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Fix lines used in item with custom shader

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Lines are batched using the simplest fvf 'BatchVertex', however when used in an item with a custom shader material, it may attempt to translate to large_fvf without the required extra channels. To prevent this a special case in flushing is made to deal with lines.
This commit is contained in:
lawnjelly 2020-10-26 17:45:44 +00:00
parent 4ece7c287f
commit 586285639a
1 changed files with 42 additions and 26 deletions
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68
drivers/gles_common/rasterizer_canvas_batcher.h
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@ -536,7 +536,7 @@ protected:
private:
// flush once full or end of joined item
void flush_render_batches(RasterizerCanvas::Item *p_first_item, RasterizerCanvas::Item *p_current_clip, bool &r_reclip, typename T_STORAGE::Material *p_material);
void flush_render_batches(RasterizerCanvas::Item *p_first_item, RasterizerCanvas::Item *p_current_clip, bool &r_reclip, typename T_STORAGE::Material *p_material, uint32_t p_sequence_batch_type_flags);
// a single joined item can contain multiple itemrefs, and thus create lots of batches
bool prefill_joined_item(FillState &r_fill_state, int &r_command_start, RasterizerCanvas::Item *p_item, RasterizerCanvas::Item *p_current_clip, bool &r_reclip, typename T_STORAGE::Material *p_material);
@ -2190,7 +2190,7 @@ PREAMBLE(bool)::prefill_joined_item(FillState &r_fill_state, int &r_command_star
return false;
}
PREAMBLE(void)::flush_render_batches(RasterizerCanvas::Item *p_first_item, RasterizerCanvas::Item *p_current_clip, bool &r_reclip, typename T_STORAGE::Material *p_material) {
PREAMBLE(void)::flush_render_batches(RasterizerCanvas::Item *p_first_item, RasterizerCanvas::Item *p_current_clip, bool &r_reclip, typename T_STORAGE::Material *p_material, uint32_t p_sequence_batch_type_flags) {
// some heuristic to decide whether to use colored verts.
// feel free to tweak this.
@ -2198,34 +2198,47 @@ PREAMBLE(void)::flush_render_batches(RasterizerCanvas::Item *p_first_item, Raste
// .. however probably not necessary
bdata.use_colored_vertices = false;
// switch from regular to colored?
if (bdata.fvf == RasterizerStorageCommon::FVF_REGULAR) {
// only check whether to convert if there are quads (prevent divide by zero)
// and we haven't decided to prevent color baking (due to e.g. MODULATE
// being used in a shader)
if (bdata.total_quads && !(bdata.joined_item_batch_flags & RasterizerStorageCommon::PREVENT_COLOR_BAKING)) {
// minus 1 to prevent single primitives (ratio 1.0) always being converted to colored..
// in that case it is slightly cheaper to just have the color as part of the batch
float ratio = (float)(bdata.total_color_changes - 1) / (float)bdata.total_quads;
RasterizerStorageCommon::FVF backup_fvf = bdata.fvf;
// use bigger than or equal so that 0.0 threshold can force always using colored verts
if (ratio >= bdata.settings_colored_vertex_format_threshold) {
// the batch type in this flush can override the fvf from the joined item.
// The joined item uses the material to determine fvf, assuming a rect...
// however with custom drawing, lines or polys may be drawn.
// lines contain no color (this is stored in the batch), and polys contain vertex and color only.
if (p_sequence_batch_type_flags & (RasterizerStorageCommon::BTF_LINE | RasterizerStorageCommon::BTF_LINE_AA)) {
// do nothing, use the default regular FVF
bdata.fvf = RasterizerStorageCommon::FVF_REGULAR;
} else {
// switch from regular to colored?
if (bdata.fvf == RasterizerStorageCommon::FVF_REGULAR) {
// only check whether to convert if there are quads (prevent divide by zero)
// and we haven't decided to prevent color baking (due to e.g. MODULATE
// being used in a shader)
if (bdata.total_quads && !(bdata.joined_item_batch_flags & RasterizerStorageCommon::PREVENT_COLOR_BAKING)) {
// minus 1 to prevent single primitives (ratio 1.0) always being converted to colored..
// in that case it is slightly cheaper to just have the color as part of the batch
float ratio = (float)(bdata.total_color_changes - 1) / (float)bdata.total_quads;
// use bigger than or equal so that 0.0 threshold can force always using colored verts
if (ratio >= bdata.settings_colored_vertex_format_threshold) {
bdata.use_colored_vertices = true;
bdata.fvf = RasterizerStorageCommon::FVF_COLOR;
}
}
// if we used vertex colors
if (bdata.vertex_colors.size()) {
bdata.use_colored_vertices = true;
bdata.fvf = RasterizerStorageCommon::FVF_COLOR;
}
// needs light angles?
if (bdata.use_light_angles) {
bdata.fvf = RasterizerStorageCommon::FVF_LIGHT_ANGLE;
}
}
// if we used vertex colors
if (bdata.vertex_colors.size()) {
bdata.use_colored_vertices = true;
bdata.fvf = RasterizerStorageCommon::FVF_COLOR;
}
// needs light angles?
if (bdata.use_light_angles) {
bdata.fvf = RasterizerStorageCommon::FVF_LIGHT_ANGLE;
}
}
backup_fvf = bdata.fvf;
} // if everything else except lines
// translate if required to larger FVFs
switch (bdata.fvf) {
@ -2264,6 +2277,9 @@ PREAMBLE(void)::flush_render_batches(RasterizerCanvas::Item *p_first_item, Raste
#endif
get_this()->render_batches(commands, p_current_clip, r_reclip, p_material);
// if we overrode the fvf for lines, set it back to the joined item fvf
bdata.fvf = backup_fvf;
}
PREAMBLE(void)::render_joined_item_commands(const BItemJoined &p_bij, RasterizerCanvas::Item *p_current_clip, bool &r_reclip, typename T_STORAGE::Material *p_material, bool p_lit) {
@ -2332,7 +2348,7 @@ PREAMBLE(void)::render_joined_item_commands(const BItemJoined &p_bij, Rasterizer
if (bFull) {
// always pass first item (commands for default are always first item)
flush_render_batches(first_item, p_current_clip, r_reclip, p_material);
flush_render_batches(first_item, p_current_clip, r_reclip, p_material, fill_state.sequence_batch_type_flags);
// zero all the batch data ready for a new run
bdata.reset_flush();
@ -2344,7 +2360,7 @@ PREAMBLE(void)::render_joined_item_commands(const BItemJoined &p_bij, Rasterizer
}
// flush if any left
flush_render_batches(first_item, p_current_clip, r_reclip, p_material);
flush_render_batches(first_item, p_current_clip, r_reclip, p_material, fill_state.sequence_batch_type_flags);
// zero all the batch data ready for a new run
bdata.reset_flush();