((sseq->preview_overlay.flag & SEQ_PREVIEW_SHOW_GPENCIL) && sseq->gpd);
const char *names[2] = {STEREO_LEFT_NAME, STEREO_RIGHT_NAME};
sequencer_stop_running_jobs(C, scene);
if (G.is_rendering) {
return;
}
int preview_frame = timeline_frame;
if (sequencer_draw_get_transform_preview(sseq, scene)) {
preview_frame = sequencer_draw_get_transform_preview_frame(scene);
}
/* Get image. */
ibuf = sequencer_ibuf_get(C, preview_frame, offset, names[sseq->multiview_eye]);
/* Setup off-screen buffers. */
GPUViewport *viewport = WM_draw_region_get_viewport(region);
GPUFrameBuffer *framebuffer_overlay = GPU_viewport_framebuffer_overlay_get(viewport);
GPU_framebuffer_bind_no_srgb(framebuffer_overlay);
GPU_depth_test(GPU_DEPTH_NONE);
if (sseq->render_size == SEQ_RENDER_SIZE_NONE) {
sequencer_preview_clear();
return;
}
/* Setup view. */
sequencer_display_size(scene, viewrect);
UI_view2d_totRect_set(v2d, roundf(viewrect[0]), roundf(viewrect[1]));
UI_view2d_curRect_validate(v2d);
UI_view2d_view_ortho(v2d);
/* Draw background. */
if (!draw_backdrop &&
(!draw_overlay || (sseq->overlay_frame_type == SEQ_OVERLAY_FRAME_TYPE_REFERENCE)))
{
sequencer_preview_clear();
if (sseq->flag & SEQ_USE_ALPHA) {
imm_draw_box_checker_2d(v2d->tot.xmin, v2d->tot.ymin, v2d->tot.xmax, v2d->tot.ymax);
}
}
if (ibuf) {
bool has_scope = sequencer_calc_scopes(scene, sseq, ibuf, draw_backdrop);
if (has_scope) {
/* Draw scope. */
sequencer_draw_scopes(scene, region, sseq);
}
else {
/* Draw image. */
sequencer_draw_display_buffer(C, scene, region, sseq, ibuf, draw_overlay, draw_backdrop);
}
/* Draw metadata. */
if (sseq->preview_overlay.flag & SEQ_PREVIEW_SHOW_METADATA && sseq->flag & SEQ_SHOW_OVERLAY) {
ED_region_image_metadata_draw(0.0, 0.0, ibuf, &v2d->tot, 1.0, 1.0);
}
}
if (show_imbuf && (sseq->flag & SEQ_SHOW_OVERLAY)) {
sequencer_draw_borders_overlay(sseq, v2d, scene);
}
if (!draw_backdrop && scene->ed != nullptr) {
Editing *ed = SEQ_editing_get(scene);
ListBase *channels = SEQ_channels_displayed_get(ed);
blender::VectorSet strips = SEQ_query_rendered_strips(
scene, channels, ed->seqbasep, timeline_frame, 0);
Strip *active_seq = SEQ_select_active_get(scene);
for (Strip *strip : strips) {
strip_draw_image_origin_and_outline(C, strip, strip == active_seq);
text_edit_draw(C);
}
}
if (draw_gpencil && show_imbuf && (sseq->flag & SEQ_SHOW_OVERLAY)) {
sequencer_draw_gpencil_overlay(C);
}
#if 0
sequencer_draw_maskedit(C, scene, region, sseq);
#endif
/* Draw registered callbacks. */
GPU_framebuffer_bind(framebuffer_overlay);
ED_region_draw_cb_draw(C, region, REGION_DRAW_POST_VIEW);
GPU_framebuffer_bind_no_srgb(framebuffer_overlay);
if (ibuf) {
IMB_freeImBuf(ibuf);
}
UI_view2d_view_restore(C);
seq_prefetch_wm_notify(C, scene);
}
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