Differential D5190 Diff 16214 source/blender/draw/modes/paint_texture_mode.c

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source/blender/draw/modes/paint_texture_mode.c

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* or is free itself. Use PAINT_TEXTURE_engine_init() to		* or is free itself. Use PAINT_TEXTURE_engine_init() to
* initialize most of them and PAINT_TEXTURE_cache_init()		* initialize most of them and PAINT_TEXTURE_cache_init()
* for PAINT_TEXTURE_PassList */		* for PAINT_TEXTURE_PassList */

typedef struct PAINT_TEXTURE_PassList {		typedef struct PAINT_TEXTURE_PassList {
/* Declare all passes here and init them in		/* Declare all passes here and init them in
* PAINT_TEXTURE_cache_init().		* PAINT_TEXTURE_cache_init().
* Only contains (DRWPass ) /		* Only contains (DRWPass ) /
struct DRWPass *image_faces;		struct DRWPass *stencil_mask_overlay;

struct DRWPass *wire_select_overlay;		struct DRWPass *wire_select_overlay;
struct DRWPass *face_select_overlay;		struct DRWPass *face_select_overlay;
} PAINT_TEXTURE_PassList;		} PAINT_TEXTURE_PassList;

typedef struct PAINT_TEXTURE_FramebufferList {		typedef struct PAINT_TEXTURE_FramebufferList {
/* Contains all framebuffer objects needed by this engine.		/* Contains all framebuffer objects needed by this engine.
* Only contains (GPUFrameBuffer ) /		* Only contains (GPUFrameBuffer ) /
Show All 27 Lines	typedef struct PAINT_TEXTURE_Data {
PAINT_TEXTURE_StorageList *stl;		PAINT_TEXTURE_StorageList *stl;
} PAINT_TEXTURE_Data;		} PAINT_TEXTURE_Data;

typedef struct PAINT_TEXTURE_Shaders {		typedef struct PAINT_TEXTURE_Shaders {
/* Custom shaders :		/* Custom shaders :
* Add sources to source/blender/draw/modes/shaders		* Add sources to source/blender/draw/modes/shaders
* init in PAINT_TEXTURE_engine_init();		* init in PAINT_TEXTURE_engine_init();
* free in PAINT_TEXTURE_engine_free(); */		* free in PAINT_TEXTURE_engine_free(); */
struct GPUShader *fallback;		struct GPUShader *stencil_mask_overlay;
struct GPUShader *image;
struct GPUShader *image_mask;

struct GPUShader *wire_select_overlay;		struct GPUShader *wire_select_overlay;
struct GPUShader *face_select_overlay;		struct GPUShader *face_select_overlay;
} PAINT_TEXTURE_Shaders;		} PAINT_TEXTURE_Shaders;

/* ********* STATIC ********* */		/* ********* STATIC ********* */

static struct {		static struct {
PAINT_TEXTURE_Shaders sh_data[GPU_SHADER_CFG_LEN];		PAINT_TEXTURE_Shaders sh_data[GPU_SHADER_CFG_LEN];
} e_data = {{{NULL}}}; /* Engine data */		} e_data = {{{NULL}}}; /* Engine data */

typedef struct PAINT_TEXTURE_PrivateData {		typedef struct PAINT_TEXTURE_PrivateData {
/* This keeps the references of the shading groups for		/* This keeps the references of the shading groups for
* easy access in PAINT_TEXTURE_cache_populate() */		* easy access in PAINT_TEXTURE_cache_populate() */
DRWShadingGroup *shgroup_fallback;		DRWShadingGroup *shgroup_stencil_mask;
DRWShadingGroup **shgroup_image_array;

/* face-mask */		/* face-mask */
DRWShadingGroup *lwire_select_shgrp;		DRWShadingGroup *lwire_select_shgrp;
DRWShadingGroup *face_select_shgrp;		DRWShadingGroup *face_select_shgrp;

DRWView *view_wires;		DRWView *view_wires;
} PAINT_TEXTURE_PrivateData; /* Transient data */		} PAINT_TEXTURE_PrivateData; /* Transient data */

/* ********* FUNCTIONS ********* */		/* ********* FUNCTIONS ********* */

/* Init Textures, Framebuffers, Storage and Shaders.		/* Init Textures, Framebuffers, Storage and Shaders.
* It is called for every frames. */		* It is called for every frames. */
static void PAINT_TEXTURE_engine_init(void *vedata)		static void PAINT_TEXTURE_engine_init(void *vedata)
{		{
PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;		PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;
const DRWContextState *draw_ctx = DRW_context_state_get();		const DRWContextState *draw_ctx = DRW_context_state_get();
PAINT_TEXTURE_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];		PAINT_TEXTURE_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];

if (!sh_data->fallback) {		if (!sh_data->stencil_mask_overlay) {
const GPUShaderConfigData *sh_cfg_data = &GPU_shader_cfg_data[draw_ctx->sh_cfg];		const GPUShaderConfigData *sh_cfg_data = &GPU_shader_cfg_data[draw_ctx->sh_cfg];
sh_data->fallback = GPU_shader_create_from_arrays({		sh_data->stencil_mask_overlay = GPU_shader_create_from_arrays({
.vert = (const char *[]){sh_cfg_data->lib,
datatoc_common_view_lib_glsl,
datatoc_paint_face_vert_glsl,
NULL},
.frag = (const char *[]){datatoc_gpu_shader_uniform_color_frag_glsl, NULL},
.defs = (const char *[]){sh_cfg_data->def, NULL},
});

sh_data->image = GPU_shader_create_from_arrays({
.vert = (const char *[]){sh_cfg_data->lib,		.vert = (const char *[]){sh_cfg_data->lib,
datatoc_common_globals_lib_glsl,		datatoc_common_globals_lib_glsl,
datatoc_common_view_lib_glsl,		datatoc_common_view_lib_glsl,
datatoc_paint_texture_vert_glsl,		datatoc_paint_texture_vert_glsl,
NULL},		NULL},
.frag = (const char *[]){datatoc_common_colormanagement_lib_glsl,		.frag = (const char *[]){datatoc_common_colormanagement_lib_glsl,
datatoc_paint_texture_frag_glsl,		datatoc_paint_texture_frag_glsl,
NULL},		NULL},
.defs = (const char *[]){sh_cfg_data->def, NULL},		.defs = (const char *[]){sh_cfg_data->def, NULL},
});		});

sh_data->image_mask = GPU_shader_create_from_arrays({
.vert = (const char *[]){sh_cfg_data->lib,
datatoc_common_globals_lib_glsl,
datatoc_common_view_lib_glsl,
datatoc_paint_texture_vert_glsl,
NULL},
.frag = (const char *[]){datatoc_common_colormanagement_lib_glsl,
datatoc_paint_texture_frag_glsl,
NULL},
.defs = (const char *[]){sh_cfg_data->def, "#define TEXTURE_PAINT_MASK\n", NULL},
});

sh_data->wire_select_overlay = GPU_shader_create_from_arrays({		sh_data->wire_select_overlay = GPU_shader_create_from_arrays({
.vert = (const char *[]){sh_cfg_data->lib,		.vert = (const char *[]){sh_cfg_data->lib,
datatoc_common_globals_lib_glsl,		datatoc_common_globals_lib_glsl,
datatoc_common_view_lib_glsl,		datatoc_common_view_lib_glsl,
datatoc_paint_wire_vert_glsl,		datatoc_paint_wire_vert_glsl,
NULL},		NULL},
.frag = (const char *[]){datatoc_paint_wire_frag_glsl, NULL},		.frag = (const char *[]){datatoc_paint_wire_frag_glsl, NULL},
.defs = (const char *[]){sh_cfg_data->def, "#define USE_SELECT\n", NULL},		.defs = (const char *[]){sh_cfg_data->def, "#define USE_SELECT\n", NULL},
Show All 9 Lines	sh_data->face_select_overlay = GPU_shader_create_from_arrays({
NULL},		NULL},
.defs = (const char *[]){sh_cfg_data->def, NULL},		.defs = (const char *[]){sh_cfg_data->def, NULL},
});		});
}		}

if (!stl->g_data) {		if (!stl->g_data) {
/* Alloc transient pointers */		/* Alloc transient pointers */
stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__);		stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__);
stl->g_data->shgroup_image_array = NULL;		stl->g_data->shgroup_stencil_mask = NULL;
}		}

stl->g_data->view_wires = DRW_view_create_with_zoffset(draw_ctx->rv3d, 1.0f);		stl->g_data->view_wires = DRW_view_create_with_zoffset(draw_ctx->rv3d, 1.0f);
}		}

static DRWShadingGroup create_texture_paint_shading_group(PAINT_TEXTURE_PassList psl,		static DRWShadingGroup *create_texture_paint_stencil_mask_shading_group(
const Image *image,		PAINT_TEXTURE_PassList psl, const DRWContextState draw_ctx)
const struct GPUTexture *texture,
const DRWContextState *draw_ctx,
const bool nearest_interp)
{		{
PAINT_TEXTURE_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];		PAINT_TEXTURE_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];
Scene *scene = draw_ctx->scene;		Scene *scene = draw_ctx->scene;
const ImagePaintSettings *imapaint = &scene->toolsettings->imapaint;		const ImagePaintSettings *imapaint = &scene->toolsettings->imapaint;
const bool masking_enabled = imapaint->flag & IMAGEPAINT_PROJECT_LAYER_STENCIL &&
imapaint->stencil != NULL;

DRWShadingGroup *grp = DRW_shgroup_create(masking_enabled ? sh_data->image_mask : sh_data->image,		DRWShadingGroup *grp = DRW_shgroup_create(sh_data->stencil_mask_overlay,
psl->image_faces);		psl->stencil_mask_overlay);
DRW_shgroup_uniform_texture(grp, "image", texture);
DRW_shgroup_uniform_bool_copy(
grp, "imagePremultiplied", (image->alpha_mode == IMA_ALPHA_PREMUL));
DRW_shgroup_uniform_float(grp, "alpha", &draw_ctx->v3d->overlay.texture_paint_mode_opacity, 1);		DRW_shgroup_uniform_float(grp, "alpha", &draw_ctx->v3d->overlay.texture_paint_mode_opacity, 1);
DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);		DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo);
DRW_shgroup_uniform_bool_copy(grp, "nearestInterp", nearest_interp);

if (masking_enabled) {
const bool masking_inverted = (imapaint->flag & IMAGEPAINT_PROJECT_LAYER_STENCIL_INV) > 0;		const bool masking_inverted = (imapaint->flag & IMAGEPAINT_PROJECT_LAYER_STENCIL_INV) > 0;
GPUTexture *stencil = GPU_texture_from_blender(imapaint->stencil, NULL, GL_TEXTURE_2D);		GPUTexture *stencil = GPU_texture_from_blender(imapaint->stencil, NULL, GL_TEXTURE_2D);
DRW_shgroup_uniform_texture(grp, "maskingImage", stencil);		DRW_shgroup_uniform_texture(grp, "maskingImage", stencil);
DRW_shgroup_uniform_bool_copy(		DRW_shgroup_uniform_bool_copy(
grp, "maskingImagePremultiplied", (imapaint->stencil->alpha_mode == IMA_ALPHA_PREMUL));		grp, "maskingImagePremultiplied", (imapaint->stencil->alpha_mode == IMA_ALPHA_PREMUL));
DRW_shgroup_uniform_vec3(grp, "maskingColor", imapaint->stencil_col, 1);		DRW_shgroup_uniform_vec3(grp, "maskingColor", imapaint->stencil_col, 1);
DRW_shgroup_uniform_bool_copy(grp, "maskingInvertStencil", masking_inverted);		DRW_shgroup_uniform_bool_copy(grp, "maskingInvertStencil", masking_inverted);
}
return grp;		return grp;
}		}

		static bool PAINT_TEXTURE_stencil_mask_enabled(const ImagePaintSettings *imapaint)
		{
		return imapaint->flag & IMAGEPAINT_PROJECT_LAYER_STENCIL && imapaint->stencil != NULL;
		}

/* Here init all passes and shading groups		/* Here init all passes and shading groups
* Assume that all Passes are NULL */		* Assume that all Passes are NULL */
static void PAINT_TEXTURE_cache_init(void *vedata)		static void PAINT_TEXTURE_cache_init(void *vedata)
{		{
PAINT_TEXTURE_PassList psl = ((PAINT_TEXTURE_Data )vedata)->psl;		PAINT_TEXTURE_PassList psl = ((PAINT_TEXTURE_Data )vedata)->psl;
PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;		PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;

const DRWContextState *draw_ctx = DRW_context_state_get();		const DRWContextState *draw_ctx = DRW_context_state_get();
PAINT_TEXTURE_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];

/* Create a pass */
{
DRWPass *pass = DRW_pass_create(
"Image Color Pass", DRW_STATE_WRITE_COLOR \| DRW_STATE_DEPTH_EQUAL \| DRW_STATE_BLEND_ALPHA);
DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->fallback, pass);

/* Uniforms need a pointer to it's value so be sure it's accessible at
* any given time (i.e. use static vars) */
static const float color[4] = {1.0f, 0.0f, 1.0f, 1.0};
DRW_shgroup_uniform_vec4(shgrp, "color", color, 1);

if (draw_ctx->sh_cfg == GPU_SHADER_CFG_CLIPPED) {
DRW_shgroup_state_enable(shgrp, DRW_STATE_CLIP_PLANES);
}
psl->image_faces = pass;
stl->g_data->shgroup_fallback = shgrp;
}

MEM_SAFE_FREE(stl->g_data->shgroup_image_array);

Object *ob = draw_ctx->obact;
if (ob && ob->type == OB_MESH) {
Scene *scene = draw_ctx->scene;		Scene *scene = draw_ctx->scene;
const ImagePaintSettings *imapaint = &scene->toolsettings->imapaint;		const ImagePaintSettings *imapaint = &scene->toolsettings->imapaint;
const bool use_material_slots = (imapaint->mode == IMAGEPAINT_MODE_MATERIAL);
const Mesh *me = ob->data;
const int mat_nr = max_ii(1, me->totcol);

stl->g_data->shgroup_image_array = MEM_mallocN(		PAINT_TEXTURE_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];
sizeof(stl->g_data->shgroup_image_array) (use_material_slots ? mat_nr : 1), __func__);

if (use_material_slots) {
for (int i = 0; i < mat_nr; i++) {
Material *ma = give_current_material(ob, i + 1);
Image *ima = (ma && ma->texpaintslot) ? ma->texpaintslot[ma->paint_active_slot].ima : NULL;
int interp = (ma && ma->texpaintslot) ? ma->texpaintslot[ma->paint_active_slot].interp : 0;
GPUTexture *tex = GPU_texture_from_blender(ima, NULL, GL_TEXTURE_2D);

if (tex) {		/* Stencil Mask */
DRWShadingGroup *grp = create_texture_paint_shading_group(		if (PAINT_TEXTURE_stencil_mask_enabled(imapaint)) {
psl, ima, tex, draw_ctx, interp == SHD_INTERP_CLOSEST);		DRWState state = DRW_STATE_WRITE_COLOR \| DRW_STATE_DEPTH_EQUAL \| DRW_STATE_BLEND_ALPHA;
stl->g_data->shgroup_image_array[i] = grp;		psl->stencil_mask_overlay = DRW_pass_create("Stencil Mask Pass", state);
}		stl->g_data->shgroup_stencil_mask = create_texture_paint_stencil_mask_shading_group(psl,
else {		draw_ctx);
stl->g_data->shgroup_image_array[i] = NULL;
}
}
}
else {
Image *ima = imapaint->canvas;
GPUTexture *tex = GPU_texture_from_blender(ima, NULL, GL_TEXTURE_2D);

if (tex) {
DRWShadingGroup *grp = create_texture_paint_shading_group(
psl, ima, tex, draw_ctx, imapaint->interp == IMAGEPAINT_INTERP_CLOSEST);
stl->g_data->shgroup_image_array[0] = grp;
}
else {
stl->g_data->shgroup_image_array[0] = NULL;
}
}
}		}

/* Face Mask */		/* Face Mask */
{		{
DRWState state = DRW_STATE_WRITE_COLOR \| DRW_STATE_WRITE_DEPTH \| DRW_STATE_DEPTH_LESS_EQUAL;		DRWState state = DRW_STATE_WRITE_COLOR \| DRW_STATE_WRITE_DEPTH \| DRW_STATE_DEPTH_LESS_EQUAL;
DRWPass *pass = DRW_pass_create("Wire Mask Pass", state);		DRWPass *pass = DRW_pass_create("Wire Mask Pass", state);
DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->wire_select_overlay, pass);		DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->wire_select_overlay, pass);

Show All 28 Lines	static void PAINT_TEXTURE_cache_populate(void vedata, Object ob)
PAINT_TEXTURE_PassList psl = ((PAINT_TEXTURE_Data )vedata)->psl;		PAINT_TEXTURE_PassList psl = ((PAINT_TEXTURE_Data )vedata)->psl;
PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;		PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;
const DRWContextState *draw_ctx = DRW_context_state_get();		const DRWContextState *draw_ctx = DRW_context_state_get();

UNUSED_VARS(psl, stl);		UNUSED_VARS(psl, stl);

if ((ob->type == OB_MESH) && (draw_ctx->obact == ob)) {		if ((ob->type == OB_MESH) && (draw_ctx->obact == ob)) {
/* Get geometry cache */		/* Get geometry cache */
const Mesh *me = ob->data;
const Mesh *me_orig = DEG_get_original_object(ob)->data;		const Mesh *me_orig = DEG_get_original_object(ob)->data;
Scene *scene = draw_ctx->scene;		Scene *scene = draw_ctx->scene;
const bool use_surface = draw_ctx->v3d->overlay.texture_paint_mode_opacity !=		const ImagePaintSettings *imapaint = &scene->toolsettings->imapaint;
0.0; // DRW_object_is_mode_shade(ob) == true;
const bool use_material_slots = (scene->toolsettings->imapaint.mode ==
IMAGEPAINT_MODE_MATERIAL);
const bool use_face_sel = (me_orig->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;

if (use_surface) {		const bool use_face_sel = (me_orig->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
if (me->mloopuv != NULL) {		const bool masking_enabled = imapaint->flag & IMAGEPAINT_PROJECT_LAYER_STENCIL &&
if (use_material_slots) {		imapaint->stencil != NULL;
int mat_nr = max_ii(1, me->totcol);
struct GPUBatch **geom_array = DRW_cache_mesh_surface_texpaint_get(ob);

for (int i = 0; i < mat_nr; i++) {		if (masking_enabled) {
const int index = use_material_slots ? i : 0;		if (stl->g_data->shgroup_stencil_mask) {
if ((i < me->totcol) && stl->g_data->shgroup_image_array[index]) {
DRW_shgroup_call(stl->g_data->shgroup_image_array[index], geom_array[i], ob);
}
else {
DRW_shgroup_call(stl->g_data->shgroup_fallback, geom_array[i], ob);
}
}
}
else {
if (stl->g_data->shgroup_image_array[0]) {
struct GPUBatch *geom = DRW_cache_mesh_surface_texpaint_single_get(ob);		struct GPUBatch *geom = DRW_cache_mesh_surface_texpaint_single_get(ob);
DRW_shgroup_call(stl->g_data->shgroup_image_array[0], geom, ob);		DRW_shgroup_call(stl->g_data->shgroup_stencil_mask, geom, ob);
}
}
}
else {
struct GPUBatch *geom = DRW_cache_mesh_surface_get(ob);
DRW_shgroup_call(stl->g_data->shgroup_fallback, geom, ob);
}		}
}		}

/* Face Mask */		/* Face Mask */
if (use_face_sel) {		if (use_face_sel) {
struct GPUBatch *geom;		struct GPUBatch *geom;
geom = DRW_cache_mesh_surface_edges_get(ob);		geom = DRW_cache_mesh_surface_edges_get(ob);
DRW_shgroup_call(stl->g_data->lwire_select_shgrp, geom, ob);		DRW_shgroup_call(stl->g_data->lwire_select_shgrp, geom, ob);

geom = DRW_cache_mesh_surface_get(ob);		geom = DRW_cache_mesh_surface_get(ob);
DRW_shgroup_call(stl->g_data->face_select_shgrp, geom, ob);		DRW_shgroup_call(stl->g_data->face_select_shgrp, geom, ob);
}		}
}		}
}		}

/* Optional: Post-cache_populate callback */
static void PAINT_TEXTURE_cache_finish(void *vedata)
{
PAINT_TEXTURE_PassList psl = ((PAINT_TEXTURE_Data )vedata)->psl;
PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;

/* Do something here! dependent on the objects gathered */
UNUSED_VARS(psl);

MEM_SAFE_FREE(stl->g_data->shgroup_image_array);
}

/* Draw time ! Control rendering pipeline from here */		/* Draw time ! Control rendering pipeline from here */
static void PAINT_TEXTURE_draw_scene(void *vedata)		static void PAINT_TEXTURE_draw_scene(void *vedata)
{		{
PAINT_TEXTURE_PassList psl = ((PAINT_TEXTURE_Data )vedata)->psl;		PAINT_TEXTURE_PassList psl = ((PAINT_TEXTURE_Data )vedata)->psl;
PAINT_TEXTURE_FramebufferList fbl = ((PAINT_TEXTURE_Data )vedata)->fbl;
PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;		PAINT_TEXTURE_StorageList stl = ((PAINT_TEXTURE_Data )vedata)->stl;

/* Default framebuffer and texture */		/* Default framebuffer and texture */
		jbakkerAuthorUnsubmitted Done Inline Actions Remove comment jbakker: Remove comment
DefaultFramebufferList *dfbl = DRW_viewport_framebuffer_list_get();		if (psl->stencil_mask_overlay) {
DefaultTextureList *dtxl = DRW_viewport_texture_list_get();		DRW_draw_pass(psl->stencil_mask_overlay);
		}
UNUSED_VARS(fbl, dfbl, dtxl);

DRW_draw_pass(psl->image_faces);

DRW_draw_pass(psl->face_select_overlay);		DRW_draw_pass(psl->face_select_overlay);

DRW_view_set_active(stl->g_data->view_wires);		DRW_view_set_active(stl->g_data->view_wires);
DRW_draw_pass(psl->wire_select_overlay);		DRW_draw_pass(psl->wire_select_overlay);

DRW_view_set_active(NULL);		DRW_view_set_active(NULL);
}		}
Show All 19 Lines	DrawEngineType draw_engine_paint_texture_type = {
NULL,		NULL,
NULL,		NULL,
N_("PaintTextureMode"),		N_("PaintTextureMode"),
&PAINT_TEXTURE_data_size,		&PAINT_TEXTURE_data_size,
&PAINT_TEXTURE_engine_init,		&PAINT_TEXTURE_engine_init,
&PAINT_TEXTURE_engine_free,		&PAINT_TEXTURE_engine_free,
&PAINT_TEXTURE_cache_init,		&PAINT_TEXTURE_cache_init,
&PAINT_TEXTURE_cache_populate,		&PAINT_TEXTURE_cache_populate,
&PAINT_TEXTURE_cache_finish,		NULL,
NULL, /* draw_background but not needed by mode engines */		NULL, /* draw_background but not needed by mode engines */
&PAINT_TEXTURE_draw_scene,		&PAINT_TEXTURE_draw_scene,
NULL,		NULL,
NULL,		NULL,
};		};